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[02:22:54] <Deejay> moin
[05:40:44] <kengu> what kind of CAMs you use for router work?
[05:47:24] <jthornton> gedit
[05:53:04] <TekniQue> kengu: I quite like cambam
[05:53:33] <kengu> gedit is a bit hard. learning curve is steep
[05:54:34] <jthornton> but once you know then you know
[05:55:43] <jthornton> it really depends on what your making
[05:57:27] <jthornton> http://www.panix.com/~dgarrett/phpv2/02-Halftones/
[06:05:29] <kengu> jthornton: i was about to set up a CAM station at local hackerspace to use with router. so gedit might not be the way to go
[06:06:01] <TekniQue> cambam is easy to use
[06:06:07] <jdh> cut2d
[07:50:50] <ekacnet> hi all
[07:51:26] <ekacnet> what's the meaning of current-maxlim current-minlim and current-scalemax for a 8i20
[07:51:52] <ekacnet> I need to understand how the values should be set
[07:52:48] <ekacnet> I'm trying to avoid getting fried or frying my card
[08:05:06] <jdh> See the pdf documentation downloadable from Mesa for further details
[08:07:20] <ekacnet> where is the pdf ?
[08:07:33] <ekacnet> I must be stupid I haven't found the pdf
[08:07:51] <jdh> no clue.
[08:08:30] <jdh> I would have assumed the 8i20 pdf manual but that doesn't seem to be the case.
[08:11:19] <ekacnet> well there is a maxcurrent (not current-maxlim) and no current-minlim
[08:11:25] <ekacnet> nor current-scalemax
[08:12:20] <jdh> I think maxcurrent is really max current.
[08:12:35] <jdh> and these 3 are just for scaling
[08:13:53] <ekacnet> ok will wait until US wakes up
[08:15:31] <jdh> or .uk perhaps
[08:47:15] <pcw_home> The 8i20 hal pin names changed in 2.6 (to match other sserial devices)
[08:49:17] <pcw_home> so on 2.6.x and > scalemax sets the scaling (up to the EEPROM set limit which is 7.5A if not changed)
[08:54:10] <ekacnet> pcw_home: I'm sorry still not clear
[08:54:53] <ekacnet> so if in 2.6.x I set current-minlim to 2A it and current-maxlim to 3A it means that the current will flucuate between 2A and 3A
[08:54:56] <ekacnet> correct ?
[08:56:03] <pcw_home> its instructive to look at the default values of those parameters
[08:56:15] <ekacnet> where to look ?
[08:56:33] <ekacnet> on the motor specification ?
[08:56:43] <pcw_home> halcmd show param
[08:57:29] <pcw_home> scalemax sets the scaling. minlim and maxlim set bounds
[08:57:56] <ekacnet> scaling of which value ?
[08:58:22] <ekacnet> the pdf on mesa website mention a NVMAXCURRENT that is 30A by default
[08:58:38] <ekacnet> is the scaling applying to this value ?
[08:59:56] <ekacnet> pcw_home: also I understand that it's not optimal but I have a motor but don't know much about it
[09:00:31] <pcw_home> EEPROM default is 7.5A
[09:01:00] <pcw_home> scaling of the motor current
[09:01:22] <ekacnet> it's supposed to work at 220V and has ~3ohms as internal resistance
[09:02:19] <ekacnet> pcw_home: is there a formula somewhere like motor_current = ??? * current-scalemax + ???
[09:03:45] <pcw_home> if you dont change scalemax or the limits, motor current is in amps
[09:04:32] <ekacnet> and up to 7.5A (as set in the EEPROM) right ?
[09:04:45] <pcw_home> (up to 7.5 A max until you change the EEPROM setting = NVMAXCURRENT)
[09:06:46] <pcw_home> so if i changed scalemax (and the limits) to 100, 100,-100 now my scaling would be in % of 7.5A (100 = 7.5A)
[09:14:56] <ekacnet> pcw_home so the formula seems to be
[09:15:35] <ekacnet> motor_current = NVMAXCURRENT * (maxlim)/scale
[09:16:19] <ekacnet> motor_current = NVMAXCURRENT * (scale)/maxlim
[09:16:23] <pcw_home> no, maxlim is a limit not involved with scaling
[09:17:28] <ekacnet> so which are the limits that you mentioned ?
