#linuxcnc | Logs for 2014-10-19

[00:21:28] <zeeshan> if im driving 3 loads, 3A, 1A, and 9A from one 15A breaker
[00:21:34] <zeeshan> all 3 wires are 14awg
[00:21:51] <zeeshan> would it be advisable to put fuse protection for the 3A and 1A load
[00:22:00] <zeeshan> so put 5A and 3A fuse respectively?
[00:22:32] <zeeshan> just incase there is some sort of crazy overload within the 3A load that draws 8A for example
[00:22:38] <zeeshan> which will cause it to burn out
[00:22:44] <zeeshan> but the upstream wire will still be ok
[00:39:49] <somenewguy> if it is a motor, yes as it will save the motor
[00:40:07] <somenewguy> a stalled motor or wierd failure can draw amore than rated current, but not aact like a short
[00:40:17] <somenewguy> so a circuit w/ too much fuse overhead may not trip out
[00:40:42] <somenewguy> but otoh if the only real failure mode youexpect is a dead short, then just use the large fuse you need and it will protect everything
[00:41:48] <somenewguy> I have started using PTC fuses aka self-resetting or thermal fuses, which will reset and can handle large loads, but won't trip when big motors start up
[00:42:06] <somenewguy> they act like slow blow fuses basically, but you don't need to replace them when they go, so thye are good when you don't ahve good access
[00:42:24] <somenewguy> also since they are temperature based, you can also mount them on things that, when they get hot, you want power to stop
[00:45:34] <witnit> any yaskawa,motoman users out there?
[00:47:15] <witnit> the chatlogs seem rather dry on information regarding success rate with yaskawa
[02:08:50] <Deejay> moin
[02:09:26] <zeeshan> witnit: ive heard of one person using yaskawa drives
[02:09:31] <zeeshan> what are you looking for exactly?
[02:09:42] <zeeshan> are you talking about servo or spindle
[02:23:19] <MrSunshine> ive got a yaskawa vfd that i had for the spindle on my micromill =)
[04:12:09] <DoingItMyself> Working on a belt driven cnc. Any advantages to an omega drive as opposed to a fixed motor driven axis?
[04:27:13] <archivist> cannot think of any except build cost
[04:28:08] <archivist> you have to think of what you are cutting and speeds needed too
[05:33:16] <witnit> zeeshan I was looking to do an overhaul on a motoman AC servo system using a mesa card.
[05:33:42] <witnit> mrsunshine forward it please :)
[09:21:23] <JT-Shop> dang I left the garage door open last night... cool in here this morning
[10:04:27] <Loetmichel> i should apply to the police force... thats my 5th donut i am eating today ;-)
[10:05:29] <Loetmichel> JT-Shop: as long as all your tools still there... i live in a city where you will have an empty garage after leaving it open over night...
[10:12:19] <JT-Shop> I live out in the woods on a dead end dirt road off of a dirt road
[10:12:52] <Loetmichel> ok then... ;)
[10:14:45] <JT-Shop> besides It would take a small army to clean out my shop
[10:15:12] <zeeshan> rofl Loetmichel
[10:15:40] <zeeshan> JT-Shop: i live in what i thought was a quiet, secure neighbourhood
[10:15:48] <zeeshan> i left an alternator and battery outside my front door step
[10:15:53] <zeeshan> for 30 minutes while working on my car outside
[10:15:56] <zeeshan> and it was GONE!
[10:17:41] <Tom_itx> JT-Shop, any racoons pay you a visit?
[10:18:14] <archivist> we have scrap men travelling around all the time, never leave metallic items on show
[10:19:06] <Tom_itx> he sleeps on the porch with a shotgun
[10:20:16] <zeeshan> archivist: lol
[10:22:42] <Rab> witnit, I know people working on a Motoman, but it's more of an amateur effort: https://sudoroom.org/wiki/Giant_robot_arm
[10:23:36] <zeeshan> :D
[10:23:52] <zeeshan> i ordered so many parts this yestrday
[10:24:05] <zeeshan> im not allowed to spend anymore for the rest of the month
[10:24:06] <zeeshan> :P
[10:24:16] <JT-Shop> Tom_itx, they only "visit" once
[10:24:37] <zeeshan> 10hp sumitomo vfd, 0.5hp nfx9000 eaton vfd (i figured it would work better since it has modbus, and i have an extra one)
[10:25:10] <zeeshan> mesa hardware, interpolators, 5 amc servo drives, 5v meanwell supply, rs485 rs232 converter
[10:25:20] <zeeshan> this will be the first time im going to communicate with 3 drives over modbus
[10:25:22] <zeeshan> i hope it works out
[10:26:26] <Tom_itx> JT-Shop, did you get your ball mount done?
