#linuxcnc Logs
Oct 09 2019
#linuxcnc Calendar
12:41 AM * t4nk-freenode is now seriously contemplating holding the motor above the stove to remove the pinion thingy
12:45 AM * t4nk-freenode also knows that would probably mean the end of the motor
01:04 AM t4nk-freenode: *sigh*... won't budge even a micrometer
01:05 AM t4nk-freenode: now I feel like taking a saw out
01:05 AM sensille: is this some continuation of a recent conversation?
01:06 AM t4nk-freenode: like two lines above?
01:06 AM sensille: which motor? which thingy?
01:06 AM t4nk-freenode: ;)
01:07 AM t4nk-freenode: ok then ;)
01:07 AM t4nk-freenode: hang on
01:07 AM t4nk-freenode: https://duckduckgo.com/?q=epson+motor+replacement&atb=v143-1&iax=images&ia=images&iai=http%3A%2F%2Fwww.sdott-parts.com%2Fmedia%2Fcatalog%2Fproduct%2Fcache%2F1%2Fimage%2F800x800%2F9df78eab33525d08d6e5fb8d27136e95%2Fe%2Fp%2Fepson_l110-l210-l300-_l350-sx235w-sx435w-_sx440w_cr_motor-1548481-0.jpg
01:07 AM t4nk-freenode: something like that
01:08 AM t4nk-freenode: I want to remove the pinion, I believe it's called
01:08 AM sensille: you have the proper tool for that?
01:08 AM t4nk-freenode: no, not at all
01:09 AM sensille: gear puller or how it's called
01:09 AM t4nk-freenode: pinion puller ;)
01:09 AM t4nk-freenode: but it's not worth it to buy one for this
01:10 AM sensille: but heating the pinion is worth a try, what can possibly go wrong
01:10 AM t4nk-freenode: well, I just tested a bit, but the motor gets hot too
01:11 AM t4nk-freenode: don't know if it likes that too much
01:12 AM sensille: so go ahead with your saw :)
01:12 AM t4nk-freenode: already trying ;)
01:15 AM t4nk-freenode: lol... thusfar the cut in my finger is bigger than the cut in the cog
01:49 AM Deejay: moin
02:04 AM t4nk-freenode: ... it'll give way eventually I think, sensille
02:04 AM t4nk-freenode: heh, my saw has been utterly blunt for years too
02:16 AM t4nk-freenode: done!
02:16 AM t4nk-freenode: ;)
02:23 AM t4nk-freenode: motor survived too
03:29 AM taloot: Servo Drive Resolution. 24-bit (16777216 p/rev)
03:29 AM taloot: what mesa ccard for thii
03:29 AM taloot: this
03:30 AM taloot: its delta a3
03:46 AM pink_vampire: taloot: are you trying to make a cnc with atomic resolution??
03:47 AM sensille: 24-bit resolution ... what might be the precision?
03:47 AM sensille: maybe 14 bit? 16?
03:47 AM taloot: no this is the best servo iiii found
03:48 AM taloot: its 24 bit
03:48 AM pink_vampire: my encoders are 8192 per rev
03:48 AM taloot: absloute
03:48 AM taloot: ii just want smooth machiine
03:49 AM pink_vampire: taloot: you can use then for astrophotography
03:49 AM sensille: heaviii iii repeat
03:50 AM pink_vampire: taloot: how much rpm?
03:50 AM taloot: 6000 max
03:50 AM taloot: 3000 rated
03:50 AM taloot: its delta a3 servo
03:50 AM pink_vampire: how meany axes you have?
03:50 AM taloot: 3
03:51 AM taloot: fber laser machiine
03:51 AM sensille: it might be the best servo, but i doubt the encoder has 24 bit precision
03:52 AM taloot: http://www.deltaww.com/products/CategoryListT1.aspx?CID=060201&PID=4102&hl=en-us&Name=ASDA-A3+Series
03:53 AM taloot: cost me 380$ 700watt 80mm frame
03:53 AM sensille: yeah, they don't say anything about precision
03:53 AM pink_vampire: so 16777216*3000/60*3/1000000000 = 2.5 Giga steps per second
03:54 AM pink_vampire: I don't think FPGA can even deal with that
03:54 AM taloot: e gear
03:55 AM pink_vampire: ?