[09:17:32] <pcw_home> minlimit and maxlimit are bounds, only scalemax sets scaling
[09:51:18] <Jymm> 8TB HDD anyone?
[10:04:53] <jdh> I'll take 2, thanks.
[10:08:14] <Jymm> Only $270 each
[10:08:38] <jdh> cool. thanks for the xmas presents!
[10:09:56] <Jymm> Lets go for the 20 pack...
http://www.amazon.com/Seagate-ST8000AS0002-20PK-ARCHIVE-128MB-3-5IN/dp/B00QPMRIFM
[10:12:11] <Jymm> I"m still trying to figure out what the crypto version does differently
[10:16:24] <jdh> encrypts for data for your security and easy NSA decryption.
[10:17:03] <Jymm> It's the latter what I question. and reading the manual now
[10:17:42] <CaptHindsight> Jymm: crypto version of that hard drive?
[10:18:04] <Jymm> CaptHindsight: Yes...
http://www.seagate.com/products/enterprise-servers-storage/nearline-storage/archive-hdd/#specs
[10:18:42] <CaptHindsight> I would expect any manufacturer to be pressured out of existence if they offered actual crypto
[10:19:15] <Jymm> Just the opposite,
http://www.seagate.com/tech-insights/self-encrypting-drive-tech-tco-master-ti/
[10:19:41] <CaptHindsight> why I suspect it's the illusion of crypto
[10:20:02] <Jymm> shut up and let me read =)
[10:21:00] <jdh> you are just looking at the pics, aren't you.
[10:21:12] <CaptHindsight> I was on a N0-Drive-List last month. I thought I woke up and it was 1964 East Germany
[10:26:35] <Jymm> jdh: If there were any, yes.
[10:30:50] <Jymm> The crypto drives add an ASiC with RNG, uses AES-256 CBC, 32 byte keys, firmware update authentication, and to essencial wipe the drive you have to manually enter a key that is not electronically accessable
[10:31:43] <Jymm> I think the last part is slick.
[10:32:51] <Jymm> In theory, no hacker can desotry your data electronically, and MUST have physical access to the drive.
[10:33:08] <Jymm> ...to do so.
[10:37:33] <mozmck> CaptHindsight: No-Drive-List???
[10:39:12] <CaptHindsight> yeah , canceled my license and ID for a few weeks
[10:39:34] <Jymm> canceled?
[10:39:43] <CaptHindsight> they started doing this about a month ago
[10:39:44] <Jymm> as in have to take tests all over agian?
[10:40:00] <mozmck> heh, what for? non-PC thoughts?
[10:40:43] <CaptHindsight> no info, just a contact number at the Secretary of State, had to prove I was me, and I didn't count
[10:42:05] <CaptHindsight> whole families are getting canceled at the same time
[10:42:17] <CaptHindsight> it hasn't made the news yet
[10:42:45] <CaptHindsight> I did find a couple website where people were starting to complain about their situation
[10:43:17] <Jymm> Huh?
[10:43:19] <jdh> state doing this?
[10:43:20] <CaptHindsight> "shows us your papers"
[10:43:44] <Jymm> What is the state doing?
[10:43:57] <Jymm> or canceling that is for whle families
[10:44:02] <Jymm> whole*
[10:44:11] <jdh> licenses are .us state issued
[10:44:18] <Jymm> drivers licenses?
[10:44:36] <CaptHindsight> licenses and state ID's, yes, entire families
[10:44:50] <Jymm> How it that possible?
[10:44:54] <Jymm> and WHY?
[10:45:18] <CaptHindsight> no warning you just get a letter in the mail (and depending on how fast your mail is) you're canceled as of tomorrow
[10:45:26] <ekacnet> pcw_home: back to the current stuff, if I set current-maxlim to 10 and have the default NVMAXCURRENT to 7.5A
[10:45:30] <CaptHindsight> or in my case a week ago
[10:45:31] <jdh> what state?
[10:45:35] <CaptHindsight> IL
[10:45:48] <Jymm> CaptHindsight: and the resonaing behnd all this?
