#linuxcnc | Logs for 2015-10-01

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[00:01:04] <Wolf_Mill> meh
[00:01:55] <Wolf_Mill> I think I got one resistor
[00:04:50] <MacGalempsy> nice negotiation Contract_Pilot
[00:05:10] <MacGalempsy> better to make a little than nothing
[00:05:20] <Contract_Pilot> Yep.
[00:09:45] <t12> hm
[00:09:48] <t12> lathe relevel success
[00:11:08] <MacGalempsy> NOW THATS A HAND SAW! http://www.ebay.com/itm/Japanese-Nokogiri-Maebiki-pull-saw-pullsaw-carpentry-daiku-TOOLS-chisels-nomi-/181840035810?hash=item2a5682bfe2
[00:34:33] <Wolf_Mill> 0.o dammit
[00:34:57] <Wolf_Mill> 0.95ohm and 0.074ohm
[00:39:18] <Wolf_Mill> err 0.093ohm...
[00:45:06] <Wolf_Mill> hmm 0.217 and 0.074 ohm... puts me at 0.055...
[00:46:26] <MacGalempsy> https://www.youtube.com/watch?v=SBeUX06Dvpw
[00:46:50] <MacGalempsy> kind of Haas propoganda, but pretty cool
[01:42:10] <Contract_Pilot> Wish i had 10K liquid. http://www.ebay.com/itm/401000660423
[01:43:18] <Wolf_> too small, only enough room on the table for my mill and lathe, but not my toolbox
[01:57:06] <Contract_Pilot> not a bad buy for 1.00 www.ebay.com/itm/191704276261
[01:58:02] <Wolf_> yup
[01:59:22] <Jymmm> could build a decade box
[01:59:28] <Contract_Pilot> think i got ripped on a tool holder been 14 days tracking sill says lable created.
[02:00:32] <Contract_Pilot> I think my sister needs to turn he self in friday! 42 Months in the joint
[02:01:06] <Jymmm> for?
[02:01:19] <Contract_Pilot> She did a year about 15 years ago for same thing selling dope to a UC
[02:01:26] <Contract_Pilot> this time it was a Fed!
[02:01:30] <Contract_Pilot> DEA
[02:01:35] <Jymmm> Levinworth?
[02:01:53] <Contract_Pilot> I am in WA state
[02:02:16] <Jymmm> Federal Prison = Fort Levinworth KY
[02:14:41] <DJ9DJ> moin
[02:37:38] <anomynous> https://www.youtube.com/watch?v=c_cmonQPXe0
[02:58:23] <Contract_Pilot> Not sure if i want to go prox switches on these sherline or manual.
[03:02:03] <archivist> you can live without homing and limit switches for a while
[03:04:11] <archivist> I have been living without
[03:05:38] <Wolf_> I’’m not sure how much I trust my prof switches
[03:05:42] <Wolf_> prox*
[03:23:45] <Contract_Pilot> Machine has 2 micro switchs now.
[03:25:10] <Contract_Pilot> Ahhh 6th beer in 4 months not bad
[03:25:31] <Contract_Pilot> Already lost 20lbs hahah
[03:26:28] <archivist> I am at no beer in over a year, and then probably 3 in 5 years
[03:27:31] <archivist> instead of bad habits get boys toys, the CMM being my latest
[03:31:28] <gonzo_> but having that beer at 9am ?!
[03:35:21] <Wolf_> only 4 here
[03:35:27] <Wolf_> in the am...
[03:35:36] <SpeedEvil> Contract_Pilot: congrats
[03:36:23] <Contract_Pilot> 1am here
[03:36:45] <Contract_Pilot> Now wish i could quit smoking.
[03:36:58] <archivist> just stop
[03:37:18] <SpeedEvil> e-cigs
[03:37:34] <SpeedEvil> They may not be 100% less harmful, but so much less that it's ridiculous
[03:37:42] <Wolf_> ^ different nicotine delivery system
[03:37:47] <SpeedEvil> Also, you could buy a silly thing off zeeshan|2.
[03:38:13] <Contract_Pilot> Tried e-cig not for me
[03:38:19] <SpeedEvil> Contract_Pilot: why not?
[03:38:25] <Contract_Pilot> I od's
[03:38:31] <Wolf_> I’ve been using them for 3-4years now
[03:38:33] <Contract_Pilot> OD'ed
[03:38:37] <SpeedEvil> Contract_Pilot: What?
[03:38:48] <SpeedEvil> There are various nicotine strengths
[03:38:50] <Wolf_> portait, don’t drink the fluid
[03:38:59] <Wolf_> pro-tip*
[03:39:06] <Wolf_> FU autocorrect
[03:39:33] <Contract_Pilot> When you hit and your tank leaks and mouth full of juice nope.
[03:40:02] <Contract_Pilot> and never could get a good mix of PG or VG
[03:40:10] <archivist> I stopped the smoking habit when at school, could not cycle in my usual manner and ride
[03:40:15] <Wolf_> tank systems are beyond what they were a year ago
[03:40:44] <Contract_Pilot> Maybe i invested in a mod and about 4 diffrent tanks
[03:40:57] <Contract_Pilot> still have a quart of nic solution
[03:41:27] <Contract_Pilot> 'Never could get the flavors right.
[03:41:37] <Wolf_> I run a aspire atlantis, 80% vg mix, 6mg
[03:41:40] <Contract_Pilot> but they been sitting a year maybe aged long enough
[03:41:53] <Contract_Pilot> Shit i am a 3pk a day smoker
[03:42:10] <Wolf_> I was a pack a day
[03:42:23] <Contract_Pilot> I think my LDL was 200+ hahah
[03:43:31] <SpeedEvil> 3 packs a day! wow.
[03:43:52] <SpeedEvil> Alternatively, have you considered finding a lung donor?
[03:44:24] <Wolf_> 3 packs a day, thats like smoking a mesa a week :P
[03:46:13] <SpeedEvil> http://cen.acs.org/articles/93/web/2015/09/Mealworms-Munch-Polystyrene-Foam.html
[03:59:54] <Contract_Pilot> I roll my own
[04:00:26] <Contract_Pilot> so ryo figures
[04:00:58] <Contract_Pilot> about a lb every 4-5 days at 11.00 a lb
[04:05:18] <MacGalempsy> for that kind of cash, one would be better off moving to Denver and smoking other stuff
[04:06:49] <Wolf_> ok, then start billing yourself the hours spent rolling :P
[04:07:24] <MacGalempsy> maybe one could make a LCNC cigarette rolling machine
[04:07:35] <MacGalempsy> how many axes would that device need?
[04:12:05] <Contract_Pilot> 2
[04:12:27] <Contract_Pilot> The nema 8's may work
[04:12:54] <SpeedEvil> $11/lb is the very smallest part of the cost.
[04:13:14] <SpeedEvil> especially if you're not filtering
[04:14:30] <Contract_Pilot> May give it a go! they only http://www.walmart.com/ip/46935680
[04:15:13] <Contract_Pilot> a case of 250 count tubes 40 boxes is 100.00 to my door amazon prime
[04:15:40] <Contract_Pilot> may need 3 axis for tobacco load
[04:16:37] <Contract_Pilot> beer 7 my allowed 2 beers every 4 days
[04:17:06] <MacGalempsy> WTF walmart sell that ?
[04:17:49] <SpeedEvil> MacGalempsy: 'no'
[04:18:02] <SpeedEvil> Think amazon stores but for wallmart
[04:18:10] <MacGalempsy> ah, ok
[04:18:11] <SpeedEvil> Sold by Tasharina Corp | Return policy
[04:18:11] <SpeedEvil> Learn about Marketplace Retailers
[04:18:21] <MacGalempsy> I see that now
[04:18:37] <SpeedEvil> Teeny stepper is teeny
[04:19:02] <MacGalempsy> perfect for a blunt....er.... cigarette roller
[04:20:49] <Contract_Pilot> yep.
[04:21:01] <MacGalempsy> anyone know what is the max diameter facing mill for a 2HP spindle?
[04:21:03] <Contract_Pilot> I in wa it is legal here but i do not partake
[04:21:09] <Contract_Pilot> 3"
[04:21:21] <Contract_Pilot> maybe 2.5"
[04:21:30] <Contract_Pilot> depends on how many cutters
[04:21:32] <MacGalempsy> I was thinking this 4" 8-insert would be a nice addition
[04:21:46] <SpeedEvil> And I guess the speed?
[04:21:46] <MacGalempsy> guess the cut just needs to be small
[04:21:55] <Contract_Pilot> and slow
[04:22:09] <MacGalempsy> max rpm is 5000, so I tihnk like 700-800 would be ok?
[04:22:09] <SpeedEvil> Gearing and rigidity I guess.
[04:22:19] <Contract_Pilot> Looks like i may need to build a colum riser on this sherline
[04:22:20] <SpeedEvil> MacGalempsy: Is it a geared spindle?
[04:22:29] <MacGalempsy> no AC 30amp
[04:22:37] <SpeedEvil> MacGalempsy: because if it's not, you may have much, much less horsepower at 700rpm
[04:23:01] <MacGalempsy> well, it maybe geared because the motor is offset from the spindle
[04:23:04] <SpeedEvil> Is there a lower RPM limit if your machine is rigid enough? Can you cut at 1RPM?
[04:23:11] <SpeedEvil> MacGalempsy: I mean adjustably geared
[04:23:29] <MacGalempsy> no adjustable gear, just vfd
[04:23:57] <SpeedEvil> Then yeah - you've not got 2hp@700RPM
[04:24:21] <SpeedEvil> http://www.ebay.co.uk/itm/331658649399?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT - within 5 miles
[04:24:22] <SpeedEvil> sigh
[04:24:24] <SpeedEvil> temptation
[04:26:39] <MacGalempsy> heh. I hear you on that SpeedEvil. every ad is another machine I need in my garage, but need to finish the ones I have first!
[04:27:04] <SpeedEvil> I technically have a bigger lathe.
[04:27:21] <SpeedEvil> But it has no toolpost or slide, and teh spindle has a 2 degree bend in it.
[04:29:31] <archivist> Contract_Pilot, I just bought a milling machine box as a riser for my column
[04:30:09] <Contract_Pilot> only need 1.5" extra
[04:30:39] <Contract_Pilot> http://www.stevenrhine.com/wp-content/uploads/2015/09/AR-CNC-576x1024.jpg
[04:31:06] <archivist> I added a bit more than that http://www.collection.archivist.info/archive/DJCPD/PD/2009/2009_07_10_cnc_with_LCD_P4/IMG_0268.JPG
[04:32:26] <Contract_Pilot> unless i can firure out how to make a helicol interpetation to give me a .2187 radious corver with a 3/8 end mill
[04:33:38] <Contract_Pilot> but not sure about rigity with a 3/8 end mill 3" loc
[04:34:05] <Contract_Pilot> slow site
[04:34:14] <archivist> adding strengthening to column time
[04:34:31] <archivist> it served from home
[04:34:47] <Contract_Pilot> ahhh
[04:36:17] <archivist> and its worse when an entire channel all try looking at the same time
[04:38:45] <Contract_Pilot> I want to dedicate this machine to AR-15 and 1911's
[05:00:37] <XXCoder> lathe lather
[05:00:41] <XXCoder> hey all
[05:09:13] <MacGalempsy> hey XXCoder
[05:09:22] <XXCoder> whats up
[05:10:00] <MacGalempsy> not much, just made a webcam mount for this swinging magnifying glass. watching a caterpillar eating a leaf
[05:10:39] <MacGalempsy> what are you up to?
[05:10:44] <Contract_Pilot> lots to learn
[05:11:40] <XXCoder> made 296 parts the boringest way possble
[05:11:58] <MacGalempsy> what parts?
[05:12:06] <XXCoder> the cycle is such that it takes me LONGER to setup parts than it runs. so I'm never rested
[05:12:20] <MacGalempsy> dang. not auto touchoffs?
[05:12:32] <XXCoder> good thing it has bit strange setup where part of fixture is quick swappable
[05:12:37] <XXCoder> and theres 2 of part of fixture
[05:12:47] <Contract_Pilot> Path Pilot need seeds! magnet:?xt=urn:btih:BAF492B830E92636EF253242BA5B272B674EB9CD&dn=Tormach%20PathPilot%20Restore%20Disk%20V1.9.2b.iso&tr=udp%3a%2f%2ftracker.openbittorrent.com%3a80%2fannounce
[05:12:54] <XXCoder> so I can work while its running. (dang since it gives me no rest! :( )(
[05:13:20] <Contract_Pilot> Down to 2 seeds people please seed! help the comunity
[05:13:24] <MacGalempsy> almost forgot to do my timecard today!
[05:13:47] <MacGalempsy> how is it helping when you are giving away someone elses $30 product?
[05:14:21] <Contract_Pilot> Improvements!
[05:15:35] <Contract_Pilot> + they will not sell to internatational with out a machine serial!
[05:15:49] <XXCoder> I dont even know what path pilot is.
[05:16:00] <Contract_Pilot> Linux CNC
[05:16:07] <Contract_Pilot> with a GUI
[05:16:22] <MacGalempsy> looks like a fancy AXIS layout
[05:16:45] <Contract_Pilot> if they wanted to sell just their GIU they could have just made a GUI forsale
[05:17:24] <MacGalempsy> im pretty sure someone buying a tormach machine is not wanting to set up the controller interface after they just dropped all that coin
[05:18:05] <Contract_Pilot> Stripped down Router sucess... on LPT no mesa card! https://www.youtube.com/watch?v=ZgU57Zdec9I
[05:18:43] <Contract_Pilot> Yea but the GUI is Uber User Friendly!