03:55 AM sensille: also i don't find the info how many pulses per rev this thing has
03:55 AM taloot: 24 bit
03:55 AM sensille: no
03:55 AM taloot: do the math
03:55 AM sensille: they only say 'the encoder enhances the precision'
03:56 AM sensille: which is quite vague
03:56 AM taloot: 24-bit Absolute Type Encoder
03:56 AM taloot:
03:56 AM taloot: 16,777,216 pulses/turns ensure precise positioning
03:56 AM taloot: Steady performance at low-speed enhances machining quality
03:56 AM taloot: Keeps motor's position during power shortage
03:56 AM pink_vampire: even if you only control 1 axis it is 0.83 Giga steps per second
03:56 AM taloot: so i will use step/pulse
03:56 AM sensille: of course fpgas _could_ do that
03:56 AM taloot: 4mhz
03:57 AM taloot: wiith e gear
03:57 AM taloot: thiis is my back up plan
03:57 AM pink_vampire: what is " e gear"?
03:58 AM taloot: its optiiiion in delta software
03:58 AM pink_vampire: NFI
03:59 AM taloot: where i can control pulse/rev
03:59 AM pink_vampire: in hal?
03:59 AM taloot: no no
03:59 AM taloot: inside delta software
03:59 AM pink_vampire: NFI
04:00 AM taloot: http://filecenter.deltaww.com/Products/Images/06/060201/ASDA-A3_feature9_EN.jpg
04:01 AM sensille: oh, did i mix up precision and accuracy again? damn. so, what's the accuracy of that thing?
04:02 AM taloot: we need to ask delta
04:03 AM taloot: whats the point from linking the enccoder to linuxcnc or to the servo drer
04:03 AM taloot: driiver
04:04 AM pink_vampire: I'm imagine the phone call: Hi delta, I'm a poor guy with rusty machine in the basement, what's the accuracy of that thing?
04:07 AM sensille: you could probably produce semiconductors with that kind of accuracy ...
04:08 AM pink_vampire: sensille: mechanical AFM
04:10 AM pink_vampire: my ballscrew is 5mm / rev, so on my machine 5/16777216 = 298 picometer per step!
04:11 AM pink_vampire: The diameter of a hydrogen atom is 212 picometer
04:11 AM sensille: minus 10000000 picometer backlash
04:12 AM pink_vampire: sensille: you can set backlash compensation in linuxcnc
04:13 AM pink_vampire: and then you can mechanically split water to oxygen and hydrogen
04:14 AM sensille: split.gcode
04:15 AM pink_vampire: of course you must clamp it in the vise fist, probe the molecule, and then set your offsets,
04:16 AM sensille: use a block of ice so you can so several in one go
04:16 AM XXCoder: hey pink
04:17 AM sensille: but better keep it at 0K
04:17 AM pink_vampire: one ice cube will make a benchtop mill a high volume production machine.
04:17 AM pink_vampire: hi XXCoder
04:19 AM XXCoder: so far 2 days was super boring
04:19 AM XXCoder: broaching and now drill/slot
04:19 AM pink_vampire: broaching!! sounds fun
04:19 AM XXCoder: not so much when its 150 parts
04:21 AM pink_vampire: mmm
04:21 AM pink_vampire: let me see
05:07 AM Tom_L: morning
05:07 AM XXCoder: yo
05:26 AM jthornton: morning
05:27 AM XXCoder: yo^2
05:29 AM * jthornton has to go out in the cold and find a phillips screwdriver for a 00 screw
05:30 AM XXCoder: cold, uphill, both ways? ;)
05:41 AM miss0r: I have a PCB here with a few fried components on it. I am having a hard time telling what size a particular resistor is, as it has been toasty at some point. Would any of you guys care to take a guess or do you have some nice idea as to how to guess the value/clean it up to see the colour codes? https://imgur.com/a/DZKy2eU
05:43 AM sensille: is it symmetrical? so probably the same value as the left one?
05:44 AM miss0r: I have no real proof of that :)
05:44 AM XXCoder: it dont look same as others
05:44 AM miss0r: I did think along those lines as well
05:44 AM XXCoder: color code: gold thicjk, gold? unknown, unknown, pink?
05:44 AM miss0r: XXCoder: it may have been replaced earlier
05:44 AM XXCoder: you may be able to wash off burn marks so you can see color code
05:45 AM sensille: otherwise draw some surrounding schematics
05:45 AM miss0r: its been toasted through'n through
05:45 AM XXCoder: not sure if thats 4 colors or 5, middle may be just birn
05:45 AM sensille: are the routed to an IC? values might be in the application notes for that
05:46 AM XXCoder: miss0r: you'll have to try to clean that with ip and see if you can see all colors
05:46 AM miss0r: hmm... yeah..