[10:45:51] <ekacnet> I will still have 7.5A at most not 10
[10:46:42] <CaptHindsight> Jymm: supposedly anything that they consider suspicious
[10:46:52] <Jymm> oh gwd
[10:46:57] <Jymm> oh gawd
[10:47:07] <CaptHindsight> stupped every lawyer I spoke with , the ACLU is investigating
[10:47:24] <CaptHindsight> stupped/stumped
[10:47:25] <mozmck> not supporting obama well enough.
[10:47:54] <CaptHindsight> I went to HS with Michelle
[10:47:57] <Jymm> CaptHindsight: I like this one better...
http://www.newnownext.com/michigan-house-passed-bill-allowing-emts-to-refuse-treatment-to-gay-people/12/2014/?fb_ref=fbshare_web
[10:48:10] <CaptHindsight> was in my English class
[10:48:17] <malcom2073> I know they won't let you renew if you owe library fines, but I've never heard of outright revoking, that's interesting
[10:48:49] <CaptHindsight> yes, and now it's easier for an undocumented alien to get a DL and State ID here
[10:49:38] <Jymm> CaptHindsight: So where are you REALLY from? huh? huh? huh? Venus? Mars? Pluto?
[10:49:39] <malcom2073> Jymm: That's halarious. I can't wait for employers to start saying "Sorry, we can't hire you because your religious beliefs prevent you from performing your job"
[10:50:46] <Jymm> malcom2073: But if the employer doensn't know and all of a sudden someone in the field refuses...
[10:50:48] <malcom2073> CaptHindsight: is obviously from IO
[10:51:01] <CaptHindsight> looks like Minn did this 2 years ago, 10K licenses were canceled
[10:51:11] <malcom2073> Jymm: True, then they get fired, then someone sues for religious discrimination, teh whole system falls down and chaos reigns
[10:51:42] <Rab> CaptHindsight, which state are you in?
[10:52:00] <CaptHindsight> http://www.fatwallet.com/forums/finance/1397967/?start=200 here's a family of 3 it happened to
[10:52:04] <CaptHindsight> IL
[10:52:07] <Jymm> malcom2073: What I don't get is the sheer indifference to refuse life saving treatment...
[10:52:07] <roycroft> michigan is an odd state
[10:52:23] <malcom2073> Jymm: That website made up that example fwiw
[10:52:30] <malcom2073> Shock news titles
[10:52:42] <Jymm> malcom2073: Sure, but still.
[10:53:09] <roycroft> the driver's license issue has to do with homeland security regulations
[10:53:11] <Jymm> malcom2073: An EMT could very well justify non-treatment due to infectious disease
[10:53:45] <roycroft> the feds require the states to perform additional verification steps in order to issue a federally recognized driver's license
[10:53:47] <malcom2073> Jymm: I'm ignoring the EMT example purely because that was shady on the part of the website.
[10:54:03] <roycroft> in oregon we handled it by issuing two types of licenses
[10:54:10] <Jymm> malcom2073: fair enough.
[10:54:17] <roycroft> if you show all the proof of citizenship stuff you get the enhanced license
[10:54:32] <roycroft> if not you get a regular license, which is not valid for crossing the canadian border or boarding planes
[10:54:42] <CaptHindsight> if you're US drivers license is no valid then you can't drive in most countries, so they take away your ability to drive just about anywhere on the planet
[10:54:51] <malcom2073> I'm more concerned with the *other* laws that will have to be passed to support that, such as legal religious discrimination in education and jobs
[10:54:51] <CaptHindsight> you're/your
[10:56:31] <CaptHindsight> I don't expect to see a revolution or even a big push back in my lifetime. Uhmericans just don't see to care.
[10:57:02] <malcom2073> True true
[10:57:17] <roycroft> a bill such as passed the michigan house will be held unconstitutional if it's signed into law
[10:57:40] <roycroft> it's not a matter of if, it's how long it will take
[11:00:24] <CaptHindsight> do you have to show ID to ride the Greyhound bus, I know Amtrack requires ID
[11:01:41] <malcom2073> Not sure, never ridden a bus beofre
[11:01:41] <CaptHindsight> thinking about it now, somebody without a passport can't drive, fly, amtrak and possible not even take a bus between cities
[11:01:43] <malcom2073> rode*
[11:02:12] <CaptHindsight> welcome to the land of the free and the home of the brave
[11:02:45] <CaptHindsight> "sorry I was on friendface and didn't hear you"
[11:13:20] <jdh> are you now, or have you ever been a member of the communist party?