[05:19:19] <MacGalempsy> who really cares about that? everyone knows the hardest part is the controller setup
[05:19:51] <Contract_Pilot> Yea, but INI hal Files are appearing how to mak eit work.
[05:21:21] <Contract_Pilot> sorry 2nd beer allowance
[05:33:45] <jthornton> 51F this morning
[05:36:48] <jdh> brr
[05:37:12] <jdh> 71f here and a brief period of no rain
[05:37:58] <XXCoder> 47f here
[05:38:05] <XXCoder> first foggy day
[05:38:15] <XXCoder> perfect since its oct 1!
[05:38:23] <jdh> I need to go add more fenders and lines to my boat for Joaquin
[05:38:25] <XXCoder> foggy night more like but yeah./
[05:44:54] <MacGalempsy> 53f here
[06:07:05] <_methods> comin straight at NC it looks like
[06:07:21] <_methods> wilmington gets blasted every time
[06:07:43] <_methods> that thing is just spinning up out there
[06:08:02] <_methods> i hope it doesn't hit new york i don't want to hear about that shit for the next 20 years
[06:10:28] <_methods> sandy wasnt even a hurricane and they're still whining about that one
[06:14:36] <malcom2073> Yeah, stupid people with 1ft of water in their house and without power for weeks, wtf were they complaining about :P
[06:14:57] <MacGalempsy> malcom2073: lol
[06:15:05] <MacGalempsy> what are you making to day malcom2073?
[06:15:32] <malcom2073> MacGalempsy: Stepper motors mounted!: https://scontent.xx.fbcdn.net/hphotos-xpa1/t31.0-8/12028650_1143085655705814_5572230064951336056_o.jpg
[06:15:43] <malcom2073> Well, they're set in place. Need to drill/tap the actual mount holes
[06:15:45] <MacGalempsy> nice!
[06:16:00] <malcom2073> Had a moment where I thought I'd have to buy new pulleys, then realized I could turn the onesI have around :)
[06:16:07] <MacGalempsy> cant wait until you are able to start making me stuff :P
[06:16:17] <malcom2073> Haha, you're closer to a working machine than I am :P
[06:16:20] <malcom2073> I can't spin my spindle yet
[06:16:33] <MacGalempsy> I cant spin mine either (thru lcnc)
[06:16:49] <malcom2073> I need a 3hp VFD
[06:16:56] <Sync> did you finally verify the output works?
[06:16:58] <MacGalempsy> but last night I pulled the spindle off because the carriage wouldnt hit the limit switch
[06:17:03] <malcom2073> Heh
[06:17:18] <MacGalempsy> the mesa output does not work...
[06:17:39] <MacGalempsy> i posted on the forums but have yet to get a response to help fix the issue.
[06:18:05] <MacGalempsy> I did get the touchprobe to work with the interface, so just a few more things and I can put the back back on.
[06:18:15] <Sync> did you set the output manually as I said?
[06:18:18] <MacGalempsy> they we will have a back putting on party!
[06:18:56] <MacGalempsy> I tried, but there were too many writers
[06:19:54] <MacGalempsy> next will be putting the table off to get the y axis to actually hit the switch every time. I think too many crashes jarred the table off a little
[06:21:34] <Sync> too many writers?
[06:23:36] <MacGalempsy> when using Hal configure, you can enter HALCMDS. but trying to switch certain pins and signals is futile
[06:23:44] <MacGalempsy> becuase they have writers
[06:24:55] <Sync> you can just deassign the others
[06:26:41] <MacGalempsy> it looks like a lot of people are having the same type of issue with PNCCONF in v2.7
[06:32:03] <malcom2073> MacGalempsy: Why not remove the writers in the hal file?
[06:33:07] <anomynous> how many people download linuxcnc a month?
[06:33:15] <MacGalempsy> honestly, I cannot figure out which ones they are. and monday I have a technical presentation to make. it will probably be later next week before I can spend the time.
[06:33:47] <MacGalempsy> hoping to be able to work on the stuff I have a clue about, then get to the harder crap when there is nothing else to do
[06:34:06] <Sync> if you have the presentation on monday, you have at least 2.5 days to play around
[06:34:12] <MacGalempsy> hahaha
[06:34:28] <MacGalempsy> maybe
[06:34:38] <malcom2073> heh
[06:34:49] <MacGalempsy> still working on the PPT
[06:35:36] <MacGalempsy> malcom2073: I got the pet caterpiller live on hangout
[06:35:57] <MacGalempsy> I think it is in a food comatose from that fat leaf its been munching on
[06:36:03] <malcom2073> Lol, can't join atm
[06:36:18] <malcom2073> Why do you have a pet caterpillar?
[06:37:47] <MacGalempsy> well, it was running along the garage floor, so I put it in the vacuum chamber / makeshift atrium that was going to be for the frogs I find running around
[06:38:24] <MacGalempsy> usually they get thrown back outside, but next time they will become pets
[06:38:35] <malcom2073> lol
[06:40:23] <_methods> frog abductor
[06:40:54] <MacGalempsy> the other day, one made its way into the shower, and the wife went crazy
[06:41:03] <MacGalempsy> she thought it was a spider
[06:41:05] <MacGalempsy> lol
[06:48:28] <malcom2073> Heh
[06:58:42] <_methods> wow animal/arachnid identification fail
[06:59:56] <malcom2073> +/- 100% leg count error
[07:00:38] <_methods> hehe
[07:10:28] <MacGalempsy> hahah
[07:15:08] <MacGalempsy> shop heater: which is preferable kerosene or propane?
[07:15:25] <XXCoder> lava
[07:15:47] <MacGalempsy> sorry, I live in a tectonic stable area, no volcanism
[07:16:17] <Tom_itx> JT-Shop, 55°F few clouds
[07:20:07] <_methods> i got one of those dual fuel heaters
[07:20:32] <Tom_itx> just don't burn the shop instead
[07:20:35] * jthornton waves from down in the beer cave
[07:20:41] <_methods> http://www.amazon.com/Mr-Heater-MH18B-Portable-Propane/dp/B0002WRHE8/ref=sr_1_2?ie=UTF8&qid=1443700595&sr=8-2&keywords=heater+buddy
[07:21:24] <_methods> you can hook it up to a propane tank or use those little camping fuel bottles
[07:21:32] <MacGalempsy> _methods: that one looks nice, but dont really want to drop $120 for a heater
[07:21:47] <_methods> i think they sell a smaller one that is like $80
[07:21:59] <Tom_itx> roll your grill inside
[07:22:03] <_methods> ^^
[07:22:04] <_methods> hahah
[07:22:06] <Tom_itx> you can have lunch once you warm up
[07:22:07] <MacGalempsy> now that is a great idea!
[07:22:08] <_methods> cook and heat
[07:22:14] <MacGalempsy> warmth and food
[07:22:19] <_methods> heeat and eat
[07:23:00] <_methods> i bought that heater for emergencies mostly since it can use pretty much any fuel and be used indoors
[07:23:04] <MacGalempsy> after watching that arc reactor video yesterday, I want to make one of those microwave welders
[07:23:17] <MacGalempsy> indoors is key
[07:23:20] <Tom_itx> i put radiant heat in mine
[07:23:28] <Tom_itx> piped to natural gas
[07:23:47] <MacGalempsy> last winter we went through 2 cords and ran out about a month early
[07:25:06] <_methods> we had kerosene heaters when i was a kid they worked fine too
[07:25:14] <_methods> just depends on what fuel you want to keep around
[07:25:39] <MacGalempsy> it seems like kerosene would be more joules per $$$
[07:26:01] <archivist> its BTU around here :)
[07:27:00] <MacGalempsy> heh. sorry for that metric term!
[07:27:01] <archivist> I need to insulate the garage to cuddle the CMM
[07:27:32] <MacGalempsy> archivist: which cmm do you have?
[07:27:55] <archivist> http://www.collection.archivist.info/searchv13.php?searchstr=brown%20sharpe%20cmm
[07:28:06] <archivist> circa 1994
[07:28:55] <MacGalempsy> nice subplate
[07:29:23] <_methods> http://uploads.neatorama.com/images/posts/123/85/85123/1443655138-0.jpg
[07:29:26] <MacGalempsy> all I have is a renishaw touchprobe and interface. hoping to use it on the mill
[07:29:43] <archivist> twisted! and has a broken screw in one of the holes, one been helicoiled, a few others in a state
[07:29:44] <_methods> who'da thunkit
[07:29:56] <_methods> raccoon defeats breathalyzer interlock
[07:30:15] <MacGalempsy> lol
[07:30:22] <_methods> racoon defeats driver
[07:31:45] <Sync> oh it is tiny
[07:32:37] <MacGalempsy> archivist: is that LCNC running the cmm?
[07:33:04] <archivist> no the original control with winxp and PC DMIS
[07:34:09] <archivist> there is a processor in the electronics box and serial comms to the pc
[07:36:04] <archivist> the rack holding the control was way over the top, de rigged it and parked some under the CMM
[07:36:49] <MacGalempsy> how often do you use it?
[07:37:39] <_methods> http://4.bp.blogspot.com/-zARSFlpDafw/VgxI3g3yHLI/AAAAAAAAA7w/dqz22voT6V0/s1600/dog.gif
[07:37:49] <_methods> all kinds of funnies on today
[07:37:56] <_methods> not kickstarter related funniez
[07:38:07] <archivist> MacGalempsy, only got it on Friday!
[07:38:15] <MacGalempsy> fun
[07:38:24] <MacGalempsy> glad to see its already up and running
[07:39:43] <MacGalempsy> my old company just laid off 20% of their OKC staff, ~550 ppl...
[07:40:07] <archivist> nobody is safe these days
[07:40:28] <MacGalempsy> that is why I need to get this CNC up and going... a backup plan
[07:40:56] <MacGalempsy> the programming class has been pretty informative
[07:41:31] <skunkworks> archivist: what ended up being the issue?
[07:42:01] <archivist> skunkworks, dirty contacts in the probe, wiggled it, life!
[07:43:15] <archivist> I have turned up the spring pressure and about to make another adapter so I can use more robust stylii on it
[07:43:45] <MacGalempsy> had a similar issue with this renishaw probe. the first night, nothing.... woke up the next morning all bummed out that it wasnt working, then bumped it with my elbow and it came to life
[07:45:11] <archivist> renishaw are a bit quiet about contact cleaning, they probably make a lot servicing them
[07:45:34] <MacGalempsy> they dont service any more, only swap out a fixed one
[07:45:53] <archivist> service exchange
[07:45:55] <MacGalempsy> the TP1s that does not work is $890 for a swap
[07:46:14] <archivist> get inside it, fix it
[07:46:30] <Tom_itx> archivist, if you're looking for probes: https://www.carbideprobes.com/
[07:46:44] <MacGalempsy> the ph6/tp2 works fine, so I am going to send it out to a company for a free estimate
[07:47:36] <MacGalempsy> I would be willing to trade some tips if someone wanted to write the ladder file for my ATC :)
[07:47:52] <MacGalempsy> I got lots of ruby tips in all kinds of assortment
[07:48:18] <archivist> I am finding a few stylii on fleabay
[07:48:59] <MacGalempsy> https://www.flickr.com/photos/58181938@N03/16587541542/in/dateposted-public/
[07:49:11] <MacGalempsy> here are some of the tips
[07:50:42] <MacGalempsy> those prices on carbideprobes make this box of mine look like a pot of gold!
[07:51:06] <Tom_itx> they're more reasonable than some
[07:52:13] <archivist> renishaw have some cheaper ones too, I saw one on their site for £14 yesterday
[07:52:51] <MacGalempsy> just think, a little programming any all you spend is time, not money :)
[07:53:22] <MacGalempsy> https://springfield.craigslist.org/tls/5175415075.html
[07:53:54] <archivist> a baby southbend
[07:54:29] <MacGalempsy> think that price is too high?
[07:55:00] <archivist> a lot more than I paid for mine 25 years ago
[07:55:29] <MacGalempsy> i would probably offer $800 and see what they say. its been around a while
[07:56:31] <archivist> southbends are priced in the USA like Myford over here
[07:56:38] <Tom_itx> is that about the same size as the old sears / atlas lathe?
[07:56:49] <archivist> its THE model makers choice
[07:57:10] <MacGalempsy> there are 3 or 4 of them on craigslist around here right now
[07:57:18] <archivist> £125 http://www.collection.archivist.info/searchv13.php?searchstr=southbend
[07:57:18] <MacGalempsy> that is the only one with the VFD installed
[07:57:58] <MacGalempsy> what a steal
[07:58:21] <archivist> very worn WW2 vintage
[07:59:01] <MacGalempsy> well guys, its time for me to hit the hay. have a good day!
[08:01:36] <_methods> yeah all the "model" makers snatch up those little lathes
[08:01:56] <_methods> if you can get one for under $1k you're probably doing good
[09:28:32] <ganzuul> \o/
[09:28:59] <ganzuul> Good the second hand pink wheel running.
[09:29:10] <ganzuul> Made my first machine part for it.
[09:29:22] <ganzuul> Hasn't exploded yet!
[09:30:18] <SpeedEvil> pink wheel?
[09:30:55] <ganzuul> 40 grit, with someone writing on it that it's for HSS.
[09:31:02] <ganzuul> 200mm
[09:31:25] <SpeedEvil> ah
[09:32:08] <ganzuul> ~got the wheel running
[09:32:18] <ganzuul> Gonna give it 5 minutes and then dress it.
