#linuxcnc Logs

Sep 26 2017

#linuxcnc Calendar

12:05 AM * evilroot sighs
12:41 AM MrTrick: I need to machine a round block of aluminium on top and bottom, and I need the alignment to be spot-on.
12:42 AM MrTrick: I've got a 600x900 2200W router, but no probing instruments and a bog-standard g-code controller.
12:42 AM andypugh: What alignment?
12:42 AM MrTrick: that the top and bottom need to line up, rather than cutting one side, then having the other side be off.
12:43 AM MrTrick: needs to be centered and have the same angle
12:43 AM andypugh: Perhaps you can make a jig with holes for pegs that match features on the first side and align the second side.
12:43 AM Wolf__: so ends need to be parallel and square to the cylinder?
12:44 AM Wolf__: sounds like lathe work
12:44 AM andypugh: So, clamp a sheeto af aluminium / MDF / engineering cheese to the mill bed and drill some alignment holes. Mill the first side including the features that match the holes, then remove the work, insert pegs and fit the work onto the pegs.
12:44 AM MrTrick: Wolf__: not quite, unfortunately.
12:45 AM MrTrick: andypugh: might work, there's a rectangle in the centre.
12:45 AM MrTrick: HOWEVER, I did try something similar for another thing I milled, and it ended up being off by almost 1.5mm
12:45 AM MrTrick: Not sure quite how
12:46 AM Wolf__: oh, feature on the ends
12:46 AM Wolf__: I know how I would do it on a mill…
12:46 AM Wolf__: might need to use the router to make a fixture for the part holding for 2nd op
12:47 AM MrTrick: (I faced and cut the bottom, cut an alignment square into some scrap, turned the stock over and tried to cut the other side using the same coordinates I had from cutting the alignment square
12:47 AM MrTrick: my concern is I did exactly that and was still off.
12:47 AM Wolf__: too loose?
12:48 AM MrTrick: So given constraints (this machine, no special features in machine like probing support) and abilities (could justify buying some more equipment for it if it would solve the issue)
12:48 AM MrTrick: No the feature was perfect, just translated by some weird amount for unknown reasons.
12:49 AM Wolf__: fixture move?
12:49 AM MrTrick: Say I've cut a square peg fixture that the part will be clamped down to - and I don't trust the current machine coordinates. What would my options be for re-aligning?
12:49 AM andypugh: Sounds like you just messed up :-) Maybe you failed to mirror a dimension when you flipped the part?
12:49 AM MrTrick: always possible. :-\
12:50 AM MrTrick: however last time was a piece of wood with replacement cost of ~$10. This time is a block of aluminium with a replacement cost of ~$300 and lead time.
12:50 AM andypugh: Well, make it from wood first…
12:51 AM MrTrick: yeah, or wax or something.
12:51 AM * MrTrick ponders how ironbark compares to aluminium for machinability
12:51 AM Wolf__: or dye it and put some layout lines on the 2nd op side
12:52 AM MrTrick: hmm, actually there are some small hole features. I suppose I could test with them too.
12:52 AM MrTrick: What about alignment instruments, any recommendations there?
12:53 AM Wolf__: makes for a fun puzzle w/out a idea of what the part looks like =P
12:53 AM Wolf__: if you don’t have alignment instruments how do you know the test part is off?
12:54 AM MrTrick: It is a bit obvious if the other parts don't line up, or if wall thicknesses are different.
12:54 AM andypugh: MrTrick: I have a Renishaw probe, they sometimes come up cheap on eBay. I also have a coaxial indicator, which occasionally works better for some jobs. Then there is possibility of mounting a webcam in a toolholder and picking up corners or reference marks.
12:55 AM MrTrick: shiny pricey
12:55 AM MrTrick: :-)
12:55 AM MrTrick: the webcam idea is interesting
12:55 AM Wolf__: $200 in to my renishaw setup
12:56 AM MrTrick: I would probably have difficulty mounting it properly centered in the spindle.
12:56 AM andypugh: Wolf__: I have a £50 “Renshaw” probe. Always worth searching ebay for mis-spellings :-)
12:56 AM Wolf__: mi5 w/ mp1 probe with the proper shank for my tool holder setup
12:57 AM Wolf__: i got lucky =)
12:57 AM andypugh: MrTrick: If the camera is in the spindle then the pixel that doesn’t move when you rock the spindle by hand is directly under the spindle axis.