[11:14:44] <CaptHindsight> who doesn't like a party?
[11:14:57] <Jymm> Is that like GGW party?
[11:15:20] <malcom2073> Sorta, but the boobs belong to the government, as do you
[11:15:49] <Jymm> Ah, gotcha
[11:17:31] <malcom2073> Lesson: Be the government
[11:18:30] * Jymm would rather Be One with the boob
[11:19:02] <Jymm> Or in the case of MArtian hookers.... Be Three with the boob
[11:19:45] <malcom2073> Have you ever seen the gauge cluster of a Honda Element?
[11:19:56] <Jymm> Nuh uh
[11:21:08] <malcom2073> http://i.ytimg.com/vi/pqW7uSK6qhU/hqdefault.jpg
[11:21:48] <Jymm> Madonna Inspired I see
[11:22:10] <malcom2073> Heh, three of 'em, count them... three!
[11:22:29] <Jymm> lol
[11:22:40] <CaptHindsight> I guess the steering wheel prevents any eye pokes
[11:22:52] <malcom2073> I didn't notice it for the first few years, until a buddy of mine hopped in and yelled Hey, it's like total recall!
[11:23:03] <CaptHindsight> Total Recall inspired
[11:51:23] <anonimasu> pcw_home: are you online?
[11:51:52] <anonimasu> pcw_home: I am stuck tryimg to spin my motors
[11:55:32] <Jymm> pcw_home: Hey, did you get a Alert msg on your phone frm the NWS?
[11:56:02] <pcw_home> Getting BLDC to spin motors the first time is often a bit interesting
[11:56:13] <pcw_home> I dont have a phone
[11:56:31] <Jymm> pcw_home: you dont have a cellphone?
[11:56:44] <pcw_home> Nope
[11:57:08] <Jymm> pcw_home: landline?
[11:57:42] <pcw_home> Yes
[11:57:51] <Jymm> ah
[11:58:45] <pcw_home> my wife has a cell, sometimes a get a throwaway if I'm on a trip
[12:05:19] <jdh> http://ww4.hdnux.com/photos/33/53/73/7257835/3/920x920.jpg
[12:06:11] <Rab> Is that in SF?
[12:07:11] <jdh> berkeley I think
[12:07:25] <anonimasu> very stuck :s
[12:07:39] <anonimasu> I have the abs stuff working, but I dont know what to do from here
[12:07:51] <anonimasu> pole count says 8 in the docs i could find
[12:07:55] <anonimasu> but motor just jumps like crazy
[12:08:04] <anonimasu> magnetic homing sometimes works..
[12:09:14] <pcw_home> getting the encoder scale right is the first thing (this includes the sign)
[12:09:57] <anonimasu> it's 4096 counts
[12:09:58] <anonimasu> rev
[12:10:08] <pcw_home> you can get the number of motor poles by energizing one winding with a limited current
[12:10:34] <anonimasu> 0.2A?
[12:10:36] <pcw_home> poles is detents *2
[12:10:42] <pcw_home> maybe 1 A
[12:17:07] <anonimasu> any halrun script to do just that=?
[12:18:46] <pcw_home> I'd just use a battery :-)
[12:20:56] <anonimasu> and just ground all the other phases?
[12:21:09] <anonimasu> or just gnd the gnd and power one phase
[12:22:09] <pcw_home> makes no difference, connect a D cell to any 2 of the three phase wires
[12:22:41] <pcw_home> (watch out for the inductive kickback when you disconnect)
[12:35:50] <anonimasu> pcw_home: so 8 poles
[12:36:31] <anonimasu> how do i determinate the count direction?(I have 4096 per turn)
[12:36:42] <anonimasu> 1024 sin/cos periods
[12:36:48] <anonimasu> trial and error?
