#linuxcnc | Logs for 2016-06-22

[02:24:11] <Deejay> moin
[04:43:31] <XXCoder> boow
[05:01:38] <XXCoder> hey
[05:15:18] <jthornton> Yippie 12.5 stone only 1/2 stone to go
[05:15:53] <XXCoder> nice. you got stones to lose stones ;)
[05:18:19] <SpeedEvil> yay
[05:18:29] <SpeedEvil> stones are a quite appropriate unit
[05:18:39] <SpeedEvil> lb/kg are too small to really tell visually
[05:18:50] <SpeedEvil> and both fluctuate on a daily basis
[05:20:05] <XXCoder> https://67.media.tumblr.com/fbaa675db8155f4396db75369ec67676/tumblr_o91t03wOle1uke22ao1_400.gif
[05:20:24] <XXCoder> is it bicyling, walking or something else? lol
[05:20:40] <XXCoder> anyway I made my adoptor plate blanks at work :)
[05:21:05] <XXCoder> gonna run program to cut it into adoptor plates evenually
[05:28:17] <jthornton> what are you building?
[05:28:34] <XXCoder> adoptor plates to fit 52 mm diamter spindle on my machone
[05:34:54] <XXCoder> done with hdpe bottles for day lol
[05:34:58] <XXCoder> 3 bottles a day :P
[05:36:40] <jthornton> you melt any yet?
[05:36:59] <XXCoder> nah cant do during week
[05:37:10] <XXCoder> I have yet to buy stuff to do that, like wax sheet
[05:37:14] <XXCoder> wax paper
[05:41:03] <jthornton> I wonder if non stick foil would work
[05:46:57] <XXCoder> dunno?
[05:47:07] <XXCoder> I'mnjust sticking to recipe for now. (heh)
[05:50:01] <mase-tech> Hi peps
[05:50:04] <mase-tech> whats up
[05:50:14] <XXCoder> the nearly full moon
[05:50:35] <mase-tech> There is an american song
[05:50:51] <mase-tech> it never rains in carlifornia
[05:51:01] <mase-tech> here it is the oppposit
[05:51:12] <mase-tech> it never is sunny in germany
[05:51:19] <nos> So I probably got a job today. My teacher called me while I was getting my hair cut for a wedding.
[05:51:57] <mase-tech> nos: don t forget ur cereals with water
[05:53:40] <nos> Picking up freight from China, then heading out to see. Looks like good weather.
[05:54:58] <XXCoder> nos: probably congats :)
[05:55:04] <XXCoder> if job, what would it be?
[05:58:21] <jthornton> I think I finally have all my notes straight to build rt preempt on debian wheezy as well as tame wheezy
[06:02:47] <nos> Custom spare parts for a vintage Mercedes.
[06:07:57] <jthornton> looks like hot hot hot for the forecast here
[06:08:12] <XXCoder> here is been warm to cool
[06:08:16] <XXCoder> HUMMMMMID though
[06:08:24] <XXCoder> feels like its raining without raining
[06:10:27] <jthornton> humidity high 80's here
[06:10:53] <XXCoder> felt like 200% in day lol (kidding, actual i geuss 90+%
[06:11:09] <XXCoder> (humid percent can go over 100%, we call it rain)
[06:13:47] <jthornton> chance of pop up t-storms all week
[06:14:00] <XXCoder> here its quite rare to have storms, we had one yeserday though
[06:14:03] <XXCoder> brief one
[06:14:27] <XXCoder> fairly rare thunderstorm, very rare full moon on first day of summer
[06:14:30] <XXCoder> must be sign :P
[06:15:50] <nos> \o/
[06:46:32] <XXCoder> laters
[09:32:04] <CaptHindsight> shocking bounce house video https://www.youtube.com/watch?v=yYYKenxyQiA we didn't have these when i was a kid
[09:33:13] <SpeedEvil> https://www.youtube.com/watch?v=LUZDlP8W7Wo how to easily open padlocks
[09:33:43] <tiwake> torch?
[09:33:51] <SpeedEvil> no
[09:33:55] <gregcnc> don't fill it with helium?
[09:33:56] <SpeedEvil> Quicker.
[09:36:23] <enleth> SpeedEvil: you don't even need that for some padlocks. A friend of mine was trying to open a padlock to get to some stuff that belonged to us but was locked up by the landlord by mistake and we needed it *fast*. He started poking the padlock with a lockpick - no torque wrench at this point - just to get a feel of how many pins are there. He was talking with me in the process, looking at me, not the
[09:36:29] <enleth> padlock, and suddently the thing dropped from his hands to the floor.
[09:37:06] <enleth> Let me reiterate: it sprung open because someone was trying to determine how many pins are there, not actually trying to open it yet.
[09:37:11] <SpeedEvil> yeah - I knwo - I was just amused by the above
[09:37:28] <CaptHindsight> lock guns https://www.youtube.com/watch?v=y_YgCw4oA00
[09:37:38] <enleth> He was standing there empty handed for a few seconds trying to understand what just happened.