12:57 AM andypugh: You don’t actually need such great precision.
01:00 AM Wolf__: oh , btw that gear spreadsheet worked a treat
01:00 AM Deejay: moin
01:01 AM Wolf__: turns out gears on that lathe are mod 1.25mm
01:01 AM Wolf__: I might just 3d print some to try out
01:02 AM andypugh: Worth a try
01:02 AM Wolf__: using abs ones on my 7x10 so why not lol
01:03 AM Wolf__: makes a nice fuse point for a oops as well lol
01:04 AM Wolf__: I still need to find out if the lead screw out of another lathe will fit, have had too much other stuff going on though to bother to check
01:22 AM MrTrick: andypugh: interesting point
01:26 AM archivist: andypugh, and sometimes the correctly spelled :)
01:27 AM archivist: untested spares and repairs has got me some in good condition
01:33 AM IchGucksLive: good morning from germany
01:33 AM andypugh: I have a spares-or-repairs TP200, but I can’t even figue out how it is meant to work.
01:34 AM andypugh: Good evening from Nevada.
01:34 AM IchGucksLive: isent it morning in nevada
01:34 AM IchGucksLive: 1am,
01:34 AM andypugh: 2303. It’s west-coast time.
01:35 AM IchGucksLive: ok
01:36 AM IchGucksLive: im off 2 the main DAY of corn harvest toiday is the day of heavy duty 2 harvesters 12 trucks and nearly 100 people on farm
01:36 AM archivist: andypugh, not maneged to get one of those yet, Renishaws pics show about 6 or more strain gauges, I got a PHD10 and there was half a TP20 in the box
01:36 AM IchGucksLive: get a impresion https://www.youtube.com/watch?v=f_PslBNAT7s
01:38 AM archivist: must be some form of encoded signal though
01:39 AM IchGucksLive: archivist the digiliser
01:40 AM IchGucksLive: tool size messurment
01:40 AM IchGucksLive: till eveniung
01:40 AM IchGucksLive: im off ;-)
02:57 AM Loetmichel: mornin'. Anyone has a link to a (german purchaseable) Jump start battery pack that isnt 90% "enclosed air" with a superflous mini compressor and a 12V 7Ah SLA alarm battery inside that isnt capapble of high currents? Cheap would be nice, too.
02:58 AM archivist: just get a real car battery
03:01 AM Loetmichel: archivist: less than transportable
03:05 AM archivist: ! not that heavy for a small one
03:06 AM archivist: often have handles these days
03:08 AM Loetmichel: To clarify: i dont need to have any compressor in it, just fat (preferably LIfepo4) battery and some beefy clamps. USB output would be nice, though.
03:29 AM nullifier: On the servo amps... just trying to talk to one to configure it. Can't seem to even get a serial connection going though. I'm about 85% sure I have the connection right, but the manuals that I can find have diagrams for a single connector for GPIO, these have 3.
03:30 AM archivist: gpio is not serial generally
03:32 AM nullifier: I know. The diagram I have that shows the serial output does match the connector on the amp... at least that one. Of course, it's a male 20 pin MDR.
03:35 AM nullifier: I'm pretty sure they are currently configured to run a much, much larger motor than I have wired up. It's a Sanyo AC servo motor, but only 400w. The drive is good for 4.5KW.
03:36 AM archivist: it wont notice such a little motor :)
03:36 AM nullifier: That was my hope, but it also won't drive it.
03:38 AM nullifier: I can certainly feel the stator lock up when it turns on and 'tries' initially, but it goes no further and throws an error on its 7 segment display saying either the config is wrong or the encoder is wired wrong... I can't tell if the encoder is wired right because I can't see the trace input
03:38 AM archivist: swap the a/b see if that corrects it
03:40 AM archivist: differential encoder?
03:41 AM nullifier: Yep, 3 pairs
03:41 AM nullifier: and I can definitely see what colors are what on the motor side, but input to drive is ???
03:42 AM nullifier: I swapped AB and AC... no change
03:42 AM nullifier: didn't feel any different either
03:44 AM archivist: did you scope the encoder signal
03:44 AM Loetmichel: three phase servo?
