#linuxcnc | Logs for 2014-10-22

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[00:00:03] <zeeshan> you could account for lost steps?
[00:00:10] <zeeshan> if = of
[00:00:13] <ssi> lots of benefits
[00:00:40] <ssi> it basically becomes a 50 pole low speed high torque AC servo
[00:00:48] <ssi> 2 phase
[00:00:56] <ssi> we were talking about this the other day in here
[00:00:59] <zeeshan> does that change the fact it has 200 discrete steps per rev?
[00:01:03] <ssi> stiffer axis, less idle current
[00:01:14] <ssi> no
[00:01:21] <zeeshan> so its still less accurate than aservo
[00:01:31] <ssi> why would it be less accurate than a servo?
[00:01:40] <ssi> my servos have 24 discrete "steps per rev"
[00:01:50] <roycroft> if you have a feedback loop, i.e. the encoder, should it not be able to detect inaccuracy and compensate?
[00:01:54] <ssi> yep
[00:01:56] <zeeshan> o
[00:02:07] <zeeshan> so why dont people do it more often!
[00:02:10] <zeeshan> steppers ftw!
[00:02:28] <zeeshan> massive torque loss at high speeds?
[00:02:43] <roycroft> and if the motor still does microstepping one should be able to get granularity better than a ten thousandth
[00:02:50] <zeeshan> roycroft: false
[00:03:01] <zeeshan> microstepping doesnt increase the accuracy of your stepper
[00:03:01] <ssi> steppers won't run as fast as servos
[00:03:10] <ssi> roycroft: motors don't really "do" microstepping
[00:03:11] <ssi> the drives do
[00:03:19] <ssi> and the servo loop is going to give you something like microstepping
[00:03:31] <zeeshan> you can only ever be sure your accuracy is .28 degrees
[00:03:37] <zeeshan> or wahtever that number is that you calculate
[00:03:38] <ssi> which is basically flipping current between the two phases to hold an intermediate position
[00:03:39] <zeeshan> 200 / 360
[00:03:41] <ssi> same as servo jitter
[00:04:05] <roycroft> hmm
[00:04:06] <zeeshan> i didnt understand this concept for a couple of weeks
[00:04:08] <zeeshan> it took a while
[00:04:10] <zeeshan> but i finally got it
[00:04:14] <zeeshan> after i watched an animation
[00:04:23] <roycroft> so the only way to get finer granularity is to use a belt drive and differing sized sheaves
[00:04:28] <zeeshan> yea
[00:04:29] <roycroft> which would slow the thing down
[00:04:35] <zeeshan> or different pitch screw
[00:04:40] <roycroft> right
[00:04:50] <roycroft> i have 5mm pitch screws
[00:05:04] <zeeshan> slow is all defined relative to who you're talking to
[00:05:05] <roycroft> which seem to be the common "finer" screw pitch
[00:05:08] <zeeshan> ssi likely thinks 100ipm is slow
[00:05:11] <zeeshan> i think 100 ipm is fast
[00:05:14] <ssi> hell yes it's slow
[00:05:24] <zeeshan> you can get a lotta stuff done at 100i pm on a lathe
[00:05:25] <zeeshan> no problem
[00:05:31] <zeeshan> but thats the thing
[00:05:33] <zeeshan> thats pretty much the limit
[00:05:36] <MrSunshine> my machine goes 4500mm/min and thats a bit to slow for rapids :)
[00:05:37] <zeeshan> 100-200 ipm
[00:05:41] <MrSunshine> i would like to atleast double that
[00:05:51] <ssi> MrSunshine: yeah that's pretty slow
[00:05:53] <MrSunshine> tho its a router but
[00:05:55] <zeeshan> 177 ipm
[00:05:58] <zeeshan> for imperialists
[00:06:13] <zeeshan> i was calculating the ideal feedrates
[00:06:15] <ssi> MrSunshine: my 50x50" gantry plasma machine does 15m/min
[00:06:16] <ssi> :)
[00:06:17] <zeeshan> for carbide cuttings in aluminum
[00:06:23] <zeeshan> its close to 100 ipm for aluminum
[00:06:24] <MrSunshine> ssi, yeah ... thinking of buying either simple servos or closed loop steppers to double that =)
[00:06:31] <zeeshan> to infinite
[00:06:34] <zeeshan> depending on machine rigidity
[00:06:54] <MrSunshine> ssi, well ... i would guess your X/Z weights alot less than mine to stop ... im having problems at fast stops with weight flexing the table :P
[00:06:57] <ssi> infinite, or infinitesimal?
[00:06:57] <zeeshan> i dont understand how closed loop steppers
[00:07:00] <zeeshan> will increase your speed
[00:07:04] <zeeshan> nah ssi, infinite
[00:07:13] <ssi> MrSunshine: yeah it's a fairly light gantry
[00:07:15] <ssi> and there's no cutting forces
[00:07:16] <zeeshan> lemme to the conversion for a sec
[00:07:23] <MrSunshine> zeeshan, yes .. more speed and no losing track of position
[00:07:32] <zeeshan> at our mmri machining lab
[00:07:36] <zeeshan> these guys machine aluminum at
[00:07:37] <zeeshan> 286 089.239 inches per minute
[00:07:44] <zeeshan> 286,089 ipm
[00:08:09] <zeeshan> that works out to 436km/h
[00:08:09] <ssi> hah
[00:08:17] <zeeshan> 270mph
[00:08:24] <zeeshan> most cars cant go that fast
[00:08:25] <zeeshan> lol
[00:08:28] <ssi> zeeshan: why don't you work out some preliminary feeds and speeds for my vmc for me
[00:08:35] <zeeshan> fak you
[00:08:38] <zeeshan> you have the 2 formulas
[00:08:42] <ssi> haha
[00:08:46] <zeeshan> rpm = 4*cutting speed / diameter
[00:08:47] <ssi> I'm busy writing verilog
[00:08:56] <MrSunshine> https://www.facebook.com/photo.php?fbid=10152153395773648&l=561b193511 if that picture works .. thats my X/Z ... solid iron :P
[00:08:58] <zeeshan> feedrate = rpm * number of teeth * feed per tooth
[00:09:05] <MrSunshine> except the bearing blocks that are alu =)
[00:09:24] <zeeshan> MrSunshine: nice looking machine!
[00:09:31] <zeeshan> your own design?
[00:09:49] <ssi> zeeshan: what do you use for aluminum speeds? chart I'm looking at says 165sfm
[00:09:51] <MrSunshine> took a bit from mechmate .. the rails etc but other than that ive built it from my minds eye =)
[00:09:55] <zeeshan> ssi thats too slow
[00:09:58] <zeeshan> even for hss
[00:10:01] <zeeshan> hss you should be at 300sfm
[00:10:04] <MrSunshine> using an angle grinder, drill press and hand machines =)
[00:10:07] <zeeshan> for carbide anywhere from 600-2000sfm
[00:10:16] <zeeshan> you might even be able to do 3000
[00:10:20] <zeeshan> your machine is really rigid
[00:10:22] <ssi> yeah
[00:10:26] <ssi> well i'm gonna focus on hss initially
[00:10:27] <zeeshan> whats the top speed though
[00:10:30] <ssi> 10k
[00:10:39] <zeeshan> yea you'll pretty much be limited by that
[00:10:49] <ssi> yeah well that's a pretty good limit :P
[00:10:54] <zeeshan> so if you look at the feedrate formula
[00:10:56] <zeeshan> notice how rpm is in there
[00:10:59] <ssi> yeah I know
[00:11:19] <zeeshan> usually people like to use 3 flute cutters in aluminum
[00:11:23] <zeeshan> which toastydeath explained why
[00:11:33] <ssi> so for 300sfm, a half inch endmill would be 2400rpm
[00:11:36] <ssi> seems slow
[00:11:37] <zeeshan> its the most optimal geometry between metal removal and chip clearance
[00:11:50] <zeeshan> that sounds right for hss
[00:12:14] <zeeshan> you might be able to push it to 500 sfm
[00:12:17] <zeeshan> if you flood it with coolant
[00:12:31] <ssi> so 108ipm for a .015" chipload at 2400rpm
[00:12:34] <toastydeath> ssi, full slot or what
[00:12:42] <ssi> toastydeath: oh I dunno this is just mental math
[00:12:44] <zeeshan> i woke toastydeath up
[00:12:45] <zeeshan> :)
[00:12:50] <ssi> clearly :)
[00:12:51] <toastydeath> you did
[00:13:06] <toastydeath> hss is heat limited to 500-700 sfm in alum
[00:13:15] <toastydeath> depending on how the chips are coming off and clearing
[00:13:18] <ssi> toastydeath: just trying to get a ballpark idea of what sorts of feeds and speeds look sane for my machine, which isn't running yet and likely won't be for some weeks at the rate I keep killing hardware
[00:13:26] <toastydeath> how big is your machine
[00:13:39] <ssi> it's a 20x20x20" vmc, 9000lb
[00:13:41] <ssi> pretty rigid
[00:13:44] <ssi> 35mm linear rails
[00:13:51] <ssi> 10k 15hp spindle
[00:13:58] <zeeshan> you're notr gonna have any trouble raping aluminum
[00:14:00] <zeeshan> :)
[00:14:02] <zeeshan> at those speeds
[00:14:04] <ssi> yeah I'm sure
[00:14:13] <toastydeath> rule of thumb on a big machine is to keep the chip load as high as possible, but under about 2% of the diameter of the endmill
[00:14:17] <toastydeath> until you get into facemills
[00:14:23] <ssi> 2%?
[00:14:24] <toastydeath> endmills, the 2% rule is a good rule of thumb
[00:14:30] <ssi> oh the chipload under 2%
[00:14:36] <XXCoder> ssi: by tme you're adding cnc mill to your router it may be too far. ;)
[00:14:37] <ssi> so .010" for a 1/2" cutter?
[00:14:41] <toastydeath> ya
[00:14:44] <ssi> makes sense
[00:14:52] <toastydeath> and that's pushing it
[00:14:57] <zeeshan> if youre using indexable end mills
[00:14:59] <zeeshan> they come with specs too
[00:15:09] <ssi> I'll likely be using mostly hss endmills for starters
[00:15:10] <zeeshan> sfm and a_p and ipr
[00:15:10] <toastydeath> 1% is a good margin of safety for most sizes
[00:15:16] <toastydeath> the bigger it is, the harder you can run it
[00:15:31] <toastydeath> If you are NOT slotting
[00:15:49] <ssi> is that 2% figure for full slot?
[00:15:50] <toastydeath> you then calculate the hp requirement for the max amount of remval
[00:15:52] <toastydeath> nooooo
[00:15:56] <ssi> ok
[00:15:57] <toastydeath> full slot you have to back off quite a deal
[00:16:09] <MrSunshine> aparently 3 phase steppers have higher high rpm torque than bipolar ?
[00:16:19] <ssi> MrSunshine: 3 phase steppers are servos :)
[00:16:21] <MrSunshine> or two phase i ment
[00:16:37] <MrSunshine> ssi, nah ... not relay ? 1.2 deg step angle ... just like any ordenary stepepr? =)
[00:16:39] <MrSunshine> stepper
[00:16:51] <MrSunshine> tho mine has 1.8 degree (two phase)
[00:17:02] <MrSunshine> friends got 3 phase and they are 1.2 degree step angle
[00:17:05] <toastydeath> ssi, with aluminum and a big machine like that, I'd stay away from endmills for roughing
[00:17:07] <toastydeath> they'll hold you back
[00:17:16] <ssi> toastydeath: facemills instead?