05:46 AM miss0r: It does go to an IC
05:47 AM miss0r: The one in the frame, actualy. The "white" one
05:48 AM sensille: 4x optocoupler
05:48 AM sensille: so the actual value might be not that important
05:50 AM miss0r: the non-fried one, with simular?? colors also lands on that same IC
05:52 AM sensille: can't really see the routing on the pic
05:53 AM miss0r: the through hole that is soldered over that is closest to the trafo is connected to the resistor on the left
05:53 AM miss0r: the other throughhole that is soldered over is connected to the burned resistor and runs underneath to the leg on the far right on top of the IC
05:54 AM sensille: i don't think it has been fried by current running through the IC
05:54 AM sensille: unless that is fried, too
05:55 AM miss0r: at some point in a distant past this board got a new input trafo (out of frame) because it was set to 220v input during a test, and wasn't reset to 380v for the install. So it died
05:55 AM miss0r: Chances are it took stuff down with it.
05:55 AM miss0r: I would assume that resistor there is a pull-down resistor
05:55 AM miss0r: and it god a kick during that period
05:56 AM sensille: i'd start by drawing out the schematics surrounding the resistor
05:56 AM sensille: with that it's probably easier to get help
05:57 AM sensille: or ... maybe find another picture of that device on google? :D
05:57 AM miss0r: hmm.. its a long shot - so I will try :D
05:57 AM sensille: or ask the manufacturer?
05:57 AM sensille: wild thoughts ...
05:58 AM miss0r: braillon TR90
05:58 AM jthornton: got the motherboard off my phone... now for the screen
05:58 AM miss0r: only low res pictures... :D
05:58 AM sensille: FBI could zoom in on those
05:59 AM miss0r: and find a fingerprint, which they then zoom in on and determin the DNA profile of the last repairman
05:59 AM sensille: but of course he's dead by now
06:00 AM miss0r: *unrelated accident*
06:00 AM sensille: deadly resistor
06:01 AM sensille: so ... where are both ends of that resistor connected to?
06:01 AM miss0r: for gods sake... I'll draw out a bit of schematic
06:02 AM miss0r: negative on the rectifyer bridge next to it
06:03 AM sensille: so GND of the board?
06:04 AM miss0r: meh... it would seem that it is not that widely used
06:04 AM miss0r: it connects to another IC and then to one of the output pins for external connections
06:05 AM miss0r: I think it makes sense it is also a 10k resistor like the other one
06:06 AM miss0r: I'll rip it out and try to measure it - who knows it might very well still work :D
06:07 AM XXCoder: it literally says what resistance value it is by color bars :)
06:08 AM XXCoder: im pretty sure its probably either infinite or zero resistance by now anyway
06:08 AM miss0r: in 30 seconds we will know
06:09 AM sensille: it's a good idea anyway. looks like it might still work
06:09 AM miss0r: okay.. add some more time. I can't be bothered to get the 'fast' soldering station. The one in the shop here is a bit slow to warm up
06:10 AM miss0r: okay.. scratch that... it is ridiculous slow
06:11 AM jthornton: now I really have to clean up down here that tiny metal clip just went flying off
06:11 AM XXCoder: fun
06:13 AM miss0r: it measures 43k
06:14 AM miss0r: which is somewhat unlikely, as it seems clear the first 'ring' is brown
06:14 AM sensille: not touching the probes?
06:14 AM miss0r: nope
06:14 AM XXCoder: https://www.electronics-tutorials.ws/resistor/res_2.html
06:15 AM sensille: oh, i haven't seen those types in decades
06:16 AM jthornton: must have been on my head, when I leaned down to do the next step it was there
06:16 AM sensille: miss0r: if some carbon has been burned off it makes sense to measures higher :)
06:17 AM miss0r: it honnestly looks like brown-black-brown to me
06:18 AM miss0r: which would explain why it gets so hot working as a pulldown in a 24v environment
06:18 AM XXCoder: try some ispy on it see if color is better
06:18 AM sensille: looks like black-black-black to me :P
06:19 AM miss0r: lol
06:19 AM XXCoder: heh
06:20 AM miss0r: ispy didn't change anything
06:21 AM miss0r: but looking at it under another light source makes me have no doubt it is a brown black brown
06:21 AM miss0r: But I think that is a mistake made by a former repair guy
06:21 AM XXCoder: oh thats extra fun
06:23 AM sensille: 100Ohm across 24V? can't survive that
06:23 AM miss0r: my point exactly
06:23 AM XXCoder: was that orginial point of failure?
06:23 AM miss0r: I think I'll place a 10k in there
06:24 AM miss0r: I don't know
06:24 AM miss0r: I just landed the job, and as with so many jobs the error was not present while I was looking at it.
06:24 AM miss0r: But once in a while the magnet chuck would not turn on.. and this PCB is the controller for that. So I think I will go ahead and replace this resistor, all caps and the relays
06:26 AM XXCoder: no circuit sheet?
06:28 AM miss0r: well, I can see the end of the resistor that is connected to the upto is also ending at the external terminal end and it does nothing else. the other end of the resistor is connected to gnd
06:31 AM miss0r: am I completely crazy here or does what I say make sense?