[09:35:26] <SpeedEvil> Standing out of the plane of rotation is always a good plan
[09:37:12] <ganzuul> yup
[09:37:19] <ganzuul> It's in a separate room.
[09:39:27] <SpeedEvil> It can be harder to use if it's in another room.
[09:39:31] <SpeedEvil> Very safe though.
[09:43:20] <_abc_> Hello. Has anyone got info on brake resistor control / similar setups for vfd controlling spindle motor?
[09:43:44] <_abc_> I am looking for diy info, not for a proper vfd's brake resistor.
[09:44:29] <_abc_> Also how do you people handle smpsus for spindle powering which do not 'like' increasing voltage at output and enter shutdown mode as soon as they see a few volts more than the usual 28 or 36 or 48 output they are set for.
[09:45:27] <ganzuul> Oh you mean during use. Yeah, I've been keeping a 45 degree angle from it.
[09:48:33] <Sync> _abc_: decrease accel ramps or add more capacitance
[09:48:56] <Sync> usually vfds just kick the fet in if the voltage is over a certain threshold
[09:49:10] <SpeedEvil> _abc_: An external clamp could work
[09:49:24] <SpeedEvil> _abc_: shunt regulator controller, large resistor, FET
[09:49:26] <_abc_> SpeedEvil: clamps are not as simple as you think
[09:49:34] <SpeedEvil> yes they are.
[09:49:43] <SpeedEvil> I diddn't say it was very simple.
[09:50:10] <SpeedEvil> Ideally a PWM shunt regulator, though I don't know where to get a proper one.
[09:50:16] <SpeedEvil> (I have one based on a 555)
[09:50:20] <_abc_> Sync: it's not possible because the vfd runs open loop, the motor is induction type 60krpm. So closed loop requires a speed pickup which I do not have. When the motor unloads it generates and that kicks the psu.
[09:50:40] <_abc_> Sync: UC384x
[09:50:43] <_abc_> * SpeedEvil
[09:50:57] <_abc_> guys spread your nick initials out a bit please, tab completion is hard.
[09:50:58] <SpeedEvil> _abc_: if you have spare current, the stupid solution is a parallel resistor
[09:51:26] <_abc_> SpeedEvil: I tried that. The motor goes into quadrant 3 and kicks the psu with a delta-v of 10% or so.
[09:51:40] <SpeedEvil> I mean on the DC side
[09:51:46] <_abc_> SpeedEvil: I am going to try a power diode and large cap filter bank after it to disconnect the psu from the load
[09:52:00] <_abc_> SpeedEvil: yes dc side, that's what I am on about all the time.
[09:52:23] <SpeedEvil> I mean a parallel resistor that draws current more than the absolute peak of teh negative current.
[09:52:26] <SpeedEvil> So it is always >0
[09:53:02] <_abc_> Also there is a resonant effect when the induction motor generates, it rises the dc bus, which accelerates the motor, which drops the bus, which causes the motor to be lagged by the field, then it generates again. Fun.
[09:53:35] <_abc_> SpeedEvil: It does not work that way. Time constant is in the 10s range for the 60k rpm motor, you need a huge resistor and it still causes problems.
[09:54:07] <SpeedEvil> It works. If you have enough power supply capacity and you can cope with the large dissipation
[09:54:09] <_abc_> The solution is to disconnect the psu from the load (but see bus oscillation above) or to use a special active clamp which I designed and simulated but have not tried out yet.
[09:54:23] <_abc_> SpeedEvil: I can't, really. I can't justify a 50W resistor.
[09:54:26] <SpeedEvil> I actually have one partially built, based around a 555.
[09:54:30] <SpeedEvil> Fair enough
[09:54:49] <SpeedEvil> - 500W PWM shunt regulator for 28.8V
[09:55:10] <_abc_> SpeedEvil: I can understand that, you're in Scotland and Winter is coming.
[09:57:46] <_abc_> Anyone else? Tried a series power Shottky diode on heatsink between balky psu and load vfd/spindle drive?
[10:02:30] <Sync> why can't you justify a 50W resistor? they come in small sizes
[10:02:40] <Sync> maybe just use a vector drive
[10:02:43] <Sync> so you can ramp down
[10:03:12] <_abc_> Are you buying me one? Vector drive does not work with such small induction motors, there is not enough feedback signal from the special core they use.
[10:04:51] <Sync> that depends on the drive, I've not have had issues with feedback
[10:04:56] <_abc_> Thanks for the ideas, bbl
[10:05:16] <Sync> a 50W resistor is like $4 0o
[10:05:26] <_abc_> Sync: with an *induction* motor? Careful, induction != permanent magnet.
[10:05:31] <Sync> yes
[10:06:03] <_abc_> Right, so, this drive does not work like that, it only works open loop with that particular motor
[10:06:06] <_abc_> bbl
[10:09:02] <magnifikus> so anyone using probekins?
[10:09:23] <magnifikus> got it compiled (with fixing shm_getptr) but insmod fails with -1 and dmesg is empty
[10:32:53] * JT-Shop wishes he knew why the GS2 gets confused and starts from scratch... AD said something on the modbus was changing it
[10:35:27] <SpeedEvil> Sync: Disconnecting the VFD under reverse load may cuase the voltage to spike quite high
[10:36:40] <SpeedEvil> I think with a diode, a very small resistor, a power bipolar and a resistor, you can make a clamp for the DC bus,
[10:39:12] <SpeedEvil> Diode to motor in negative rail, emitter of NPN to motor-side of diode, base of NPN to other side of diode, power resistor to motor positive
[10:39:24] <SpeedEvil> small resistor across PSU to cope with base current
[10:40:31] <SpeedEvil> Motor (well, VFD) pushes current in, negative goes more negative than the input negative, emitter-base is forward biased and turns on hard, clamping the voltage through the resistor and dissipating energy till the voltage fals again
[10:40:55] <SpeedEvil> you could probably do the same with a relay if you were feeling silly
[10:43:04] <pcw_home> Better to use a comparator with hysteresis to drive the clamp device
[10:43:06] <pcw_home> ( you don't want the transistor to run in the linear mode, you want it to switch fast )
[10:44:49] <pcw_home> big switching transistors do not like to run in linear mode (they will die from secondary breakdown)
[10:45:26] <pcw_home> Also for low voltages MOSFETs are better clamps
[11:02:30] <SpeedEvil> pcw_home: yes - it wouldn't be running in the linear mode, because it's turned hard on by the voltage being several volts over the other rail
[11:03:27] <SpeedEvil> It only starts to turn off once the voltage approaches a volt - and that will be once most of the energy is dumped.
[11:03:31] <pcw_home> Needs a comparator
[11:03:41] <SpeedEvil> Disagree.
[11:03:51] <SpeedEvil> Would one improve it - yes
[11:03:55] <pcw_home> welcom to blown transistors
[11:03:57] <magnifikus> hmm is where a way to correct an not even table?
[11:04:22] <magnifikus> i got an old isel here where the portal is out 0,4mm along y-axis
[11:04:38] <magnifikus> and i cannot find anything to adjust it on the machine
[11:05:27] <pcw_home> You can get away with this with MOSFETS because they dont suffer from secondary breakdown
[11:05:27] <SpeedEvil> pcw_home: you need to design it so that the gain is high enough that the load-line of the resistor has a much higher slope, so that the transistor has a much lower dynamic resistance than the resistor, and it's fine
[11:05:35] <archivist> magnifikus, machine it flat
[11:05:47] <magnifikus> hrrr
[11:05:58] <archivist> magnifikus, but first make sure its not the ways
[11:06:06] <SpeedEvil> Secondary breakdown is not an issue because it's never turned on significantly at high Vec
[11:06:23] <magnifikus> its pretty sure the linear unit under the machine
[11:06:30] <magnifikus> but isel is not giving out any information
[11:06:50] <pcw_home> Nope /been there/done that = blown clamps if its any significant amount of power
[11:06:52] <SpeedEvil> You absolutely can't do this with a normal shunt regulator.
[11:07:02] <SpeedEvil> If you configure it as a normal shunt regulator
[11:07:17] <SpeedEvil> It only works because the diode disconnects
[11:07:23] <pcw_home> cannot do that with bipolars and be reliable
[11:07:34] <archivist> magnifikus, which model so I can see a picture
[11:08:32] <pcw_home> for low power maybe but VFD clamps are very high peak power = NO linear mode for Bipolars/IGBTs
[11:08:32] <SpeedEvil> pcw_home: this is not the normal shunt regulator case, which will destroy bipolars due to secondary breakdown if you do this.
[11:09:00] <SpeedEvil> The bipolar is not in linear mode, it is switched hard on and most of the load is dumped in the resistor.
[11:09:02] <pcw_home> I've done it and learned...
[11:09:21] <Loetmichel> magnifikus: get a bigger hammer to "adjust" that ;-)
[11:09:26] <pcw_home> nope that is linear mode
[11:10:04] <archivist> magnifikus, add shims under/between parts of the machine to make it flat
[11:10:22] <SpeedEvil> pcw_home: how is hard-on linear mode?
[11:11:06] <magnifikus> sec uploading pics :=)
[11:11:50] <archivist> just looked at their website, file hammer :)
[11:13:16] <archivist> JT-Shop, where is my air flow meter, not seen it for years
[11:14:38] <Loetmichel> meh
[11:15:41] <Loetmichel> any tips on how to get a cheap workshop air compressor to be "water free" on the double? whithout buying a 5 times the compressor cost chilling unit?
[11:15:54] <Loetmichel> preferably with some easy to source items?
[11:16:28] <archivist> Loetmichel, or get the cheap traps to catch it
[11:16:48] <Loetmichel> maybe replacing the pipe from cylinder to tank with a looong copper pipe to cool the comressed air down and set a water trap at the tanks intake?
[11:17:26] <Loetmichel> i have to empty the tank twice a day atm. and get more than a liter of water out each time... its REALLY damp the last 2 weeks now... :-(
[11:17:48] <archivist> you can get automatic drains
[11:18:04] <magnifikus> archivist https://www.dropbox.com/s/d51dlpqm9fw04ya/2015-10-01%2017.45.25.jpg?dl=0
[11:18:12] <magnifikus> and https://www.dropbox.com/s/xtblxlcc4l9hcdd/2015-10-01%2017.45.45.jpg?dl=0
[11:18:24] <magnifikus> from left to right the y axis goes 0,5mm up
[11:18:24] <SpeedEvil> Loetmichel: are you caring abou thte automatic drain, or water free?
[11:18:35] <Loetmichel> they dont help that much, reason i get the water up the nozzle is that the whole tank gets up to 80°c when running more or less continously all day
[11:18:56] <Loetmichel> so someofthe water stays in the air until pressure is released at the nozzle
[11:18:59] <SpeedEvil> Loetmichel: you can add an intercooler loop
[11:19:12] <SpeedEvil> Loetmichel: this will also _dramatically_ increase your stored air volume.
[11:19:16] <Loetmichel> SpeedEvil: thats what i meant with "a loooong copper pipe"
[11:19:18] <SpeedEvil> ah
[11:19:27] <archivist> magnifikus, adjust as needed
[11:19:29] * SpeedEvil ponders.
[11:19:42] <SpeedEvil> Is the thermal output of a compressor > the input power.
[11:19:49] <SpeedEvil> I suspect not very much.
[11:19:58] <magnifikus> so shims is the way togo
[11:20:11] <SpeedEvil> But that long copper pipe - designed to dump the heat may work well.
[11:20:28] <SpeedEvil> You will get water condensing out in that pipe, and could then dump much of the water before it gets into the tank
[11:20:41] <Loetmichel> yeah that was the idea
[11:20:47] <SpeedEvil> Are you OK with dumping water manually, or do you want it to be automatic?
[11:21:07] <Loetmichel> if the water trap has a visible tank it can be done manually
[11:21:15] <SpeedEvil> Actually - you could probably just do it with a timer that went on for a second every 5 minuts of run
[11:21:43] <Loetmichel> atm i get called twice a day "HEEEYY, the nozzle is slputtering water on the TFTs again! DO SOMETHING!"
[11:22:03] <SpeedEvil> The stupid suggestion is to teach the person what to do :)
[11:22:29] <SpeedEvil> The very stupid hacky solution is to arrange a small controlled leak in the drain valve.
[11:22:37] <Loetmichel> SpeedEvil: i dont trust them with a wrench near a 8 bar 50 l tank ;)
[11:22:55] <SpeedEvil> This is probably not reliable long-term due to rust issues though
[11:22:59] <archivist> magnifikus, you may find just moving the screw in the mounting hols of the bars gives you the adjustment
[11:24:04] <Loetmichel> i HATE it that i have to work with home tools at the company
[11:24:08] <justanotheruser> '/win 21
[11:24:34] <SpeedEvil> http://www.ebay.co.uk/itm/Pack-of-2-White-SodaStream-1-Litre-Carbonating-Bottles-BPA-Free-FREE-P-P-/252104572748?hash=item3ab29a7f4c
[11:24:35] <Loetmichel> this cheap air compressor simply isnt up to the job of running 8 hours a day with little stops.
[11:24:42] <SpeedEvil> Nice transparent high-pressure reservoir.
[11:24:50] <SpeedEvil> (low temperature)
[11:24:58] <Loetmichel> it got SO hot that the plastic wool in the air intake muffler has molten to the cylinder head ;)
[11:25:00] <SpeedEvil> Actually - I don't know if that is OK with oil.