[09:37:51] <tiwake> talk about security
[09:38:22] <CaptHindsight> the lock in the first vid has brass guts, would take <1 min with a drill
[09:38:26] <tiwake> people and computers is even worse a lot of times
[09:39:58] <CaptHindsight> most locks are for keeping dumb people out
[09:40:01] <gregcnc> https://youtu.be/YeEO5qNmPh4?t=55s is this effective only for cheap locks?
[09:40:38] <SpeedEvil> gregcnc: It should be, yes
[09:40:52] <SpeedEvil> Tehre are a number of ways round shimming padlocks
[09:43:35] <gregcnc> Capthindsight did you batten down the hatches?
[09:44:08] <CaptHindsight> most locks on doors are poorly installed as well
[09:44:40] <tiwake> credit card entry
[09:44:43] <tiwake> heh
[09:44:58] <CaptHindsight> plus now with all the cordless tools
[09:46:32] <CaptHindsight> diy thermite
[09:47:06] <tiwake> I wouldent mind setting up my own small production gun powder making thing
[09:48:12] <gregcnc> a pair of 1" screws on a tiny strike plate isn't very effective
[09:48:44] <SpeedEvil> Just wear a bright fluro jacket, and carry a door and a circular saw up to the house.
[09:49:02] <SpeedEvil> Place the door next to where you want to go, and remove old door.
[09:49:02] <tiwake> heh there you go
[09:49:27] <tiwake> front door
[09:49:45] <gregcnc> basement window
[09:50:57] <CaptHindsight> whats a good bike lock?
[09:51:50] <tiwake> something like rick and morty, "keep morgan safe"
[09:52:18] <CaptHindsight> sacrificial thermite seat that triggers after 60 seconds
[09:52:42] <tiwake> there you go
[09:52:51] <CaptHindsight> explosive wheel bolts
[09:53:03] <tiwake> maybe a hidden disarming button
[09:53:09] <gregcnc> https://www.kickstarter.com/projects/673350631/bike-mine-the-ultimate-alarm-to-protect-your-preci?lang=es
[09:54:01] <tiwake> thats just a show thing
[09:54:52] <tiwake> like car alarms, everyone just ignores them
[09:55:07] <tiwake> hard to ignore half of a butt-cheek missing
[09:55:20] <gregcnc> seems too messy
[09:55:31] <tiwake> it will stop the thefts
[09:55:40] <tiwake> or help anyway
[09:55:44] <CaptHindsight> exploding handle bars
[09:56:12] <CaptHindsight> or highly adhesive handle bars and seat
[09:56:19] <SpeedEvil> a heavy coating of rust
[09:56:21] <tiwake> screw it, just nuke the whole thing
[09:56:27] <SpeedEvil> That looks structural
[09:57:19] <CaptHindsight> 100KV shock between seat and pedals
[09:57:28] <CaptHindsight> or between hand rests
[09:57:52] <CaptHindsight> brake handles
[09:58:25] <CaptHindsight> hiding a taser in the seat would be pretty easy
[09:58:59] <gregcnc> fixed speed bike is also effective
[09:59:22] <CaptHindsight> have they made tasers only available for police entertainment now?
[10:00:27] <CaptHindsight> i want a fixed speed bike that goes about 30 mph
[10:00:55] <CaptHindsight> do you have to pedal it?
[10:01:53] <gregcnc> only if you want to get somewhere
[10:02:21] <gregcnc> or for exercise even
[10:02:51] <CaptHindsight> maybe some eco-friendly versions
[10:03:13] <gregcnc> you can get bamboo frame
[10:03:26] <CaptHindsight> whats the incubation time for ebola?
[10:03:43] <CaptHindsight> can bees be trained to only attack strangers?
[10:05:41] <CaptHindsight> Curare laced seat barbs
[10:07:15] <CaptHindsight> not sure what the local liability laws are on any of these
[10:33:35] <gregcnc> gps tracker https://www.youtube.com/watch?v=LxhsFAKOdF8 Watch How Long It Takes For A Thief To Snatch A Locked Bicycle
[11:20:33] <roycroft> i'm considering a braking resistor for my grinder motor, and want to be sure i understand what i can get
[11:21:01] <roycroft> if the power rating of the resistor is the same as the vfd specifies, but the resistance is slightly higher, that should work fine, but will brake a bit more slowly, right?
[11:21:09] <SpeedEvil> yes
[11:21:28] <SpeedEvil> heating elements are a good cheap source
[11:21:57] <roycroft> for example, the vfd specifies 70 ohms @300 watts, but it's a 2.2kw vfd
[11:22:11] <SpeedEvil> http://www.ebay.co.uk/itm/Bush-AE6BFS-Top-Oven-Grill-Heating-Element-Square-1200-1400w-/141799490488?hash=item2103e883b8:g:MDYAAOSw~bFWG4Zm
[11:22:11] <roycroft> my motor is 2hp, and the spec for the 1.5k2 vfd is 100 ohms $300w
[11:22:24] <Jymmm> find an old electric stove heating element coil =)
[11:22:28] <roycroft> i found a nice braking resistor that's 117 ohms @300w
[11:22:55] <roycroft> nice meaning brand new and made in the usa
[11:23:08] <SpeedEvil> you could always parallel with a 500 ohm 50W one
[11:23:17] <roycroft> sure
[11:23:32] <SpeedEvil> It's almost certainly not going to be noticable though
[11:24:06] <roycroft> the motor takes 30 seconds to spin down as it is set up right now
[11:24:14] <roycroft> i'd like to stop it faster
[11:24:14] <gregcnc> no dc braking?