06:32 AM sensille: not to me
06:32 AM sensille: "to the upto is ..."
06:32 AM miss0r: ha...
06:33 AM miss0r: is=IC
06:34 AM miss0r: ti pin 1 on the IC
06:34 AM miss0r: to*
06:35 AM miss0r: and pin two goes to the same GND through one of the 2.2kohm resistors
06:35 AM miss0r: scratch that...
06:35 AM miss0r: pin 2 does that.
06:35 AM * sensille leans back
06:36 AM miss0r: okay okay okay.. I'll make a sketch
06:47 AM miss0r: sensille: It is added to the bottom: https://imgur.com/a/DZKy2eU
06:49 AM miss0r: sensille: Wouldn't you agree it should also be a 10k resistor?
06:50 AM sensille: i would
06:50 AM miss0r: I think that resistor blew out back when the input voltage was set wrong. and it was replaced wrongly.
06:51 AM sensille: so someone applied 24V to the input for an extended period of time
06:51 AM sensille: but it that case nothing else should be fried
06:51 AM miss0r: I'm not sure what that input it for.. no documentation whatsoever - and I do not have the machine here, it is at a clients place.
06:51 AM miss0r: indeed. other than the trafo that was replaced after the fact.
06:51 AM sensille: hm
06:52 AM miss0r: that input might very well be release magnet.. and if it is floating...
06:53 AM sensille: but the 24V output is protected by 820ohm, so not the full 24V for the blown resistor
06:53 AM sensille: half a watt
06:53 AM miss0r: Indeed. it that was the case I don't think it would just be blackened
06:53 AM sensille: but also for the 820ohm R
06:54 AM miss0r: the 820ohm one is a 1watt resistor
06:54 AM sensille: so it adds up
06:54 AM miss0r: Indeed
06:55 AM miss0r: Thanks for the help - I'm glad theres other people in here not just doing plug'n'play electronics :)
06:55 AM sensille: might also explain why it failed sporadically
06:55 AM miss0r: absolutly
06:55 AM miss0r: a floating signal cannot be trusted. especially not knowing theres a VFD on that machine as well
06:55 AM sensille: because the voltage divider might bring the oc to the edge of triggering
06:55 AM sensille: 820/100
06:55 AM sensille: instead of 820/10000
06:56 AM jym: Let the blackout begin!
06:57 AM miss0r: o_0
06:57 AM miss0r: sensille: Indeed
07:00 AM sensille: miss0r: but that also means you can't really test it, right?
07:00 AM jym: 800,000 people without power in California
07:02 AM miss0r: sensille: Right. even if I *could* test it here, theres no realy way of telling if the repair worked, since it was a periodical error
07:03 AM taloot: https://miniboard.en.alibaba.com/search/product?SearchText=LPT
07:03 AM miss0r: so. I feel this is a smoking gun. For good measure I am replacing the three electrolyte caps on there as well, along with the load relays
07:03 AM miss0r: (as per costumers request)
07:03 AM miss0r: but I do believe the resister was the fault
08:06 AM jthornton: yippie my phone works again
08:15 AM miss0r: Who you gonna call?
08:17 AM jthornton: going to sync the two phones together now lol
08:17 AM jthornton: I have 2 galaxy s4's
08:23 AM jthornton: it was a bitch getting the shattered screen off lol, glass everywhere and then I vacuumed up the front facing camera and had to sift the dirt to find it
08:25 AM SpeedEvil: :)
08:28 AM SpeedEvil: YOu have checked the mic - sometimes they object to things like that.[
08:34 AM miss0r: I was hoping for a 'ghost busters'-answer...
08:57 AM beachbumpete1: Mornin' :)
09:04 AM dan3wik is now known as dan2wik
09:04 AM tumdedum_ is now known as tumdedum
11:39 AM Loetmichel: FINALLY! 7 paid holidays approved by the boss... MAAAn that was DUE!... (still have 12 days left from 218 and 25 days from 2019...) kinda burned out atm.
12:01 PM taloot: http://store.mesanet.com/index.php?route=product/product&path=83_86&product_id=311
12:01 PM taloot: this work with any networ
12:07 PM taloot: do i still care about latency if i use 7i96
12:17 PM pcw_home: Yes but you need only reliable 1 KHz communication
12:19 PM pcw_home: (because you only run a servo thread at 1 KHz. Higher speed things like step generation or encoder counting are done in the 7I96
12:20 PM taloot: whats the factor controles that
12:20 PM taloot: aha i got
12:21 PM taloot: i will show you my latency test and tell if its fits or not
12:22 PM pcw_home: For example with step generation, LinuxCNC sets the step rate every 1 ms or so but the hardware generates the actual step timing
12:22 PM taloot: https://ibb.co/z6hqMyn
12:25 PM taloot: and whats the maxmuim step rate
12:25 PM taloot: 10mhz? but the driver should be special
12:26 PM taloot: Delta Driver liner uses diffrencial signal @ 4mhz
12:27 PM taloot: can mesa generate similiar signal
12:29 PM Connor: pcw_home: Having issues getting a 7i76e working.. I'm not sure what the deal is. Can see the card just fine when I query it. I can ping it. But, Using a standard XYZ setup, it doesn't want to send pulses out to the stepper. Basic PncConf setup.. trying to test via test panel, nothing. Run up LinuxCNC and I get follow errors and no movement. Even through a O-Scope on the step/dir pins.. Either held High or held low..