03:44 AM Loetmichel: If so: tried switching two phases?`
03:44 AM Loetmichel: instead of the encoder...
03:45 AM nullifier: hmm no... it's marked UVW, wiring is 123... I went with the obvious 1=u
03:46 AM nullifier: going to look at the scope now
03:47 AM Loetmichel: nullifier: regardless of that: try switching two phases
03:47 AM Loetmichel: sometimes the rotating direction and the encoder direction dotn match
03:47 AM Loetmichel: that would be the typical error after it trying to "position"
04:37 AM nullifier: I can't for the life of me get any kind of scope waveform from the encoder
04:37 AM nullifier: so that's probably telling
04:38 AM nullifier: It's definitely turning on and using about 50ma...
04:38 AM nullifier: I was thinking maybe the pulses were so short... but no. even at a microsecond, nothing
04:38 AM archivist: if it needs pull ups (open collector) then you see nothing
04:39 AM nullifier: it would? hmmm... so... like 220?
04:39 AM archivist: may just see noise level change slightly
04:39 AM nullifier: 220ohm inline
04:40 AM nullifier: forgive me if my electric brain isn't working.. 4AM...
04:40 AM archivist: to 5v, but some are 12v some true differential
04:41 AM nullifier: yeah it's definitely +-5, says so in the spec sheet
04:41 AM The_Ball: Hi guys, running M4 S0 and then later S100 does not turn on the spindle, the documentation suggests it should though
04:41 AM The_Ball: Doing M4 S100 does turn on the spindle
04:41 AM The_Ball: motion.spindle-speed-out-abs stays at 0 when just adjusting S up from zero
04:42 AM nullifier: I don't think you can do S100 without saying what axis you are referring to
04:44 AM archivist: s is spindle speed not an axis?
04:44 AM nullifier: Which spindle?
04:45 AM nullifier: You could set M3 to S100 too...
04:46 AM archivist: m3 os clockwise he wants anti
04:46 AM nullifier: I know but... how does the gcode
04:46 AM nullifier: I think some preinterpreters would not know
04:46 AM archivist: http://linuxcnc.org/docs/html/gcode/m-code.html#mcode:m3-m4-m5
04:47 AM archivist: seems to be coded correctly bug or there is something else
04:48 AM The_Ball: FYI setting up a laser cutter, S is used for power
04:48 AM nullifier: I just mean you can't do S100 alone.
04:48 AM archivist: nullifier, it is documented that you can
04:48 AM The_Ball: Laser software seem to like doing M4 S0 then changing power on the fly with S
04:48 AM archivist: If, later, the spindle speed is set above zero (or the override switch is turned up), the spindle will start turning.
04:49 AM nullifier: It doesn't say just use S... if you did that on a Minimill it would ignore it
04:49 AM nullifier: but I could be wrong
04:51 AM nullifier: http://www.ti.com/lit/ds/symlink/am26ls31.pdf
04:51 AM nullifier: This is what's wired to the encoder output on these servos
04:54 AM nullifier: hmmmmm I wonder if there's a sense wire I'm missing here
04:54 AM nullifier: looks like it has an enable/disable line
04:57 AM archivist: it has a few modes depending on enables see page 10
04:57 AM archivist: on the lines where it has an H is is acting as open collector
04:58 AM archivist: it is
04:59 AM archivist: try pull ups to 5v see if it then provides a signal
05:00 AM archivist: actually I am wrong, those are driven high/low when active
05:00 AM archivist: Z is the open condition
05:03 AM nullifier: mmmmm well... there's a pulse
05:03 AM nullifier: and there's the problem
05:03 AM nullifier: it's blue/brown in the manual... white brown on the connector... SOB
05:06 AM jthornton: morning
05:07 AM XXCoder: yo
05:17 AM jthornton: chickens are not sitting on the roost at night so I'm putting another roost in that is lower to the floor
05:24 AM XXCoder: yeah?
05:24 AM XXCoder: roost is a row of boxes with nests for them to rest in>?
05:25 AM gregcnc: dang I couldn't sleep so i got up 4:40am. Before my coffee is made my 9 and 7yo are up and asking for breakfast?