[11:25:20] <SpeedEvil> you want to drain the water, and pour it over the cylinder head
[11:25:28] <SpeedEvil> Actually.
[11:25:38] <SpeedEvil> Even just paid for on the electricity savings.
[11:25:46] <SpeedEvil> A proper compressor may payback _fast_
[11:25:47] <Loetmichel> to get humidity up EVEN MORE?
[11:26:13] <SpeedEvil> Decent two stage compressor will be quieter, more efficient.
[11:26:39] <SpeedEvil> 1000W savings * 8h can easily pay for itself quite rapidly
[11:27:00] <Loetmichel> SpeedEvil: tell that to my bosses wive. (accountant)... i had to moand 3 jears to get the 2keur to buy a Chinese CNC 6040 for the company
[11:27:13] <Loetmichel> -d
[11:27:17] <SpeedEvil> This one is easy for accountants.
[11:27:49] <SpeedEvil> New compressor costs $. Over the next year, new compressor will save you >$
[11:28:01] <Loetmichel> she will not be interested
[11:28:10] <SpeedEvil> Rather than arbitrary 'this is better'
[11:28:25] <Loetmichel> company is already sold to 01/01/2016
[11:28:29] <SpeedEvil> ah
[11:28:37] <Loetmichel> so she really dont care about what comes after that
[11:28:43] <SpeedEvil> Drill a small hole in the drain plug, and it's all good then
[11:30:03] <Loetmichel> <- is already searching for a new job. because of "dont like the new companys behaviour" and suspicion that bosses wife will tell them shit about the workers
[11:30:37] <SpeedEvil> Also, if you're working around it, or responsible for it if it explodes, and it's a consumer compressor, stick some bags of sand around it to contain a tank burst.
[11:30:54] <SpeedEvil> ^partially
[11:31:23] <Loetmichel> she tried tha last three years to get the few of us left to quit so she can liquidate the company against the bosses whishes.
[11:31:43] <Loetmichel> SpeedEvil: the compressor sits about 2 feet from MY feet
[11:31:53] <SpeedEvil> yeah. I'd be buying my own sand.
[11:31:54] <Loetmichel> i would not like it to explode at all ;)
[11:32:07] <SpeedEvil> And/or letting them borrow my nice compressor.
[11:33:26] <Loetmichel> its one of these (or similar) http://www.ebay.de/itm/APEX-fahrbarer-Druckluft-Kompressor-Kessel-230-V-Druckluftkompressor-2PS-/201245443759
[11:33:32] <Loetmichel> and not THAT old
[11:33:39] <Loetmichel> maybe 5 or 6 years
[11:34:15] <Loetmichel> so i dont think the tank will explode anytime soon
[11:34:21] <Loetmichel> also it doesent has much rust
[11:34:31] <Loetmichel> the water i get out of it is nearly clear ;)
[11:35:18] <Loetmichel> i could crank up the spwitch to 14 bar and let it sit outside for a charge or two, tho ;)
[11:35:34] <Loetmichel> to get that concern out of my head
[11:35:42] <Loetmichel> thanks for that btw :-(
[11:37:06] <ganzuul> I want to build an articulated arm for my monitor. :)
[11:38:23] <ganzuul> 3 joints... maybe.
[11:38:35] <ganzuul> And a swivel base.
[11:39:23] <Loetmichel> build a full robot arm
[11:39:26] <Loetmichel> much more fun ;)
[11:39:48] <ganzuul> This would be a step in that direction!
[11:40:14] <ganzuul> Springs to balance weight.
[11:40:25] <ganzuul> A little rigidity, and low weight.
[11:40:55] <ganzuul> And a decent form & finish.
[11:41:02] <Loetmichel> dont use springs
[11:41:08] <Loetmichel> use gas lifts
[11:41:11] <ganzuul> hmm
[11:41:14] <Loetmichel> much more linear
[11:41:20] <ganzuul> aah
[11:41:23] <ganzuul> okay!
[11:41:55] <ganzuul> And no need for conter-lever.
[11:42:09] <Loetmichel> and if you get one with a car tyre valve you cvan even "adjust" its force
[11:43:48] <SpeedEvil> Loetmichel: 5 or 6 years from a consumer compressor never intended for 8/7 service.
[11:45:32] * JT-Shop wonders how long toner low is just a ploy to get me to toss out the toner cartridge with toner still in it?
[11:46:49] <Jymmm> IF it's HP, get the hack chip off ebay for it.
[11:47:39] <JT-Shop> brother
[11:50:40] <enleth> JT-Shop: you can get the chips for those too
[11:50:51] <JT-Shop> what do the chips do?
[11:51:46] <pcw_home> My HP just complains, it doesn't stop printing
[11:51:46] <enleth> JT-Shop: they always report full cartridge or something similar if the printer is able to suspect a non-original cartridge
[11:52:16] <enleth> JT-Shop: like, reporting as a new cartridge on every power up
[11:52:33] <enleth> with a new random serial number
[11:52:37] <renesis> ink cart emulator?
[11:52:43] <renesis> heh
[11:53:26] <enleth> JT-Shop: anyhow, replace the chip with alone like that and buy the toner in bottles
[11:53:30] * Tom_itx wonders who's buyin lunch today..
[11:53:38] <enleth> just refill outside and upwind
[11:54:02] <Tom_itx> yeah i used to get bulk toner from some place in NY
[11:54:03] <enleth> *with a one like
[11:54:33] <Tom_itx> used em until the drums went bad
[11:55:03] <enleth> but drums have 10-30k pages life expectancy
[11:55:17] <enleth> and you can replace those too
[11:55:20] <Tom_itx> not if they're scratched
[11:55:36] <Tom_itx> hardly worth repair at that point
[11:55:48] <enleth> well, don't scratch them, duh
[11:55:51] <Tom_itx> i used to get empties free from a couple offices around here
[11:55:58] * JT-Shop grabs a pistol and walks down to the mail box... might be eating Chinese if the white dog is around
[11:56:14] <Tom_itx> JT-Shop, just take it some treats
[11:56:19] <Tom_itx> like your leg...
[11:56:29] <enleth> also, some printers have separate drum cartridges and toner cardridges
[11:57:02] <enleth> those are the best to have around for cheap printing
[12:02:09] <JT-Shop> it's usually not out but you never know
[12:02:40] <Tom_itx> feed it a dog treat now n then and make friends with it
[12:04:29] <enleth> Tom_itx: yeah, it will start defending his porch from those nasty mailmen
[12:05:19] <Tom_itx> i'd imagine they have rural boxes by the road where jt lives
[12:07:10] <Tom_itx> you know... the kind kids drive by and knock down with bats
[12:11:19] <ganzuul> Even low-end industrial robots are expensive... man. 46k USD for a UR10.
[12:11:47] <Jymmm> JT-Shop: Stun gun built into a walking stick =)
[12:11:55] <fenn> $700 for some kuka with no control on ebay
[12:11:55] <Tom_itx> ganzuul, get a used one
[12:12:43] <fenn> i've seen quite a few hackers with used robot arms, but none of them actually using one for anything useful
[12:13:37] <t12> bot and dolly
[12:13:40] <t12> they did something useful with one
[12:13:45] <t12> cashed out to google for 200m+
[12:13:52] <fenn> that was a company, not a hobby
[12:14:15] <t12> it was effectively a hobby at the beginning
[12:14:28] <t12> they bought some scrap fanuc machines and strapped cameras to them and used them as props before they could get the control right
[12:14:45] <fenn> props?
[12:14:55] <t12> they were a commercial video studio
[12:14:58] <t12> ads and such
[12:15:01] <ganzuul> Tom_itx: No! I'm gonna build one!
[12:15:08] <ganzuul> Well, an arm without servos.
[12:15:17] <fenn> like, the actual camera work was being done by cartesian actuators?
[12:15:18] <ganzuul> I think aluminium tubing is the best way to do it.
[12:15:21] <t12> orig it was called autofuss
[12:15:57] <fenn> ganzuul: http://youtu.be/sEzIpxbp-xI
[12:16:11] <t12> https://vimeo.com/2308616
[12:16:16] <t12> they did a good job at the video part
[12:16:33] <t12> they developed it because when doing product shoots
[12:16:36] <ganzuul> Though a Kuka robot to hold my monitor would be kinda hilarious...
[12:16:46] <t12> little dusts and such fuck your shoot up
[12:17:12] <t12> and so you can program your camera path in maya or something
[12:17:18] <t12> instead of trying 10 times to get the curves right by hand
[12:17:29] <t12> https://www.youtube.com/watch?v=jDxRTEi5soM
[12:17:55] <ganzuul> Maybe load sensors for control... So you push on the monitor and the robot gives away.
[12:18:02] <t12> but really, it was a creative video shop playing with some robots
[12:18:08] <t12> and somehow someone turned that into a goog buyout
[12:19:18] <fenn> i like the idea of a tensegrity robot arm where all the actuation is done by changing the length of the tensile elements
[12:19:35] <fenn> but control would be pretty complex
[12:22:43] <ganzuul> That cable pulley thing looks interesting. Might be able to get simpler or more elegant balance.
[12:24:23] <ganzuul> Like placing all the gas springs in the base..
[12:25:56] <malcom2073> I totally need a reason for a robotic arm on a track, I have the space just not the reason heh
[12:26:19] <SpeedEvil> malcom2073: personal warehouse.
[12:26:25] <malcom2073> SpeedEvil: Meh, not fun :P
[12:26:39] <malcom2073> And I'd much prefer a robotic carousel
[12:29:48] <SpeedEvil> With horses?
[12:31:40] <fenn> http://www.shelfplus.com/wp-content/uploads/ips_carousel1.jpg "It is an automated solution that resembles a giant customized vending machine for your tools, parts, and/or inventory."
[12:32:05] <ganzuul> Robot horses... https://www.youtube.com/watch?v=OdPXskJBFl4
[12:33:58] <fenn> have you no shame
[12:35:55] <ganzuul> None.
[12:39:31] <SpeedEvil> http://imgur.com/gallery/Ou1A1P0 wind up pigs
[12:40:38] <ganzuul> *snarf*
[12:58:23] <ganzuul> https://www.youtube.com/watch?v=jKZIvseA1Nk
[12:58:27] <ganzuul> CS235: Applied Robot Design, Lecture 7-Introduction to Cable Transmissions
[12:59:05] <SpeedEvil> Loetmichel: http://imgur.com/gallery/hidiX33
[13:14:56] <malcom2073> Hmmmm storms a coming
[13:15:45] <archivist> sunny day, surely not
[13:19:04] <t12> l
[13:19:29] <furrywolf> dark gloomy cold weather here
[13:19:44] * furrywolf hates dark gloomy weather
[13:21:27] <furrywolf> http://humboldt.craigslist.org/ele/5247507099.html hrmm.... anyone want to fix a bunch of old receivers? :)
[13:23:41] <furrywolf> I'd jump on that if I didn't already have a large stack of my own needing fixing.
[13:24:11] <Jymmm> furrywolf: scrap em for parts?
[13:24:19] <Jymmm> lots of nice knobs on them
[13:25:06] <Jymmm> I'd suspect nice, CLEAN, power supplies in them too
[13:26:30] <furrywolf> I think you fail to understand that value.
[13:26:38] <furrywolf> the marantz there will fetch $350 working.
[13:26:52] <furrywolf> I know, I sold mine for that. :P
[13:27:01] <furrywolf> none of those is worth less than $100 working
[13:27:24] <Jymmm> Only to audio phreaks
[13:27:39] <furrywolf> fortunately ebay prevents you from having to deal with them in person. :)
[13:27:42] <Jymmm> ve7it: Yo, Mr L
[13:27:58] <ve7it> hey j
[13:28:14] <Jymmm> ve7it: Whats going on in your neck of the woods?
[13:28:44] <ve7it> well... too much fall gardening... I am getting too old
[13:28:53] <Jymmm> ve7it: hot house?
[13:31:51] * furrywolf is hungry, and wonders who has food
[13:32:05] * archivist hides his cheese
[13:33:51] <furrywolf> :(
[13:34:30] * Jymmm toss a baquet and some green meat at furrywolf
[13:35:08] <furrywolf> you're Jymmm, not SammmIammm.
[13:35:30] <Jymmm> furrywolf: Son Of Sam
[13:36:58] <ve7it> Jymmm, sorry... got a phone call.... just lots of trimming to keep things under control
[13:37:12] <furrywolf> there's lots of people around here trimming this time of year too.
[13:37:31] <Jymmm> furrywolf: OH NOES, a SCISSOR SHORTAGE =)
[13:37:53] <Jymmm> furrywolf: They better hurry up, rain is coming in
[13:37:59] <furrywolf> Jymmm: no scissor shortage... you know how stores have gum, candy, etc at the registers? a lot of stores here have scissors there too. :P
[13:38:13] <CaptHindsight> where is all this rainy bad weather?
[13:38:16] <Jymmm> furrywolf: by the cases =)
[13:38:22] <Jymmm> CaptHindsight: NorCal
[13:38:48] <fenn> heh ganzuul in that lecture video he says "cables are a huge pain in the ass, if you have a choice use a belt. only use cables as a last resort"
[13:38:51] <Jymmm> CaptHindsight: It's not "bad", just wet
[13:38:59] <CaptHindsight> we are getting out twice a year few weeks a year of nice weather
[13:39:54] <CaptHindsight> ~3 weeks in fall and again spring, otherwise is -10F and snow or 90's with 99% humidity
[13:39:55] * furrywolf realizes people not in norcal might have absolutely no idea what the scissors jokes were about
[13:40:05] <FinboySlick> furrywolf: I have a fisher very similar to that one.