[00:17:20] <toastydeath> definitely
[00:17:23] <toastydeath> get one with straight sided walls
[00:17:24] <XXCoder> magic
[00:17:30] <zeeshan> toastydeath: what do you think about indexable end mills
[00:17:34] <toastydeath> they're nice
[00:17:34] <zeeshan> thats what we use at school
[00:17:36] <ssi> I'll get there
[00:17:37] <zeeshan> for high speed machining
[00:17:43] <toastydeath> more rigid than a helical endmill
[00:17:48] <ssi> what I have right now is a bunch of ER32 collets and a drill chuck
[00:17:58] <ssi> but I'll try to invest in facemills
[00:18:04] <toastydeath> you only really need one
[00:18:07] <zeeshan> tehres so many parameters to consider though
[00:18:10] <zeeshan> rigidity of your setup
[00:18:15] <ssi> I have one downstairs but I think it's an R8
[00:18:18] <ssi> might be straight shank
[00:18:18] <zeeshan> how much tool stickout you need to have
[00:18:20] <zeeshan> etc
[00:18:47] <toastydeath> zeeshan, the tool is usually the weak link in the kinematic chain
[00:18:56] <zeeshan> lies
[00:19:01] <zeeshan> im kidding
[00:19:02] <zeeshan> i believe you
[00:19:07] <zeeshan> its just when youre machining thin wall parts
[00:19:12] <zeeshan> the tables turn :p
[00:19:21] <zeeshan> your thin wall part is the floppy noodle
[00:19:27] <toastydeath> and all else equal, an indexible endmill is gonna be more rigid
[00:19:36] <zeeshan> that's good to know
[00:19:36] <toastydeath> sure, but you don't machine thin wall parts like you'd machine other parts
[00:19:40] <zeeshan> i haven't even used them on t he bridgeport
[00:19:44] <zeeshan> cause it kept shattering inserts
[00:19:47] <zeeshan> cause its a loose pos
[00:19:54] <ssi> https://pbs.twimg.com/media/B0hrO_EIUAEN4IU.jpg:large
[00:19:56] <toastydeath> they make roughing grades of carbide
[00:20:05] <ssi> I got four short ER chucks, two 4", and one 6"
[00:20:07] <ssi> plus the 1/2" chuck
[00:20:11] <toastydeath> you have to get the right kind of carbide for the task - something good at shock, but low heat tolerance
[00:20:11] <ssi> and collets
[00:20:12] <zeeshan> ssi nice :D
[00:20:17] <zeeshan> whats that lpng one
[00:20:19] <zeeshan> *long
[00:20:23] <ssi> 6" ER32
[00:20:36] <zeeshan> toastydeath: yea so many grades
[00:20:40] <zeeshan> i usually refer to charges
[00:20:43] <zeeshan> *charts
[00:20:55] <zeeshan> i still use general grade for aluminum
[00:21:00] <zeeshan> but i've seen what uncoated
[00:21:08] <zeeshan> positve inserts do to aluminum on production machines
[00:21:11] <zeeshan> it annhilates it
[00:21:17] <toastydeath> ya
[00:21:31] <toastydeath> polished, high rake inserts on alum have no effective sfm limit
[00:21:41] <ssi> yeah I've run some of those inserts on the lathe
[00:21:42] <zeeshan> you read the comment earlier right?
[00:21:43] <ssi> holy balls they move metal
[00:21:49] <zeeshan> the research machine shop guys
[00:21:51] <XXCoder> 100M sfm
[00:21:56] <zeeshan> have cut through aluminum
[00:22:03] <zeeshan> at 286,089.239 inches per minute
[00:22:24] <zeeshan> the process is highly guarded
[00:22:45] <toastydeath> here's an endmill from back at my old shop
[00:22:51] <toastydeath> http://i2.photobucket.com/albums/y5/toastydeath/DSC_4255.jpg
[00:23:04] <zeeshan> that looks.............
[00:23:05] <zeeshan> expensive
[00:23:10] <ssi> yessss
[00:23:19] <toastydeath> CAT-50 roughing endmill
[00:23:25] <XXCoder> zeeshan: worker has to work on part with 4 guards around him or her. it's THAT guarded. ;)
[00:23:31] <XXCoder> damn thats big
[00:23:33] <zeeshan> XXCoder: lol
[00:23:34] <toastydeath> http://i2.photobucket.com/albums/y5/toastydeath/DSC_4260.jpg
[00:23:48] <zeeshan> i count 10 flutes
[00:23:54] <zeeshan> i can just imagine the speeds that thing runs at
[00:24:02] <toastydeath> ...not very fast
[00:24:04] <zeeshan> really?
[00:24:08] <toastydeath> it's hss
[00:24:10] <zeeshan> oh
[00:24:11] <toastydeath> and giant
[00:24:18] <zeeshan> looks like a 2" cutter
[00:24:18] <toastydeath> you run roughing endmills as slow as possible
[00:24:35] <zeeshan> lol @ your maple 11
[00:24:36] <zeeshan> cd
[00:24:39] <zeeshan> :D
[00:24:42] <XXCoder> toasty I wish it was at my work. its damn scary for roughing for some parts
[00:24:48] <XXCoder> machine vibrates so hard
[00:25:14] <zeeshan> damnit
[00:25:21] <toastydeath> I love the sound of roughing
[00:25:23] <zeeshan> toastydeath's photobucket is password protected
[00:25:26] <zeeshan> access denied
[00:25:28] <toastydeath> DENIED
[00:25:32] <toastydeath> it's from like 7 years ago or some shit
[00:25:44] <toastydeath> i don't use it, i just remembered that i uploaded pix of that
[00:25:48] <ssi> toastydeath: when I start actually running this thing I'm probably going to want to pick your brain a lot :)
[00:25:59] <zeeshan> fak you ssi
[00:25:59] <toastydeath> no probs
[00:26:01] <zeeshan> i know machining
[00:26:01] <zeeshan> die
[00:26:05] <zeeshan> no respect for z
[00:26:06] <zeeshan> :[
[00:26:09] <ssi> zeeshan: you know formulas
[00:26:12] <ssi> toasty knows machining :)
[00:26:20] <zeeshan> ive manual machined a lot!
[00:26:32] <XXCoder> toasty is that GIANT rough em attached to that cone thingy or is it made together? I dont think it would be connected by some 3/4 in shaft or something
[00:26:42] <ssi> looks like one piece to me
[00:26:48] <toastydeath> XXCoder, endmills that big have the taper ground into the endmill itself
[00:26:56] <toastydeath> it is one piece
[00:26:56] <XXCoder> makes sense I suppose
[00:26:59] <XXCoder> easier.
[00:27:03] <XXCoder> and stronger too
[00:27:35] <toastydeath> endmills like that are for aerospace shit
[00:27:58] <ssi> I love aerospace shit :P
[00:28:07] <XXCoder> oh I guessed his password
[00:28:10] <XXCoder> its cncsucks
[00:28:18] <toastydeath> hahahaha
[00:28:25] <zeeshan> LOL
[00:28:28] <zeeshan> seriously?
[00:28:31] <toastydeath> hunter9
[00:29:07] <XXCoder> heh
[00:29:39] <toastydeath> oh damn i have pictures of a fucking insane friend i used to have here
[00:29:46] <toastydeath> she was batshit insane and i guess still is
[00:29:51] <toastydeath> this is a trip down memory lane
[00:30:23] <ssi> my favorite kind
[00:30:24] <XXCoder> old arcives do that
[00:30:46] <XXCoder> I have pictures at one site thats probably teenager now :P
[00:30:58] <XXCoder> 14 years or so
[00:31:04] <XXCoder> some even earlier at 1998 or so
[00:31:05] <toastydeath> back before she fucked her hair up and tries to look like she's as old as possible
[00:31:14] <toastydeath> so she looks like she's mid-40s now
[00:31:21] <toastydeath> and dresses like a grandmother
[00:31:30] <toastydeath> http://i2.photobucket.com/albums/y5/toastydeath/kate-wet.jpg
[00:31:34] <XXCoder> wild guess, bad break and want to stop dating
[00:31:43] <toastydeath> nope, never dated
[00:31:44] <zeeshan> haha
[00:31:59] <XXCoder> with someone else. never said was you :)
[00:32:04] <toastydeath> oh, no
[00:32:13] <toastydeath> she has a continual string of the worst possible people she could find to date
[00:32:25] <toastydeath> her first boyfriend was over the top emotionally and physically abusive
[00:32:30] <toastydeath> second boyfriend was a pedophile and into scat
[00:32:52] <toastydeath> third boyfriend was an indian guy who worked at a gas station who didn't actually speak english, like, could not understand what she said and she could not understand him
[00:32:55] <roycroft> eew and eew
[00:33:14] <zeeshan> ssi
[00:33:20] <ssi> wat
[00:33:20] <zeeshan> i found this massive tool haul
[00:33:21] <zeeshan> http://i130.photobucket.com/albums/p252/turbozee84/621C9BAB-05D8-401D-8F83-65A9321A48A0_zpsqciqb13o.jpg
[00:33:23] <XXCoder> crazy.
[00:33:26] <toastydeath> fourth boyfriend was a basement-dweller who had a giantess fetish and was also abusive (she's like 5'1"
[00:33:28] <zeeshan> notice one of the face mills
[00:33:30] <zeeshan> round inserts
[00:33:37] <zeeshan> uses a lot of power to machine with it
[00:33:45] <zeeshan> but at least you can turn the inserts slightly a bit
[00:33:49] <zeeshan> given they didnt explodfe
[00:33:55] <ssi> I have a cnmg facemill
[00:33:58] <ssi> I think it's five inserts
[00:33:59] <toastydeath> those actually leave a nice surface finish
[00:34:03] <ssi> and you can use four or even eight sides on them
[00:34:15] <zeeshan> on cnmg usually you use 4 sides
[00:34:19] <zeeshan> the other 4 dont really get used
[00:34:22] <zeeshan> unless you have a fancy cutter
[00:34:54] <zeeshan> toastydeath: unfurtonately again
[00:34:55] <zeeshan> the bridgeport
[00:34:57] <zeeshan> could not handle it
[00:35:00] <XXCoder> well time to make and collect Zs. night all
[00:35:02] <toastydeath> oh, lord no.
[00:35:07] <toastydeath> do not use that on a bridgeport
[00:35:19] <XXCoder> do use that bigass mill though LOL
[00:35:23] <ssi> sigh
[00:35:31] <ssi> I have no idea why my verilog isn't working
[00:35:35] <ssi> but it's making me extremely sad
[00:35:40] <zeeshan> what is a verilog
[00:35:45] <zeeshan> some power supply?
[00:35:52] <ssi> hdl
[00:35:56] <zeeshan> oh
[00:36:54] <ssi> I guess that means it's bedtime
[00:37:06] <ssi> murdered my hardware for the night and made little progress in verilog
[00:37:35] <zeeshan> tomorrow will be a better day!
[00:37:39] <ssi> DOUBT IT
[00:37:57] <ssi> what do you suppose I'll blow up tomorrow?
[00:38:05] <zeeshan> nothing
[00:38:17] <ssi> don't be such a pessimist
[00:40:02] <ssi> oh well, I have some contract work to do this week
[00:40:06] <ssi> I guess the mill can wait a few days
[00:43:56] <zeeshan> haha
[00:44:00] <zeeshan> im going through my old pics
[00:44:02] <zeeshan> http://i130.photobucket.com/albums/p252/turbozee84/garage.png
[00:44:03] <zeeshan> LOL
[00:44:05] <zeeshan> yea..
[00:44:18] <zeeshan> garage looks nothing like that anymore
[00:44:19] <zeeshan> haha
[01:06:58] <ssi> hm I had a wacky idea
[01:07:41] <ssi> I was talking earlier about making the next revision of my converter board have some ADs on it and RS422, and I could make it a smart serial host for current and velocity reporting
[01:07:46] <ssi> well what if I went even further
[01:08:23] <ssi> and made it its own encoder counter and analog driver, and basically gave it all the hardware it needs to be the servo interface portion of a 7i77 for one servo
[01:08:59] <ssi> so it'd be a piggyback board that mounts to the bottom of the drive, has a connector to interface with the drive, and then a single cat5 cable back to a 7i74
[01:10:07] <ssi> system would be something like 5i25->7i74, then sserial to N of my boards, and sserial to a 7i84
[01:10:32] <ssi> would greatly simplify wiring
[02:07:31] <Deejay> moin
[02:20:54] <Loetmichel> mornin'
[06:17:29] <__rob> hello
[06:17:58] <__rob> has anyone got any recomendations on a resonable priced driver board and stepper drivers from ebay
[06:18:26] <__rob> was looking at an "all in one" job like this
[06:18:27] <__rob> http://www.ebay.co.uk/itm/3-Axis-CNC-Stepper-Motor-Driver-Board-Controller-TB6560-/351197111339?pt=UK_BOI_Industrial_Automation_Control_ET&hash=item51c4faa42b
[06:18:47] <__rob> or separate controller and drivers like this..
[06:18:47] <__rob> http://www.ebay.co.uk/itm/CNC-Kit-4-Axis-CNC-Breakout-Board-4-TB6600HG-Stepper-Driver-Controller-5A-/191347028643?pt=UK_BOI_Industrial_Automation_Control_ET&hash=item2c8d2bf2a3
[06:20:14] <__rob> not tried either so I dont know the pros and cons
[06:20:58] <archivist> I use parts from arc euro trade in leicester
[06:20:58] <Hawku> do not use TB6560
[06:21:25] <__rob> what would you suggest as an alternative
[06:21:29] <jthornton> is this for a toy or a router or a real machine?
[06:21:40] <__rob> well, for converting a £1000 proxxon one
[06:21:48] <__rob> and a £900 proxxon lathe
[06:22:07] <jthornton> are they CNC now or manual?
[06:22:14] <__rob> manual
[06:22:21] <__rob> I've made the nema23 mountings though
[06:22:36] <jthornton> converted to ball screws?