05:25 AM XXCoder: yet another famous moron beliving in flat farth
05:26 AM XXCoder: *earth
05:26 AM jthornton: nest box is where the lay eggs, the roost is a round bar that they sleep on like birds sleep on a tree branch
05:26 AM XXCoder: ahh
05:27 AM XXCoder: I wish I could just teleport him to space so he can behold sphere earth before he dies.
05:28 AM archivist: you can use a water level to prove the earth is flat
05:29 AM XXCoder: yep, earth is locally flat
05:30 AM archivist: a water level works for miles not just local :)
05:30 AM XXCoder: yeah. and "miles" is still local.
05:30 AM archivist: nope, works the for the whole world, its calle seal level :)
05:31 AM archivist: sea
05:31 AM XXCoder: seal level is a sphere. lol
05:31 AM XXCoder: *sea
05:31 AM archivist: but its level therefore flat
05:32 AM XXCoder: lol
05:33 AM XXCoder: just remember, if world was flat, cats would have pushed everything off by now.
05:36 AM archivist: cats only work on local shelves and tables
05:36 AM XXCoder: lol
05:37 AM archivist: buggers know they are doing it as well :)
05:37 AM XXCoder: ya know
05:38 AM XXCoder: space program would be around a thousand times easier with disk world
05:38 AM XXCoder: just get cats to push rocket off edge
05:47 AM The_Ball: int emcSpindleSpeed(double speed, double css_factor, double offset){ if (emcmotStatus.spindle.speed == 0) return 0; //spindle stopped, not updating speed return emcSpindleOn(speed, css_factor, offset);}
05:47 AM The_Ball: archivist, so if S=0 it'll stay off
05:48 AM Loetmichel: anyone risking a wager how much capacity and current capability REALLY is in there? -> http://www.ebay.de/itm/68800mAh-Power-Bank-Auto-Starthilfe-Jump-Starter-Akku-Notfall-Booster-Ladegerat-/282472783282
05:48 AM archivist: The_Ball, that is not what that doc states
05:48 AM XXCoder: people is back from "mars" https://www.theverge.com/2017/9/24/16356876/nasa-hi-seas-mars-analogue-mission-hawaii-mauna-loa
05:49 AM The_Ball: archivist, the source trumps the docs ;) but yes the docs do not match
05:49 AM archivist: The_Ball, which is the bug though
05:51 AM XXCoder: Loetmichel: multiple it by 80% chinese stats
05:51 AM XXCoder: so its 55040 mah
05:52 AM Loetmichel: XXCoder: maybe divide that by ten, then it comes in believeable regions
05:52 AM XXCoder: lol
05:54 AM * Loetmichel just paid €440 for a new BMW E36 windshield and "replace everywhere" service at the company where i work... worth every penny for that service alone, not having to drive somewhere and take a day off work to get it done...
06:00 AM gregcnc: power bank test https://www.youtube.com/watch?v=nIKunXKBsDU
06:02 AM XXCoder: I have nice meter
06:02 AM XXCoder: all I need is to buy usb led light, let it run out
06:07 AM jthornton: damn this pc has a new annoying feature that when you click on something it sticks to the pointer even if you let go
06:07 AM XXCoder: sounds like assistant is enabled
06:10 AM XXCoder: Loetmichel: "there is no fuse, that 12v is always on even when off"
06:10 AM XXCoder: harzous.
06:10 AM XXCoder: hazardous
06:13 AM mrme_ is now known as mrme
06:19 AM XXCoder: Loetmichel: 2 Ah apparenrlt
06:19 AM Loetmichel: XXCoder: normal for those kind of packs. thats why the big plug has a cover
06:23 AM XXCoder: I see
06:25 AM Loetmichel: you dont want to attach a manual switch or relais to it that is capable of handling 300++amps strarting current... would double the size of the thing
06:25 AM XXCoder: makes sense
06:35 AM nullifier: Well... it turns the motor a full rev now before it craps out
06:36 AM nullifier: and clearly it is applying some epic current. I made the mistake of thinking I could stop it by hand. Yeah... keyways are sharp.
06:39 AM XXCoder: ow
06:39 AM XXCoder: you ok?