[10:30:55] <JT-Shop> nope
[10:31:14] <zeeshan> JT-Shop: the hydraulic power pack on your log splitter
[10:31:19] <zeeshan> how much power was the electric motor?
[10:31:36] <JT-Shop> it's an IC engine
[10:31:37] <Tom_itx> zeeshan it's not electric
[10:31:39] <zeeshan> did electric motor have (what happened to my english)
[10:31:41] <zeeshan> oh
[10:31:45] <zeeshan> what hp gas motor
[10:32:20] <JT-Shop> 7hp 190cc
[10:33:26] <zeeshan> i have not worked on hydraulic befores, but do you think its normal to have a .5 hp motor for a hydraulic power pack whos sole job is actuate the hydraulic cylinder for a power draw bar?
[10:34:23] <JT-Shop> if it is oem I'd guess it is correct
[10:34:40] <JT-Shop> I've never seen a hydraulic draw bar...
[10:35:07] <Rab> zeeshan, maybe you can rip it all out and use a linear actuator.
[10:35:28] <zeeshan> rab thats one thing i'd like to keep as is
[10:35:29] <zeeshan> to save $
[10:35:35] <zeeshan> thats why i got a vfd for the electric motor
[10:35:54] <zeeshan> im just a little drawn back by it because i have not worked on this kind of stuff before
[10:36:32] <Rab> zeeshan, seems like a lot of extra maintenance. Leaky seal could mess up your day.
[10:37:31] <zeeshan> haha
[10:37:39] <zeeshan> rab: might be hard to find a linear actuator for cheap
[10:37:44] <zeeshan> that can handle the drawbar loads
[10:37:49] <zeeshan> which i have no clue are what
[10:37:52] <zeeshan> i'd have top figure it out
[10:37:57] <Rab> Yeah, hydraulic is good for torque.
[10:38:08] <zeeshan> like they had pneumatics back then
[10:38:24] <zeeshan> there musta been a good reason they went through the hassle of putting a whole hydraulic power pack
[10:38:31] <zeeshan> and not use aire
[10:38:41] <zeeshan> cause my first thought was, replace it with a pneumatic cylinder
[10:39:17] <zeeshan> maybe their were trying to make the machine indepdenent from shop supplies except electricity?
[10:39:37] <zeeshan> this is the same company that said to run the machine off 240VDC batteries
[10:39:38] <zeeshan> LOL
[10:39:55] <Tom_itx> hydraulics are more 'position specific' than pneumatics
[10:40:38] <Speedevil> zeeshan: It's probably the power drawbar design was pulled from another machine that atually had a lot more hydrulics
[10:41:13] <zeeshan> that'd make sense
[10:41:50] <zeeshan> im going to try to power the hydraulic motor today
[10:41:57] <zeeshan> and the solenoids and try actuating the drawbar
[10:41:59] <zeeshan> i hope theres no leak!
[10:42:19] <Tom_itx> do you see any oil crud around the hydraulics?
[10:42:26] <zeeshan> no
[10:42:28] <Tom_itx> there probably aren't any if not
[10:43:58] <zeeshan> i might be a hoarder
[10:44:07] <zeeshan> but instead of scrapping the electrical cabinet this thing came with
[10:44:12] <zeeshan> http://i.imgur.com/SdfQVpI.jpg
[10:44:20] <zeeshan> if i rotate it 90 degrees
[10:44:23] <zeeshan> it makes a good work bench
[10:44:27] <zeeshan> =D
[10:56:05] <Speedevil> hah
[10:56:39] <Speedevil> Also - holy shit is that huge
[10:56:51] <zeeshan> 72"
[10:56:55] <zeeshan> so itll make a 6 foot work bench
[10:57:06] <zeeshan> i can store my buckets and shop vac under it
[10:58:36] <Rab> Looks like it got kicked in pretty badly at the bottom, maybe from someone trying to move it around with a forklift?