[06:22:37] <__rob> and got some alright nema23 motors
[06:22:51] <__rob> the motor is just driving the lead screw directly
[06:23:02] <__rob> with a coupler
[06:23:40] <jthornton> have you done the torque and speed calculations on your setup?
[06:23:51] <__rob> no
[06:24:35] <__rob> but as far as torqe, these motors should be absolutely fine
[06:24:38] <__rob> its a micro mill
[06:24:42] <__rob> effectively
[06:24:51] <Hawku> mf70?
[06:24:55] <__rob> 230
[06:25:02] <jthornton> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Mechanical_Spreadsheet
[06:25:26] <__rob> http://www.axminster.co.uk/proxxon-ff-230-micro-mill
[06:26:06] <jthornton> that is tiny
[06:26:20] <__rob> yea
[06:26:28] <__rob> perhaps the nema 23's are too big
[06:26:43] <archivist> too small for me for my small stuff
[06:26:52] <jthornton> I think cncbasher is fond of the leadshine drives
[06:27:10] <__rob> so whats wrong with the TB6560 ?
[06:27:13] <archivist> I use leadshine but not the copies
[06:27:17] <__rob> this mill is 1mm per revolution
[06:27:30] <__rob> for the x/y
[06:27:50] <jthornton> well they burn up easy IIRC
[06:28:20] <__rob> ok
[06:28:21] <Hawku> __rob: 200 or 400 steps per revolution steppers?
[06:28:24] <__rob> 200
[06:28:35] <jthornton> do you have a computer picked out and have done the latency test on it?
[06:28:44] <__rob> I have some rackmount intel atoms
[06:28:50] <__rob> that will purely run this
[06:28:52] <Hawku> hmm
[06:29:07] <Hawku> 1/8 microstepping that would be 1600 steps per mm
[06:29:19] <__rob> yea, that sounds pretty good, no ?
[06:29:32] <Hawku> TB6560 datasheet says 30µs clock speed
[06:30:30] <archivist> 1/4 for more speed
[06:30:43] <__rob> so really, this whole project is a means to an end
[06:30:54] <__rob> I just want to be able to make some parts for the actual project
[06:30:56] <__rob> :)
[06:31:04] <__rob> so as long as its 'good enough' - i'm happy
[06:31:22] <__rob> its seems that with such small x/y travel, error will be reduced
[06:31:24] <Hawku> just skip the TB6560
[06:31:27] <__rob> right
[06:31:45] <__rob> seems to be the choice of board on ebay
[06:31:49] <archivist> small travel often means hard to use
[06:31:58] <__rob> how so ?
[06:32:05] <__rob> just because you cant get the speeD ?
[06:32:15] <jthornton> so the parts you have to make are 3-D or 2-D?
[06:32:20] <archivist> you cannot reach all round a job
[06:32:25] <__rob> bit of both
[06:32:34] <__rob> mostly 2d
[06:32:53] <__rob> I'm happy to have to move the part
[06:33:04] <__rob> main issue is not being able to cut curves by hand
[06:34:20] <__rob> TB6600HG any better?
[06:34:24] <__rob> http://www.ebay.co.uk/itm/DIY-CNC-Kit-4-Axis-New-Breakout-Board-Kit-4-TB6600HG-Stepper-Driver-Controller-/351184405254?pt=UK_BOI_Industrial_Automation_Control_ET&hash=item51c438c306
[06:34:27] <__rob> something like this
[06:35:40] <__rob> the alternative is buy one of the knock off smooth step jobs
[06:35:42] <archivist> those look like chines copy of the leadshine drives,
[06:35:47] <__rob> again, no idea how good they are
[06:35:49] <Hawku> TB6600 datasheet says 2.2µs clock pulse
[06:36:13] <Hawku> so, that is much better than TB6560, but i don't know about anything else
[06:36:36] <__rob> Hawku : even at 30us thats 33khz ?
[06:36:38] <__rob> thats ok no ?
[06:37:03] <__rob> or too slow ?
[06:37:57] <__rob> £70 all in
[06:38:05] <__rob> for that TB6600
[06:39:13] <__rob> deal or no deal ?
[06:39:32] <Hawku> 30
[06:39:45] <Hawku> 30µs is about 15khz
[06:40:14] <Hawku> i think that 30µs is minimum pulse length
[06:40:15] <__rob> ohh so the 30 was the duty cycle
[06:40:21] <Hawku> yeah
[06:40:22] <__rob> rather then the period
[06:40:24] <__rob> ok
[06:40:39] <__rob> so thats far too slow is what your saying?
[06:40:42] <archivist> adjustable anyway
[06:41:17] <jthornton> I don't think speed is going to be an issue on your tiny machines with leadscrews
[06:41:27] <Hawku> if the 15khz is the absolute maximum, i wouldn't try to drive that with 15khz step speed
[06:41:32] <__rob> yea
[06:41:37] <archivist> pulse width is hardly a worry just adjust
[06:41:50] <__rob> well ther TB6600 as you say is 200khz
[06:41:54] <__rob> max for fCLK
[06:41:59] <Hawku> yes
[06:42:11] <__rob> ok, so that actually looks ok
[06:42:17] <__rob> the above url
[06:42:34] <__rob> assuming the actual drivers are decent enough
[06:43:34] <jthornton> at least they warn you now about "Please SHUT DOWN the power before you plug or unplug the connectors to avoid burning up the board."
[06:46:36] <__rob> so what chips are they actually using on the control board ?
[06:46:57] <__rob> is that pretty much just a parallel interface that routes the signals ?
[06:47:17] <jthornton> so for 77 pounds you just need a power supply to complete the drive part
[06:47:30] <jthornton> you need a parallel port
[06:47:39] <__rob> these intel atoms have that
[06:48:26] <jthornton> just need a 36v power supply to go with that
[06:48:55] <__rob> ok, great
[06:49:04] <__rob> thanks for the adivce guys :)
[06:50:19] <archivist> that manual control addon is in between , not the way linuxcnc works
[06:50:49] <__rob> I'm not getting the addon
[06:51:15] <__rob> without that, I can just use it straight from linux cnc ?
[06:51:21] <__rob> via the parallel port
[06:51:28] <archivist> looks like it
[06:55:49] <jthornton> http://www.ebay.co.uk/itm/600W-36V16-7A-Power-Supply-PSU-For-CNC-Stepper-Motor-Driver-TB6600-M542-M542H-/361083942536?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item541247b688
[07:27:03] <__rob> http://www.cnc4you.co.uk/index.php?route=product/product&path=81&product_id=278
[07:27:06] <__rob> was gonna go with this
[07:28:44] <jthornton> looks more cost effective to me
[07:29:08] <__rob> not very adjustable though
[07:29:20] <__rob> Dont know how low/high I would want to go though for nema23 motors
[07:30:09] <jthornton> you want the highest voltage your drive takes, voltage is power in stepper world
[07:30:24] <jthornton> my nema 23's run at 63v
[07:30:42] <__rob> do your motors get pretty hot ?
[07:31:33] <jthornton> all steppers run hot
[07:36:31] <__rob> one other question actually was the best way to attach to the lead screw
[07:36:45] <__rob> I was just going to use a helical coupler
[07:37:18] <jthornton> a 2-1 belt reduction is the best way
[07:37:26] <jthornton> but the coupler might work
[07:38:47] <__rob> http://www.cnc4you.co.uk/index.php?route=product/product&path=33_61&product_id=307
[07:38:48] <__rob> these things
[07:39:34] <archivist> they have to be dean inline, oldham style do not
[07:39:38] <archivist> read
[07:39:42] <archivist> dead
[07:40:13] <archivist> trying to type past a microscope on the table
[07:40:24] <jdh> they have a category called lovejoy/oldham but they are just lovejoy style
[07:40:24] <__rob> so your saying these aren;t suitable ?
[07:40:39] <jdh> they are ok for low load and will handle a little misalignment
[07:41:07] <archivist> so little that they break after a time
[07:41:08] <__rob> they dont have them in the sized I nee daswell
[07:41:19] <__rob> m8 to 6.35mm
[07:41:46] <archivist> with oldham style you can buy the ends you need
[07:41:52] <__rob> for the Flexible ones, they do say Designed to connect shafts with small misallignment problems or reduce vibration transmission
[07:42:11] <jdh> you probably won't find an m8 one.
[07:43:00] <jdh> get a small one and make it bigger.
[07:43:00] <__rob> ok, well i've milled the mountings from some alluminium section
[07:43:09] <__rob> looks pretty aligned
[07:43:29] <__rob> this is a tiny mill really
[07:43:36] <jdh> how tiny is it
[07:44:17] <archivist> you can get 8-6mm couplers, look on fleabay
[07:44:32] <__rob> 6mm is too small though
[07:44:36] <__rob> its 6.35 on these motors
[07:45:05] <archivist> you can get any to any if you just buy the ends
[07:45:30] <archivist> arc euro supply in parts
[07:46:11] <__rob> ohh right, I just buy both ends
[07:46:32] <__rob> and the plastic bit for the middle
[07:46:33] <__rob> presumably
[07:46:34] <archivist> http://www.arceurotrade.co.uk/Catalogue/Stepper-Motors/Oldham-Couplings
[07:46:46] <__rob> yup, on that page already
[07:47:33] <__rob> no 8's :/
[07:47:50] <archivist> moan at him :)
[07:48:29] <archivist> I use a larger size and sleeve down
[07:49:01] <archivist> or smaller and bore
[07:49:35] <__rob> how does it actually hold together along the axis
[07:49:49] <__rob> the plastic just sits between but it clamps down on that aswell ?
[07:50:41] <archivist> it cannot fall out
[07:51:10] <__rob> on the urls you pasted, along L is what I mean
[07:51:22] <__rob> that can pull apart surely
[07:51:52] <archivist> your mount will stop that
[07:52:43] <Hawku> http://www.ebay.com/itm/8mm-x-6-35-mm-CNC-Flexible-Plum-Coupling-Shaft-Stepper-Motor-D20mm-L30mm-/261620090678?pt=AU_Car_Parts_Accessories&hash=item3ce9c5c736&vxp=mtr
[07:52:50] <jdh> you are going to mount a coupler on the M8 threads? There isn't a turned down section?
[07:53:06] <__rob> its just m8 thread
[07:53:25] <__rob> Does not ship to United Kingdom
[07:53:28] <__rob> Hawku
[07:53:40] <__rob> also, i've waited a month for stuff from china before :/
[07:54:08] <archivist> m8 is a little under, so you need a damned good grip, dont ask me how I know
[07:54:24] <__rob> yea its 7.8 on the calipers
[07:54:28] <jdh> you could get a pair of 6mm or 1/4" and bore. or bore + tap the m8
[07:54:45] <archivist> tap the m8 for best grip
[07:55:28] <__rob> what I dont get is how those hold together, you spin the lead screw, the table doesn't want to move but something has to due to the rotation of the lead screw
[07:55:43] <__rob> surely its easier for the lead screw itself to move rather then the table
[07:55:50] <__rob> and pull apart your coupler
[07:56:09] <jdh> the lead screw is captured, the motor is stationary. what can move?
[07:56:37] <__rob> well in this mill I can spin the lead screw without the table moving
[07:56:38] <archivist> the leadscrew should have its own bearings and support for that direction
[07:56:57] <__rob> and the leadscrew just travels through
[07:57:01] <archivist> you removed something you need!
[07:57:11] <jdh> you are missing the leadscrew bearing mounts
[07:57:17] <archivist> put the end plate back
[07:57:45] <__rob> ok
[07:57:56] <__rob> yea, I've maybe gone to far with something
[07:58:31] <archivist> the encoder here couples onto the thread http://www.collection.archivist.info/archive/DJCPD/PD/2014/2014_09_17_Barber_Colman_cnc/IMG_1830.JPG
[08:00:16] <__rob> hah, awsome
[08:00:35] <__rob> infact an encoder mount is the first thing I wanted to make for this
[08:01:00] <__rob> with this*
[08:01:46] <__rob> http://www.ebay.co.uk/itm/x1-SRJ-JM30C-Coupling-Jaw-Clamp-Various-Sizes-CNC-BF2-SRJ30-/310708427942?pt=LH_DefaultDomain_3&var=&hash=item4857aa5ca6
[08:01:52] <__rob> so thats UK
[08:02:09] <__rob> they offer 7.5 mm
[08:02:13] <__rob> perhaps that would be better
[08:05:18] <__rob> or do you think the 8mm ?