06:42 AM XXCoder: hurricane starting to enter usa :(
06:42 AM XXCoder: this time north of floria
06:42 AM XXCoder: an anothger one to east to it
06:43 AM XXCoder: bad hurricane season this year
07:31 AM IchGucksLive: Big Thunder in Germany full downforce
07:31 AM IchGucksLive: no rain in forcast from weatrherman
07:31 AM IchGucksLive: what a mess
07:32 AM IchGucksLive: no rain on the raidar
07:32 AM IchGucksLive: http://www.unwetterzentrale.de/uwz/
07:32 AM IchGucksLive: but had to stop harvest
07:32 AM IchGucksLive: going for soome food
07:33 AM IchGucksLive: later
07:34 AM mrme_ is now known as mrme
07:42 AM fablab: hi freinds, I am back on work to get linux cnc to work
07:42 AM fablab: :D
07:45 AM fablab: Friends i cannt resolve this error message
07:45 AM fablab: RTAPI: Unexpected realtime delay on task1
07:46 AM fablab: I did the latency-test
07:46 AM fablab: and adjusted the values like in the doc recommanded
07:56 AM fablab_: hey
07:58 AM fablab_: I did a latency-test again and getting Max jitter servo : 450.000 ns and base thread 400.00
07:58 AM fablab_: 400.000
08:00 AM JT-Shop: that is some very high jitter numbers, check for things in the bios that might be interfering or is this a laptop?
08:00 AM fablab_: it is a pc
08:01 AM fablab_: I put parallel port on EPP
08:03 AM archivist: bios, power saving and video etc
08:04 AM MarcelineVQ: my goodness, IchGucksLive is on a roll https://www.youtube.com/watch?v=6hk09X_bQ_g
08:04 AM archivist: is the video on the mainboard or a plug in card
08:06 AM fablab: in card
08:07 AM fablab_: hi
08:08 AM fablab_: archivist, could that be a problem ?
08:08 AM fablab_: MarcelineVQ, Ichgugslive ist not live :D
08:08 AM JT-Shop: hmm this pc has a max jitter of 3700 :)
08:08 AM MarcelineVQ: fablab_: No but I wanted to say that in case he checks logs :>
08:09 AM fablab_: he is my former math professor
08:10 AM fablab_: archivist, would it help to turn card off ?
08:10 AM MarcelineVQ: he's a busy guy
08:11 AM fablab_: and if yes what else should I check and change
08:16 AM archivist: some videos cards take large slices of time eg nvidia driver, use generic
08:16 AM JT-Shop: I wonder what browser I should install on this new windoze pc???
08:17 AM archivist: an open source one
08:17 AM archivist: at the same time upgrade to linux :)
08:18 AM JT-Shop: I have 6 or 8 linux pc's but solidworks won't run on any of them
08:19 AM archivist: I have an old laptop for sw
08:22 AM fablab_: ok take the videocard off
08:23 AM JT-Shop: damn blue screen of death
08:50 AM archivist: FabLab, ask in channel then anyone can help
08:51 AM FabLab: ok
08:51 AM FabLab: I think I solved the problem with the high jitter
08:52 AM FabLab: I took out the video card
08:52 AM FabLab: jitter is about 28.000ns
08:54 AM FabLab: I have this chian breakout http://www.ebay.ca/itm/4-Axis-CNC-Router-DIY-Kit-5-Axis-Breakout-Board-4x-TB6600-Stepper-Motor-Driver-/381564097207
09:18 AM archivist: 28000 is not that good for parallel port, it will restrict your top speed
09:24 AM Tom_L: JT-Shop, i use ff on win7
09:26 AM JT-Shop: I'm giving opera a try it says it can reduce bandwidth usage...