[11:24:38] <roycroft> i need the braking resistor for that
[11:24:47] <gregcnc> not for DC
[11:26:07] <roycroft> oh, there is a dc braking feature
[11:26:10] <roycroft> i should look at that
[11:27:19] <roycroft> http://www.jinlantrade.com/ebay/invertermanual.pdf
[11:27:27] <roycroft> that's the manual for my inverter, in case anyone is interested
[11:27:28] <pcw_home> DC braking uses the rotor for the braking resistor :-)
[11:27:39] <roycroft> it's not engrish, but it's terse
[11:28:05] <roycroft> there's a parameter for dc braking
[11:28:12] <roycroft> it's set to 2% by default
[11:28:20] <roycroft> and can be set up to 20%
[11:28:30] <roycroft> so adjusting that up might help for now
[11:29:00] <gregcnc> you may need to enable DC braking
[11:29:12] <roycroft> yes, i'm looking for a toggle parameter
[11:30:15] <roycroft> and there is a parameter for that
[11:30:20] <roycroft> two, actually
[11:30:39] <roycroft> one for dc braking at start - used to ensure the motor is not rotating the wrong direction at start
[11:30:44] <roycroft> and one for dc braking at stop
[11:30:48] <roycroft> which is disabled by default
[11:31:41] <roycroft> there's also a stopping mode parameter which can be set to decelerate or coast, and it's set to decelerate by default
[11:31:46] <roycroft> which explains the 30 second spin-down
[11:35:03] <roycroft> i found out last night that the serial number of my inverter is 65536
[11:35:11] <roycroft> i wonder how many of them share that same serial number
[11:35:19] <roycroft> i would guess all of them
[11:35:24] <enleth> roycroft: unless your spindle is pretty heavy, you should be able to cut the deceleration time down a lot safely even without a brake
[11:36:35] <enleth> roycroft: I'm stopping a 2hp Bridgeport spindle motor in 3s without a braking resistor and the measured bus voltages don't exceed the VFD's maximum back-EMF rating
[11:36:40] <roycroft> enleth: last night i changed only the parameters required to test basic functionality
[11:37:00] <roycroft> i haven't done anything with acceleration/deceleration times yet
[11:37:11] <gregcnc> Enleth DC or decel ramp?
[11:37:12] <roycroft> that will be my next round of testing
[11:37:17] <enleth> roycroft: I'd need a braking resistor though, if I wanted the e-stop to stop the thing dead nuts within a couple revolutions
[11:37:22] <enleth> gregcnc: ramp
[11:37:31] <roycroft> and i might want that, enleth
[11:37:43] <enleth> but for a tool change stop, within 3s is fine
[11:37:50] <roycroft> i've been using grinders for decades, and have never needed to stop one instantly before
[11:38:05] <roycroft> but there could be a situation where that's useful or critical
[11:38:16] <enleth> I tried a 2s ramp, but the voltage spikes have been a bit worrying, so I kept it at 3s
[11:38:38] <roycroft> i'll experiment with the ramp times, and dc braking, before deciding if i want a braking resistor
[11:38:40] <gregcnc> been using DC braking on my lathe for years now.
[11:39:39] <roycroft> when i was in machining classes i always found it impressive that i could flip the forward-reverse switch and the lathe would instantly change directions
[11:39:46] <roycroft> i don't need that
[11:39:54] <CaptHindsight> you could modify a disc brake from an auto to act a s a clutch and then absorb the energy into a paddle wheel mounted in a fish tank filled with water
[11:39:58] <roycroft> perhaps when tapping it would be useful
[11:40:06] <roycroft> but on a grinder i certainly don't need it
[11:40:59] <enleth> or even just install an automotive brake on the back of the spindle
[11:41:13] <roycroft> 3 seconds would be more then sufficient for a grinder, i should think
[11:41:22] <enleth> a brake designed to stop a 2ton car going at a high speed should handle a machine spindle nicely
[11:42:12] <roycroft> a big bollard will stop the car car faster than a brake
[11:42:38] <enleth> unless it turns out to brake too sharply for the grinding wheel mount to take it
[11:45:42] <CaptHindsight> use smaller brake pads
[11:46:54] <CaptHindsight> or a hydraulic coupled clutch, open the valve when the wheel should stop
[11:47:34] <CaptHindsight> a torque converter
[11:47:38] <roycroft> my motor does whine quite a bit while on the inverter, btw
[11:47:49] <roycroft> i shall solve that problem by turning up the volume on my shop stereo
[11:49:29] <CaptHindsight> how about ear plugs that close when the sound level goes above 70db?