[08:12:01] <archivist> depends on your clamping surface, an 8mm will struggle to clamp 7.8
[08:15:00] <__rob> right, well I'll get a 7.8 bit
[08:15:04] <__rob> and bore a 6mm to size then
[08:18:18] <archivist> or tapping drill size, then tap 8mm will grip on flanks too then
[08:19:26] <__rob> yea, thats nice
[08:19:57] <jdh> or turn the end of the screw down to 6mm
[08:20:44] <archivist> becomes a non reversable mod then
[08:21:09] <__rob> I'm also planning to put the existing hand wheels on the other side of the stepper
[08:21:10] <__rob> anyway
[08:21:15] <__rob> so it can still be used by hand when off
[08:21:28] <jdh> how do the handwheels mount now? m8?
[08:21:47] <__rob> yea, then a nut on the end
[08:24:22] <archivist> are the wheels threaded so they become the backlash adjusters
[08:25:20] <__rob> yea
[08:25:22] <__rob> they are
[08:26:02] <archivist> that is another reason to thread your couplers so thay can perform a similar function
[08:38:26] <PetefromTn_> Good morning
[08:38:43] <jdh> how is .tn.us this fine morning?
[08:38:44] <PetefromTn_> I think I may have just bought my first CNC lathe for retrofit
[08:39:00] <PetefromTn_> oh pretty good I guess.
[08:39:01] <jdh> jpegs?
[08:39:04] <PetefromTn_> starting to get chilly
[08:39:13] <PetefromTn_> well it is not actually here just yet
[08:39:17] <jdh> guess where I'm going friday
[08:39:18] <PetefromTn_> going to get it this weekend
[08:39:26] <PetefromTn_> FLORIDA...bastard?
[08:39:30] <jdh> good guess
[08:40:00] <jdh> what lathe?
[08:40:05] <PetefromTn_> well since I am now going to have to learn LinuxCNC lathe to be able to run it
[08:40:11] <PetefromTn_> I have been doing some research about it
[08:40:21] <PetefromTn_> and I happened across this video on youtube last night
[08:40:27] <PetefromTn_> https://www.youtube.com/watch?v=fkOJhT69WEc
[08:40:41] <PetefromTn_> It has some rather impressive conversational control setup
[08:40:50] <PetefromTn_> anyone here ever seen anything like that before?
[08:43:42] <JT-Shop> yea, he posts on the LinuxCNC forum
[08:44:03] <PetefromTn_> has anyone tried that plugin or whatever it is, he called it a theme..
[08:44:20] <JT-Shop> I use ngcgui
[08:44:38] <JT-Shop> no fancy graphics just works
[08:46:11] <PetefromTn_> hm not familiar with that either. which do you think is better?
[08:47:58] <JT-Shop> well I can't honestly answer that question... I use ngcgui and not the other
[08:48:22] <PetefromTn_> can you create radiuses and long arcs with it?
[08:48:28] <PetefromTn_> tapers etc?
[08:48:47] <JT-Shop> you can create anything G code will do with ngcgui and fill in the blanks
[08:48:58] <PetefromTn_> nice
[08:49:01] <JT-Shop> http://linuxcnc.org/docs/html/gui/ngcgui.html
[08:49:07] <PetefromTn_> what kind of lathe do you have again?
[08:49:20] <JT-Shop> http://gnipsel.com/shop/hardinge/hardinge.xhtml
[08:50:15] <PetefromTn_> thats right I remember now.
[08:50:18] <PetefromTn_> nice machine
[08:52:22] <JT-Shop> thanks
[08:54:11] <archivist> I just use axis and an editor for the gcode on the lathe
[08:55:01] <PetefromTn_> I will most likely just use CAM for the programming but it was nice to see there is a considerably well laid out conversational setup on there if you want to use it.
[08:55:45] <PetefromTn_> Well back to work...
[09:04:18] <JT-Shop> I do 90% of the ops on the lathe with ngcgui faster than I can draw it in CAD
[09:13:39] <JT-Shop> the nice thing is you can concatenate the ops into a single file in the order you want
[09:33:04] <JT-Shop> PetefromTn_ when you come back http://ibin.co/1ecEHX3uknzA
[09:35:02] <archivist> !later PetefromTn_ http://ibin.co/1ecEHX3uknzA
[09:35:02] <the_wench> will tell PetefromTn_ when he/she joins next
[09:36:53] <JT-Shop> thanks
[09:44:55] * JT-Shop thinks the third time might be the charm to getting this fixture right
[10:15:22] <dirty_d> what if i dont have home switches? how do i manually jog and zero?
[10:15:38] <dirty_d> it seems like everything is disabled until i click home
[10:15:55] <dirty_d> this is in the simulator version though, so im not sure if thats the only reason why
[10:16:30] <_methods> yeah home it wherever you want
[10:16:44] <_methods> move to your home location and zero it out
[10:16:57] <_methods> you could plug it in with g10 also
[10:18:56] <CaptHindsight> dirty_d: you probably want to leave the homing configs alone for the SIM but when you get your hardware http://linuxcnc.org/docs/html/config/ini_homing.html
[10:19:10] <CaptHindsight> http://www.linuxcnc.org/docs/2.4/html/config_ini_homing.html
[10:19:24] <dirty_d> ok, thanks
[10:19:26] <CaptHindsight> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Homing_And_Limit_Switch
[10:19:56] <CaptHindsight> you get to decide how you want to home
[10:20:41] <dirty_d> ok
[10:24:07] <zeeshan> if you need help with sietting it up
[10:24:09] <zeeshan> let us know
[10:24:19] <zeeshan> the help file is a little confusing at first :P
[10:42:28] <dirty_d> hmm, i set the settings at 3.12. Immediate Homing
[10:42:56] <dirty_d> but when i click home, it moves to the bottom left of the "L"
[10:43:18] <dirty_d> it sais its supposed to home at the current position
[10:43:53] <dirty_d> im editing config/sim/axis/axis.ini
[10:44:01] <dirty_d> and selecting axis when linuxcnc starts up
[10:44:06] <dirty_d> so i assume im editing the correct file
[10:45:11] <jthornton> never assume!
[10:45:34] <zeeshan> anyone here use federal pioner panels
[10:45:35] <zeeshan> before?
[10:46:49] <zeeshan> yea it's the ini file you modify
[10:48:33] <dirty_d> is there any way to make it so i dont have to home?
[10:48:39] <dirty_d> my machine doesnt have a home
[10:48:50] <zeeshan> you should be able to click home yourself..
[10:48:54] <dirty_d> i used to use mach3, and i would just zero the axes
[10:49:46] <dirty_d> the home all button is greyed out, but i can still click home all from the machine menu
[10:50:28] <zeeshan> sounds like it's setup in the .ini file to home using switches
[10:50:30] <zeeshan> not home manually :P
[10:51:12] <dirty_d> i set SEARCH_VEL = 0, LATCH_VEL = 0, USE_INDEX = NO, HOME_SEQUENCE = 0
[10:51:21] <dirty_d> like it says on http://linuxcnc.org/docs/html/config/ini_homing.html
[10:51:21] <jthornton> if your playing with the Axis sim it will home all unless you messed with the ini file
[10:51:32] <dirty_d> i am editing axis.ini
[10:51:48] <zeeshan> jthornton: i was looking at some of your mig welds
[10:51:57] <zeeshan> like for your furnace rising weldment
[10:52:04] <zeeshan> what kind of mig welder are you using?
[10:52:05] <jthornton> config/sim/axis/axis.ini is a simulator to play with
[10:52:09] <zeeshan> and are you using argon/co2 mix?
[10:52:23] <dirty_d> jthornton, yea
[10:52:27] <jthornton> Miller, mixed on one co2 on the other one
[10:53:09] <jthornton> dirty_d, so you should not have to mess with the ini file in a sim just press home all then load a practice program to play with
[10:53:15] <dirty_d> are those typos? it says set SEARCH_VEL to 0, but in the ini file its HOME_SEARCH_VEL
[10:53:19] <dirty_d> is there another section for that?
[10:53:47] <dirty_d> jthornton, i know but when i write the ini file for my machine, how am i going to get homing to work if i cant get it to work on the sim?
[10:54:07] <jthornton> homing works on the sim
[10:54:20] <dirty_d> but i want to make the sim not have homing like my machine
[10:54:29] <jthornton> start a new config using stepconf or pncconf
[10:54:44] <dirty_d> so i know how the setup works and i dont crash my machien the first time i set it up, lol
[10:55:02] <dirty_d> ok
[10:55:11] <jthornton> the sim has lots of magic in it to make it work... start with a blank stepconf configuration
[10:55:25] <jthornton> bbl
[10:56:16] <dirty_d> ahh, ok
[10:56:22] <zeeshan> jthornton: miller what model? :D
[10:56:23] <pcw_home> You should expect crashes and have a working estop system bwfore you move anything
[10:57:50] <ssi> pcw_home: so I had my nightly hardware murdering session last night
[10:58:10] <ssi> pcw_home: what's likely dead on a 7i77 if 5v got very briefly overvolted, and now CR6 in extremely dim and CR7 is unlit
[11:14:42] <dirty_d> what if i want to just manually enter gcode?
[11:14:58] <dirty_d> it seems to be greyed out until i run the currently loaded program
[11:15:07] <dirty_d> and i dont see any way to close the currently loaded program
[11:16:23] <_methods> you should be able to go to mdi and input gcode
[11:17:02] <dirty_d> the box is greyed out until i run the currently loaded program
[11:17:15] <dirty_d> axis.ngc
[11:17:19] <_methods> your mdi box?
[11:17:21] <dirty_d> yup
[11:17:26] <_methods> hmmm
[11:17:32] <ssi> is the machine enabled and homed?
[11:17:36] <dirty_d> yes
[11:18:05] <dirty_d> if i run the program, then stop, i can enter gcode in the MDI box
[11:19:26] <_methods> yeah i have no idea what's goin on there
[11:19:37] <_methods> sounds like it thinks it's not enabled or something
[11:20:42] <dirty_d> hmm
[11:22:43] <dirty_d> it seems like zeroing doesnt do anything either
[11:24:37] <dirty_d> the coordinates at the top of the display with the +o circle thing are machien coordinates?
[11:26:54] <dirty_d> if i manually jog off somewhere random, then go in the menu and try to zero, either g54, or g92, then run g01 x0 y0 z0, it always goes back to the bottom left of the "L"
[11:27:10] <dirty_d> it should stay where it is no?
[11:29:17] <pcw_home> ssi: 5V powers the encoder input circuit, the +-16V power, the isolator for the field I/o
[11:30:01] <ssi> I think it's something in the +-16V that I killed
[11:30:04] <ssi> but I'm not sure what exactly
[11:30:17] <ssi> I haven't tried any of the field io, but the analog outs for the servos aren't working
[11:30:31] <ssi> and CR6/CR7 are out
[11:34:49] <pcw_home> Probably killed the gate driver (74ACT04?) and maybe MOSFETs (and could have killed the OP AMPS)
[11:35:19] <ssi> super
[11:35:42] <ssi> this one I probably ought to just mail back
[11:35:43] <pcw_home> more than about 7V will probably kill the gate driver
[11:36:13] <ssi> mechanically I have no problem repairing it, but without a schematic or a clear idea of what's dead it'll probably be an annoying cat and mouse game
[11:36:18] <pcw_home> if its hot(at 5V), you might try replacing it first
[11:36:22] <ssi> ok
[11:36:32] <pcw_home> Or you can return it and we can take a look
[11:36:47] <ssi> what's the refdes for the gate driver?
[11:37:21] <ssi> is it U32, the big dpak guy?
[11:37:26] <ssi> he seemed a bit warm
[11:37:45] <zeeshan> 11 m @ bx
[11:38:01] <ssi> o you said 74ACT04
[11:38:03] <pcw_home> gate driver is just a 74ACT04
[11:38:05] <ssi> lemme find a loupe
[11:38:05] <ssi> heh
[11:38:46] <pcw_home> drives a P and N SOT23 MOSFET pair that run the +-16V charge pump
[11:41:38] <ssi> heh my eyes are so bad
[11:41:42] <ssi> busted out the microscope
[11:41:47] <ssi> looks like U33 is a 74ACT04
[11:43:14] <ssi> then there's a bank of 9 sot23 devices
[11:45:21] <ssi> the gate driver definitely gets warm under power
[11:45:24] <ssi> not necessarily hot
[11:45:39] <ssi> I should have gotten one of those flir cameras for iphone :P
[11:48:06] <dirty_d> damn, i shoulda bought this, it would work fine right? http://www.newegg.com/Product/Product.aspx?Item=N82E16813135322
[11:50:37] <zeeshan> damn
[11:50:40] <zeeshan> 28 bux for a mobo and cpu
[11:50:43] <zeeshan> thats dirt cheap
[11:50:59] <zeeshan> who needs raspberry pi
[11:51:07] <zeeshan> and bb when you got this
[11:51:27] <ssi> well to be fair, that's still more expensive than either a bb or rpi once you add ram
[11:51:30] <dirty_d> well you need a psu and hdd too
[11:51:50] <CaptHindsight> old VIA VX900, the the x86 co that was always late and overpriced
[11:51:50] <zeeshan> run it off a usb stick
[11:51:55] <zeeshan> :D
[11:52:20] <ssi> CaptHindsight: I have a via c3 itx board that's been running my little lathe for a long time with no issues
[11:52:36] <ssi> and it's an OOOOOOLD machine
[11:53:06] <dirty_d> i have a feeling im going to end up with a monitor with a microitx mobo and power supply duct taped to the back of it
[11:53:08] <CaptHindsight> http://www.newegg.com/Product/Product.aspx?Item=N82E16813455001 $45 imx6 board
[11:53:39] <ssi> dirty_d: I got a 90w picopsu for my atom itx board for the build I'm working on now and it seems to work well
[11:53:44] <dirty_d> and while im at it, ill splice two power cords togther
[11:53:55] <CaptHindsight> ssi: I used to work with VIA. They were/are a money pit.