09:37 AM FabLab: strange thing is
09:38 AM FabLab: if everything is setup
09:38 AM FabLab: beside power off for breakout bord
09:38 AM FabLab: one motor is stuttering
09:39 AM FabLab: if i power on break out board with 5V or 12V it does nothing
09:40 AM archivist: there are TWO separate supplies to breakout
09:40 AM archivist: you need the 5v one always
09:42 AM FabLab: 12 v is for input
09:42 AM FabLab: yeah I know
09:42 AM FabLab: but I try everything
09:45 AM Tom_L: JT-Shop, also taking a look at ff focus
09:46 AM gregcnc: hmm 2-128 tap seems hard to find
09:47 AM Tom_L: it's special
09:47 AM Tom_L: 2-56 and 2-64 are the more common ones
09:48 AM Tom_L: even 0 only has 80 tpi
09:49 AM gregcnc: i'm familiar but was hoping google would come up with something
09:50 AM Tom_L: google doesn't make taps
09:50 AM gregcnc: they find them though
09:53 AM Tom_itx: http://www.victornet.com/subdepartments/Special-Pitch-Taps-up-to-1/2-inch/1260.html
09:53 AM Tom_L: they say they can make it for you
09:53 AM gregcnc: first place I checked, yeah will check with them
10:39 AM AndChat569025: http://picpaste.de/1506438418089-829007966-xAHyzz9C.jpg
10:40 AM AndChat569025: http://picpaste.de/15064385301831479025721-hdD4sOXC.jpg
10:40 AM FabLab: this is like it is looking
10:46 AM archivist: you have wired the motors differently
10:54 AM FabLab: archivist, what u mean ?
10:55 AM FabLab: yeah on one motor I change the polarity
10:55 AM FabLab: blue is pulse
10:56 AM archivist: no the motor coils
10:56 AM archivist: pink blue pair
10:58 AM FabLab: yeah
10:58 AM FabLab: i did that on one motor
10:59 AM FabLab: i changed blue pinke and green black
10:59 AM FabLab: archivist,
11:13 AM IchGucksLive: hi
11:13 AM kb8wmc: hello there
11:13 AM IchGucksLive: ;-)
11:14 AM IchGucksLive: kb8wmc: did the 7i76 make it
11:14 AM kb8wmc: yes sir, it did
11:14 AM kb8wmc: all motors working just fine...I need to tune them better though
11:15 AM IchGucksLive: you gone make it
11:15 AM IchGucksLive: did you find a supply for xhc
11:16 AM kb8wmc: no I did not, I got on to other things but I have it on my to-do list
11:16 AM IchGucksLive: plasma with remote is best
11:16 AM kb8wmc: ok
11:17 AM kb8wmc: I am trying to make the emergency stop connection work right now
11:17 AM IchGucksLive: make a halui best to use
11:17 AM IchGucksLive: so you can do lots of things
11:17 AM IchGucksLive: dont use estop
11:18 AM IchGucksLive: use mashine amp on
11:18 AM kb8wmc: why/
11:18 AM kb8wmc: ?
11:20 AM IchGucksLive: it stops only the mashine
11:37 AM Roguish_ is now known as Roguish
12:05 PM IchGucksLive: hi im back
12:31 PM IchGucksLive: archivist are you online
01:06 PM IchGucksLive: hi Hydrar
01:16 PM Hydrar: hi
01:17 PM IchGucksLive: ;-)
01:33 PM IchGucksLive: hi gloops
01:33 PM gloops: hi Ichs
01:33 PM gloops: anything happening?
01:33 PM IchGucksLive: and are the pars showing up
01:34 PM IchGucksLive: i did make a full wireup video
01:34 PM gloops: pars?
01:34 PM IchGucksLive: parts
01:34 PM gloops: oh yes, all running now
01:34 PM gloops: did it yesterday
01:35 PM gloops: watched video about 6 times lol
01:35 PM IchGucksLive: i got a new one today
01:35 PM gloops: new vid for vfd?
01:36 PM IchGucksLive: https://www.youtube.com/watch?v=6hk09X_bQ_g
01:36 PM IchGucksLive: please check my DENGLISH
01:36 PM IchGucksLive: sorry but it is a big deal
01:37 PM gloops: i will study that - no sound on atm, those are the same drivers ive got
01:38 PM IchGucksLive: like them
01:38 PM IchGucksLive: but they only look simular
01:38 PM IchGucksLive: M542 vs tb6600
01:38 PM IchGucksLive: and ofcause all fakes
01:38 PM IchGucksLive: 542m
01:38 PM IchGucksLive: T542
01:38 PM IchGucksLive: .....