[10:58:37] <archivist> store a milling machine on it
[10:58:54] <zeeshan> rab that is a thin wall cover
[10:59:01] <zeeshan> that can be ubolted off
[10:59:05] <zeeshan> i was thinking off cutting that entire portion off
[10:59:21] <zeeshan> and keeping the portion thats reinforced with that rectangular bar
[10:59:55] <zeeshan> the table workbench is .185 thick
[11:00:07] <zeeshan> maybe through a wood panel on top of it
[11:00:32] <zeeshan> need to clean it up first :(
[11:18:05] <Loetmichel> *hrmpf* note to self: when cutting the cable to the little power regulator fan on the PC: cut one wire a time... not all at once... that was a cold reboot ;-)
[11:18:36] <Tom_itx> woops
[11:36:35] <ssi> lair82: around?
[14:21:36] <pfred1> Is there anybody out there?
[14:22:01] <zeeshan> :D
[14:22:13] <pfred1> !seen cradek
[14:22:14] <the_wench> last seen in #linuxcnc-devel 2014-10-19 17:55:42GMT 02:07:04 ago, saying it does smell like power supply or ram
[14:22:30] <zeeshan> !seen zeeshan
[14:22:30] <the_wench> last seen in #linuxcnc 2014-10-19 20:02:34GMT 00:00:29 ago, saying :D
[14:22:35] <zeeshan> haha cool
[14:22:39] <pfred1> oh so now he doesn't mingle with the riff raff?
[14:23:10] <pfred1> I wanted to tell him that axis crashed on his Debian build
[14:23:25] <pfred1> but when I updated I think it might have got fixed?
[14:23:36] <pfred1> I haven't seen it crash since
[15:42:05] <somenewguy> So I am revisiting my NGCGUI library, brining things on the server up to date, consolidating changes etc
[15:42:30] <somenewguy> to try and keep steam in the engine, does anyone have any requests for tools I should write? everything I'm doing is for a mill cause its what I have
[15:42:59] <somenewguy> bascially just universal tools to mill out basic shapes, I just added cutting rectangles with filleted corners
[16:25:59] <Deejay> gn8
[20:10:07] <zeeshan> what a mission
[20:10:12] <zeeshan> to move this mill without a forklift
[20:10:13] <zeeshan> http://i.imgur.com/EfFQS7a.jpg
[20:10:25] <zeeshan> pushed it to the back of the garage to free up some space
[20:13:38] <jdh> lose thecar
[20:13:57] <ssi> that's what I said
[20:14:00] <ssi> garages aren't for cars
[20:14:11] <zeeshan> why
[20:14:13] <zeeshan> i got tons of space now
[20:14:15] <zeeshan> =D
[20:14:21] <zeeshan> ssi
[20:14:24] <zeeshan> did you get those drives?
[20:14:31] <ssi> no
[20:14:31] <zeeshan> still scheduled for monday?
[20:14:35] <zeeshan> i couldnt wait
[20:14:40] <zeeshan> i ordered 5!
[20:14:47] <zeeshan> i hope they're functional
[20:15:44] <pfred1> zeeshan that's a big mill what are you making on it?
[20:15:53] <ssi> thought experiment
[20:15:59] <CaptHindsight> when did you Canucks start getting right hand drive cars? :0
[20:16:00] <ssi> if I have a 3000 line encoder on an 8 pole motor
[20:16:01] <zeeshan> converting it right now
[20:16:13] <zeeshan> CaptHindsight: thats my race car :D
[20:16:16] <CaptHindsight> or is that a trainer?
[20:16:18] <ssi> then I should have 750 lines per electrical revolution
[20:16:38] <ssi> there's six hall states per electrical rev, so 125 lines per hall state
[20:16:41] <ssi> sound reasonable?
[20:17:42] <zeeshan> 8 pole = 4 position
[20:17:53] <zeeshan> 750per rev
[20:17:59] * zeeshan doesnt know shit about hall states :(
[20:18:13] <zeeshan> those were the seconds
[20:18:18] <zeeshan> sensors that are 120 degrees apart
[20:18:54] <zeeshan> ssi i found an encoder on my spindle
[20:18:58] <zeeshan> 15 slot disk on it
[20:19:04] <zeeshan> i dont see an index slot
[20:19:13] <ssi> probably just a speed sensor
[20:19:14] <zeeshan> just 1 encoder with 3 wires coming out
[20:19:21] <zeeshan> :(
[20:19:44] <zeeshan> i really want a quadrature encoder on it
[20:20:43] <pfred1> I have a little benchtop mill/drill and i use it manually a lot but I couldn't imagine what I'd do with it CNCed
[20:21:29] <pfred1> I just have no call for that kind of parts really
[20:21:42] <zeeshan> you can make faces
[20:21:57] <zeeshan> pfred1: the goal wit hthe machine is to make ring gears, car related parts
[20:22:49] <pfred1> ring gears like for a differential?