12:29 PM Connor: I'm not sure what I'm missing.
12:31 PM taloot: Sourcing output version
12:32 PM taloot: or sinkking
12:33 PM pcw_home: 7I96 can generate 10 MHz step rates and has differential step/dir outputs
12:34 PM taloot: good then i will buy 2 for both machines have
12:34 PM pcw_home: Connor: following errors usually indicate a setup error of some kind (or communication errors)
12:35 PM Connor: I had issues with the Pncconf running, something about 'kernel_version'
12:36 PM Connor: Found something about modifying the check to just return true..
12:36 PM pcw_home: Not sure that matters (kernel version should be a dont-care with Preempt-RT)
12:36 PM pcw_home: (its only important for RTAI)
12:37 PM Connor: I'm not sure what config error I would have. No encoders, no analog output, no digital I/O, just the step/dir gens
12:37 PM Connor: Yea.. I just did a return true on that function to by-pass the error.
12:37 PM taloot: do i need special network chip?
12:37 PM Connor: Wasn't sure if it was related to the issue.
12:37 PM jym: pcw_home: Got Electricity?
12:37 PM pcw_home: Yep (for now)
12:38 PM jym: pcw_home: On generatore since 3am
12:38 PM taloot: usa and electricity cut
12:38 PM taloot: or u are in india?
12:38 PM pcw_home: conner: can you email your current hal/ini files to Mesa, Ill take a look when i get a chance
12:38 PM taloot: :)
12:39 PM Connor: pcw_home: Yea.. I'll have to get it. I'm not at the machine. I was just trying to get some sort of movement.. I've not even tweaked the steppers per mm yet or anything.
12:40 PM pcw_home: PGE (our local power company) is very careful now about starting wildfires so is doing now what they should have done before and turning off power when the fire danger is high
12:41 PM sync: well, they really should just clear the shrubbery that could touch the power lines but that's work
12:41 PM pcw_home: well actually they should have maintained the lines better
12:41 PM jym: pcw_home: Don't be so kind,
12:41 PM jym: there ya go
12:41 PM pcw_home: yep, but that cuts into shareholder profit...
12:41 PM jym: sync: They cleared 50ft on each side of the lines. That's not the issue.
12:42 PM jym: err 25ft each side
12:42 PM Connor: High wind conditions bringing down the lines.. Should be better built to withstand the high winds.
12:46 PM SpeedEvil: How many miles of line are in question?
12:47 PM SpeedEvil: It seems very likely to me that even one thing to watch the line every 50m would not be a significant expense.
12:55 PM drdoc: hey, does anybody have a Male A to Male A USB cable they could buzz out for me?
12:56 PM drdoc: the one that supplies 5VDC to the ChinaCo parallel breakout boards
01:01 PM gloops: i thought everyone had a bag of tangled cables with plenty of those in it
01:03 PM drdoc: gloops: I've never seen one in the flesh
01:03 PM drdoc: with a host-side connector on both ends?
01:06 PM gloops: yeah, you must have some
01:06 PM gloops: well this is going to be my next little creation https://ibb.co/BNDwtWy
01:07 PM gloops: made models in blender, will cut out, make nould, cast in cold bronze resin
01:11 PM drdoc: gloops: if I did, I wouldn't be asking for the pinout.
02:50 PM CaptHindsight: jym: are you on back-up power yet?
02:51 PM jym: CaptHindsight: Since 3am
02:51 PM jym: CaptHindsight: I got a clamp on amp meter, and I put it one one half and reads apx 5am, but on the other half only 120mA
02:51 PM jym: 5A*
02:53 PM jym: CaptHindsight: I cna't figure how there is almost zero draw on that?!
02:53 PM jym: CaptHindsight: and probably explains why I periodically pop the circuit breaker on the generator
02:53 PM CaptHindsight: I'd need to see a drawing of how the loads are attached
02:54 PM jym: CaptHindsight: Heh, I wish I knew myself. It's almost like ALL the 220V are on one half, and the 110V is on the other.