[11:50:26] <roycroft> there are some fancy noise-cancelling headphones that would let me listen to music while blocking out noise without having to turn the music up to eardrum-piercing levels
[11:50:30] <CaptHindsight> I think 70db is the level that nagging also occurs
[11:50:34] <roycroft> but they're pretty expensive
[11:50:39] <roycroft> i should look into them though
[11:50:46] <roycroft> especially if there's a bluetooth version
[11:51:05] <CaptHindsight> they have dropped in price since they are so popular for air travel
[11:51:24] <CaptHindsight> I need a version that is tuned to cancel out baby crying
[11:51:26] <Polymorphism> active electronic shooters muffs
[11:51:26] <roycroft> i don't think they're 100% effective at blocking out noise, but that's good
[11:51:38] <roycroft> i want to hear my machines so i know if something is wrong
[11:51:43] <gregcnc> one of my motors doesn't behave well on the VFD. loses sync at times. don't have a megger to check the motor, but I suspect the 50$ ebay AB vfd
[11:51:43] <Polymorphism> thats what you need
[11:52:45] <Polymorphism> https://www.amazon.com/Howard-Leight-Amplification-Electronic-R-01526/dp/B001T7QJ9O/ something like this perhaps
[11:53:33] <roycroft> yeah, something like that could work
[11:53:47] <roycroft> and while bluetooth would be nice, i still use an ipod all the time, which is tiny
[11:53:55] <roycroft> it generally docks to my shop stereo
[11:54:02] <roycroft> but it can live in my pocket
[11:54:17] <roycroft> the color doesn't excite me
[11:54:33] <gregcnc> I put noise amplifiers on my machines like the Harley guys
[11:54:36] <djdelorie> spray paint it
[11:54:38] <roycroft> but that can be fixed :)
[11:54:56] * roycroft would tie-dye his
[11:55:19] <djdelorie> find any teenage girl and tell them to nail polish it
[12:18:28] <CaptHindsight> http://www.tpa-us.com/high-temperature-linear-bearings.html i wonder how high a temp you can go with linear bearings?
[12:20:08] <CaptHindsight> http://www.hepcomotion.com/product/linear-motion-components/high-temperature-and-vacuum-linear-motion-system/
[12:34:04] <JT-Shop> http://gnipsel.com/images/blast-cabinet/Blast%20Cabinet%2029.JPG
[12:34:41] <Polymorphism> nice looking cnc JT-Shop
[12:35:08] <archivist> aint no cnc in a blast cabinet
[12:35:30] <JT-Shop> why not?
[12:35:31] <archivist> that looks grit hopper
[12:35:46] <Polymorphism> xD
[12:36:07] <archivist> you got hand holes in previous pics so I know its mandraulic
[12:38:00] <CaptHindsight> my blast gun jambs far too often
[12:39:01] <CaptHindsight> when using sand
[12:39:07] <archivist> I just have knotted wire brush on an angle grinder
[12:39:35] <archivist> one has to remove wires occasionally
[12:52:51] <alex4nder> ok
[12:52:55] <alex4nder> VESC PCBs ordered
[12:54:29] <alex4nder> a couple weeks, and I'll be able to start on my 4th axis
[13:01:02] <andypugh> VESC?
[13:04:19] <archivist> this ? http://vedder.se/2015/01/vesc-open-source-esc/comment-page-3/
[13:31:37] <CaptHindsight> amazing how so much can be written about an acronym without ever explaining what it stands for :)
[13:33:32] <CaptHindsight> https://en.wikipedia.org/wiki/Electronic_speed_control
[13:34:27] <lair82> JT-Shop, you around?
[13:39:08] <Jymmm> Will never order anything from menards again
[13:49:22] <Frank_11> guys can u recommend a good voltimeter? or multimeter? i dont know how it is exactly called
[13:50:08] <Deejay> fluke? ;)
[13:50:57] <gregcnc> I ordered a $70 fluke 362 off amazon, just hoping I don't get a box of clay.
[13:51:23] <Deejay> ah, the cheap flukes made in china
[13:51:42] <Deejay> the good ones are made in the united states of the americas!
[13:51:53] <cpresser> Frank_11: those are also quite good for the price https://sigrok.org/wiki/Brymen_BM857
[13:53:33] <Frank_11> lol
[13:55:10] <cpresser> whats lol about that?
[13:55:43] <Frank_11> 300 dolars for a fluke XP
[13:56:11] <Frank_11> cant find a brymen on amazon
[13:56:45] <enleth> some UNI-Ts are ok for hobby usage
[13:57:15] <enleth> my UT70A does pretty good for the price
[13:57:51] <JT-Shop> lair82: aye
[14:00:09] <Frank_11> cpresser: i was laughing about what gregcnc said,
[14:00:34] <lair82> Hey JT, I see you sell 80GB HD's for $45 loaded up and ready to go, are you only going to sell 80's, or are you going to offer other sizes?
[14:02:09] <_methods> i think that fluke 17b is supposed to be good bang for the buck
[14:02:37] <_methods> http://www.aliexpress.com/item/Original-Fluke-17B-F17B-Digital-Multimeter-with-temperature-probe-can-measure-temperature/32548406195.html?spm=2114.01010208.3.2.F2AB0p&ws_ab_test=searchweb201556_10,searchweb201602_3_10017_10040,searchweb201603_11&btsid=2af155fd-241d-4d37-aac8-2e43c13b81be
[14:02:39] <_methods> doh
[14:02:42] <_methods> bad linkie
[14:03:04] <_methods> http://www.aliexpress.com/item/Original-Fluke-17B-F17B-Digital-Multimeter-with-temperature-probe-can-measure-temperature/32548406195.html
[14:03:09] <_methods> there ya go
[14:04:53] <JT-Shop> I just have 80's, do you need more or less?