[20:22:54] <zeeshan> yessir
[20:23:07] <pfred1> hmmm I thought those were easy enough to come by
[20:23:13] <zeeshan> depends on the application
[20:23:30] <pfred1> yeah there is a lot to setting gears up
[20:23:45] <pfred1> getting the heel right I think it is called?
[20:24:13] <zeeshan> different people call it different things
[20:24:21] <zeeshan> but i think youre talking about when you throw some paint on the gear
[20:24:24] <zeeshan> and check how its contacting
[20:24:28] <pfred1> yes
[20:24:29] <zeeshan> and adjust the preload accordingly
[20:24:41] <pfred1> it can be tricky stuff
[20:25:02] <zeeshan> the problem on the rx7 is, the spider gears in the helical lsd
[20:25:04] <zeeshan> tend to blow up
[20:25:07] <zeeshan> cause it's cast garbage
[20:25:17] <zeeshan> id like to make them out of 300m or 4340
[20:25:17] <pfred1> then put a different rear end into it
[20:25:20] <zeeshan> and case harden
[20:25:25] <zeeshan> no, thats the whole thing
[20:25:31] <zeeshan> i want to make a solution for the guys that dont wanna replace their whole rear end
[20:25:38] <pfred1> oh
[20:25:42] <zeeshan> a cobra 8.8 rear end costs like about 4000 by the time youre done
[20:25:48] <pfred1> well good luck finding jokers that can install gears right
[20:25:56] <zeeshan> a differential rebuild even if it costs 900 is worth it
[20:26:35] <pfred1> yeah I guess they can take the parts someplace and have someone that knows what they're doing do it for them
[20:27:20] <zeeshan> food time!
[20:27:51] <ssi> I'm not sure how to accurately locate the count to the index pulse in both directions
[20:27:56] <ssi> since it seems like index spans several lines
[20:28:19] <ssi> I guess I should take rising edge of index in one direction, and falling edge in the other, or something
[20:31:09] <ssi> turning cw, index rises with A low and B high
[20:31:41] <zeeshan> ssi
[20:31:42] <ssi> and falls with A high and B high
[20:32:42] <zeeshan> er.. brb
[20:32:44] <ssi> turning CCW, it rises with A high and B high, and falls with A low and B high
[20:32:46] <ssi> I can work with that
[20:34:51] <ssi> question is, which one of those edges is the commutation aligned to?
[20:35:10] <ssi> it's only three or four lines, so it's probably not too big a deal
[20:38:09] <ssi> looks like the 4bit code changes on the falling edge of index turning CW
[20:55:31] <zeeshan> my god
[20:55:35] <zeeshan> i posted something for scrap
[20:55:50] <zeeshan> its gone within 15 minutes
[20:55:52] <zeeshan> of the ad posting LOL
[20:56:01] <zeeshan> damn metal scavengers
[20:56:46] <CaptHindsight> ?
[20:56:55] <zeeshan> i ended up throwing away the cabinet
[20:56:58] <zeeshan> cause its too high even as a work bench
[20:57:05] <CaptHindsight> "rusty bed springs, free to good home"
[20:57:21] <zeeshan> http://i.imgur.com/XAWrU83.jpg
[20:57:24] <zeeshan> that stuff
[20:57:28] <zeeshan> =D
[20:58:04] <CaptHindsight> looks like you have very active metal scavengers
[21:30:19] <XXCoder> yeah
[21:30:22] <XXCoder> heys
[21:39:38] <zeeshan> hi
[21:39:39] <zeeshan> :]
[21:41:13] <XXCoder> whats up
[21:44:27] <Tom_itx> blue sky and taxes
[21:45:56] <pfred1> taxes are cheap here
[21:47:57] <humble_sea_bass> https://www.youtube.com/watch?v=Dw6cs7opvzA
[21:58:17] <XXCoder> fun
[21:58:33] <XXCoder> watching video
[21:58:57] <humble_sea_bass> https://www.youtube.com/watch?v=504I_hJDFck
[21:59:07] <XXCoder> unnesscarily handheld video. unwatchabe
[21:59:10] <humble_sea_bass> this one is just about carbon parts
[21:59:25] <humble_sea_bass> the guy is a bit of an autistic tool, but it is impressive
[21:59:47] <XXCoder> just saw parts. yeah. all carbon eh
[21:59:56] <XXCoder> motor parts made from carbon fiber
[22:01:20] <ssi> I have a good friend that's a composites engineer for Delta
[22:01:25] <ssi> it's amazing what he can do with carbon
[22:01:31] <zeeshan> ssi
[22:01:35] <zeeshan> with your hall motors
[22:01:46] <zeeshan> could you ditch the hall
[22:01:50] <zeeshan> and put an optical encoder on the shaft?