[13:40:11] <FinboySlick> It drives my A7s.
[13:40:25] <Jymmm> FinboySlick: You mean fiskers ?
[13:40:38] <furrywolf> Jymmm: wrong conversation
[13:41:05] <Jymmm> ah
[13:41:24] <furrywolf> grrr. I emailed the person asking how much he wanted for the receivers, and got back "make an offer".
[13:41:28] <FinboySlick> furrywolf: It's a very clean amp.
[13:42:05] <CaptHindsight> Jymmm: did you get all your wiring done?
[13:42:10] <furrywolf> Most of those are very clean amps.
[13:42:41] <Jymmm> CaptHindsight: Not yet. Still need to get down the hill to get conduit/fittings.
[13:43:52] <Jymmm> CaptHindsight: Also delayed by wood stove / chimney sweeping =)
[13:44:11] <Jymmm> It's kinda creepy walking on a metal roof =)
[13:44:18] <CaptHindsight> ahh the smell of burnt timber
[13:44:51] <CaptHindsight> does this rain help at all with the forest fires?
[13:44:52] <Jymmm> CaptHindsight: Well, hopefully =) I've never used a wood heating stove, all new to me.
[13:45:07] <Jymmm> CaptHindsight: Oh sure,
[13:45:40] <ve7it> Jymmm, new wood stove?
[13:45:53] <Jymmm> CaptHindsight: http://cdfdata.fire.ca.gov/incidents/incidents_current
[13:46:08] <Jymmm> ve7it: New place, had stove in it
[13:46:39] <Jymmm> ve7it: This one http://www.homedepot.com/p/US-Stove-2-000-sq-ft-EPA-Certified-Wood-Burning-Stove-2000/202815104?keyword=us+stove+2000
[13:46:39] <CaptHindsight> Jymmm: did you figure out the transition from flex to rigid conduit?
[13:46:48] <ve7it> cool.... we burn wood here... just burn the dry stuff and chimney will stay clean
[13:47:04] <FinboySlick> furrywolf: Mine has a preamp-amp bridge, so you can bypass everything and just use it as an amp.
[13:47:14] <Jymmm> CaptHindsight: Yeah, a cluster fuck of slip and threaded fittings. it'll do =)
[13:47:41] <ve7it> i like to keep wood at least 3 years before burning it.... or at least 2 summers for drying
[13:47:47] <furrywolf> Most of those have preamp in/outs. :)
[13:48:15] <Jymmm> ve7it: Yeah, I have a couple fo cords of VERY seasoned wood, but I need to get some tarps to cover it
[13:48:50] <Jymmm> ve7it: What sucks, is there is oak, cedar, and pine, but I don't know which is which at a glance
[13:48:54] <ve7it> nothing like wood heat on a cool foggy morning
[13:49:57] <Jymmm> ve7it: As a test, I lit a log, but it smelled up the place when it smoldered a couple hours later
[13:50:31] <FinboySlick> CaptHindsight: Is memleak still looking for an encrypted voip solution? I started work on my mumble client.
[13:50:33] <ve7it> just give it a whack with the axe and give it a smell test.... those 3 woods all have very distinctive odours
[13:51:08] <Jymmm> ve7it: "whack"? What you think, I'm the neighbor kid I paid to split it all =)
[13:51:55] <Jymmm> ve7it: I just gotta watch the used of pine, or at least mix it with hotter stuff.
[13:53:34] <Jymmm> CaptHindsight: There is a Firewatch tower that you can listen to on the radio to know where fires are currently. internet and cellphone coverage is sketchy up here =)
[14:06:23] <furrywolf> I offered the guy with the receivers $100. he replied very unpolitely that I was wasting his time, to paraphrase it a bit.
[14:07:32] <cradek> well to be fair, "make me an offer" was wasting your time
[14:08:03] <CaptHindsight> Dear Sir, Thank you for your offer but I must decline. You have incorrectly read my mind.
[14:08:09] <malcom2073> Lol yeah, nobody who puts make me an offer should be offended at an offer
[14:08:17] <kanzure> pesky mind readers
[14:08:41] <furrywolf> lol
[14:09:12] <malcom2073> It's like the ebay make me an offer, you get three tries, 50%, 75%, and 90% :P
[14:10:03] <cradek> I bet that fisher quad is as rare as it is useless
[14:10:26] <malcom2073> Anyone who actually posts that something they are selling is rare, knows it's worthless
[14:11:04] <furrywolf> it's worth a decent bit working.
[14:11:06] <fenn> http://www.stanford.edu/group/sailsbury_robotx/cgi-bin/salisbury_lab/?page_id=399 low inertia 6 DOF haptic system
[14:11:10] <cradek> well not worthless (I bet someone will pay real bucks for it), useless (there are no quad broadcasts)
[14:11:46] <furrywolf> quad LPs.
[14:12:03] <cradek> yeah, you could have a collection of all five ever made
[14:12:07] <fenn> i feel the laser cut plywood takes away from the robotic death spider aspect of it
[14:12:34] <fenn> should have claws to securely grip the patient's skull
[14:13:18] <CaptHindsight> hmm, find old quad vinyl and quad turntable, fabricate quad FM xmitter, and wallah, instant FCC violation
[14:13:28] <cradek> 8-track and reel-to-reel were the winning quadrophonic formats
[14:13:46] <cradek> I passed over a quad reel-to-reel player/recorder a few months ago
[14:13:54] <cradek> cool, but I'd just have to store it
[14:14:20] <furrywolf> I already have about ten amps in my "need to fix" pile...
[14:14:47] <CaptHindsight> you don't have a hall of obsolete hifi devices? :)
[14:15:28] <furrywolf> two pioneer sx-828s, a pioneer sx-1010, two kenwood l-07ms, a sansui quad, a marantz 2238b (same as the one in that ad), a marantz preamp, a fisher with a blown stk, and several I'm not remembering right now. lol
[14:16:06] <furrywolf> the l-07ms are probably the first ones that I'll get fixed... 150W RMS of nice clean power.
[14:16:43] <furrywolf> clean from DC to 600khz. just in case you ever want to use them to broadcast AM radio.
[14:16:47] <t12> i inhereted a nakamichi pa-7 and some kef ref speakers
[14:16:51] <t12> its a funny amp
[14:17:16] <furrywolf> (yes, the 3db cutoff is 600khz. because kenwood could.)
[14:17:43] <Jymmm> CaptHindsight: Only ting I havne't figure out is how to tranisiton into the garage thru an exterior wall. I was going to use an elbow (with screw cover), but weather sealign with just silicone just doesn't seem right.
[14:17:47] <CaptHindsight> furrywolf: how far do you go to restore them? The caps decompose, pots, solder, copper etc oxidize,
[14:18:12] <furrywolf> did I ever use the word "restore"? I believe I said "fix" :P
[14:18:28] <CaptHindsight> fair enough
[14:19:01] <furrywolf> identify issue, repair.
[14:19:41] <CaptHindsight> Jymmm: an outdoor rated box will have a cover with gasket
[14:20:19] <Jymmm> CaptHindsight: you mean a single gang outdoor box mounted to the wall?
[14:20:37] <furrywolf> one of the sx-828s has a dc bias issue, looks like a problem in the bias voltage regulator, but that's as far as I got troubleshooting it. the other had no observable problems, but the protection relay circuit won't switch the speaker outputs on. the marantz kept taking longer and longer to turn on until one day it didn't. one of the l-07ms blows the control fuse, the other the main line fuse. sansui quad distorts on two channels. I think they're di
[14:20:49] <CaptHindsight> Jymmm: yes, or use a LB type fitting
[14:20:54] <Jymmm> CaptHindsight: I meant THRU the wall, to the eventual sub panel.
[14:21:00] * Jymmm googles...
[14:21:41] <CaptHindsight> http://www.diychatroom.com/attachments/f18/52994d1340625899-underground-run-outlet-pool-lb-fitting-out-siding-conduit_entrance.jpg
[14:21:42] <furrywolf> the sx-1010 is missing an output pair.
[14:22:19] <CaptHindsight> LB, LR, LF they are all L's, you just have to specify back, right, left etc
[14:22:24] <Jymmm> CaptHindsight: Yep, that's what I have. But how to you seal it (the wall) from water/weather?
[14:22:28] <furrywolf> got it from an estate sale... popped it open, and the output trannies are gone. guessing they were blown, and it was a repair started but not finished.
[14:22:57] <CaptHindsight> Jymmm: silicone, outdoor 20 year stuff
[14:23:02] <Jymmm> ah
[14:23:49] <furrywolf> the 1010 is a nice amp... well over 100W/channel RMS.
[14:24:15] <furrywolf> it's rated for 100W/channel, but pioneer usually underrated that part of the sx range by at least 50%.
[14:24:50] <furrywolf> one of these days I want a sx-1980. :P
[14:25:44] <furrywolf> http://www.ebay.com/itm/Pioneer-SX-1980-AM-FM-Stereo-Receiver-/131612051922 did I mention these receivers go for real money?
[14:28:18] <furrywolf> http://www.ebay.com/itm/Pioneer-SX-1980-No-Reserve-The-Holy-Grail-monster-Receivers-Great-Shape-/221890940961 that price is just scary.
[14:32:22] <furrywolf> I can't imagine spending over a quarter of my anual income on an amp. ANY amp.
[14:33:19] <ganzuul> Could maybe drill really tiny holes with this? http://www.ebay.com/itm/Coherent-FAP800-12W-Diode-Fiber-Array-Laser-Package-FAP-/401001283916
[14:34:24] <CaptHindsight> as kids we used to dumpster dive behind the Sherwood factory for parts
[14:36:24] <CaptHindsight> you don't think of saving parts or receivers at the time
[14:37:22] <furrywolf> heh
[14:37:33] <furrywolf> I tossed a calculator that'd be worth several thousand now.
[14:41:48] <furrywolf> meh. I hate dark gloomy days. they make me tired and useless.
[14:42:25] <CaptHindsight> http://www.americanradiohistory.com/Audio-Magazine.htm they have issues scanned into pdf from as far back as 1947
[14:43:37] <ganzuul> Oh blah... 0.81mm beam diameter. Not impressed.
[14:43:52] <furrywolf> I need to change the fuel pump on my subaru, but that takes energy. Yesterday I went to leave the hardware store, and car wouldn't start. Quickly noticed the sound of the high pressure fuel pump was missing, and just the low pressure pump was running. Thwapped it with a hammer, came back to life... then went to the auto parts store and bought a new USA-made pump to replace the chinese pump I used the first time.
[14:43:53] <Jymmm> Sams Facts!
[14:45:33] <furrywolf> spent $90 on the new pump. the chinese one was $14. but the chinese one only lasted around a thousand miles.
[14:45:45] <furrywolf> I hate china.
[14:56:38] <furrywolf> ok.... the guy I got the ultracap module from needs a new scale.
[14:56:42] <furrywolf> it is NOT 17lbs.
[14:56:48] <furrywolf> it's closer to 35.
[14:56:48] <furrywolf> lol
[14:57:54] <ganzuul> China seems to be a great source of near-net shape parts. Usually.
[14:59:06] <furrywolf> lol
[14:59:32] <MrSunshine> furrywolf: 17kg ?
[15:01:18] <furrywolf> yes
[15:01:57] <Tom_itx> Jymmm find some hedgewood to burn
[15:02:10] <furrywolf> should I test if it's charged with a meter or a screwdriver? :)
[15:02:39] <Tom_itx> it's hard as nails but pops a little
[15:02:48] <furrywolf> blah, 0.8V. screwdriver wouldn't have done anything.
[15:03:26] <PetefromTn_> jeez man big surprise Furrywolf is bitching about something again!! ;)
[15:03:43] <malcom2073> lol
[15:03:55] <malcom2073> furrywolf: Pull a Wolf_ and just drop a metal bowl on it
[15:03:56] <malcom2073> ;)
[15:04:59] <Tom_itx> PetefromTn_ well zeeshan|2 isn't here to cry about production jobs now so ...
[15:06:06] <PetefromTn_> Tom_itx It's a big crying game in here then so is it?
[15:06:36] <PetefromTn_> I got to machine out some hardened studs in a turbo manifold for a guy at work tonight as well as get some more parts made.
[15:06:46] <PetefromTn_> right now watching this mess in Oregon.
[15:06:54] <Tom_itx> oregon?
[15:06:59] <Tom_itx> fires?
[15:07:10] <PetefromTn_> school shooting
[15:07:11] <Tom_itx> haven't had the tv on in a couple days...
[15:08:50] <furrywolf> this thing stores a scary amount of power.
[15:09:59] <furrywolf> I'm charging it off 12V through a car foglight and the light is still going full brightness.
[15:11:07] <furrywolf> 18 2600F capacitors...
[15:11:30] <furrywolf> I should charge it to a higher voltage, but I don't have any convienient charging resistors.
[15:12:01] <ganzuul> Why am I reading research papers on mid-IR fiber optics when I am supposed to be designing a cable-powered articulated arm...?
[15:12:17] <furrywolf> it's rated for something like 1900A continuous, with a ~10kA short-circuit current.
[15:12:51] <furrywolf> because you want to use the losses of the optic fibers as bend sensors for the joints.
[15:13:05] <ganzuul> ooh
[15:13:07] <ganzuul> hmm
[15:14:18] <ganzuul> Like nerves.