[11:54:03] <ssi> CaptHindsight: oh I don't doubt it
[11:55:11] <dirty_d> there are so many of these single board computers now
[11:55:11] <ssi> I wish cadsoft would hurry up and send me my new license
[11:55:37] <CaptHindsight> if that ^^ imx6 board really has the PCIe signals routed to the mini-PCIe connector it could work with the 6i25
[11:56:08] <ssi> has anyone made third party smartserial devices?
[11:56:30] <CaptHindsight> ah that version board does not :(
[11:56:48] <dirty_d> does linuxcnc work on it?
[11:56:56] <CaptHindsight> PCIe is only on the HummingBoard-i2eX
[11:57:34] <CaptHindsight> http://www.newegg.com/Product/Product.aspx?Item=N82E16813455003 $99 :(
[12:00:28] <CaptHindsight> ssi: I could have sent you a few C3 boards to use
[12:00:45] <ssi> yeah I actually had five and I think the other four got thrown out :)
[12:00:52] <CaptHindsight> heh
[12:01:53] <CaptHindsight> they work much better with coreboot, the factory BIOS on many were temperamental
[12:02:26] <CaptHindsight> well 10 years ago anyway
[12:13:21] <ssi> pcw_home: haha I found a place to scavenge a 74ACT04
[12:16:18] <ssi> and probably the mosfets too if necessary
[12:19:40] <ssi> bam
[12:19:45] <ssi> CR6 and CR7 are back on
[12:19:45] <ssi> :D
[12:19:57] <zeeshan> whered you find that chip
[12:20:02] <ssi> 7i33
[12:20:04] <zeeshan> :D
[12:20:07] <ssi> hehehh
[12:20:23] <zeeshan> nice man
[12:20:40] <ssi> never wantonly destroy anything you're unwilling to fix :D
[12:33:14] <_methods> http://hackaday.com/2014/10/22/watch-that-windows-update-ftdi-drivers-are-killing-fake-chips/
[12:34:43] <jasen> http://zeptobars.ru/en/read/FTDI-FT232RL-real-vs-fake-supereal
[12:36:37] <_methods> i know i've probably got some fake ones in a few of my projects
[12:37:51] <jasen> if you need real chips , buy from relayable supplyers like digikey or farnel
[12:38:06] <jasen> mouser sell fake
[12:38:18] <_methods> i buy my shit from china
[12:38:24] <_methods> if it no workie i throw it away
[12:38:48] <_methods> i'd be happy to buy from digikey if they didn't try and shove a ups van up my ass when i did
[12:39:05] <_methods> it's cheaper to have them shipped from china than to buy from digikey
[12:41:49] <ssi> heh
[12:41:59] <ssi> digikey has been pretty ok on shipping for me
[12:42:02] <ssi> mouser is the one that sucks
[12:42:07] <ssi> mouser will sit on an order for three days
[12:42:12] <ssi> then ship it ups, which takes a week
[12:42:24] <ssi> digikey uses usps and I get it in 2 days
[12:42:33] <ssi> I just hate digikey's website
[12:43:05] <_methods> oh the shipping time is great
[12:43:07] <_methods> it's the price
[12:43:11] <jasen> I am working with farnell , 1 day only , digikey take a week
[12:43:14] <ssi> shipping price, or parts price?
[12:43:20] <_methods> shipping price
[12:43:24] <_methods> part price is fine with me
[12:43:35] <lair82> Hey guys, I started over and re-installed debian, then got things setup to use the buildbot. I figured i would run the latency test for a while to see how this MB/CPU and SSD run together, and it blew me out of the water, the max jitterfor the servo thread in ns was over 5 million. I performed the Isolcpus=1 add-on, and it helped but I am trying to switch to the vesa graphics now and hitting a roadblock
[12:43:38] <_methods> but when i order 10 little caps and i pay $16 shipping
[12:43:42] <_methods> FU
[12:43:56] <pcw_home> Digikey is great for protos/low volume
[12:44:21] <ssi> I wish I had something like digikey that had a local warehouse, so I can willcall it the way I can mcmaster
[12:45:00] <ssi> I'd rather pay salestax and have it today than shipping and wait
[12:45:20] <ssi> pcw_home: how feasible is it to build my own smartserial devices?
[12:45:34] <ssi> I'm guessing it's just an rs422 transciever and learning the protocol
[12:46:22] <pcw_home> you need a fast ucontroller that has a UART that will work at 2.5 MB
[12:46:40] <ssi> I imagine I'd use the same pic you use on your sserial devices
[12:47:27] <mozmck> huh, mouser is great for shipping here. order by 5PM and we get it the next day
[12:47:54] <lair82> when i try "sudo service gdm stop" it says gdm not available
[12:47:54] <_methods> yeah i get the parts right away
[12:47:56] <mozmck> as for them selling fakes, I highly doubt that.
[12:47:57] <_methods> and the bill
[12:48:22] <_methods> yeah i doubt mouser is intentionally selling fakes
[12:48:56] <pcw_home> You can use the PIC (I'd probably use a STM32F303)
[12:48:58] <pcw_home> the 7I90 has some example code (in an obscure machin language)
[12:49:04] <mozmck> no more than digikey or farnell, or avnet.
[12:50:28] <mozmck> avnet has the best prices on some things, digikey on others, but we use mouser for most stuff. Digikey is the slowest for shipping for us, but I bet it all depends on the location of a distribution center.
[12:50:38] <ssi> pcw_home: looks fancy... I used to do a lot of PIC work, but that ARM is probably considerably nicer
[12:51:00] <dirty_d> i have the f303 discovery board, its very nice
[12:51:14] <pcw_home> well ~$3.00 72 MHz floating point, 4x 5 MS/Sec A-Ds
[12:51:30] <ssi> yeah it'd do everything I'd want
[12:51:39] <ssi> I had a wacky thought last night
[12:51:56] <dirty_d> and for $15 you have a board with all the pins broken out with usb and all
[12:52:01] <dirty_d> nice for prototyping stuff
[12:52:02] <ssi> since I have to have a board on each drive for the commutation stuff, and I was talking about the idea of integrating the current monitoring into it
[12:52:35] <ssi> I could go whole hog and put something like that chip on there as a sserial slave, and have it also do encoder counting and DAC for servo control signals
[12:52:49] <ssi> then the machine could be something like a 7i74 fanning out to individual servo drive packages
[12:52:52] <zeeshan> http://i.ebayimg.com/00/s/NDUxWDgwMA==/z/DFUAAOSw6EhUPEor/$_20.JPG
[12:52:54] <zeeshan> am i retarded
[12:52:56] <zeeshan> i cant see thbe lugs?
[12:52:57] <ssi> would be pretty neat, and a fun exercise in learning the sserial stuff
[12:53:06] <zeeshan> for L1 and L2
[12:53:55] <lair82> zeeshan they are right at the top of the breakers
[12:54:08] <zeeshan> i mean for the main bus bar
[12:54:17] <zeeshan> usually its on the top
[12:54:23] <zeeshan> i see a lug right in the center..
[12:55:02] <lair82> theres two of them there with a fiber insulator between l1 and l2
[12:55:14] <zeeshan> they're in line?
[12:55:20] <zeeshan> at different heights?
[12:55:50] <jdh> z: you worked at eaton?
[12:56:00] <lair82> must be the way it looks, square d i-line panels are like that,
[12:56:15] <zeeshan> jdh yes
[12:56:18] <lair82> buss bars are on top of each other
[12:56:30] <zeeshan> lair82: so weird
[12:56:40] <zeeshan> the eaton panel boards had 2 seperate bus bars for single phase panels
[12:56:45] <jdh> my daughter had an interview for a co-op thing with an eaton
[12:56:52] <zeeshan> jdh what position?
[12:56:55] <ssi> EATON ICE CREAM
[12:57:00] <pcw_home> lair82: you had latency problems with preemt-rt?
[12:57:07] <zeeshan> i hope she gets in
[12:57:11] <zeeshan> it's a really great company to work for
[12:57:46] <zeeshan> their mission statement i think is the reason
[12:57:47] <lair82> yep, its running right now, and servo thread max jitter in ns is at 1108622
[12:58:01] <CaptHindsight> somebody needs to figure out a way to make money with a website that determines the best places to buy things from based on the buyers locations
[12:58:22] * JT-Shop should do some work but a nap sounds better
[12:58:32] <zeeshan> JT-Shop: you nap a lot
[12:58:34] <pcw_home> lair82: what does
[12:58:35] <pcw_home> uname -a
[12:58:37] <pcw_home> print?
[12:59:23] <lair82> greenmill@greenmill:~$ uname -a Linux greenmill 3.4-9-rtai-686-pae #1 SMP PREEMPT Debian 3.4.55-3linuxcnc i686 GNU/Linux
[13:00:17] <pcw_home> also for preemt-RT you typically need to disable the base thread to get reasonable latency test numbers (since the default base thread is too fast for Preemt-RT)
[13:00:46] <lair82> how do i do that?
[13:00:51] <pcw_home> like
[13:00:53] <pcw_home> latency-test 1ms 1ms
[13:02:44] <lair82> now I've got 58858
[13:03:00] <_methods> ouch
[13:03:09] <lair82> 80815
[13:03:09] <pcw_home> thats fine
[13:04:01] <lair82> Would the vesa graphics help this?
[13:04:08] <pcw_home> still OK for 1 KHZ, usually youtube videos cause the worst delays
[13:04:29] <pcw_home> maybe, never tried
[13:04:59] <lair82> If its ok, I'm goingto leave well enough alone
[13:05:21] <CaptHindsight> whats the string for finding all the latency-test parameters? latency-test -h --h --H -help ?
[13:06:32] <pcw_home> latency-test needs a man page
[13:08:21] <lair82> I agree, i thougtht it needed to be under like 25k-30k ns to be effective
[13:09:41] <ssi> pcw_home: sserial fast enough for encoder data, if I put an encoder counter on a sserial daughterboard?
[13:10:51] <Connor> pcw_home: I'm not seeing the 7I92's on the store site.
[13:12:37] <zeeshan> lair82: i use vesa gfx on my machine
[13:12:42] <zeeshan> if i used the nvidia driver
[13:12:46] <zeeshan> i had some latency issues
[13:12:46] <pcw_home> currently sserial is not really suited for encoders (because read data is always a cycle late)
[13:12:48] <pcw_home> I intend to fix this by splitting the data into RX and TX data with RX data requested before needed by DPLL timer
[13:12:49] <pcw_home> but that will be a while
[13:12:57] <ssi> I see
[13:14:10] <pcw_home> ssi simply running the servo thread at 2 KHz or more will make velocity loops OK
[13:14:18] <CaptHindsight> apparently any string turns off the base thread latency-test -(insert anything) does it for me
[13:14:29] <zeeshan> im reading my vfd's manual: "L1-Phase or L3-phase is open -> status not operate", "L2-phase is open -> inverter operates by single phase power supply. Therefore, UV or OC may occur"
[13:14:30] <zeeshan> ?!?!
[13:14:50] <ssi> zeeshan: it means when you hook up your power, use L1 and L3
[13:14:57] <zeeshan> whats uv or oc
[13:15:03] <ssi> undervolt, overcurrent
[13:15:06] <zeeshan> oh
[13:15:11] <CaptHindsight> zeeshan: is there an English translation? :)
[13:15:20] <pcw_home> Yes I think I found that by desperately trying to find the help string
[13:15:27] <zeeshan> CaptHindsight: it looks like someone translated this using babelfish. japanese to english
[13:15:50] <ssi> pcw_home: I'm going to take a stab at designing a board with enough stuff onboard to run a single servo drive via sserial, but I'm going to include provisions for normal straight through wiring to the 7i77 as well so I have a contingency plan :)
[13:16:07] <ssi> I think it'd be really need to have a board strapped directly to a drive, and be able to hook the whole thing up via one cat5 cable
[13:16:15] <lair82> How do you configure it when running debian?