[22:01:54] <ssi> heh
[22:01:56] <ssi> they have no hall
[22:01:59] <ssi> they only have an encoder
[22:02:13] <zeeshan> i'm asking this because
[22:02:18] <zeeshan> i have a couple of DC motors in my basement
[22:02:22] <XXCoder> wonder if its possible to make everything in car out of carbon fiber. :P (besides brake discs and pads)
[22:02:25] <zeeshan> but they have no encoders/tach/hall
[22:02:26] <zeeshan> in em
[22:02:33] <zeeshan> i was thinking of buying a us encoder encoder
[22:02:35] <ssi> dc motors don't need hall
[22:02:35] <XXCoder> yes I am including bolts and such
[22:02:36] <zeeshan> and throwing it on there
[22:02:42] <zeeshan> OH
[22:02:52] <zeeshan> so if i throw an encoder on there
[22:02:54] <zeeshan> ill be good to go?
[22:02:57] <ssi> yep
[22:03:06] <zeeshan> i need this for my 4th and 5th axis
[22:03:27] <zeeshan> also another q for you
[22:03:32] <zeeshan> how good is the holding torque on servos
[22:03:37] <zeeshan> people say it 'nfg'
[22:03:43] <zeeshan> but practically...?
[22:03:53] <ssi> my servos are 6Nm stall torque
[22:04:34] <zeeshan> https://www.flickr.com/photos/128539016@N05/14912262293/
[22:04:43] <zeeshan> can you see the holding torque on there?
[22:04:47] <zeeshan> Mo max?
[22:04:56] <zeeshan> 7.8N-m?
[22:05:17] <ssi> that's probbaly peak torque
[22:05:34] <zeeshan> say you're sitting at 5.000"
[22:05:37] <zeeshan> and machining something
[22:05:42] <zeeshan> taking a nice heavy cut
[22:06:07] <zeeshan> people say that w/ a stepper of equivalent torque output as a servo
[22:06:10] <zeeshan> the stepper would hold its position
[22:06:19] <zeeshan> where a servo might drift 5.000 +/- 1 thou
[22:06:32] <ssi> depends on the servo and your tuning
[22:06:36] <zeeshan> something about that statement doesnt make sense to me
[22:06:40] <ssi> stepper will hold until it doesn't, then you lose steps
[22:06:45] <ssi> servo won't lose steps
[22:06:59] <ssi> if you put more force on it than it can hold, you'll get a follow error and teh machine will fault
[22:07:08] <zeeshan> so if the servo is tuned to be sensitive to 0.0001" and it detects it moves 5.0001"
[22:07:18] <zeeshan> it'll pump current to get inthe opposite direction
[22:07:20] <zeeshan> to 5.0000?
[22:07:24] <ssi> yes
[22:07:39] <zeeshan> so its always fluctuating to whatever your tuning was set to
[22:07:49] <ssi> servos are pretty much always moving
[22:07:55] <zeeshan> okay that makes sense
[22:08:02] <zeeshan> so really their statement has some merit
[22:08:06] <zeeshan> but it's a little misleading
[22:08:16] <zeeshan> because they make it sound like servos will move a lot
[22:08:34] <ssi> no more than your ferror
[22:08:43] <ssi> which by default in linuxcnc is .0005" I think
[22:09:04] <zeeshan> good enough for a mill :)
[22:09:33] * zeeshan is so excited to get this stuff working
[22:09:37] <zeeshan> i really hope it works out
[22:09:42] <zeeshan> and there is no suprises
[22:09:51] <zeeshan> i dont want to spend anymore money! :P
[22:10:18] <ssi> there're always surprises
[22:10:38] <zeeshan> i just hope those amc drives work
[22:10:42] <zeeshan> cause if they dont, it will be a bummer
[22:10:47] <zeeshan> the vfds are all brand new
[22:10:56] <zeeshan> the motors i tested
[22:11:22] <zeeshan> ssi do you know if theres an encoder setup for a spindle
[22:11:24] <zeeshan> that you can bolt on?