[12:38:52] <pcw_home> so scale is 4096 (or -4096)
[12:49:31] <anonimasu> pcw_home got it working, but I have one problem magnetic homing on a bench motor doesnt work
[12:52:49] <pcw_home> magnetic homing on the 8I20 may need bldc.N.drive-offset set
[12:57:42] <pcw_home> (to 90 degrees)
[13:43:31] <anonimasu> pcw_home: if I use the abs encoder block
[13:48:42] <CaptHindsight> I just had a supplier ask me to send them all my credit card info over email!!
[13:51:23] <CaptHindsight> maybe we should just out that up on the website, save time and trouble :)
[13:51:31] <CaptHindsight> out/put
[13:59:26] <skunkworks> link?
[14:28:36] <Loetmichel> *HA, on the tinker-PC it works... ->
http://www.cyrom.org/palbum/main.php?g2_itemId=15430 <- maybe i overdid it with 3 PCs running Elite stuff ;-)
[14:29:05] <Loetmichel> (had a bit of crash problems on my main system)
[14:40:50] <zeeshan|2> http://http://earth.nullschool.net
[14:40:52] <zeeshan|2> http://earth.nullschool.net
[14:40:54] <zeeshan|2> very cool :D
[14:54:01] <CaptHindsight> zeeshan|2: are those convection charts as seen from the mothership?
[14:54:11] <zeeshan|2> wind movement :P
[14:55:49] <CaptHindsight> http://earth.nullschool.net/#current/wind/surface/level/orthographic=-173.29,45.83,755
[14:56:04] <zeeshan|2> yea i wouldnt wanna be on a boat there
[14:56:05] <zeeshan|2> :-)
[14:56:48] <CaptHindsight> I think that was Andy's path a couple of years ago
[15:01:10] <CaptHindsight> http://earth.nullschool.net/#current/wind/surface/level/orthographic=-351.98,66.67,2048 whats with all these lows so far north this late in the year?
[15:20:16] <anonimasu> pcw_home:what do I do with the absolute encoder values?
[15:20:24] * anonimasu cant solve this :S
[15:23:03] <Deejay> re
[15:28:15] <CaptHindsight> http://www.ebay.com/itm/Drum-Poly-18-5-In-20-Gal-G5443593-/271582529490 #105 seems high for only a 20Gal poly open head drum
[15:28:25] <CaptHindsight> $105ea
[15:29:41] <anonimasu> pcw_home: cant i just stick the rotor angle into the 8i20?
[15:32:10] <PCW> Sure if you have absolute numbers
[15:32:59] <anonimasu> I do have
[15:33:17] <PCW> I though you just had a incremental (quadrature) and the initial offset
[15:33:37] <anonimasu> mhm, I have initial absolute number(and motor angle)
[15:35:34] <PCW> There's probably a way to just scale and poke your original offset into BLDC encoder offset
[15:35:45] <anonimasu> got any idea whatsoever how?
[15:36:02] <PCW> No
[15:37:32] <anonimasu> what I get out from my userspace comp is "count" that sits on the first rev
[15:37:38] <PCW> loosk like you scale your initial angle into encoder counts and poke it (or maybe the additive inverse) into encoder offset
[15:37:38] <anonimasu> err for a full rev..
[15:38:02] <anonimasu> pcw_home: that is what I dont quite get how it would look like :S
[15:38:12] <PCW> setp?
[15:38:52] <anonimasu> not that part
[15:39:21] <PCW> if its needs scaling or additive inverse you need something like the scale component
[15:39:38] <anonimasu> 4096-Initial_Encoder_Counts
[15:39:54] <anonimasu> mhm--
[15:41:08] <anonimasu> the initial encoder counts is where electrical zero is supposed to be
[15:41:48] <PCW> (you may also need an offset or at least rotate the U/V/W for that to be true)
[15:46:05] <PCW> (offset 120 or 270 _electrical_ degrees = 341,643)
[15:47:09] <PCW> notice I said rotate (swapping will reverse phase rotation)
[15:48:06] <anonimasu> thanks!
[15:48:08] <anonimasu> I think I've got it
[15:48:53] <anonimasu> just -initial_counts+offset :) into bldc
[15:48:56] <anonimasu> bedtime!