01:38 PM gloops: yeah probably fakes
01:39 PM IchGucksLive: im off Gn8
01:39 PM gloops: only snag with spindle - + speed is reducing speed lol, think i need to flip the wires
02:23 PM Roguish_ is now known as Roguish
04:05 PM Deejay: gn8
06:57 PM The_Ball: Can I make multiple G1 calls in the same direction without deaccelerating? I'm trying to use incremental X moves with different S settings to raster with a laser, It works but slows down during the X / S changes. I've tried G61 G64 modes
07:21 PM cradek: yes if you use all G1 I think it won't slow down as much
07:21 PM cradek: S changes are nonrealtime so motion stops
07:41 PM evilroot: Anybody in the market for a SCARA bot?
07:45 PM CaptHindsight: try Craigslist or ebay
07:48 PM tiwake: evilroot: what kind?
07:50 PM evilroot: Seiko
07:51 PM evilroot: 4 axis
07:52 PM CaptHindsight: might be worth more dressed as a Halloween prop
07:55 PM evilroot: https://drive.google.com/file/d/0B5fQTi1W868OTTg3ZDV3azEyYUU/view?usp=sharing
07:55 PM evilroot: Its a real beast
07:55 PM CaptHindsight: 4-axis blade wielding blood spraying halowwen bot
07:59 PM evilroot: Oooh, that would be badass
08:00 PM evilroot: Its certainly fast enough to stab a mofo . . .
08:16 PM tiwake: lol
08:16 PM tiwake: evilroot: how much do you want for it?
08:22 PM evilroot: $1k
08:23 PM evilroot: Works fine mechanically, I tested it all
08:23 PM evilroot: And its known compatible with LinuxCNC :-D
08:24 PM evilroot: https://www.youtube.com/watch?v=Bn-T70SoNjM
08:28 PM CaptHindsight: i have a slightly smaller d-tran sitting near me
08:29 PM gregcnc: i didn't have the patience to see if he got clobbered by that bot
08:29 PM CaptHindsight: TT-8030
08:30 PM CaptHindsight: http://www.tzsupplies.com/seiko-d-tran-tt8030-4-axis-i2093410/ not mine just a pic of one
08:43 PM evilroot: Nifty
08:43 PM evilroot: gregcnc: unfortunately no, heh
09:05 PM andypugh: http://www.ebay.co.uk/itm/272165868184 is a decent price for the harmonic drive and the matching amp.
09:19 PM Tom_L: andypugh, how's things in the SW US?
09:20 PM andypugh: Bearable.
09:20 PM Tom_L: likely a drastic weather change from your norm
09:22 PM andypugh: Apparently the weather is pretty foul at home. But then I did get snowed on on saturday.
09:23 PM Tom_L: in Az?
09:24 PM Tom_L: i thought it was supposed to be hot and dry there
09:27 PM andypugh: I was up the mountain. It was 3C (37F?) up high, and 80F (low for the time of year) in the city.
09:29 PM Tom_L: rather mild
11:07 PM CaptHindsight: https://www.kickstarter.com/projects/62697072/z-arm-affordable-collaborative-robotic-arm-for-eve?ref=discovery&keywords=robotic%20arm&camp=935448625&adgroup=46121579029&&placement=phys.org&gclid=CKqo0_m3xNYCFQEPaQodmo4M6w
11:08 PM CaptHindsight: SCARA ^^
11:09 PM CaptHindsight: they claim 20um repeatability
11:09 PM CaptHindsight: $1400
11:10 PM CaptHindsight: heh 2kg work load :(
11:10 PM CaptHindsight: deliver April 2018 :(
11:12 PM Tom_L: cause i need a fancy design on my coffee froth
11:14 PM CaptHindsight: yeah, those dopes could use a delta for that :)
11:15 PM CaptHindsight: they don't even have a pancake attachment of burger flipper
11:15 PM CaptHindsight: of/or
11:16 PM Tom_L: too focused on planar movement, no wrist action to flip em
11:18 PM evilroot: As opposed to my SCARA which is $1000
11:18 PM evilroot: :-D
11:18 PM evilroot: And like 5x as big
11:19 PM Tom_L: for making whoppers?
11:19 PM Tom_L: or big macs
11:19 PM evilroot: I love how there's suddenly a toaster, cup of coffee, etc suddenly on the table
11:20 PM evilroot: And that it makes something that's definitely a sex toy
11:21 PM CaptHindsight: yeah, where are those attachements?
11:22 PM CaptHindsight: finally a reason to buy tea candles
11:22 PM evilroot: I like that its being used as a laser engraver without any protection . . .