02:55 PM CaptHindsight: maybe your wiring is not connected as imagined
02:55 PM jym: CaptHindsight: I have all the 220V appliances disabled.
02:55 PM jym: CaptHindsight: at the panel, or MY wiring?
02:55 PM jym: or even the generator?
02:55 PM CaptHindsight: don't know
02:55 PM CaptHindsight: just checking on you
02:56 PM jym: CaptHindsight: The generator has a NEMA L14-30
02:56 PM CaptHindsight: too tired to analyze right now
02:56 PM jym: CaptHindsight: and I apprecite it =)
02:56 PM jym: could 120mA just be wiring alone?
02:57 PM CaptHindsight: it's a trickle
02:57 PM CaptHindsight: 0.12A x 120V = 14.4W
02:58 PM jym: CaptHindsight: So some device, not just wiring resistance?
02:58 PM jym: or parasite
02:58 PM CaptHindsight: do you have 120/240 out of the generator? 3 wires, hot -- neutral -- hot ?
02:59 PM CaptHindsight: read the current from all 3
02:59 PM drdoc: L14 is usually hot-neutral-hot-ground, yes?
02:59 PM jym: CaptHindsight: 4 wires (L14-30), but I'm using it ti backfeed for 120V only, no actual 220V in use.
03:00 PM drdoc: jym: what's between the generator and devices?
03:00 PM CaptHindsight: http://www.generatorsforhomeuse.us/wp-content/uploads/l14-30r.png
03:01 PM drdoc: if you're wired into the house panel, I'd expect all the 120 to be on one leg
03:01 PM jym: CaptHindsight: yeah, that's it, X is 5A, and y is 120ma
03:02 PM CaptHindsight: what about Neutral?
03:02 PM jym: drdoc: I'd hope not, tehn the loads would be unbalanced I would think.
03:02 PM jym: CaptHindsight: Same, 5A
03:03 PM drdoc: jym: every builder-installed residential panel I ever worked in pulled all the 120V off the same leg
03:03 PM jym: This panel is funny, but all the 220V breakers are on the right side.
03:03 PM jym: drdoc: Really?!
03:03 PM drdoc: yes
03:03 PM jym: still sounds dumb to me =)
03:03 PM CaptHindsight: we would balance all the 120V loads
03:04 PM drdoc: CaptHindsight: from grid power?
03:04 PM CaptHindsight: yes
03:04 PM drdoc: it's cheaper to run one bus
03:05 PM jym: drdoc: I'm not talking cheaper, but better
03:05 PM drdoc: Oh, I know
03:05 PM jym: ya cheap bastards!!! =)
03:05 PM drdoc: I'm talking general contractors
03:05 PM CaptHindsight: sounds like country stuff
03:05 PM drdoc: CaptHindsight: Texas
03:05 PM CaptHindsight: we don't do that in the big cities
03:05 PM jym: hahahahahaha
03:05 PM drdoc: where the consumer does not matter
03:06 PM jym: drdoc: I'd be your worse nightmare if ya pulled that shit =)
03:06 PM drdoc: "country stuff" around here is usually better quality, especially concerning electrics
03:06 PM jym: drdoc: I know enough to be dangerous =)
03:07 PM drdoc: jym: you'll never, ever catch me pulling that shit
03:07 PM jym: drdoc: You would be surprised =)
03:07 PM drdoc: doing it correctly is worth a $5 bus bar and 8 minutes
03:08 PM jym: but gotta save that $5
03:08 PM drdoc: I'm neither saying it's a good thing to do, nor that I'd ever condone it
03:08 PM drdoc: but given what loads you're seeing
03:09 PM drdoc: that's the first thing I'd look at
03:09 PM jym: Yeah, I was just hoping that wasn't the case, the panel is WAY too tight to get in there and do anything.
03:11 PM CaptHindsight: https://www.thespruce.com/balancing-electrical-loads-1152238
03:11 PM drdoc: the first place I lived in Austin was a duplex, built in the '70s
03:11 PM drdoc: at the time just outside city code jurisdiction
03:11 PM CaptHindsight: http://advanceelectricaltraining.com/advance-electrical-training/balancing-electrical-loads/
03:11 PM drdoc: not a piece of conduit in the building
03:12 PM jym: The generator has a 220/110 switch, but I don't think the L14-30 applies when switched to 120
03:12 PM drdoc: all clad aluminum romex, connected with copper-rated wire nuts
03:12 PM jym: drdoc: ceramic tube and knots??
03:13 PM CaptHindsight: rarely ever done touched Romex
03:13 PM Tom_L: jym, how's it goin livin off grid?
03:13 PM drdoc: I found this out when I was replacing a rusted socket on the porch light and the neutral wire shocked the living shit out of me
03:13 PM jym: Tom_L At least I'm not alone.