[14:07:05] <lair82> I always buy at least 120's, they like to leave there programs on the machines, and on the mill side they are running some programs north of 250k lines of code.
[14:07:22] <lair82> I was just wondering
[14:07:42] <JT-Shop> seemed like a reasonable size for a CNC machine
[14:07:59] <lair82> I can't even come close to $45 by the time I load the OS
[14:08:34] <JT-Shop> they also have things like G code generators and other handy stuff loaded
[14:08:59] <JT-Shop> auto login, file sharing is fixed etc.
[14:11:29] <JT-Shop> I'm a dimwit today, I just plasma cut the outside of the part first... lucky me the inside cuts worked out lol
[14:11:38] <lair82> It's a pretty sweet deal, I'm probably going to order a couple, just to have on the shelf
[14:14:38] <JT-Shop> which one do you favor?
[14:18:57] <andypugh> I bought Chinee-Fluke from eBay for £50. We will see if it is any good. As far as I can tell they are “real” but only really intended for the Chinese market.
[14:23:02] <andypugh> I am milling pink model-board PU foam with a 20mm ball-nose and 10mm DOC. It looks like my workshop has been the venue for a cherry-blossom festival.
[14:23:49] <gregcnc> no hoover in the shop?
[14:24:07] <andypugh> Yes, but more keeps falling as the job progresses
[14:26:27] <lair82> JT_Shop, I looked at the uspace on preempt-rt hd's.
[14:28:25] <JT-Shop> yea I like that one best
[14:28:52] <roycroft> i presume your beard looks like candy floss as well
[14:29:26] <lair82> How did you make out getting that H97M board to run?
[14:34:17] <landau> Hello, I have a problem compiling an RTAI kernel. the Module.symvers file in the kernel folder doesen't have any RTAI module
[14:34:28] <landau> is that normal?
[14:35:36] <landau> for this reason I think i have this errors when I try to run linuxcnc http://pastebin.com/raw/zVEiuKUC
[14:36:06] <cradek> do the rtai tests work?
[14:36:40] <JT-Shop> lair82: runs great on 4.1.20-rt23
[14:36:40] <landau> how to have RTAI tests?
[14:37:03] <cradek> not sure, check the rtai docs
[14:37:33] <cradek> I suggest get rtai working before worrying about linuxcnc
[14:37:57] <lair82> JT_Shop did you use the ethtool command as well?
[14:38:23] <landau> ok
[14:41:00] <Sync> andypugh: they are ok
[14:41:18] <andypugh> ?
[14:41:39] <JT-Shop> lair82: don't think I had to use ethtool
[14:41:39] <Sync> the china flukes
[14:43:09] <andypugh> Ah, right. I tend to forget what I just said :-(
[14:52:20] <jdh> speaking of flukes, I orderd a 287 that should be here tomorrow
[14:53:11] <jdh> semi random pick based on cost
[15:00:48] <roycroft> my main fluke is an 87v
[15:00:52] <roycroft> i have a couple older ones as well
[15:00:59] <roycroft> but that's the go-to fluke
[15:03:25] * Deejay has a fluke 179 since some years now and is happy with it
[15:03:58] <roycroft> the 179 is a worthy fluke
[15:08:59] <Frank_11> the 7i76 are out of stock T_T i will have to buy a 7i78 and a 7i84+ 5i25, im guessing it wont be easy to configurate right?
[15:09:57] <andypugh> Complicated things, flukes: https://en.wikipedia.org/wiki/Trematoda
[15:11:00] <andypugh> Frank_11: JT shows 7i76 in stock: http://mesaus.com/index.php?route=product/product&path=62&product_id=53
[15:12:01] <Frank_11> what the heck ? http://store.mesanet.com/index.php?route=product/product&path=69_71&product_id=119
[15:12:36] <andypugh> Looks like Mesa sent them all to JT :-)
[15:12:37] <Frank_11> nice webpage
[15:13:14] <Frank_11> ohh
[15:13:42] <Frank_11> so jt shop is a reseller?
[15:13:49] <andypugh> Yes
[15:17:04] <Frank_11> JT-shop: hi! do you accept visa debit card from overseas?? i need a 5i25+7i76 sent to a hotel in Orlando, and how long could it take to get it shiped after the payment? thanks
[15:17:54] <Frank_11> as usual, Thanks andy! hehe
[15:18:47] <JT-Shop> Frank_11: yes through PayPal
[15:19:59] <Frank_11> crap, i dont have paypal,
[15:21:26] <andypugh> It’s easy to get Paypal, I think.
[15:21:43] <JT-Shop> you don't need PayPal
[15:22:07] <JT-Shop> I use PayPal to handle credit card charges
[15:22:16] <Frank_11> i send it to your paypal account
[15:22:24] <JT-Shop> no don't do that
[15:22:29] <Frank_11> lol
[15:22:44] <Frank_11> debit card too?