[15:49:08] <anonimasu> (still at work)
[15:49:29] <PCW> 'Nite
[16:34:54] <Deejay> gn8
[21:29:55] <PetefromTn_andro> Evening linuxcnc
[21:30:22] <Tom_itx> late evening
[21:30:35] <PetefromTn_andro> Yeah
[21:31:18] <PetefromTn_andro> What goin on anything interesting
[21:34:01] <XXCoder> PetefromTn_andro:
https://www.youtube.com/watch?v=LoXjQkjosFs&feature=youtu.be
[21:34:13] <XXCoder> ksp with realistic mod
[21:34:47] <PetefromTn_andro> Did a bunch of running around today. Tomorrow I am going to take a crack at converting the cnc to be imperial native. Want to get the cutter compensation working finally.
[21:37:42] <PetefromTn_andro> Interesting what is that some kinda spaceflight SIM?
[21:38:00] <XXCoder> yeah build rockets and fly em
[21:38:13] <PetefromTn_andro> Don't have time to watch the whole vid
[21:38:28] <XXCoder> realistic mod seem to make it earth and moon and apparently use around realistic tech back then
[21:38:45] <PetefromTn_andro> Fun. Not my thing but I can see people enjoying it.
[21:39:37] <[cube]> https://vine.co/v/O6O6TMDrzBt
[21:40:12] <XXCoder> interesting
[21:40:16] <PetefromTn_andro> Still have this fracking dizziness a bit even after almost five days now. Sucks big time.
[21:40:49] <jdh> that sucks. did you see an ENT?
[21:41:02] <XXCoder> what happened?
[21:41:53] <PetefromTn_andro> I had some kinda vertigo episode coupled with a flu like issues
[21:42:25] <PetefromTn_andro> No not yet other than going to my pcp and the ER that day...
[21:42:46] <XXCoder> dizzyness sucks
[21:42:49] <XXCoder> I get it often
[21:43:01] <XXCoder> in least its not constant for 9 months like I had after car accient
[21:43:14] <PetefromTn_andro> It had gotten considerably better but the last little bit won't dissipate
[21:44:11] <PetefromTn_andro> Never had anything like this before in my entire life and it is really taxing on your energy levels
[21:45:10] <PetefromTn_andro> Worst part is that it kinda blurs my vision slightly when I move my head a little bit too fast.
[21:45:52] <PetefromTn_andro> As long as I am sitting still and not moving around to much I feel perfectly normal
[21:46:52] <PetefromTn_andro> When I try to run or drive over bumps it kinda hits me a bit. Nothing like that first few days but enough to really get annoying
[21:47:26] <PetefromTn_andro> Hopefully it will be gone with a few more days healing
[21:48:11] <PetefromTn_andro> I managed to get some customers parts machined yesterday and delivered them this morning. That felt good.
[21:48:43] <Jymm> Has anyone seen/used any "can apply when wet" duct tape?
[21:49:09] <PetefromTn_andro> Got some orders for some of those custom battery trays I designed and prototype built awhile back
[21:49:44] <PetefromTn_andro> Not really.
[21:50:38] <Tom_itx> http://www.amazon.com/3M-2245-Heavy-Duty-All-Weather/dp/B0013AX62K
[21:50:51] <skunkworks> PetefromTn_andro: working in odd positions lately?
[21:51:21] <PetefromTn_andro> This double sided tape I used for the Alice in Chains edge lit acrylic sign is some serious sticky Shit tho LOL
[21:51:55] <PetefromTn_andro> No not really why do you ask?
[21:51:56] <jdh> we have some foamy 3m double sided tape at work that is great
[21:52:14] <Tom_itx> http://machinedesign.com/archive/power-tape-sticks-wet-surfaces
[21:52:20] <Tom_itx> Jymmmmmmmmmmmmmmmm
[21:52:43] <skunkworks> vertigo can give you flu like symptomss
[21:53:30] <PetefromTn_andro> Oh yeah man... Vomiting, from either end LOL headache, weakness....you name it I had it..
[21:54:06] <PetefromTn_andro> Sucks just does not adequately describe the phenomenon
[21:54:45] <PetefromTn_andro> Would not wish it on my worst enemy seriously....