[13:16:16] <ssi> s/need/neat/
[13:18:43] <pcw_home> lair82: 80 usec of latency is OK unless you are running very fast or very precise machines
[13:18:44] <pcw_home> I intend to add retimed input sampling to the encoders and resolver interface when I get a chance
[13:18:46] <pcw_home> (its already there on the absolute encoders and stepgen) This will make up to a couple hundred
[13:18:47] <pcw_home> usec latency tolerable even on very fast.precise machines
[13:18:50] <CaptHindsight> latency-test 2ms or 2us works, so it might be latency-test (space) X(any integer) ms or us
[13:19:49] <CaptHindsight> and if you put two numbers after latency-test 200us 1ms you get two tests, one at 200us and the other at 1ms
[13:20:41] <zeeshan> i cant decide
[13:20:46] <zeeshan> buy this federal pioneer panel or square d
[13:20:53] <zeeshan> federal comes with all the breakers i need
[13:20:54] <zeeshan> except
[13:20:55] <zeeshan> 1..
[13:23:19] <CaptHindsight> latency-test (base thread integer+ms or us) (servo thread integer+ms or us)
[13:25:07] <CaptHindsight> hehe I managed to kill X by trying to test with a 2us base thread
[13:25:25] <CaptHindsight> nope kernel panic
[13:25:34] <ssi> lolol
[13:31:17] <CaptHindsight> any test under 4us results in kernel panic, but was getting 7us jitter with 4us thread
[13:33:26] <zeeshan> anyone actually test a circuit breaker
[13:33:31] <zeeshan> to see if it trips when overloaded? :P
[13:33:47] <_methods> heheh all the time........on accident
[13:33:59] <zeeshan> what do you do?
[13:34:05] <zeeshan> just short the wires? :p
[13:34:06] <archivist> lol
[13:34:08] <_methods> stupid stuff
[13:34:11] <CaptHindsight> they will trip with as little as 90% of the rated current over time
[13:34:24] <zeeshan> i wanna test the breakers im getting
[13:34:26] <zeeshan> before trusting em
[13:34:34] <zeeshan> im thinking of hooking them to a wood board
[13:34:35] <zeeshan> powering em
[13:34:39] <zeeshan> and shorting the wires
[13:34:41] <_methods> yeah i made a spot welder........
[13:34:43] <CaptHindsight> the more they trip the less accurate they become
[13:34:45] <_methods> that was fun
[13:35:01] <archivist> I have never tested breakers, they are made to a standard
[13:35:15] <zeeshan> im reading about federal pioneer breakers
[13:35:23] <zeeshan> apparently they dont trip at their rated current
[13:35:30] <zeeshan> and wires have caught on fire in the past lol
[13:35:31] <archivist> none do
[13:35:43] <archivist> there is a margin of error
[13:35:52] <CaptHindsight> zeeshan: they will trip at different points based on their temperature and the ambient temp of the location they are in
[13:35:54] <zeeshan> well if you're pushing 20A through it
[13:36:00] <zeeshan> it should trip if its rated for 15A
[13:36:02] <zeeshan> almost instantly
[13:36:15] <zeeshan> depending on their curve
[13:37:00] <archivist> think AC and the RMS current they have to take more for part of the cycle
[13:37:55] <CaptHindsight> they don't have uC's inside that monitor current and temp over time with 0.1% accuracy for trip current
[13:38:01] <archivist> these days some codes rate cables for a period of short before breakers drop out
[13:38:02] <ssi> CaptHindsight: WHY NOT
[13:38:15] <ssi> HOW MANY CHILDREN HAVE TO DIE BEFORE OUR CIRCUIT BREAKERS ARE ADEQUATELY INTELLIGENT?
[13:38:21] <ssi> WON'T SOMEONE PLEASE THINK OF THE CHILDREN?
[13:38:21] <archivist> the have thermal delays
[13:38:33] <zeeshan> i forgot the names of the breakers
[13:38:34] <_methods> heheh
[13:38:37] <zeeshan> there earth leakage ones that monitor the ground
[13:38:39] <CaptHindsight> the number is usually 50-60 white people
[13:38:44] <ssi> zeeshan: GFCI
[13:38:47] <zeeshan> we had CTs
[13:38:53] <ssi> CaptHindsight: sounds about right
[13:38:57] <zeeshan> that monitored the incoming
[13:38:59] <zeeshan> and tripped the breaker too
[13:39:05] <zeeshan> didnt rely on just thermal overload
[13:39:07] <CaptHindsight> http://www.theonion.com/articles/experts-ebola-vaccine-at-least-50-white-people-awa,36580/
[13:39:09] <cpresser> basically breakers have an integral. current * dt = heat. when that grows large enough, it trips
[13:39:10] <zeeshan> yes ssi thats it gfci
[13:39:29] <ssi> cpresser: explaining a simple concept in complex terms :)
[13:40:00] <zeeshan> cpressed knows heat transfer
[13:40:01] <zeeshan> :D
[13:40:42] <cpresser> hehe )
[13:40:48] <archivist> breakers and fuses are designed to allow short term overloads of certain percentages
[13:41:02] <cpresser> its called 'schmelzintegral' in german, but I cant translate it :/
[13:41:09] <archivist> the amount depends on the use it is designed for
[13:41:30] <zeeshan> i^2 * t
[13:41:35] <archivist> there are motor rated breakers
[13:41:51] <CaptHindsight> melting integral = schmelzintegral
[13:42:57] <cpresser> CaptHindsight: is that just a word-by-word-translation, or the correct technical term?
[13:44:14] <CaptHindsight> cpresser: http://www.siba-fuses.com/front_content.php?idart=194
[13:44:42] <cpresser> thx
[13:44:44] <CaptHindsight> seems to be the accepted term
[13:50:47] <CaptHindsight> zeeshan: is it national "show us your guns day" up there today?
[14:05:40] <CaptHindsight> http://www.instructables.com/id/Near-Infrared-Camera-for-Less-than-10-and-10-mi/
[14:06:23] <CaptHindsight> zeeshan: cheap IR webcam to monitor the temp of the conduit and wires as backup
[14:06:44] <CaptHindsight> and a smoke detector should do it
[14:07:38] <lair82> pcw_home, The machine is going to be in the 400ipm rapid range, and I would like it to hold .0002" to .0005" worth of accuracy, and run no more than 1 thou per 1 ipm of following error.
[14:07:53] <lair82> Do you think maybe its the SSD?
[15:16:13] <ssi> PCW: I flashed the 5i25 in my laser pc to a 7i77 firmware for some testing awhile back, and I just now put it back to 7i76x2 (which I assume is what used to be on there), and I can't get linuxcnc to run the laser configs, which were known good before
[15:16:19] <ssi> it's complaining about one of the field io pins not existing
[15:16:58] <ssi> 7i76.0.0.input-02-not
[15:18:15] <PCW> did you cycle the PC power?
[15:21:04] <ssi> yeah
[15:21:18] <ssi> and --verify confirms it's the right firmware, and --readhmid shows the stepgens
[15:21:34] <PCW> field power OK?
[15:21:52] <ssi> hm lemme check
[15:22:58] <ssi> bah never mind, I'm a moron
[15:23:05] <ssi> fairly certain the db25 has to be plugged in at both ends
[15:23:07] <ssi> or all the bits leak out
[15:27:11] <_methods> hahahah
[15:27:25] <_methods> those are the best problems
[15:27:41] <_methods> unless you wipe everything and reinstall and start desoldering stuff and resoldering
[15:29:32] <ssi> :)
[15:31:57] <ssi> https://pbs.twimg.com/media/B0k78PGIQAAel1y.jpg:large
[15:32:07] <ssi> mounting hole mechanical verification for the new pcb
[15:32:11] <ssi> it'll mount to the bottom of the drive like that
[15:32:21] <ssi> the drive mounts in the enclosure just like it's sitting on the desk
[15:32:33] <ssi> that might actually be unwise due to heat haha
[15:32:40] <ssi> maybe some longer standoffs :P
[15:57:59] <JT-Shop> this Debian computer don't know the time
[16:25:56] <ssi> any primus fans?
[16:26:03] <ssi> I think I may have gotten a golden ticket
[16:35:26] <Deejay> gn8
[17:06:51] <ssi> nope, guess not
[17:07:43] <_DannyK_> ssi, have you fixed you variable power supply opps?
[17:08:10] <Connor> ssi: Speaking of that.. how did the knob get turned up. :)
[17:08:42] <_DannyK_> I think he said it got bumped
[17:12:15] <ssi> _DannyK_: yea I fixed it
[17:12:20] <ssi> and yeah it got bumped
[17:12:42] <ssi> the supply has a 5v fixed out, but I wasn't using it because I wanted to be able to limit current if something went wrong
[17:12:45] <ssi> irony :(
[17:13:25] <_DannyK_> hehe, sound reasoning
[17:15:14] <_DannyK_> Ahh, fudge..
[17:16:24] <_DannyK_> Just lost a poly carbonate lense and o-ring. fell to the floor some where with the 20 or so beer caps that are the identical size
[17:18:18] <MrSunshine> http://9gag.com/gag/a9M1bKK boobys for everyones ejoyment! (SFW) =)
[17:18:38] <_DannyK_> lol....
[17:18:39] <_DannyK_> nice
[17:21:24] <MrSunshine> cutest bird ever =)
[17:44:15] <hpopols> Good evening
[17:44:52] <hpopols> I am working on a python/qt gui for lcnc (coil machine purpose)
[17:45:47] <hpopols> and I can't find how to optain the "auto" (Run , pause , stop,...) status from the python linuxcnc interface
[17:46:34] <hpopols> The documentation is celar about how to set it (through linuxcnc.command().auto(...))
[17:47:13] <hpopols> but not about how to optain the state (through linuxcnc.state())
[17:47:42] <hpopols> Did i miss something?
[18:18:57] <cpresser> hpopols: you can query halui pins for that
[18:20:18] <hpopols> cpresser : yes i though about that, using import hal....
[18:20:59] <hpopols> i am searching in the axis code to see how they have done that
[18:22:34] <hpopols> axis code is fucking HUGE!
[18:23:09] <hpopols> nearly 1 file with 3500lines!
[18:24:39] <hpopols> cpresser: if you found something more pythonic (direct from MNL i mean) I am interested :)
[18:25:16] <hpopols> anyway i want to thank you for the answer, I felt lonely here :/
[18:25:16] <cpresser> hpopols: cant help with that. i never worked with NML besides of altering a few examples
[18:26:03] <ssi> http://www.ebay.com/itm/8-DIAMETER-CARBIDE-INSERTS-FACE-MILL-SHELL-MILL-CAT40-CAT50-CNC-VMC-/161318692560?pt=BI_Tool_Work_Holding&hash=item258f57e6d0
[18:26:13] <ssi> I bet that sucker would move some aluminum
[18:27:40] <cpresser> or cubicmeteres of foam
[18:28:00] <hpopols> interesting the running state is hybrid : "return s.task_mode == linuxcnc.MODE_AUTO and s.interp_state != linuxcnc.INTERP_IDLE"
[18:28:29] <hpopols> let's find the others
[18:39:09] <hpopols> ok everything is in the axis.py file, search for task_### for ### in (pause,step,resume,run,pauseresume,stop)
[18:41:55] <hpopols> see you around guys
[18:42:06] <hpopols> bye
[18:57:13] <roycroft> there's an article in the new digital machinist about migrating from mach3 to linuxcnc
[18:58:53] <_DannyK_> As pure curiosity, who here watches Silicon Valley?
[18:59:27] <ssi> i saw the first ep
[18:59:54] <_DannyK_> how did you like it?
[19:00:56] <ssi> it was ok
[19:01:20] <ssi> obviously not super compelling or I would have watched them all in one sitting :P
[19:01:33] <CaptHindsight> it got better
[19:01:48] <_DannyK_> haha, yeah.. I eventually watched them, and Cap
[19:01:49] <CaptHindsight> Idiocracy was his best do far
[19:01:57] <CaptHindsight> do/so
[19:02:00] <_DannyK_> and as Capt said* it got better
[19:02:28] <CaptHindsight> funny and painful at the same time
[19:02:38] <_DannyK_> Idiocracy scared me
[19:02:48] <ssi> he's very good at making things that are satirical but plausible
[19:03:02] <ssi> from what I saw of silicon valley, it was that way
[19:03:18] <ssi> I've spent enough time in silicon valley to know that a lot of that silliness is very much real
[19:03:30] <_methods> man silicon is awesome
[19:03:42] <_methods> that dick formula
[19:03:43] <CaptHindsight> extract was so so
[19:03:53] <_methods> classic
[19:03:56] <_DannyK_> well it took eight episodes, to make me cry
[19:04:16] <_methods> are they doing another season of it?