03:13 PM drdoc: jym: just Romex stapled to the studs & trusses
03:13 PM CaptHindsight: the space people tell me that Romex is not used in the big cities since the unions wanna keep conduits since it's more work to install
03:14 PM jym: drdoc: ah
03:14 PM drdoc: ground to neutral was carrying 55V
03:14 PM CaptHindsight: this keeps the union electricians busy
03:14 PM drdoc: CaptHindsight: the romex was nasty, but not really the issue
03:15 PM CaptHindsight: unions are the work of the devil
03:15 PM drdoc: copper-rated wire nuts are /12 the price of clad-rated
03:15 PM drdoc: err
03:15 PM drdoc: 1/2
03:15 PM CaptHindsight: liberals demons conjured them up to steal money from good business people
03:16 PM drdoc: clad wire expands/contracts more with temp changes, and copper rated nuts eventually stretch too much to keep a good connection
03:17 PM drdoc: I just moved
03:18 PM drdoc: unions were a great idea and a good thing 70 years ago
03:18 PM CaptHindsight: well the NEC (National Electric Code) is based on the NYC and Chicago codes of years ago
03:18 PM CaptHindsight: and we all know what is wrong with anything from big cities
03:18 PM drdoc: so
03:19 PM drdoc: Male A to Male A USB cable
03:19 PM CaptHindsight: load balncin is fer wimps
03:19 PM drdoc: is it a straight pinout?
03:19 PM drdoc: pin 1 to pin 1, etc?
03:19 PM drdoc: I know, I know
03:19 PM drdoc: I'm trying to discuss linuxcnc again
03:21 PM Tom_L: linuxcnc doesn't use usb cables
03:21 PM jym: I WISH I could understand what the hell this 220@20A / 120@30A switchon the genrator REALLY does. I've called the facotry and they can't tell me.
03:22 PM Tom_L: does it parallel the output in phase?
03:22 PM jym: Tom_L IDK
03:22 PM Tom_L: drdoc http://www.hobbytronics.co.uk/usb-connector-pinout
03:22 PM Tom_L: IDE
03:22 PM Tom_L: :)
03:23 PM jym: It's ealry enough I think I'm gonna call them and ask. bbiab
03:23 PM Tom_L: find a smart one
03:26 PM drdoc: Tom_L: I know the standard pinout for the connector
03:26 PM drdoc: I don't know whether a double A male cable is at all standard
03:26 PM drdoc: thanks, though
03:26 PM Tom_L: a meter will tell you
03:27 PM drdoc: it would if I had one
03:27 PM drdoc: this BoB came without, and I didn't notice that the USB connector was a host-side socket
03:28 PM Tom_L: 1 should still go to 1 2-2 3-3 4-4
03:28 PM drdoc: ok
03:28 PM drdoc: that's what I need to know
03:29 PM Tom_L: but the pins are backwards on male/female
03:29 PM Tom_L: if you look at the chart i posted
03:29 PM drdoc: yes
03:29 PM drdoc: I can make the cable if I know what goes where
03:29 PM drdoc: my lady person is ridiculously hard on charging cables
03:30 PM drdoc: I have 4 or 5 that have broken connectors on the phone end
03:58 PM jym: CaptHindsight: Ok, I flipped the switch and got nothing..
04:00 PM jym: So I'm guessing the switch parallel's the 120V amperage to 30A, but only on X (or Y) leg
04:02 PM jym: Speculating here, but if all my load so far just on one leg, then rewiring the cable from XX/YY to XY/XY should do the trick?
04:09 PM jym: CaptHindsight: AH, L14-30 to RV adapter wiring... http://www.wakeworld.com/forum/attachment.php?s=4552e1881ee51c021a18403d6af5f5de&attachmentid=19110&stc=1&d=1326471131
04:11 PM CaptHindsight: we could find out since you have a volt and amp meter but I don't have the energy
04:11 PM CaptHindsight: I'm really weak at the moment, got ill
04:11 PM jym: CaptHindsight: If I'm reading this right, if I just swap X and Y on one end of my cable, I shuld be good to go... http://learningpeople.co/wp-content/uploads/2019/03/30-amp-generator-plug-wiring-diagram-twist-lock-plug-amp-wiring-diagram-info-generator-adapter-home-improvement-grants-mn-home-improvement-contractors-new-york.jpg
04:12 PM jym: CaptHindsight: I hope you feel better and thanks =)
04:12 PM CaptHindsight: yes, sprung a leak now my blood count is really low
04:13 PM jym: CaptHindsight: a leak? what did you do?
04:13 PM jym: CaptHindsight: If you die, I'm gonna kill ya!