[21:55:27] <PetefromTn_andro> After more than five days I am still messed up by it.
[21:56:10] <PetefromTn_andro> Have you ever experienced it skunkie
[21:56:14] <Tom_itx> Jymm, also possibly:
http://www.gorillaglue.com/gorilla-tape
[21:56:57] <PetefromTn_andro> Jymm what is the application for the wet duct tape?
[21:57:05] <Tom_itx> gonna patch your canoe mid stream?
[22:00:51] <skunkworks> not to that extent.. vertigo doesn't bother me too bad. I just get the spinnies - like riding a roller-coaster - no nausea. Mom and sister get it really bad.
[22:02:59] <PetefromTn_andro> I never had it before ever and the doctor at the er said I was pretty dehydrated so that was a contributing factor along with the possibility of a bug/flu
[22:04:10] <PetefromTn_andro> Just got all of it together gave me the kung fu chop and knocked the hell out of me unfortunately.
[22:05:15] <PetefromTn_andro> I swear when it first started strongly I would have believed it if someone told me I was having a stroke or something....
[22:05:35] <unfy> after looking at plenty of pictures, plans, etc online ... i've decided on a ... custom / hybrid thing for a 16" x 16" cnc router ._.
[22:06:00] <PetefromTn_andro> What are you making it out of?
[22:06:38] <unfy> aluminum square tubing, aluminum L brackets, acrylic (or some other plastic).
[22:07:04] <jdh> looking for cheap, fast, or good?
[22:07:18] <PetefromTn_andro> Aluminum extrusion or actual tubing?
[22:07:26] <unfy> i'm going small for a first build, and i currently have limited motor power ._.
[22:07:29] <unfy> actual tubing :P
[22:07:56] <unfy> jdh: primarily cheap.
[22:08:26] <jdh> my 6040 was surprisingly good out of the box. not so cheap though
[22:08:28] <PetefromTn_andro> I am always of the go bigger camp when it comes to building machines even if it just means more travels.
[22:09:12] <unfy> am also wanting the moving gantry rather than moving bed (ie: to get experience so if decide to then go to 4'x8' ...)
[22:09:40] <unfy> pete: this machine will sit on a table in my apartment. well in a sound proofing box in my apartment. smaller is beneficial.
[22:10:26] <PetefromTn_andro> Connor built a neat little fully enclosed router from mdf that sits in his office.
[22:10:43] <unfy> if i didn't have limited motor power, i'd go full mdf.
[22:11:06] <PetefromTn_andro> Why do you have limited motor power
[22:11:30] <unfy> because i bought some 76oz/in nema17's on the cheap and would like to see if they can be made to work :P
[22:11:49] <jdh> they should cost like $5?
[22:12:07] <jdh> put them in box in teh closet
[22:12:07] <unfy> these were ~$9 a piece or so.
[22:12:30] <PetefromTn_andro> Dunno what to tell you man never used anything that small
[22:12:58] <unfy> indeed.
[22:13:35] <unfy> i'll get this thing build and will then be able to tell how things are going :P
[22:14:23] <PetefromTn_andro> Honestly I can't understand going thru the trouble and time expense of building a cnc anything that is not really useful and capable when it is finished.
[22:15:32] <unfy> well, if the motors are strong enough to work - yay. if not - i'll just pick up something stronger. and a working area of 8"x8" to 14"x14" or so does indeed have an immediate use for me (pcb drilling)
[22:16:12] <PetefromTn_andro> At the end of the day the only difference between a really nice rigid little machine and a floppy flimsy weak piece of useless junk is a bit more care and time and just a bit more cost really.
[22:18:02] <PetefromTn_andro> But that fact sure doesn't stop tons of folks from building cnc routers from duct tape bailing wire and shoelaces hehe
[22:18:30] <unfy> i won't have any shoe laces :P
[22:18:43] <PetefromTn_andro> Well save up LOL
[22:19:28] <unfy> i'm a fan of over engineered stuff, but i think this will do just fine.
[22:19:31] <PetefromTn_andro> Are you going to tig welding that tube together or just bolts everything together or what?
[22:20:02] <unfy> bolts + brazing was the plan.