[15:22:48] <JT-Shop> place an order online and at checkout you go to PayPal and give your CC info
[15:22:52] <JT-Shop> yea
[15:23:11] <Frank_11> ohh
[15:23:14] <JT-Shop> Orlando is prob 2-3 days from here
[15:23:39] <Frank_11> i hope the hotel doesnt charge me for holding the package
[15:27:06] <JT-Shop> are you there now or expect to be there soon?
[15:45:05] <Frank_11> a family member,
[15:45:10] <Frank_11> until 4th of july
[15:45:22] <Frank_11> just noticed thats your independance day lol
[15:45:49] <XXCoder> yeah pollute the sky day
[15:46:05] <Frank_11> hehe
[15:48:14] <XXCoder> I wonder how much all those fireworks affect weather, but I bet you scientists dont want to be party pooper heh
[15:48:35] <djdelorie> the scientists will insist on extended experimentation...
[15:48:47] <XXCoder> lol
[15:48:54] <XXCoder> fireworks week! lol
[15:49:19] <andypugh> 50 years of observations by me indicate that it is always foggy the day after the 5th of November.
[15:49:38] <alex4nder> andypugh / archivist : yah,.. that speed controller has been used for a bunch of electric skateboard products.. and now it supposed quadrature encoders
[15:49:49] <alex4nder> and there's been work on supporting step / dir
[15:49:55] <djdelorie> yeah, but that's the UK - it's always foggy the day after *every* day...
[15:50:17] <andypugh> It wasn’t _very_ foggy today.
[15:50:19] <alex4nder> I just ordered 10 PCBs for $84 shipped.. and the BoM for each ESC is ~$80
[15:51:01] <djdelorie> saying "it might be foggy" in the UK is like saying "it might snow" in New Hampshire.
[15:51:22] <andypugh> alex4nder: If it’s open-source couldn’t you order your own PCBs for less?
[15:51:29] <XXCoder> it used to be "it might rain" in west washington, but it dont rain as much as it used to in summers now
[15:51:36] <XXCoder> but winter it rains more
[15:51:48] <XXCoder> (spring, winter and fall)
[15:51:49] <alex4nder> andypugh: the $84 PCBs was me ordering them .. it's a 4 layer board
[15:51:49] <djdelorie> yeah, we don't have nearly as much August snow as we used to...
[15:51:59] <andypugh> alex4nder: How big?
[15:53:15] <andypugh> For 4-layer $84 isn’t too bad. Possibly cheaper here, but not by a huge margin: http://www.seeedstudio.com/fusion_pcb.html
[15:54:02] <andypugh> Seeed have basically stopped me even trying to make PCBs. I have found that I can pretty much do something else on a project for 10 days.
[15:55:07] <SpeedEvil> yeah
[15:55:18] <SpeedEvil> For hobby projects, it's rare there is that much of a deadline
[15:55:42] <SpeedEvil> plus - even if there is, you can spend much of that time compensating for crappy DIY PCB
[15:55:44] <alex4nder> andypugh: they're pretty small... I want to say ~1.5"x2.5"
[15:57:35] <JT-Shop> http://gnipsel.com/images/blast-cabinet/Blast%20Cabinet%2030.JPG
[15:57:48] <JT-Shop> http://gnipsel.com/images/blast-cabinet/Blast%20Cabinet%2031.JPG
[15:57:53] <JT-Shop> http://gnipsel.com/images/blast-cabinet/Blast%20Cabinet%2032.JPG
[16:42:55] <Deejay> gn8
[17:29:39] <andypugh> Interesting video. The technique would work for foundry patterns too. https://www.youtube.com/watch?v=XeeSsmsm9h0
[17:30:37] <SpeedEvil> https://www.youtube.com/watch?v=znJZ6YhsL0M
[17:30:39] <SpeedEvil> err
[17:30:43] <SpeedEvil> ignore
[17:30:54] <SpeedEvil> copy/paste confusion
[17:32:19] <Tom_itx> 100f
[17:56:54] <alex4nder> SpeedEvil: great vid. thanks.
[17:57:20] <SpeedEvil> I liked andys.
[17:57:35] <alex4nder> er, that was meant for andy
[18:18:22] <Sync> heh neat alex4nder
[18:18:24] <Sync> eh andypugh
[18:19:36] <andypugh> An hour later… Hi
[18:19:59] <Sync> pfft
[18:26:34] <JT-Shop> Tom_itx: at your house?
[18:26:45] <Sync> andypugh: that's what I hate about composite parts all the time, a lot of work goes into the patterns and then you find out that your part does not work :/
[18:28:03] <andypugh> A friend watched it and was full of “I will try that tonight” then realised that 18 minutes of video is probably a good week of sanding, filling, painting and polishing.
[18:30:40] <Sync> well, it is an afternoon, but yeah
[18:32:12] <andypugh> There are a few waits of “several hours” for things to cure.
[18:34:33] <Sync> that depends on your resin system, but yes
[18:34:56] <Sync> I'm usually opting for fast cure resins as there is nothing worse than watching resin cure
[18:36:52] <Sync> and possibly several hundered dollars in resins later, that's also one thing I hate about stuff like that
[18:36:57] <Sync> if you buy it in bulk it is cheap
[18:37:06] <Sync> but small quantities are overly expensive
[18:37:12] <andypugh> The final result at the end of the third video is pretty umpressive.