[22:11:32] <ssi> not that I'm aware of
[22:11:33] <zeeshan> the mount comes prefabricated
[22:11:34] <ssi> I made one for my lathe
[22:11:34] <zeeshan> with all 3 sensors
[22:11:39] <zeeshan> same here..
[22:11:44] <zeeshan> it was a bit annoying to get it aligned though
[22:11:51] <ssi> I'm worried about the encoder on my spindle motor
[22:11:57] <zeeshan> what kind is it
[22:11:57] <ssi> I wasn't able to get counts outo f it
[22:12:00] <ssi> not really sure
[22:12:11] <zeeshan> is there a trigger wheel?
[22:12:20] <ssi> lemme find the pic
[22:12:44] <ssi> https://pbs.twimg.com/media/B0W6_x0IQAAiHfB.jpg:large
[22:12:48] <ssi> I wish that were higher res
[22:13:16] <zeeshan> looks like some sort of optical disc
[22:13:22] <zeeshan> i see some slots
[22:13:25] <zeeshan> very fine ones
[22:13:29] <ssi> it's more like fingers
[22:13:33] <ssi> I'm wondering if it's hall or something
[22:14:22] <zeeshan> how were you powering it up
[22:15:11] <ssi> http://www.prototechnical.com/~imcmahon/spindle_encoder.jpg
[22:15:21] <zeeshan> oh isee it now
[22:15:26] <ssi> well the wirebook specifically says 5V
[22:15:27] <zeeshan> that looks like a hall effect
[22:15:29] <ssi> so I was giving it 5V
[22:15:35] <zeeshan> 100%
[22:15:39] <ssi> but it may be 24V if it's hall effect
[22:15:50] <zeeshan> ive seen car ones like that
[22:15:52] <zeeshan> with less teeth
[22:15:59] <zeeshan> they run off 12v
[22:16:24] <zeeshan> http://www.adaptronic.com.au/wp/wp-content/uploads/2014/03/PICT0003.jpg
[22:16:29] <zeeshan> those 2 sluts
[22:16:33] <zeeshan> se the cylinders?
[22:16:39] <ssi> yeah
[22:16:49] <ssi> http://www.ebay.com/sch/sis.html?_nkw=FANUC%20A20B%209000%200010%20ENCODER%20A20B90000010%20SPINDLE%20MOTOR%20SENSOR&_itemId=291044644591
[22:17:18] <zeeshan> lol 500
[22:17:22] <ssi> yeah heh
[22:18:21] <ssi> and as usual, there's zero documentation on it
[22:18:33] <zeeshan> it makes sense that if its the wrong voltage
[22:18:35] <zeeshan> like 5v
[22:18:39] <zeeshan> the mag field wont be strong enough
[22:18:49] <zeeshan> but its kinda risky putting 24vdc in there and have it blow up
[22:18:55] <ssi> yep!
[22:19:07] <ssi> http://www.cnc-shopping.co.uk/a20b-9000-0380-fanuc-sensor-for-spindle-motor-p-3241.html?osCsid=b0daac0997196c7b93a1856aee96f1dc
[22:19:11] <ssi> definitely looks like hall
[22:19:29] <zeeshan> can you trace the wires
[22:19:33] <zeeshan> and see where the go?
[22:19:34] <zeeshan> *they
[22:19:43] <zeeshan> and see if its getting run off a 24vdc supply
[22:19:48] <ssi> not really
[22:19:52] <ssi> it used to go into the spindle drive
[22:19:58] <ssi> I may be able to track it down, but I dunno
[22:20:10] <zeeshan> maybe the spindle drive
[22:20:12] <zeeshan> gives it the voltage
[22:20:15] <zeeshan> to gen the mag field
[22:21:06] <ssi> if it is 24V, i dunno how the hell I'm gonna condition the signals for the 7i77
[22:21:21] <zeeshan> dont you just supply the 7i77 with 24vdc?