[19:04:19] <ssi> I'll watch more of it when I get some free time :
[19:05:18] <_DannyK_> Worth the build up to the 8th episode. IMO
[19:05:27] <CaptHindsight> http://mashable.com/2014/04/21/silicon-valley-renewed-for-second-season-by-hbo/
[19:06:02] <_DannyK_> Capt, that was after the first 4 episodes aired, I believe.
[19:06:04] <_methods> ah good deal
[19:06:39] <CaptHindsight> I'd really like to see his first cut of Idiocracy, but it will never be released
[19:06:45] <_methods> my wife usually hates all the shows i watch but she actually watched silicon valley with me
[19:06:59] <_methods> if i put the league on she leaves
[19:07:01] <_methods> lol
[19:08:16] <roycroft> i haven't heard of it
[19:08:27] <roycroft> but that url indicates it's on hbo, so that would probably be why
[19:10:09] <_methods> https://www.youtube.com/watch?v=Tx3wDTzqDTs
[19:10:44] <_DannyK_> don't clcik that
[19:10:47] <_methods> THE dick joke
[19:11:02] <ssi> I'mma hold off and see it in its full context :P
[19:11:05] <_DannyK_> it is the best scene and may ruin the whol season for you
[19:11:06] <ssi> I heard it was epic
[19:11:21] <_methods> it is THE greatest dick joke ever
[19:11:59] <CaptHindsight> "Mean Jerk Time"
[19:12:21] <_methods> hehe
[20:09:29] <ssi> argh ups is soooo slow
[20:09:43] <ssi> over a week to get something from SF to atlanta? absurd
[20:34:41] <ssi> hey pete
[20:34:44] <ssi> man that lathe you linked me was nuts
[20:35:01] <PetefromTn_andro> ?
[20:35:11] <PetefromTn_andro> Oh yeah
[20:35:22] <PetefromTn_andro> The live tool one.
[20:36:28] <ssi> yeah
[20:36:30] <PetefromTn_andro> Pretty kickass for a homebuilt
[20:36:43] <ssi> yeah very
[20:37:14] <PetefromTn_andro> I like the pneumatic chain driven headstock setup for positioning
[20:37:24] <_DannyK_> Any chances of getting the "repeater" for the link?
[20:37:53] <PetefromTn_andro> You got it ssi I'm on my cellphone
[20:38:07] <ssi> https://www.youtube.com/watch?v=qIpByxym7Co
[20:38:16] <PetefromTn_andro> Thanks man
[20:38:17] <_DannyK_> Ty ssi
[20:38:51] <PetefromTn_andro> Man I'm getting excited about that lathe
[20:38:56] <ssi> :)
[20:39:11] <ssi> getting it saturday?
[20:39:33] <PetefromTn_andro> Having some trouble finding a loaner trailer I can use to go get it tho
[20:39:41] <PetefromTn_andro> Maybe
[20:40:42] <PetefromTn_andro> My neighbor said I could use his but then he checked it out and the damn tires are dry rotted
[20:42:08] <_DannyK_> Man that is pretty nuts..
[20:42:18] <_DannyK_> I didn't mean pretty, but nuts for sure..
[20:42:19] <PetefromTn_andro> I finished machining the first picatinny rail prototype for the feinwerkbau rifle riser I make today. It's going to the new owner tomorrow.
[20:44:30] <ssi> nice
[20:44:47] <PetefromTn_andro> http://i150.photobucket.com/albums/s83/matospeter/IMAG0171_zpsuxkzlzs7.jpg
[20:45:02] <ssi> looks great
[20:45:14] <ssi> I can't wait to get my machine making parts
[20:45:20] <ssi> I'm sad I've had so many damn setbacks
[20:45:38] <PetefromTn_andro> Yeah the Cincinnati kicks ass man.. you'll love it.
[20:45:59] <ssi> my pullstuds will be here tomorrow
[20:46:01] <PetefromTn_andro> What happened now?
[20:46:11] <ssi> eh nothing really
[20:46:21] <ssi> I'm having trouble getting the encoder-count hallstate code to work
[20:46:35] <ssi> I killed my 7i77 but I fixed it :P
[20:46:43] <PetefromTn_andro> Damn I'm sorry to hear that
[20:47:01] <ssi> but I have some contract work that I need to do, and so it'll consume a bit of my time
[20:47:15] <PetefromTn_andro> Nice
[20:47:26] <ssi> more pcb work for podponics
[20:48:23] <ssi> need to start working on the design for my next converter board too
[20:48:32] <ssi> I'm considering doing something crazy with it
[20:48:52] <PetefromTn_andro> You're a wild and crazy guy hehe
[20:49:03] <ssi> I'm gonna make this one a lot bigger
[20:49:06] <ssi> like the size of the drive
[20:49:19] <ssi> https://pbs.twimg.com/media/B0k78PGIQAAel1y.jpg:large
[20:49:23] <ssi> the size of that piece of acrylic
[20:49:29] <ssi> mounted like that
[20:49:41] <ssi> DB25 coming in at the bottom, by the power connector
[20:49:42] <PetefromTn_andro> Hm
[20:49:56] <ssi> connector along the near edge that wires up everything on the drive
[20:50:03] <ssi> then a connector on the top edge for the signals to the 7i77
[20:50:04] <ssi> BUT
[20:50:08] <ssi> I'm gonna give it some extra hardware
[20:50:14] <ssi> so that potentially it can be its own smartserial host
[20:50:31] <ssi> then, instead of a bundle of wires going to the 7i77, I'd just have a cat5 cable going to a 7i74 8x sserial board
[20:50:46] <ssi> then each drive just gets that one cable to it, and each one is like it's own little single-axis mesa daughterboard
[20:50:47] <PetefromTn_andro> Sounds good man
[20:50:57] <ssi> I'm not 100% confident I can pull it off
[20:51:00] <ssi> but it'd be really neat if I can
[20:51:29] <ssi> I'm gonna make the board flexible enough that it'll do what I need even if I can't get the fancy stuff to work
[20:51:45] <PetefromTn_andro> Are those drives still manufactured and are they all the same?
[20:51:50] <ssi> and flexible enough that it'll work with regular brushless motors with hall sensors as well as my redcaps
[20:51:53] <ssi> yeah they're all over the place
[20:52:05] <ssi> i bought six from the same vendor for $60 apiece
[20:52:21] <PetefromTn_andro> Yeah but I mean don't they
[20:52:33] <PetefromTn_andro> Make several different models
[20:52:38] <ssi> yeah they do
[20:52:52] <PetefromTn_andro> Are they all sharing the same chassis
[20:52:58] <ssi> eh not exactly
[20:53:06] <ssi> the mechanicals may not line up exactly with every model they make
[20:53:20] <PetefromTn_andro> That's maybe an issue if y
[20:53:33] <PetefromTn_andro> You intended to sell em
[20:53:45] <ssi> possibly, but it's not like they HAVE To bolt to the bottom of the drive like that
[20:54:23] <PetefromTn_andro> Well I'm all for anything that makes wiring up a cnc simpler and easier
[20:54:44] <ssi> yeah seriously
[20:55:06] <PetefromTn_andro> I'll be your guinea pig bitch with the new lathe LOL
[20:55:08] <ssi> :)
[20:55:33] <ssi> nice bonus: my old eagle license was limited in board size, so I couldn't make a board quite as big as I want to do for this
[20:55:48] <ssi> but because podponics needs my help in a hurry, and because forrest's new boards are HUGE, they had to buy me a pro license
[20:55:57] <ssi> so now I have effectively unlimited pcb capability
[20:56:59] <PetefromTn_andro> Sweet. Any word on those enclosures they wanted machined?
[20:57:10] <ssi> sorta
[20:57:24] <ssi> the reason they haven't come through with that stuff yet is because the mechanicals aren't sorted out on the rectifier boards yet
[20:57:32] <ssi> that's part of what I'm doing for them now
[20:57:43] <ssi> I just got done adding 3ph 480v fuses to the pcb and rerouting sections of it
[20:58:01] <PetefromTn_andro> Jeez
[20:58:18] <ssi> I need to figure out the comms connector clearances, which'll involve milling the pcb a bit until the connector fits and then figuring out what the box penetration will be
[20:58:19] <PetefromTn_andro> Sounds like a heavy duty board
[20:58:27] <ssi> and then figuring out the highvoltage cable penetrations
[20:58:43] <ssi> so I'm going to be sorting out the mechanicals, and likely I'll end up doing the drawings for the box mill work
[21:00:25] <PetefromTn_andro> Cool
[21:00:56] <ssi> long story short, I'll keep you up to speed about it
[21:01:12] <ssi> they're going to need something like 20 of these boxes as soon as the pcbs are ready
[21:01:15] <PetefromTn_andro> I wonder if I could adapt some of that live tool goodness to my new cnc lathe LOL
[21:01:28] <ssi> there's ten in a container I think
[21:01:35] <ssi> and they have something like forty containers in the atlanta farm
[21:01:54] <PetefromTn_andro> Well just let me know man and I'll get em cut for us.
[21:02:03] <ssi> yep
[21:02:13] <ssi> I'm not real sure what the best way to fixture these things is
[21:02:35] <PetefromTn_andro> I'll figure it out when I get one
[21:03:20] <ssi> sent you a picture
[21:03:37] <PetefromTn_andro> I've gotten pretty good at fixtures with all the crazy Shit we had to do in those job shops
[21:04:39] <PetefromTn_andro> So you already have a prototype then.
[21:04:50] <ssi> mechanicals aren't figured out yet
[21:04:58] <ssi> that one penetration is where the 480 3ph comes in
[21:05:02] <ssi> and they just drilled that by hand
[21:05:37] <ssi> but there'll be that, plus a square hole for a modular connector, plus a rectangular hole for a plate which'll have 13 penetrations for gland fittings or tubing epoxied in or something
[21:05:49] <ssi> it's all gotta be relatively water-safe
[21:06:01] <ssi> 700VDC in an environment where pressurized water sprays everywhere
[21:06:02] <ssi> it's fun :P
[21:06:30] <PetefromTn_andro> Interesting... Are all the entries on the sides?
[21:07:01] <ssi> everything'll be on that long side
[21:07:28] <PetefromTn_andro> Shit that's easy then
[21:07:32] <ssi> so my concerns about fixturing are that if you just clamp that up in a vise, it's gonna chatter
[21:07:40] <ssi> needs to be clamped between two big aluminum blocks or som ething
[21:07:43] <ssi> or maybe clamped to na angle plate
[21:07:46] <PetefromTn_andro> No Hell no
[21:08:07] <PetefromTn_andro> Gotta clamp it to a vertical fixture
[21:08:50] <PetefromTn_andro> Maybe screw it down using the original screws holes and some additional brackets
[21:09:01] <ssi> yeah that's not a bad idea
[21:09:30] <PetefromTn_andro> Clamp the whole thing to my big angle plate
[21:11:19] <PetefromTn_andro> I need to find a nice 5hp 3ph inverter duty motor for the lathe
[21:11:33] <PetefromTn_andro> Preferably cheap
[22:00:51] <zeeshan> son of
[22:00:58] <zeeshan> i accidently bought 3 phase panels :(
[22:14:48] <_DannyK_> ehh, sleep is under rated..
[22:15:11] <_DannyK_> I think I will go rate it now, have a good night..
[22:15:38] <zeeshan> ssi
[22:15:41] <zeeshan> lol those amc drives are big!
[22:15:43] <zeeshan> i was expecting smaller
[22:15:50] <_DannyK_> Capt, ssi, thanks for the link..
[22:16:14] <XXCoder> ow. usb chip company is killing clones of that usb chip
[22:16:41] <XXCoder> I', bit concerned because anyone may have clone and not know it. never attack customers :(
[22:19:18] <CaptHindsight> yes, a bit misguided
[22:20:00] <XXCoder> yeah
[22:20:03] <zeeshan> CaptHindsight:
[22:20:07] <zeeshan> have you played with 3 phase breakers?