[18:37:27] <andypugh> (impressive)
[18:38:28] <Sync> yeah, using prepreg is seksi
[18:47:02] <Sync> I never ordered stuff from them but they make great videos
[18:59:01] <Sync> on that note, I just ordered 10kg of pu rubber resin
[18:59:28] <JT-Shop> http://gnipsel.com/recipes/beef/korean-hamburgers.html
[19:02:03] <andypugh> Serious lack of kimchi
[19:03:38] <CaptHindsight> http://www.mos.co.jp/global/ Japanese hamburger chain
[19:04:58] <SpeedEvil> Prepeg is annoyingly more 'in bulk' problems than just about anything else.
[19:05:05] <SpeedEvil> Need to keep it in the freezer even.
[19:06:57] <CaptHindsight> UV cure prepreg requires no refrigeration
[19:08:11] <SpeedEvil> Not seen that. I keep meaning to investigate UV photoinitiators for conventional resins
[19:08:37] <CaptHindsight> won't work with most conventional resins
[19:09:07] <JT-Shop> working on the kimchi, a buddy sent me some of his mom's vegan kimchi and it was good
[19:09:56] <CaptHindsight> by conventional you are probably referring to OH bonds cured by DIMETHYLANILINE,N,N-, MEKP or benzoyl peroxide
[19:10:46] <CaptHindsight> UV uses free radical or cationic curing
[19:12:54] <Jymmm> FREE THE UV from radical tyranny!!!
[19:14:31] * SpeedEvil wonders if he can find his bookmarks
[19:15:29] <SpeedEvil> http://www.alibaba.com/product-detail/PI-TPO-CAS-No-75980-60_60181350980.html - I think
[19:15:38] <SpeedEvil> For polyester/styrene resin
[19:15:55] <SpeedEvil> Though I should not try to comment on this when asleep.
[19:16:10] <CaptHindsight> TPO will work
[19:17:09] <SpeedEvil> I need to get my 'shop' built and waterproof before fuckign with that alas.
[19:17:09] <CaptHindsight> http://www.foresight-chem.com/upload/file/136%20CHIVACURE%20TPO%20DS%20US.pdf
[19:18:52] <CaptHindsight> but styrene is pretty stinky
[19:18:55] <SpeedEvil> meh.
[19:19:05] <SpeedEvil> It is indeed.
[19:19:25] <SpeedEvil> Part of the shop is supplied breathing air and proper extraction.
[19:19:52] <SpeedEvil> Also - nice that it has activity plentiful up to 400nm - so blue LED works just fine
[19:20:30] <CaptHindsight> blu ray 405nm, not blue 260nm
[19:20:44] <CaptHindsight> sorry 460nm
[19:20:49] <SpeedEvil> yes
[19:21:02] <Tom_itx> JT-Shop, yes
[19:22:20] <SpeedEvil> oops
[19:22:27] <CaptHindsight> http://www.epoxyproducts.com/chemistry.html#part1 good overview
[19:22:40] <SpeedEvil> yes, for some reason I forgot that it was 450nm most LEDs start out at
[19:22:48] <SpeedEvil> - probably as I have a DVD laser
[19:22:53] <SpeedEvil> Thanks!
[19:25:36] <SpeedEvil> yeah - checking - LEDs are going to have non-zero activity - it's well under 10% (though not 0) on the overlaps)
[19:25:56] <SpeedEvil> Probably to the point that LASER is actually cheaper per watt
[19:27:01] <andypugh> Green laser pointer?
[19:27:24] <SpeedEvil> Basically zero.
[19:31:59] <SpeedEvil> ^please ignore the above comments
[19:32:08] <CaptHindsight> put it in a sunny window, set it and forget it
[19:32:16] <SpeedEvil> I was confused by digikey splitting out UV emitters into a seperate category
[19:36:02] <CaptHindsight> storms a brewin here, time to hunker down
[19:56:25] <Tom_itx> how rude...
[19:56:50] <Tom_itx> zlog
[19:57:25] <Tom_itx> http://www.intellicast.com/Local/WxMap.aspx
[19:57:37] <Tom_itx> CaptHindsight, map says you'll be fine
[22:01:54] <roycroft> well, dc braking is all but useless with my vfd
[22:02:10] <roycroft> i can't set it to kick in above 10Hz, and the motor is almost stopped already by then
[22:02:20] <roycroft> but it does stop quite instantly when it does reach 10Hz
[22:02:44] <roycroft> i guess i need an external resistor pack to dump to if i want to stop fast
[22:03:59] <Tom_itx> generally that's what is done i think
[22:04:11] <Tom_itx> or a heating element etc
[22:04:22] <roycroft> well a heating element is an external resistor :)
[22:04:29] <roycroft> but yes
[22:04:38] <roycroft> it was suggested earlier today that i might try dc braking
[22:04:39] <roycroft> so i did
[22:05:01] <Tom_itx> that energy has to go somewhere
[22:05:06] <roycroft> yup
[22:05:13] <roycroft> with dc braking it goes back to the motor
[22:05:34] <roycroft> and can overheat the motor if applied too frequently and too aggressively
[22:05:48] <roycroft> i'm not looking for instant stop
[22:05:59] <roycroft> but i don't like the 30 seconds it takes to stop now
[22:06:06] <roycroft> 3-5 seconds would be fine
[22:06:48] <roycroft> instant stop could be a good safety feature, but it would be a rather intense action - hard on the equipment
[22:09:41] <roycroft> i just found one for $17.95 that meets my specs exactly, and ships from the us
[22:10:18] <roycroft> although i'm pretty sure it is not made here
[22:10:41] <roycroft> the description says "can be used in the atrocious environment."