[22:21:31] <zeeshan> to get 24vdc i/o?
[22:21:32] <ssi> yeah but the encoder interfaces are not at field voltage
[22:21:41] <ssi> and the field IO isn't fast enough for encoders
[22:22:00] <ssi> hm I wonder if I brought the wirebook home
[22:22:02] <ssi> I don't think I did :/
[22:22:24] <zeeshan> what voltage is the encoder inputs on the 7i77?
[22:22:26] <zeeshan> 5v?
[22:22:54] <ssi> yep
[22:22:59] <zeeshan> bah
[22:23:07] <zeeshan> BAH!
[22:23:17] <zeeshan> wait
[22:23:18] <zeeshan> im good
[22:23:27] <zeeshan> the interpolators output 5v ttl
[22:23:35] <zeeshan> i was thinking of the tachometer
[22:23:40] <zeeshan> that gets fed into servo drive
[22:24:07] <zeeshan> solid state relay it :)
[22:26:07] <zeeshan> to test those amc drives, i need to hook up the motor wires
[22:26:11] <zeeshan> and plug it in?
[22:26:22] <zeeshan> and then use a pot on the control side
[22:28:59] <ssi> hey look closer at my encoder pic
[22:29:06] <ssi> you can clearly see one of the pins is labeled "5V"
[22:29:32] <zeeshan> the very right one?
[22:29:33] <zeeshan> 5V
[22:29:34] <zeeshan> then VA
[22:29:35] <ssi> yep
[22:29:37] <zeeshan> hm
[22:29:58] <ssi> then /VA, VB, /VB, VZ, (OV?), /VZ
[22:30:43] <zeeshan> when you measured counts
[22:30:48] <zeeshan> did u use a scope?
[22:30:50] <zeeshan> or linuxcnc
[22:30:50] <ssi> no
[22:30:53] <ssi> just linuxcnc
[22:30:59] <ssi> I haven't looked at it terribly thoroughly
[22:31:13] <zeeshan> hal scope?
[22:31:15] <ssi> but I did ring out the cable between the motor junction box and the 7i77 and it was wired correctly
[22:31:21] <ssi> just the counts value of the encoder component itself
[22:31:25] <zeeshan> okay
[22:31:31] <zeeshan> that thing is a bit notchy sometimes
[22:31:39] <zeeshan> especially if ure moving the thing by hand
[22:31:54] <ssi> notchy != always 0
[22:31:57] <zeeshan> haha
[22:32:05] * zeeshan is giving you false hope
[22:32:24] <zeeshan> just hook a scope :P
[22:32:33] <ssi> I will at some point
[22:32:33] <zeeshan> or even a multimeter
[22:32:39] <zeeshan> i used a multimeter for mine
[22:32:41] <ssi> well that's the other thing
[22:32:45] <ssi> I hit A and /A with a meter
[22:32:48] <ssi> and got 0V on both
[22:32:50] <ssi> which shouldn't be
[22:33:40] <zeeshan> even if that circuit is blown
[22:33:46] <zeeshan> your machie is nice enough
[22:33:52] <zeeshan> that it gives you space to put your own optical encoder
[22:34:35] <ssi> maybe
[22:34:36] <zeeshan> still cant believe that thing is going for $500
[22:34:40] <zeeshan> are people retarded
[22:34:42] <ssi> that's USED too
[22:34:44] <ssi> I'm sure they're a mint new
[22:34:46] <zeeshan> its a fucking encoder.
[22:34:55] <zeeshan> you can go buy a car hall effect sensor
[22:34:57] <zeeshan> and throw it on there
[22:34:57] <ssi> everything fanuc is ridiculously expensive
[22:34:58] <zeeshan> and make it work
[22:35:27] <zeeshan> i guess these big industries that buy these machines
[22:35:32] <zeeshan> get RAPED on replacements
[22:35:43] <zeeshan> but they have the big bucks :p
[22:42:40] <ssi> ugh I wish my verilog was better
[22:58:03] <XXCoder> http://www.smbc-comics.com/?id=3514#comic
[23:03:35] <ssi> well
[23:03:38] <ssi> ISE is a pile of shit
[23:03:44] <ssi> I guess that means i'm done for the night
[23:03:55] <XXCoder> ISE?