[22:20:16] <zeeshan> 3 pole
[22:20:41] <CaptHindsight> yes, currently using them
[22:20:49] <zeeshan> have you ever used a 3 pole breaker
[22:20:52] <zeeshan> and left one pole empty
[22:21:10] <zeeshan> and used it as protection for L1 and L2 only
[22:21:26] <CaptHindsight> heh, in a pinch until the supplier delivered
[22:21:49] <CaptHindsight> or used 3 1 pole for 3 phase or 2 pole etc etc
[22:21:50] <zeeshan> i was looking at my literature from eaton
[22:21:58] <zeeshan> the 3 phase and single phase panels used the same chassis
[22:22:00] <CaptHindsight> done it all temporarily
[22:22:09] <zeeshan> we just didnt have the middle bus bar
[22:22:19] <zeeshan> and the spacing of the branches changed
[22:22:33] <zeeshan> help me decide
[22:22:40] <zeeshan> should i use this 3 phase panel as single phase? :D
[22:23:30] <zeeshan> https://www.flickr.com/photos/128539016@N05/15418489479/
[22:23:30] <CaptHindsight> it's not code to use 3 phase breakers that way
[22:23:35] <zeeshan> https://www.flickr.com/photos/128539016@N05/14984971333/in/photostream/
[22:23:38] <zeeshan> those are the 2 panels
[22:23:44] <zeeshan> no, i'm going to use 2 pole and 1 pole breakers
[22:23:50] <zeeshan> but ill have some empty slots
[22:23:54] <CaptHindsight> but you could use the 3 phase panel for 2 pole
[22:24:15] <zeeshan> i think i should have plenty of room
[22:24:19] <zeeshan> since i have those double 15 a breakers
[22:24:28] <zeeshan> which only take 1 spot
[22:26:13] <CaptHindsight> are you going to leave one bar unconnected or connect 1 pole to two bars?
[22:26:25] <zeeshan> the middle bar will be unconnected
[22:26:38] <zeeshan> i think i can pull it out
[22:26:41] <zeeshan> and yous ee those arms?
[22:26:49] <zeeshan> where the breakers catch to get power?
[22:26:54] <zeeshan> i might steal them from the other panel
[22:26:58] <zeeshan> and space them correctly
[22:27:04] <zeeshan> so i can use all spots
[22:27:11] <zeeshan> i got these for $20
[22:27:11] <zeeshan> !
[22:27:53] <CaptHindsight> inspectors would usually let it pass if we did that on old services
[22:28:18] <zeeshan> im looking at this pic https://www.flickr.com/photos/128539016@N05/15418489479/in/photostream/
[22:28:22] <zeeshan> notice the middle two arms?
[22:28:28] <zeeshan> from the A and C bus?
[22:28:34] <zeeshan> i can hook up 2 pole breakers right there
[22:28:39] <zeeshan> which i only need 2
[22:28:53] <CaptHindsight> yeah
[22:28:57] <zeeshan> all the 115vac can go where they already are right now
[22:29:00] <zeeshan> and at the top spot
[22:30:12] <zeeshan> my boss at eaton
[22:30:16] <CaptHindsight> I think I once ran out of room in a 3 phase delta panel and ran 1 20A circuit from B to the neutral
[22:30:21] <zeeshan> would be so mad if he saw me running square d panel
[22:30:21] <zeeshan> lol
[22:30:44] <zeeshan> i dont see why you cant do that?
[22:30:47] <zeeshan> sounds normal
[22:31:30] <zeeshan> btw CaptHindsight about your comment earlier
[22:31:32] <zeeshan> about the shooting
[22:31:38] <CaptHindsight> in a delta A and C would share the neutral, B would only be used with one of the the other phases A or C
[22:31:41] <zeeshan> i finally heard the name of the soldier, and it sounded familiar
[22:31:45] <zeeshan> it was one of my brothers friends
[22:31:45] <zeeshan> :/
[22:31:56] <zeeshan> they werent close
[22:31:58] <zeeshan> but hung out sometimes
[22:32:07] <CaptHindsight> small world sometimes
[22:32:10] <zeeshan> yea man
[22:32:26] <zeeshan> i liked trudeau's speech about it
[22:32:29] <zeeshan> "don't forget we're canadians"
[22:32:34] <zeeshan> "we're a democracy"
[22:32:50] <zeeshan> basically saying, its no time to think irrationally
[22:32:56] <CaptHindsight> back in the 80's we were watching the news and a story came out about two teens that jumped to their deaths...
[22:34:17] <zeeshan> and
[22:34:29] <CaptHindsight> somebody in the room made a comment about the event in a very crude way and one the teens best friends was (unknowingly) sitting next to him
[22:34:48] <CaptHindsight> awkward
[22:34:52] <zeeshan> wow
[22:34:59] <CaptHindsight> you never know
[22:35:22] <zeeshan> i think the saying goes
[22:35:26] <zeeshan> we're connected by like 10 people?
[22:35:27] <zeeshan> or something
[22:35:43] <CaptHindsight> or the 6 degrees
[22:36:00] <ssi> lol
[22:36:01] <zeeshan> =D
[22:36:03] <CaptHindsight> remeber the Kevin Bacon game?
[22:36:05] <XXCoder> its closer to 7 now
[22:36:13] <XXCoder> population has grown.
[22:36:32] <zeeshan> yes CaptHindsight thats it
[22:36:36] <zeeshan> i meant 6 :P
[22:36:44] <CaptHindsight> http://en.wikipedia.org/wiki/Six_Degrees_of_Kevin_Bacon
[22:36:53] <XXCoder> ah different one
[22:37:09] <CaptHindsight> wow 20 years ago
[22:38:13] <XXCoder> https://en.wikipedia.org/wiki/Erd%C5%91s%E2%80%93Bacon_number
[22:40:37] <Tom_itx> ssi, got your full blown eagle yet?
[22:40:40] <ssi> yep!
[22:40:47] <ssi> it's like full blown aids, but more expensive
[22:40:50] <Tom_itx> pretty nice isn't it?
[22:40:51] <zeeshan> blow anything up today ssi? :D
[22:41:00] <Tom_itx> 16 layers
[22:41:01] <ssi> zeeshan: not yet, but the night is young!
[22:41:03] <Tom_itx> no boundaries
[22:41:04] <zeeshan> told ya!
[22:41:06] <zeeshan> :D
[22:41:10] <zeeshan> you fixed something today
[22:41:11] <ssi> Tom_itx: it's the boundaries that are the big thing for me
[22:41:12] <zeeshan> not blew
[22:41:14] <zeeshan> tables have turned
[22:41:16] <Tom_itx> yeah
[22:41:18] <ssi> I dont care so much about 16 layers, 6 was enough for me
[22:41:22] <ssi> but 160x100mm is VERY limiting
[22:41:27] <Tom_itx> yup
[22:41:45] <Tom_itx> that's why i'm still using an old version :D
[22:41:47] <ssi> it just sucks that for a hobbyist it's 10x the price to make slightly bigger boards
[22:43:01] <Tom_itx> do they still send books with it or is it just a software key now?
[22:43:06] <ssi> just software key
[22:43:33] <ssi> I got the bulk of the pcb rework done that my client wanted
[22:43:37] <Tom_itx> nobody gives hardcopy anymore it seems
[22:43:43] <Tom_itx> nice
[22:44:06] <ssi> had to add on board fuses to a 480V 3ph mains input
[22:44:21] <ssi> and move and reroute a bunch of crap including the rectifiers in order to make room
[22:44:35] <ssi> was a bit of a hassle
[22:44:36] <ssi> heh
[22:44:36] <Tom_itx> how do you isolate the high voltage from the rest?
[22:44:58] <ssi> there are a couple pours at the top of the board that are the low voltage sections
[22:44:59] <XXCoder> put it in seperate room then lock door
[22:45:01] <ssi> but most of it is high voltage
[22:45:10] <ssi> it's a 700VDC power supply for leds
[22:45:23] <Tom_itx> i never bothered checking what UL etc say about that
[22:45:35] <Tom_itx> i think there's a distance requirement etc
[22:45:54] <Tom_itx> signs?
[22:46:07] <ssi> grow lights :P
[22:46:13] <Tom_itx> heh
[22:46:30] <ssi> it's .055" trace space for 700V
[22:47:05] <Tom_itx> what's the temp rise on the board?
[22:47:44] <ssi> 10C I think?
[22:47:49] <ssi> I'd have to ask the engineer that did these boards
[22:47:59] <ssi> I'm just reworking a little bit of this one for him
[22:48:50] <Tom_itx> i've never messed with anything more than regular mains
[22:49:09] <Tom_itx> and i'm not sure i did that right... just for my toaster oven
[22:50:06] <ssi> so I'm about to start working on my rev2 coverter board
[22:50:17] <ssi> and I'm debating whether I want to stick with cpld, or put a small fpga on it instead
[22:50:30] <ssi> small spartan6 LX is only $10
[22:50:40] <ssi> i'll need a prom for it, and probably more voltage rails
[22:50:47] <ssi> so it might add $10 or $15 to the total per board cost
[22:50:50] <ssi> but probabl yworth it
[22:50:52] <Tom_itx> which one loads the data externally?
[22:50:57] <ssi> fpga
[22:50:58] <Tom_itx> i can't remember...
[22:51:04] <ssi> cplds have internal flash, fpgas need an external prom
[22:51:09] <Tom_itx> so you'd need a eeprom etc
[22:51:20] <ssi> that's not such a big deal though
[22:51:51] <ssi> I want to put enough hardware on this board that I can use it to experiment with making a smartserial slave
[22:52:08] <Tom_itx> i noticed you talking about that earlier
[22:52:15] <ssi> I think it'd be super neat
[22:52:56] <Tom_itx> yeah
[22:53:11] <ssi> hm for $16 I can move up to the LX9
[22:53:17] <ssi> which is actually the same fpga that's on the new mesa cards
[22:53:31] <ssi> the $11 part is an LX4
[22:53:45] <ssi> 4k LEs vs 9k LEs
[22:54:36] <ssi> it's probably horribly overkill
[22:55:23] <Connor> ssi: Dude, I think you've went down the rabbit hole...
[22:55:29] <ssi> Connor: yeah, it happens :(
[22:55:45] <ssi> spinning a pcb takes long enough and costs enough money that you want to make it do everything!
[22:55:46] <Connor> ssi: Yup.. Happens to me ALL the f**king time.
[22:55:49] <ssi> hahah
[22:58:38] <Connor> ssi: Trying to figure out how I'm going to route my one-shot oiler stuff and what fittings and stuff I need..
[22:58:39] <ssi> what I need to do first is figure out all my IO
[22:58:49] <ssi> and then from the IO figure out what the smallest possible pld is
[22:58:53] <ssi> physically
[22:58:55] <Connor> Yup. I did the same thing
[22:59:33] <ssi> I want to make this one have provisions to take all the feedback signals into the pld, and have wiring options for regular hall motors as well as the fanuc motors
[23:00:15] <Connor> Had to take my iphone 4s apart.. stupid head phone jack was messed up.. I cleaned it and everything and still thought it had ear phones plugged into it.. damn.. talk about tiny ass screws.. that's the second time I've had to tear into that phone.
[23:01:16] <zeeshan> what does pld stand for
[23:01:25] <ssi> programmable logic device
[23:01:29] <zeeshan> ah
[23:01:31] <zeeshan> like a PLC? :D
[23:01:32] <ssi> and I'm using it in this context to mean a cpld or fpga
[23:01:36] <ssi> no
[23:01:36] <ssi> heh
[23:01:38] <zeeshan> nm
[23:02:14] <zeeshan> ssi why are you designing custom boards
[23:02:40] <ssi> because I can
[23:02:52] <zeeshan> what is point
[23:02:59] <ssi> the commutation conversion primarily
[23:03:15] <zeeshan> ah
[23:03:25] <zeeshan> fancy servos
[23:03:30] <zeeshan> need fancy electronics
[23:03:31] <zeeshan> i get it :P
[23:03:42] <ssi> proprietary servos need proprietary electronics
[23:03:51] <zeeshan> fakin fanuc
[23:03:51] <zeeshan> :)
[23:03:55] <ssi> exactly
[23:08:03] <zeeshan> yo ssi
[23:08:10] <zeeshan> your idea about ripping the guts out from a panel
[23:08:11] <zeeshan> would work
[23:08:25] <zeeshan> but i think you'd need bolt down circuit breakers
[23:08:39] <zeeshan> the guts off these things detatch very easily
[23:08:54] <ssi> hm
[23:09:23] <ssi> I wonder if i should make a provision to run a brake on these boards
[23:09:24] <ssi> that could be neat
[23:09:35] <ssi> small relay, phoenix block for the brake power supply
[23:13:06] <ssi> https://pbs.twimg.com/media/B0mlj77CEAAtGdj.png:large
[23:13:14] <ssi> that should cover pretty much any servo I might want to use
[23:13:35] <ssi> or should I include tach lines just for giggles
[23:14:48] <ssi> https://pbs.twimg.com/media/B0ml-GrIYAAFGOa.png:large
[23:14:49] <ssi> there
[23:15:33] <zeeshan> you have tachs?
[23:15:42] <ssi> no
[23:15:50] <ssi> but i want to make this generic enough that I can use it for any motor