[15:14:39] <ganzuul> Mid-IR is important for spectroscopy too.
[15:14:47] <furrywolf> I seem to recall one of the video game companies making a 3d glove that used fiber optic cables like that.
[15:15:33] <ganzuul> Might keep the part count down.
[15:16:11] <furrywolf> random question: what is the maximum voltage difference that would be acceptable to allow when tossing an ultracap bank across a battery bank? 1V?
[15:16:52] <ganzuul> Battery bank has the higher internal resistance.
[15:17:07] <furrywolf> yes. the capacitor bank has very close to nil.
[15:17:19] <furrywolf> as the 10kA short-circuit rating would suggest. :)
[15:17:32] <ganzuul> :o
[15:18:13] <furrywolf> I'd experiment with making wires cease existing if it weren't that it was quite expensive and I don't want to risk damaging it. heh.
[15:19:07] <ganzuul> Aluminium has a higher electric conductivity per unit weight compared to copper... Probably cheaper too.
[15:19:42] <ganzuul> No idea why we don't just make electric motors very long...
[15:21:50] <ffurrywol> <furrywolf> I'd experiment with making wires cease existing if it weren't that it was quite expensive and I don't want to risk damaging it. heh.
[15:21:50] <ffurrywol> <furrywolf> http://www.ebay.com/itm/221887154520
[15:21:54] <ffurrywol> <furrywolf> I could also just put a differential voltmeter across the switch, rather than my original plan of designing a fancy comparator circuit with ok/notok leds.
[15:25:42] <furrywolf> or I could just get two $2 chinese panel meters and compare them mentally...
[15:27:30] <ganzuul> What happens when there is a power surge?
[15:27:36] <furrywolf> ?
[15:27:58] <ganzuul> Does the cap bank dump power and immediately load the batteries?
[15:28:31] <Tom_itx> does solidworks have a 'curved path' option for extrusions?
[15:28:38] <furrywolf> I got it to provide momentary surge loads that cause the battery voltage to sag.
[15:28:40] <furrywolf> like starting large motors
[15:28:58] <furrywolf> when there's a sudden load, the capacitor will provide most of it, then recharge off the batteries.
[15:29:53] <furrywolf> I'm going to use a 250A thermal-only breaker, which will protect the wiring while allowing a few seconds of very high current for load starting.
[15:30:39] <furrywolf> I have some fast-trip magnetic ones, but they seem like a worse idea.
[15:30:42] <ganzuul> What sort of motor?
[15:31:38] <ganzuul> ...And why do they need to get up to speed very quick?
[15:33:11] <furrywolf> air compressor, air conditioner, who the hell knows. whatever I plug into my inverter.
[15:33:22] <furrywolf> and because the inverter gets pissed off when the battery voltage sags too low.
[15:33:23] <ganzuul> 48V, 10kA... These things are bolted down hard, right?
[15:34:04] <furrywolf> lol
[15:34:18] <ganzuul> Big motors should be soft-started.
[15:35:12] <_methods> Tom_itx: you mean like a sweep?
[15:35:15] <furrywolf> guess what? they aren't. :P
[15:35:36] <furrywolf> single-phase capacitor-start motors are pretty much the exact opposite of soft-started.
[15:35:39] <Tom_itx> _methods, not exactly
[15:35:53] <ganzuul> oic
[15:35:54] <Tom_itx> rather follow a 'Z" curved path
[15:36:25] <_methods> not sure what you mean there, how is that diff from a sweep?
[15:36:32] <Tom_itx> maybe i'm thinking of revolve instead of sweep
[15:36:47] <_methods> with a sweep you have a profile and a path
[15:37:02] <Tom_itx> i've got an I beam drawn and i want it to follow a path
[15:37:07] <_methods> the path determines the shape of the extrude profile
[15:37:08] <Tom_itx> end view
[15:37:12] <Tom_itx> ok
[15:37:15] <Tom_itx> that must be it then
[15:37:15] <_methods> yeah i'd use a sweep
[15:37:21] <_methods> just make a 2nd sketch
[15:37:24] <Tom_itx> yeah
[15:37:27] <_methods> and put your path on that
[15:37:40] <Tom_itx> it's called curved path in catia
[15:37:42] <Tom_itx> :)
[15:37:45] <_methods> yeah
[15:37:57] <_methods> you need to have 2 separate sketches though
[15:38:04] <Tom_itx> oh?
[15:38:12] <_methods> well you might be able to do it from 1 sketch but i don't think so
[15:38:13] <Tom_itx> well yeah i suppose you would
[15:38:17] <Tom_itx> on separate planes
[15:38:22] <_methods> yeah
[15:38:27] <_methods> or even 3d
[15:38:37] <_methods> but the profile needs to be 2d i believe
[15:38:45] <_methods> but your path can be a 3d sketch
[15:38:50] <Tom_itx> which would be the active one when extruding?
[15:38:55] <ganzuul> furrywolf: Does the inverter have a buck-boost circuit?
[15:38:55] <_methods> you pick
[15:39:00] <_methods> there will be 2 boxes
[15:39:02] <Tom_itx> does it matter?
[15:39:04] <Tom_itx> ok
[15:39:07] <_methods> 1 for path and one for profile
[15:39:09] <Tom_itx> i'll mess with it later on
[15:39:15] <Tom_itx> yeah
[15:39:23] <_methods> yeah sweep is good for simple paths
[15:39:26] <Tom_itx> makes sense but i haven't looked at it yet so...
[15:39:33] <_methods> if it's complicated you'll have to use loft probably
[15:39:38] <Praesmeodymium> ak walmart is crazy
[15:39:40] <Tom_itx> it's not
[15:39:42] <Praesmeodymium> http://www.walmart.com/ip/Nema23-CNC-Router-Robot-Stepping-Stepper-Motor-76mm-3A-255oz.in-w-Driver/46952097
[15:39:44] <Tom_itx> i know about loft
[15:39:49] <furrywolf> ganzuul: I don't know what the exact topology of the inverter is. I'm using it, not designing it.
[15:39:56] <Tom_itx> can you drop a pattern on a surface as well?
[15:40:05] <Tom_itx> or would that be considered loft?
[15:40:11] <furrywolf> It's a pair of outback gvfx3524s if you want to try getting a schematic from them and figuring it out. :P
[15:40:15] <_methods> well project a pattern?
[15:40:19] <Tom_itx> yeah
[15:40:30] <_methods> you can use project pattern i believe
[15:40:51] <Tom_itx> picture a grid looking straight on it would appear square but at the side it would be skewed
[15:40:51] <ganzuul> Buck-boost things are cheap, OtS stuff. Might take care of your voltage difference issue for you.
[15:41:19] <Tom_itx> i'll fiddle with it..
[15:41:20] <Tom_itx> thanks
[15:41:30] <furrywolf> ganzuul: if you can find me a cheap off-the-shelf buck-boost circuit that can handle 1000A at 24V, please let me know.
[15:41:39] <Tom_itx> i've done all those in smartcam but not in sw yet
[15:41:59] <Tom_itx> i figure any cad worth it's salt will have all the options...
[15:42:07] <Tom_itx> just a matter of finding them
[15:42:14] <_methods> ah to project a patter on a surface you have to do some crazy stuff
[15:42:23] <_methods> s/patter/pattern
[15:42:28] <Tom_itx> really?
[15:42:31] <_methods> yeah
[15:42:45] <ganzuul> furrywolf: http://www.aliexpress.com/item/48V-1000W-MPPT-Wind-Solar-Hybrid-Charge-Controller-Wind-Turbine-Controller-Boost-Buck-1KW-wind-1/32436250451.html?spm=2114.01020208.3.2.9bca7r&ws_ab_test=201556_2,201527_3_71_72_73_74_75,0_0
[15:42:58] <Tom_itx> all i do in smartcam is draw the pattern on a layer and project it down to the surface
[15:43:13] <furrywolf> 1kW << 25kW.
[15:43:23] <Tom_itx> not something i really need now though
[15:43:24] <_methods> ok project sketch on to surface yes
[15:43:33] <furrywolf> also, chinese 1kW << 1kW.
[15:43:36] <Tom_itx> that's what i meant
[15:43:46] <_methods> ahh yeah just use project sketch
[15:43:54] <Tom_itx> gotta run for a bit
[15:43:56] <_methods> but a pattern of features is a bit more involved
[15:43:58] <furrywolf> ganzuul: I think you're not quite grasping the scale of the components here.
[15:44:18] <Tom_itx> like drawing a golf ball?
[15:44:31] <Tom_itx> i bet that would suck
[15:44:39] <_methods> that might not be too bad
[15:44:39] <ganzuul> ...You're really using 24kW?
[15:44:49] <Tom_itx> anyway.. bbl
[15:44:51] <_methods> it would be a circular array
[15:44:55] <furrywolf> ganzuul: the inverter has a 500A breaker, which is just enough for its continuous output.
[15:44:55] <_methods> kk
[15:45:41] <furrywolf> ganzuul: the inverter puts out 7.2kW continuous, something like 8kW for 30 mins, 10kW for 30 seconds, and ???kW for a few seconds to start large loads.
[15:46:17] <furrywolf> actually, 7kW even, my bad.
[15:46:27] <furrywolf> bbl
[15:46:39] <ganzuul> Can you solder?
[15:46:58] <furrywolf> it's wired with 4/0 wire, which is about an inch thick.
[15:47:00] <furrywolf> bbl
[15:54:40] <CaptHindsight> how much would you pay for a 10oz can of pressurized dry air?
[15:55:14] <CaptHindsight> http://www.fibreglast.com/product/dry-gas-blanket-2332/Polyester_Resins $19.95
[15:55:14] <XXCoder> maybe a buck or 2
[15:55:23] <XXCoder> I'd get refillable one
[15:57:02] <Jymmm> $22 for 40cf =)
[15:57:57] <CaptHindsight> bottled dry air hhmmm
[15:58:11] <Jymmm> CaptHindsight: That's how I seal 5gal buckets =)
[15:58:49] <XXCoder> elio prototype engine http://www.eliomotors.com/wp-content/uploads/2015/09/engine6.jpg
[15:59:11] <CaptHindsight> Jymmm: whats in them? and do you use air or nitrogen or argon
[15:59:39] <Jymmm> I just have a 2ft tube that "sits" on the bottom of the bucket. Regulator set to like 10psi, fill bucket and slowly remove tube.
[15:59:47] <Jymmm> CaptHindsight: Nitrogen
[16:00:42] <Jymmm> To make sure the bucket is "full" I just move a long lighter in the bucket, if the flame goes out, it's full =)
[16:02:18] <Jymmm> CaptHindsight: That can you linked to... it's R134a refrigerant sold in any autoparts store
[16:03:07] <CaptHindsight> heh, I didn't look at the MSDS
[16:03:51] <Jymmm> But I like Nitrogen, it's food safe, inert, and available everywhere
[16:04:14] <CaptHindsight> yeah, nitrogen makes sense for that
[16:04:34] <CaptHindsight> displace the O2
[16:04:37] <Jymmm> also can be used as a fire supressant
[16:05:39] <Jymmm> and to fill tires =)
[16:08:58] <Deejay> gn8
[16:14:20] <XXCoder> Jymmm: whats benefits of nitrogen in tires
[16:15:36] <Jymmm> XXCoder: "They say..." no water, plus no compressor needed, can carry with you, can inflate 120PSI easily unllike compressor,
[16:15:59] <Jymmm> XXCoder: (I don't have a compressor)
[16:16:29] <XXCoder> interestibng
[16:16:41] <XXCoder> jeez just found 10kw laser for 9 bucks on aliexpress.
[16:16:43] <CaptHindsight> more profit for the nitrogen car tire filler suppliers
[16:16:47] <XXCoder> who wanna bet its just 1kw
[16:17:09] <Jymmm> XXCoder: 10mW =)
[16:17:17] <XXCoder> apparently special sale as orginial is 98 bucks
[16:17:19] <CaptHindsight> XXCoder: and lasts for 1ms
[16:17:24] <XXCoder> ah yes it IS 10k mw
[16:17:35] <CaptHindsight> lol
[16:18:04] <XXCoder> http://www.aliexpress.com/store/product/High-Power-lazer-303-Laser-verde-532nm-Laser-Pen-Pointer-green-laser-100000mw-powered-instantly-burning/1707608_32386113862.html
[16:18:10] <Jymmm> CaptHindsight: The nitrogen works for me for multiple things, I just need a bigger tank
[16:18:39] <Jymmm> an 80 or 125cf would be nice
[16:19:23] <XXCoder> comes with safe key
[16:19:33] <XXCoder> not bad idea
[16:20:08] <XXCoder> lol one of uses picture would get one jailed in usa
[16:21:45] <Sync> I wonder which oem that is XXCoder
[16:22:28] <cradek> haha 10000mw
[16:22:34] <cradek> yeah I bet
[16:22:55] <XXCoder> cradek: there is 1 million mw lasers on aliexpress too
[16:23:03] <XXCoder> "Max output: 1000000mwburns matches ,black plastics and pop balloons"
[16:24:11] <cradek> > Note:In order to pass through customs,we write the output power is lower than the actual power
[16:24:14] <cradek> wow
[16:24:26] <XXCoder> yeah
[16:25:12] <chris_99> that seems amazingly cheap for that, wattage?
[16:25:29] <XXCoder> chris_99: 98 bucks to 9 bucks. its not moving stock I guess.