[22:20:39] <Rab> unfy, if you use belt drive to couple the steppers and a decent reduction ratio, you'll get more torque (at the expense of speed).
[22:20:53] <Rab> Also better resolution.
[22:21:20] <PetefromTn_andro> Interesting. Done a bit of brazing... Fastened the cable guides on my homebuilt recumbent bike with it..
[22:22:35] <Rab> I'm a fan of moving bed rather than moving gantry, less torque is required for the X axis and a fixed gantry is more rigid. But I understand it takes more space.
[22:23:09] <unfy> rab: if the nema17's can't do it, i'll just plop down the cash for bigger motors. i've never been a fan of belt stuff. dunno why ._.
[22:23:23] <unfy> as far as a gear system, i've debated it :)
[22:23:26] <PetefromTn_andro> I like that little microcarve machine with the tensioner frame and moving bed.
[22:24:12] <PetefromTn_andro> Nothing wrong with a timing belt drive setup.
[22:24:28] <unfy> personal hatred. i don't know why, just have it.
[22:24:44] <unfy> have hated them for ~20 years.
[22:26:23] <skunkworks> you like gear trains over belts?
[22:26:33] <PetefromTn_andro> They are well suited to a small low power router table. With quality components you should be able to get good accuracy.
[22:26:41] <unfy> i dislike long belts.
[22:27:19] <unfy> i know belt/chain systems are more efficient than just meshing gears, but i just hate long belt systems
[22:27:20] <PetefromTn_andro> They are also much quieter than other alternatives
[22:27:34] <Rab> unfy, I'm talking about pulley drive, not long belt.
[22:28:02] <Jymm> Tom_itx: TYVM
[22:28:42] <unfy> rab: possibly then
[22:29:25] <PetefromTn_andro> What kind of pulley drive system do you mean
[22:30:17] <unfy> i think he's just referring to a two gear system to increase torque between motor and lead screw.
[22:30:28] <Rab> Yeah, like so:
http://reboots.g-cipher.net/ghettocnc/parts02.jpg
[22:30:46] <Jymm> Tom_itx: Sadly, it's a europe thing
[22:31:06] <PetefromTn_andro> Oh just a belt drive setup for the motor.
[22:31:06] <Rab> (The belt in that pic is the wrong pitch, don't look too closely)
[22:33:34] <PetefromTn_andro> Well goodnight folks.
[22:33:49] <unfy> i think it'll be build this. see what i think and plan on next one or modifications to existing. the drive reduction thing was always in back of head as a possibility... but not something i was planning on.
[22:34:21] <unfy> i have /no/ problems with building 3 of these. a starting 'wtf', a 'this is better', and then maybe a 'this is what i really want' heh.
[22:35:06] <unfy> if i "just wanted a machine" - i'd spend the $700-$2000 on one. but i'm wanting to playyyyyyyy heh
[22:35:22] <unfy> well, 700-4000 i suppose
[22:37:02] <Rab> $700-1000000+
[22:37:56] <unfy> lol. i'm no business, >$5k is beyond me
[22:49:10] <zeeshan|2> speaking of gantry mills
[22:49:15] <zeeshan|2> i found my favourite
[22:49:22] <unfy> oh ?
[22:50:14] <zeeshan|2> http://www.datron.com/cnc-machines/m8.php
[22:50:26] <zeeshan|2> https://www.youtube.com/watch?v=aCeywiKCYhA
[22:50:27] <zeeshan|2> in action
[22:51:58] <unfy> look at the chips fly
[22:52:08] <zeeshan|2> its amazing how rigid that gantry is.
[22:52:25] <zeeshan|2> almost a mirror finish :)
[22:52:50] <unfy> that thing just don't care... it's butter!
[22:53:04] <zeeshan|2> i love those mastercam high speed tool paths
[23:13:43] <renesis> haha, i like the little tool cover
[23:13:53] <renesis> trap door
[23:44:33] <Connor> unfy:
http://www.ivdc.com/cnc/cnc8.jpg http://www.ivdc.com/cnc/cnc9.jpg
[23:46:30] <CaptHindsight> zeeshan|2: in what way does this save the world and I didn't see any sort of filament extruder attachment :p
[23:54:32] <unfy> connor: sexy