04:24 PM Deejay: gn8
05:21 PM _unreal_: sup
05:21 PM _unreal_: got all kinds of cool shit from work today
05:21 PM _unreal_: got a 33' blob
05:21 PM _unreal_: "water launch
05:21 PM _unreal_: "
05:21 PM _unreal_: FREE
05:22 PM _unreal_: sigh
05:22 PM _unreal_: no one here
05:23 PM _unreal_: quick shower then
05:24 PM _unreal_: when I get back I need help figuring out how to do a good clean SAFE dual boot of lcnc with win10
05:24 PM _unreal_: win10 is installed already
05:24 PM _unreal_: and I split the 1tb drive in half
05:53 PM _unreal_: sigh
05:57 PM * jthornton is back from a road trip to St. Charles...
07:34 PM _unreal_: welcom back
07:34 PM _unreal_: :0
07:34 PM _unreal_: :)
08:12 PM jym: jthornton: How far is that? What's there (if anything)?
08:18 PM pink_vampire: CaptHindsight: Hi
08:19 PM jym: hey pinky
08:40 PM Elmo40: anyone running 36 or 48V systems with steppers?
08:40 PM Tom_L: 48
08:42 PM Elmo40: nice. i figure why not use 48V? every torque curve looks WAY better at higher voltage.
08:45 PM jym: Elmo40: rule of thumb is 20 to 25 times the rated coil voltage
08:46 PM jym: Well, the Klein CL800 OL's when starting the car =)
08:46 PM Elmo40: interesting. didn't know that. i'll see if they offer coil specs and i'll hang onto the lower ~20x to be safe.
08:46 PM jym: Elmo40: hang on...
08:47 PM jym: Elmo40: You might have to read this 2 or 3 times, there's a LOT of good info in there that's easy to overlook... https://www.geckodrive.com/support/step-motor-basics.html
09:12 PM jym: Tandem breaker??? https://diy.stackexchange.com/questions/42315/using-a-30-amp-tandem-circuit-breaker-for-a-120-240v-circuit
09:19 PM Elmo40: that is wrong
09:20 PM Elmo40: they are space saver breakers
09:21 PM Elmo40: i have not seen 30A space savers before...
09:22 PM Elmo40: and what the paragraph says is BAD! any 240 circuit should have both lines connected at the breaker so it kills both sides if one trips.
09:26 PM Tom_L: the holes in the lever are for pins for that purpose but they are absent
09:26 PM Tom_L: that or a clip like the big one
09:27 PM Elmo40: not in this case. he has a 240V object going across 2 different breakers.
09:27 PM Elmo40: water heater and dryer
09:27 PM Elmo40: as in a following image, one leg on one breaker and another leg on another breaker
09:27 PM Elmo40: that little connector pin won't work in this situation
09:50 PM _unreal_: My new machine I'm bilding slowly I have 36v
09:53 PM _unreal_: So I'm trying to figure out how to do a CLEAN install of lcnc dual boot
09:53 PM _unreal_: I have win10 installed already
09:53 PM _unreal_: on my controller machine
10:08 PM Tom_L: w10 dirtied it up already
10:10 PM _unreal_: I have to be able to do cad using that computer as well
10:11 PM _unreal_: blieve me I dont like it any better then you do
10:11 PM _unreal_: So how would I go about getting an EFI to boot LCnc?
10:12 PM _unreal_: Thats my other issue the computer is an efi or what ever its called machine.
10:12 PM _unreal_: the I burned weezy
10:21 PM Tom_L: did you see that script you could run to disable alot of the kruft in w10?
10:23 PM Tom_L: https://gist.github.com/alirobe/7f3b34ad89a159e6daa1
10:23 PM _unreal_: looking
10:25 PM Tom_L: since it's a new install you might benefit from it
10:29 PM _unreal_: not even sure how to run it
10:30 PM Tom_L: https://github.com/Disassembler0/Win10-Initial-Setup-Script#usage
10:30 PM Tom_L: simply double-click on the Default.cmd file and confirm User Account Control prompt
10:32 PM _unreal_: hum
10:32 PM _unreal_: 11:30 I'm not doing anything tonight thas for sure
10:32 PM Tom_L: just thought you might want to see it
10:33 PM _unreal_: its interesting. I just dont know the in's/outs of it
10:33 PM _unreal_: regardless I'm more interested in getting lcnc co-installed
10:34 PM Tom_L: https://markontech.com/linux/tutorial-how-to-dual-boot-windows-10-and-debian-9/
10:35 PM _unreal_: the efi/bios is my bigger issue
10:58 PM Rab_ is now known as Rab
11:10 PM Elmo40: but linux can handle that
11:41 PM drdoc: _unreal_: you still there?
11:46 PM Elmo40: found out why X was skipping. acceleration was too high. dropped a hundred and runs like a champ
11:46 PM pink_vampire: hi