[16:25:40] <chris_99> mmm
[16:26:00] <chris_99> i'm kind of tempted, but i'd probably just end up blinding myself
[16:26:01] <Jymmm> Heh, there is a restriction on imprt of Lasers into the US by the FDA, unless they are "components", and not a "system"
[16:29:33] <Praesmeodymium> yeah speckle from high power lasers is no joke
[16:30:17] <XXCoder> I like how it comes with key lock so kids cant play with it
[16:30:48] <CaptHindsight> might be 10W into the LED, 532nm is probably %50 efficient
[16:31:45] <CaptHindsight> so maybe 3-5W of emitted 532nm, not bad for $9
[16:32:02] <Praesmeodymium> theres an instructablhurray first day of legal retail weed sales in my state
[16:32:10] <CaptHindsight> battery not included
[16:32:12] <Praesmeodymium> stupid client
[16:32:38] <Praesmeodymium> thers an instructable about a guy who did some serious eye damage with a small laser
[16:32:43] <Praesmeodymium> left it up as a warning
[16:39:14] <XXCoder> heh "it" is quite amonigous. you meant left damaged eye up as warning? ;)
[16:39:19] <XXCoder> anyway gonna go lol
[16:40:00] <Praesmeodymium> the instructable admitting to flash burning his retina, looks like laser point forums ahs plenty of examples with pics of blown retinas
[16:40:03] <Praesmeodymium> cya
[16:55:51] <[cube]> https://www.youtube.com/watch?v=uVbo7ycpkeI
[17:08:26] <Tom_itx> apparently nitrogen inflated tires don't vary in pressure as much
[17:08:48] <furrywolf> they claim that. I have my doubts.
[17:08:58] <Tom_itx> i haven't bothered to find out
[17:09:07] <furrywolf> people have been filling tires with air for the entire existance of the pneumatic tire...
[17:10:51] <furrywolf> their other feature is that, supposedly, oxygen leaks out faster than nitrogen. even IF that's true, and that's a big IF, this would result in mostly nitrogen being left in the tire anyway after it's topped up a couple times... :P
[17:11:18] <t12> https://www.youtube.com/watch?v=adFd0f7K46w
[17:15:58] <roycroft> that would be true, furrywolf, if the tire were perfectly sealed and the only gas egress would be through the rubber molecules themselves, which is a very minimal amount
[17:16:31] <furrywolf> if the tire isn't perfectly sealed, getting it refilled with nitrogen repeatedly would be time-consuming and expensive. :P
[17:16:53] <roycroft> i would put it to you that the vast majority of gas escape through vehicle tires (especially tubeless) is through openings that, although very small, are still orders of magnitude larger than the size of o2 and n2 molecules, and therefore graham's law would apply
[17:17:51] <roycroft> the facts are that n2 molecules, although having a higher molecular weight than o2, are actually smaller in size than o2 molecules
[17:18:29] <roycroft> and that the gaps between the polymer chains in rubber are close enough to the size of n2/o2 molecules that graham's law would not apply
[17:18:47] <roycroft> and therefore, more o2 would pass through the rubber than n2
[17:18:57] <furrywolf> I would put it to you that you won't find any study demonstrating a statistically (or at least economically) significant difference between air fill and n2 fill.
[17:19:12] <roycroft> i have a vehicle, though, that is fully inflated and has class c tires, so it's at 45psi
[17:19:17] <roycroft> and it's been sitting on jack stands for a decade
[17:19:20] <roycroft> and still holds 45psi
[17:19:32] <roycroft> that tells me that virtually no gas escapes through the rubber
[17:19:33] <furrywolf> yep. I've seen that plenty of times.
[17:19:44] <furrywolf> how about mobile homes >50 years old still with air in every tire? :P
[17:19:46] <roycroft> hence my assertion that most of the gas that escapes does so via other routes
[17:20:22] <furrywolf> they put them up on blocks when they're installed, and when they go scrap them many decades later, all the tires still have air... and no one's ever checked them.
[17:20:33] <roycroft> i'm not arguing the alleged benefits of n2 vs air in a tire
[17:20:52] <roycroft> personally, i think that's at least 90% a marketing gimmick
[17:21:07] <roycroft> i think that the tire industry has sold all the tire siping it can get away with
[17:21:18] <roycroft> and has moved on to some other snake oil money maker
[17:21:33] <roycroft> but that's beside the point
[17:21:37] <furrywolf> let's charge an extra $50 to make your tires lose 0.5% less air per year!
[17:21:54] <roycroft> all i'm addressing is this notion that if you keep filling with air and only the oxygen escapes you'll end up with almost pure nitrogen in the tires over time
[17:22:11] <roycroft> i claim that if you always fill your tires with air you'll end up with air in the tires over time
[17:22:15] <furrywolf> you might note that I quite clearly emphasized IF when making that statement.
[17:22:42] <furrywolf> in fact, I typed IF in capital letters, and said "and that's a big IF".
[17:22:54] <roycroft> i don't think i saw that
[17:23:05] <roycroft> nor did i infer that you are a believer in the nitrogen snake oil
[17:23:11] <furrywolf> <furrywolf> their other feature is that, supposedly, oxygen leaks out faster than nitrogen. even IF that's true, and that's a big IF, this would result in mostly nitrogen being left in the tire anyway after it's topped up a couple times... :P
[17:23:22] <roycroft> ok
[17:23:25] <roycroft> so i did read it
[17:23:30] <roycroft> and ignored the middle bits
[17:23:33] <furrywolf> lol
[17:23:40] <malcom2073> Or if you fill up at cheap gas stations, you'll wind up with mostly water in your tires
[17:23:41] <roycroft> which is fine, because that's not what i was addressing anyway
[17:24:04] <_methods> fluid balanced tires lol
[17:24:18] <roycroft> metal tires would never go flat
[17:24:27] <furrywolf> maybe I should have more explicitly stated "assuming the unproven hypothesis of oxygen leaking faster than nitrogen to be true, this would create the hypothetical situation that..."
[17:24:28] <roycroft> and they would last a long longer than rubber ones
[17:24:41] <roycroft> i think we're in agreement, furrywolf
[17:24:45] <furrywolf> trains have metal tires. flat spots is a major issue with them. maybe the whole tire isn't flat, but parts of it are. :P
[17:24:47] <malcom2073> Be a bit rougher on the suspension though
[17:25:03] <renesis> ha ya think?
[17:25:08] <roycroft> trains do have that issue, yes
[17:25:13] <_methods> train.......
[17:25:16] <renesis> trains dont have to turn
[17:25:18] <roycroft> particularly when they have to use a lot of sand for braking
[17:25:31] <t12> http://www.moreinspiration.com/image/original?file=36b70dea-7568-4538-be35-152628bb7417.jpg
[17:25:43] <roycroft> trains turn all the time
[17:25:50] <roycroft> they just don't have any control over how they turn
[17:25:53] <renesis> radius that big is not a turn
[17:26:05] <renesis> its like a half merge or something
[17:26:28] <malcom2073> t12: Those tires suck ass for ride smoothness heh
[17:26:59] <_methods> tank is a train with it's own railroad tracks
[17:27:19] <furrywolf> the Tweel is supposed to ride not entirely horribly.
[17:27:39] <malcom2073> There was a road train
[17:27:39] <_methods> you just have to turn your railroad tracks with the train hehe
[17:27:43] <renesis> the plastic spider hub thing is a tweel?
[17:27:44] <malcom2073> Laid down its own tracks and picked them up
[17:27:51] <renesis> those things look horrible for mud and ice
[17:28:15] <renesis> also prob cant use with standard brake hardware
[17:28:23] <malcom2073> https://en.wikipedia.org/wiki/Dreadnaught_wheel
[17:28:49] <malcom2073> There was a picture where they had those on a locomotive, can't find it though
[17:28:52] <furrywolf> malcom2073: there still are road trains.
[17:29:13] <furrywolf> .au likes hooking a few dozen trailers to one tractor for long straight hauls through the outback
[17:29:32] <malcom2073> Yeah I more mean the method of locomotion
[17:29:38] <malcom2073> Not the whole, linking tons of stuff together
[17:29:51] <t12> https://www.youtube.com/watch?v=Z_w_Wyxo1NI
[17:29:56] <t12> lets reinvent the wheel some more
[17:30:07] <roycroft> *whew*
[17:30:16] <roycroft> i just heard from my last friend who has a kid at umpqua cc
[17:30:18] <roycroft> his kid is ok
[17:30:21] <malcom2073> Yeah omniwheels are awesome
[17:30:25] <malcom2073> We had a forklift with those once
[17:30:31] <t12> there was a battlebots robot that had them
[17:31:07] <furrywolf> I want to make mattracks that are affordable and don't suck.
[17:31:14] <t12> https://www.youtube.com/watch?v=IlmKcohyXG0 lol
[17:32:42] <furrywolf> looks like my cap bank is stabilizing around 50ma at 13.8V... I'm assuming most of that is the power consumption of the balancing boards, although part of it is of course the cap's internal leakage.
[17:33:45] <malcom2073> That's a decent leakage
[17:34:11] <furrywolf> it has a non-trivial amount of electronics on it. in theory I can even monitor the pack status through the 4-pin plug on top.
[17:34:23] <furrywolf> I do not, however, have specs for said plug.
[17:35:18] <furrywolf> I found specs for a similar pack, and the 4-pin plug only provided temperature and a combined failure/overvoltage/etc alarm contact, which could well be all this one provides as well.
[17:35:52] <furrywolf> it has an electronic balancing system that bleeds off the highest-voltage capacitors
[17:37:53] <malcom2073> So whatcha using this for? Replacing your car battery with it?
[17:38:18] <furrywolf> no. it's way too large for that.
[17:38:26] <furrywolf> 18 2600F caps. :)
[17:39:01] <furrywolf> preventing voltage sags on my battery bank when starting heavy loads
[17:39:28] <furrywolf> for example, starting my air compressor makes my fully charged batteries, at 29.6V, become 18V...
[17:41:03] <furrywolf> http://i.ebayimg.com/00/s/MTIwMFgxNjAw/z/oUgAAOSwWnFV-MJt/$_57.JPG the balancing boards look like that apparantly
[17:43:46] <furrywolf> http://www.ebay.com/itm/2-7V-2600-E-Maxwell-BCAP-2600-Ultracapacitor-Boost-Cap-/221887117396 you can see a pack taken apart there... he even sawed open a capacitor, which is pretty impressively neatly done. :)
[17:43:52] <malcom2073> heh
[17:47:50] <malcom2073> Kinda cool to see the insides
[17:53:00] <furrywolf> he used a bandsaw... I probably would have ran one of my metal-cutting circular saw blades through it. much cleaner cut.
[17:54:00] <Contract_Pilot> Wow, walmart is showing the cheap stepper motors and drivers shipped. Amazing
[17:54:24] <malcom2073> You're shocked? It's no different than buying from sears third party sellers, or amazon third party sellers :P
[17:54:40] <Contract_Pilot> the price was to good to be true.
[17:56:03] * furrywolf waits for Contract_Pilot to open the box and find his shiny new umbrella
[17:56:55] <Contract_Pilot> 4 Motors, 4 Drivers, 48V 10A and 12V 10A PSU, for 58.70 shipped!
[17:57:25] <furrywolf> I'm happy with my Centent US-made drives. they run cool with my 9A/phase steppers and 54V supply...
[17:57:29] <Contract_Pilot> Yea, or Air Freshners or a Brick.
[17:58:07] <furrywolf> microstepping... which I'll use more of when I get my mesa board.
[17:58:11] <Contract_Pilot> Well i am not going to use my 80V 10A drives on these sherline machines
[17:58:25] <furrywolf> if I use more microsteps I lose top speed with parport.
[17:58:39] <malcom2073> lol
[17:59:03] <furrywolf> 7i76e STILL out of stock. :(
[17:59:38] <Contract_Pilot> Yea, 7i76's are out.
[18:00:34] <Computer_barf> seems like a good time to chime in and mention i love mine
[18:01:43] * furrywolf looks for something to throw at Computer_barf
[18:02:14] <malcom2073> I know where a 7i76/5i25 is sitting totally unused..... but I doubt the guy would part with it heh
[18:03:09] <furrywolf> hrmm, things within reach are some 18650s, a 30lb ultracap bank, lots of paperwork, a magic wand g-spot attachment, my laptop, and my laser printer. the paperwork and 18650s are too light, the laptop, printer, and ultracaps too heavy... :P
[18:04:06] <malcom2073> haha
[18:04:44] <t12> dang theres a chinense v-belt standard
[18:06:18] <Contract_Pilot> Now what motor do i want to use on these sherline machines!
[18:06:28] <Contract_Pilot> Spindle Motor.
[18:07:10] <furrywolf> the one they came with?
[18:07:16] <malcom2073> Get one of those water cooled 2.2kw ones
[18:07:19] <furrywolf> I'm running my fog light off the cap bank now... been going about a minute, still nice and bright...
[18:08:38] <furrywolf> so, what should I work on tonight? I can fix generators, clean the house, make phone calls, or go take the subaru for a drive to burn the bad gas that's in it.
[18:09:11] <furrywolf> or change the fuel pump in the other subaru
[18:13:29] <t12> a little ac sevo?
[18:13:44] <t12> more debugging lathe problems
[18:13:55] <t12> everything is conical .0005"/1"
[18:14:01] <t12> beds pretty level
[18:14:21] <t12> aluminum finish always seems to come out very slightly dimpled
[18:15:11] <t12> figuring either spindle is a little loose, so redoing bearing preload
[18:15:33] <t12> or maybe something in the tool to bed stack is loose or weird but cant feel that so far
[18:15:36] <t12> guess i can indicate it
[18:15:55] <t12> or maybe since its a sheetmetal stand, the whole thing is warp wiggling a little
[18:18:57] <furrywolf> twisting the bed will do that.