[22:19:29] <enleth> roycroft: FYI a small - less than 1000W - travel kettle is going to be a good braking resistor for your configuration if you just want to test it without buying one
[22:20:08] <enleth> a regular kettle would have too low a resistance
[22:20:24] <enleth> fill with water of course
[22:21:32] <enleth> you can probably get a 600W kettle for $10 at the nearest big store
[22:27:22] <roycroft> and i can make tea with it
[22:27:48] <roycroft> i just bought that $18 one though
[22:27:52] <roycroft> hopefully it will work ok
[22:28:13] <roycroft> it's not a terribly complex thing
[22:28:22] <roycroft> just a big resistor on a hunk of aluminium
[22:35:42] <Polymorphism> the ballnut is nothing more than a paperweight to me now
[22:35:47] <Polymorphism> I attempted to repair it and failed
[22:35:53] <Polymorphism> inquiring now about the cost of a replacement
[22:36:56] <Tom_itx> what's wrong with it?
[22:37:13] <Polymorphism> the balls are all out of it
[22:37:21] <Tom_itx> so put them back
[22:37:31] <Polymorphism> I tried to, wasn't able
[22:37:52] <Polymorphism> aftI tried to feed them in while turning it, and also packinmg them intop the tracks with grease and then screwing it on
[22:38:10] <Polymorphism> after a few hours and getting cut on the threads, I left the mess of grease and blood and steel
[22:39:06] <Tom_itx> i don't recall why you took it apart to begin with
[22:40:04] <Polymorphism> well when I tried to install the bearings on the ends of the screw, I couldnt get them on
[22:40:23] <Polymorphism> when one was partway on I unscrewed the nut slightly to remove it
[22:40:33] <Polymorphism> before I realized it was a mistake, 9 balls were out of place, and fell out
[22:40:39] <Polymorphism> it didnt sound the same after that
[22:51:28] <Erant> Well fuck
[22:51:39] <Erant> My 3 phase converter just blew.
[22:51:51] <Erant> All the IGBTs blew.
[22:51:59] <Polymorphism> That blows.
[22:52:18] <Tom_itx> Polymorphism did yours have external return tubes?
[22:52:40] <Polymorphism> Tom_itx, it has 3 plastic pieces that can be removed by pushing them inside and then out
[22:52:55] <Polymorphism> I think they are the returns
[22:53:53] <Tom_L> https://www.youtube.com/watch?v=87AOmePoh_E
[22:56:31] <Tom_itx> did you take them out?
[22:56:39] <Tom_itx> if so, maybe they're backwards
[23:01:37] <Polymorphism> I took them out one at a time, to inspect, some had balls in them. they appeared to be reversible but I tried to put them back the same
[23:01:57] <Tom_L> https://www.youtube.com/watch?v=GXdt5M8ZeoE
[23:02:16] <Tom_itx> one of those should be similar to yours
[23:03:48] <Tom_itx> should be no blood involved
[23:03:53] <Polymorphism> I tried that second vid, I'll try again following along before I order a replacement
[23:03:59] <CaptHindsight> I alternate between left hand and right ball bearings in my ballscrew nuts
[23:04:17] <CaptHindsight> this keeps them snug against each other :)
[23:06:10] <Tom_itx> the video indicates no blood removal
[23:06:38] <CaptHindsight> and bidirectional grease
[23:07:04] <Tom_itx> charged particles?
[23:09:06] <CaptHindsight> I'm not sure how they pay for them
[23:09:16] <enleth> just replaced the power supply in the Bridgeport's original control as the old one has been haphazardly repaired by the previous owner and I didn't like it
[23:09:31] <Polymorphism> it was the razor sharp edge of the end of the ballscrew
[23:09:37] <Polymorphism> as I was turning it
[23:10:14] <enleth> I had to adapt a chinese modular power supply by adding a delay activated "power OK" output to signal the control to turn on, otherwise it would crap out trying to turn on as soon as 5V was present, while +/-15V wasn't yet up to spec
[23:10:59] <enleth> about a second of delay was sufficient
[23:22:32] <roycroft> i think it's about time for ryan to gavel in again
[23:22:41] <roycroft> so the chanting will begin again
[23:22:54] <roycroft> ack, mischan
[23:23:02] <Tom_L> https://www.youtube.com/watch?v=K3i-Ecb698g
[23:23:14] <Tom_itx> somewhat informative i though
[23:23:15] <Tom_itx> t
[23:29:35] <Polymorphism> not a bad vid, mine seems to work differently I think