[18:19:24] <furrywolf> put a good level on each end of the bed and compare
[18:19:55] <PetefromTn_> jeez man I got a work holding problem here...
[18:20:38] <furrywolf> vise grips.
[18:20:49] <PetefromTn_> meh not this time
[18:21:02] <malcom2073> Tig weld it down
[18:21:09] <PetefromTn_> a customer came into work today and brought in a turbo charger
[18:21:17] <PetefromTn_> they were working on it at home
[18:21:33] <Contract_Pilot> No markings on the motor to tell how many wats
[18:21:34] <PetefromTn_> and managed to break off two of the studs on the mount flange that hold the turbo on it.
[18:21:59] <PetefromTn_> so they asked us to try to machine the studs out and retap the mount
[18:22:07] <t12> its within half a div with a sterrett 98
[18:22:09] <PetefromTn_> but it is part of the turbo
[18:22:17] <PetefromTn_> and it is a REALLY funky shape
[18:22:28] <t12> which should be like .0025/ft
[18:22:35] <PetefromTn_> it is also taller than my kurt vise because of the roundish bits
[18:22:56] <PetefromTn_> and I need to get the flange face vertical to the spindle so I can drop a carbide endmill down thru there
[18:23:19] <t12> tackweld rod to the busted stud and turn that?
[18:23:20] <PetefromTn_> was looking at some sort of strap clamp setup but the edge of the flange is not very wide at all
[18:23:33] <PetefromTn_> they broke off flush
[18:23:39] <PetefromTn_> or slightly below
[18:23:41] <Tom_itx> we need pics
[18:23:46] <furrywolf> picture?
[18:23:52] <PetefromTn_> yeah I figured
[18:23:58] <PetefromTn_> hang on
[18:24:00] <Tom_itx> u figurd right
[18:24:04] <t12> how bigs the stud
[18:24:12] <Tom_itx> who pete?
[18:24:21] <Tom_itx> never asked him
[18:24:46] <Contract_Pilot> Wonder if i can use a treadmill motor or somthing.
[18:24:55] <Tom_itx> why not?
[18:25:15] <PetefromTn_> HUGE
[18:25:20] <Tom_itx> pfft
[18:25:22] <PetefromTn_> ;0
[18:25:34] * furrywolf isn't a stud, so isn't the who
[18:25:43] <Tom_itx> that's not what she said
[18:26:15] <Tom_itx> is it friday yet?
[18:26:27] <renesis> no it is not friday
[18:26:41] <PetefromTn_> Oh wait gotta eat dinner before I load the pics of wifey will not feed me LOL
[18:27:13] <jdh> you are loading pics of wifey? how does she feel about that?
[18:27:24] <Tom_itx> you caught that too?
[18:27:32] <malcom2073> lol
[18:50:28] <PetefromTn_> Okay guys sorry for the delay.....Oh and HAHAHAHAHAHAHAHAHA yeah right ;)
[18:50:39] <PetefromTn_> http://imgur.com/a/Kewi2 Here is the turbo housing..
[18:54:32] <PetefromTn_> its about 6 inches from the top of the flange to the bottom of the curved bit
[19:26:10] <MarkusBec> https://www.youtube.com/watch?v=hdTk2rC6f80&channel=gregmporter
[20:00:47] <t12> could mount to some bracket made of scrap with the other holes
[20:00:59] <t12> are they threaded in or part of the body somehow
[20:14:45] <PetefromTn_> okay so I managed to get the turbo body clamped down using a bunch of blocks and strap clamps etc.
[20:15:09] <PetefromTn_> I grabbed a trusty Yg1 coated carbide endmill and put it in an ER32 holder
[20:15:36] <PetefromTn_> lined it up as best as I could vertically and started to drop that endmill down thru the hardened steel stud.
[20:15:43] <PetefromTn_> cut it like butter LOL
[20:16:00] <PetefromTn_> and I then drilled it out to the hole diameter they requested
[20:16:13] <PetefromTn_> and just when I thought I had this thing sorted
[20:16:34] <PetefromTn_> I travel over to the other damn hole and realize it is JUST outside of my X axis travel DOH!~
[20:16:44] <malcom2073> Doh!
[20:17:15] <PetefromTn_> I should have realized it I guess but I was concentrating on the fixturing of the part so I did not pay enough attention to it.
[20:24:18] <renesis> great setup practice doing it again
[20:24:18] <t12> so gears in this lathe are a bit rattley
[20:24:34] <t12> they seem to be mostly bushing mounted
[20:24:40] <t12> then shims on each side of the bushing
[20:24:54] <t12> worth tightening all of these up
[20:25:10] <t12> which may require machining the shafts they sit on a bit
[20:33:00] <Roguish> ok, good day here. just cut my first keyway in a shaft. didn't even break anything, and the key and gear fit. woohoo.
[20:55:20] <Praesmeodymium> hmm, I'm guessing belts are good for 3d printers but not gonna be good enough for anything real
[20:55:37] <malcom2073> You can get by with belts depending on the application and the strengh/size of the belt
[20:55:52] <malcom2073> And the amount of precision required
[20:56:24] <Praesmeodymium> well i just stole some motors from walmart and am trying to figure out if I can afford to use them
[20:56:48] <Praesmeodymium> http://www.walmart.com/ip/Nema23-CNC-Router-Robot-Stepping-Stepper-Motor-76mm-3A-255oz.in-w-Driver/46952097
[20:58:50] <malcom2073> Someone else just got some of those, Contract_Pilot1 I think?
[20:59:15] <malcom2073> You could do a belt driven 1.5x3ft router, do wood alright
[21:00:13] <Praesmeodymium> would threaded rod be better or worse, wood is the goal.
[21:00:30] <malcom2073> Acme screw with an anti-backlash nut would be better
[21:00:42] <Praesmeodymium> I see threaded rod exampls but I dont like threaded rod in repraps
[21:01:01] <malcom2073> The big issue with threaded rods in reprap, is that the frames aren't sturdy enough, they rely on the rod for lateral stability
[21:01:04] <malcom2073> You shouldn't do that
[21:01:15] <malcom2073> If you avoid doing that, you can use a wobbly rod and be (mostly) ok
[21:01:37] <Praesmeodymium> for me the issue is its not designed for motion and so going fast and frictive loses are unaceptabe
[21:01:41] <Contract_Pilot1> Ahhh shooting in oregon time for sales to pickup.
[21:02:16] <malcom2073> What's not designed for motion? Your linear system?
[21:02:19] <malcom2073> Oh the screw
[21:02:31] <Contract_Pilot1> Awaiting shipment
[21:02:43] <malcom2073> Yeah acme rod is typically smoother threads,
[21:03:12] <Praesmeodymium> scary at least roseburg isnt close
[21:03:44] <Praesmeodymium> roseburg is still 1950 more or less
[21:06:30] <Praesmeodymium> as in the era, ok maybe 1964 with the racial tension but not the free love of the later 60's
[21:12:18] <t12> belts are pretty accurate if done right
[21:12:30] <t12> arent most big robot arms belt coupled internally
[21:14:51] <SpeedEvil> Can't you now get CF core belts?
[21:16:03] <malcom2073> You can get ones that are fairly accurate. Hell, my mill has belts going from the screws to the motors
[21:16:38] <Praesmeodymium> and this is why I asked
[21:16:45] <malcom2073> It uses the same belts the reprappes use, GT2
[21:16:48] <malcom2073> Just significantly larger
[21:17:44] <malcom2073> https://scontent.xx.fbcdn.net/hphotos-xpa1/t31.0-8/12028650_1143085655705814_5572230064951336056_o.jpg
[21:18:33] <SpeedEvil> Just because belts can be shit doesn't mean inherently that belts are shit
[21:18:59] <SpeedEvil> Carefully engineered, with attention paid to details, they can be great.
[21:19:08] <SpeedEvil> much like screws
[21:21:22] * Praesmeodymium hangs head in shame
[21:23:27] <malcom2073> Why?
[21:24:32] * Tom_itx wonders about PetefromTn_ sometimes
[21:27:11] <Praesmeodymium> newb questions I just need to read some more lol
[21:27:20] <pcw_home> big robots very often use harmonic drives
[21:32:03] <SpeedEvil> I wish harmonic drives were cheaper
[21:32:39] <SpeedEvil> 'yes certainly sir, we can do that, it will be eight million dollars per'
[21:34:03] <malcom2073> Eh, they come up on ebay cheap enough at random
[21:34:09] <malcom2073> Make good 4th axises
[21:38:33] <SpeedEvil> yeah - I mean if you actually want to be able to buy new
[21:38:43] <SpeedEvil> in a manner you can make >1 machine reliably
[21:38:55] <SpeedEvil> Not that ebay isn't awesome
[21:39:54] <malcom2073> Quite true
[21:40:17] <malcom2073> That's the only thing that has stopped me from getting into the small CNC router business. The ones we've made so far have had to be one offs because of having to buy used parts heh
[21:51:26] <Mac-phone> hey
[21:57:36] <PetefromTn_> Tom_itx ?
[22:11:07] <furrywolf> I definitely am a country wolfy... just went for a drive to use up some of the gas in the new subaru... it's sooooo nice to be able to drive three hours on main roads and see a total of three other vehicles.
[22:11:24] <trentster> malcom2073: is there even a point getting into small cnc business with the chinese stuff so cheap
[22:12:06] <trentster> even with just buying the machien without electronics and using own stuff like gecko etc works out significantly cheaper
[22:23:38] <furrywolf> http://humboldt.craigslist.org/zip/5248246134.html do I need more wheelchair motors?
[22:29:48] <SpeedEvil> furrywolf: you can never have enough wheelchair motors
[22:29:57] * SpeedEvil wishes he could get some.
[22:30:16] <SpeedEvil> Especially some of the awesome american wheelchairrs.
[22:30:31] <SpeedEvil> (the 'wide load' ones)
[22:32:38] <furrywolf> that's a bit of a drive, and I have a serious space shortage. heh.
[22:34:45] <SpeedEvil> Tunnel boring machine.
[22:34:53] <SpeedEvil> For which you need more wheelchair motors.
[22:35:26] <furrywolf> ?
[22:38:46] <SpeedEvil> To make more space
[22:38:59] <SpeedEvil> Or do you have a high water table.
[22:39:21] <Praesmeodymium> only when it rains
[22:39:52] <furrywolf> very high water table.
[22:40:05] <furrywolf> you don't build basements here, and you build septic systems on top of the ground instead of in it.
[22:40:47] <SpeedEvil> Solid ground, or is there problems with basements popping out of the ground if you tank the
[22:40:48] <SpeedEvil> m
[22:41:07] <furrywolf> a sealed basement is another word for boat...
[22:49:44] <Tom_itx> PetefromTn_, setting the part up out of range...
[22:50:23] <PetefromTn_> oh LOL
[22:50:31] <PetefromTn_> yeah that was a big brain fart
[22:50:36] <PetefromTn_> but I got the part done
[22:50:48] <Tom_itx> figured you would
[22:50:55] <PetefromTn_> once I fixtured it the machining went pretty easy
[22:51:05] <PetefromTn_> working on some rails now ;)
[22:51:07] <Tom_itx> i would have suggested blocking it up like you did
[22:51:28] <PetefromTn_> I need some recommendations for a good value priced facemill here
[22:51:35] <Tom_itx> done 25 parts in solidworks now
[22:51:48] <PetefromTn_> been looking at a few but have not decided or know of all options
[22:51:58] <Tom_itx> make one
[22:52:01] <Tom_itx> single point?
[22:52:04] <PetefromTn_> I really like solidworks
[22:52:05] <Tom_itx> or a shell mill?
[22:52:09] <PetefromTn_> wish I could afford it
[22:52:12] <Tom_itx> i like SW better than catia
[22:52:20] <PetefromTn_> multi flute face mill
[22:52:20] <Tom_itx> but catia is pretty nice
[22:52:42] <PetefromTn_> looked at the Glacern FM45 in a 3" diameter
[22:52:57] <PetefromTn_> but I would need the 1" arbor and their inserts too
[22:53:07] <PetefromTn_> price goes WAY up with all that
[22:53:07] <Tom_itx> we used valenite or sandvik usually
[22:53:18] <PetefromTn_> yeah those are crazy expensive
[22:53:36] <PetefromTn_> I would LOVE a Seco Octomill in 3:
[22:53:39] <PetefromTn_> "
[22:54:54] <Tom_itx> buy it once and buy it right
[22:55:41] <Tom_itx> i'm gettin pretty good at this SW.. not done any lofted surfaces yet though
[22:55:55] <PetefromTn_> https://www.youtube.com/watch?v=yI-ds_NYscE
[22:55:56] <Tom_itx> i should post a few i've done
[23:00:44] <PetefromTn_> post em
[23:08:39] <furrywolf> bbl, wolfy bedtime
[23:11:49] <LatheBuilderShop> PetefromTn_, i like high rake 45 degree facemills that use standard square inserts. beautiful surface finish, cheap to feed
[23:12:46] <Tom_itx> uploading..
[23:14:39] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/practice_drawings/
[23:16:13] <Tom_itx> keepin me occupied anyway..
[23:26:32] <Tom_itx> k, time to sleep.. nodding off in the chair
[23:59:54] <PetefromTn_> LatheBuilderShop Oh nice thanks for the info