11:22 PM evilroot: Because who needs corneas?
11:23 PM CaptHindsight: i saw him wearing glasses while laser engraving... never mind that he was also not paying attention
11:23 PM evilroot: Not laser glasses X.X
11:23 PM CaptHindsight: laser glasses are for whimps
11:24 PM evilroot: And people who like having eyesight
11:24 PM CaptHindsight: when we were kids we used to get woken up by direct laser shots to the face by mom
11:27 PM * evilroot has worked with some pretty terrifying lasers
11:27 PM evilroot: I used to have a pulsed NdYAG laser in the 10kJ range
11:28 PM CaptHindsight: what were the pulse widths?
11:28 PM CaptHindsight: ns?
11:28 PM tiwake: shiny
11:28 PM evilroot: Yeah, ns
11:28 PM evilroot: Fucking terrifying
11:29 PM tiwake: make sure your optics are good and very clean
11:29 PM evilroot: I wonder if I still have a picture of it
11:30 PM CaptHindsight: popcorn popper
11:30 PM tiwake: CaptHindsight: individually lase each kernel for the perfect popcorn, every time
11:30 PM CaptHindsight: bespoke popcorn
11:30 PM evilroot: Wait holy shit, he says that arm has a 20 NANOmeter resolution?
11:31 PM evilroot: You've got to be fucking kidding me
11:31 PM evilroot: Erm, mirco
11:31 PM evilroot: But STILL
11:31 PM CaptHindsight: 20um
11:31 PM evilroot: I call BS
11:31 PM CaptHindsight: 20um brand new on first use with <25% or rated load
11:32 PM CaptHindsight: or/of
11:32 PM CaptHindsight: 500g at 50% speed
11:32 PM evilroot: Meh, I really think he's overstating
11:32 PM CaptHindsight: yeah
11:32 PM CaptHindsight: but poopstarter!
11:32 PM evilroot: I mean mine is rated for 6kg at 70% speed
11:32 PM evilroot: And its a fricking BEAST
11:33 PM CaptHindsight: the test should be plunging a needle into your neck right next to your juggular
11:33 PM evilroot: Grated top speed of mine is 4100mm/sec
11:33 PM CaptHindsight: if you are confident with 20um so be it
11:33 PM evilroot: *granted
11:34 PM evilroot: https://drive.google.com/file/d/0B5fQTi1W868OUDRRSFBfbTRBT1k/view?usp=sharing
11:34 PM evilroot: Wow, I did still have a picture of it!
11:34 PM CaptHindsight: there are little to no consequences for lying about the specs
11:34 PM evilroot: I forgot about my old web server backup from like 10 years ago
11:35 PM evilroot: https://drive.google.com/file/d/0B5fQTi1W868OLUx4RjNVT0JmdkU/view?usp=sharing
11:35 PM evilroot: I felt like a straight up Bond villian
11:35 PM CaptHindsight: what did you use it for?
11:35 PM CaptHindsight: tattoo removal? :)
11:35 PM evilroot: I blasted a few holes in stuff
11:35 PM Wolf__: bread slicer?
11:35 PM evilroot: And then sold it
11:36 PM evilroot: At the time I had a company where I bought tech surplus, fixed it and sold it
11:36 PM evilroot: Bought that bad boy from UNC
11:36 PM evilroot: For $100
11:36 PM CaptHindsight: there is a market for less than lab grade automation components but
11:37 PM CaptHindsight: a plastic SCARA is aiming too low
11:37 PM evilroot: Its aimed at hipster coders
11:37 PM CaptHindsight: deal!
11:37 PM CaptHindsight: good idea
11:37 PM CaptHindsight: aim it at hipsters :)
11:37 PM evilroot: I mean if they can spend $1k on a shitty phone
11:38 PM CaptHindsight: I hear that they attack women like flies to sugar
11:39 PM evilroot: Holy crap, this old backup has pictures I had forgotten about!
11:39 PM evilroot: Wow
11:39 PM CaptHindsight: a time capsule
11:39 PM CaptHindsight: I have a backup of some drives I had back in the 80's
11:39 PM CaptHindsight: I like to run the PC benchmarks
11:40 PM evilroot: OH HELL
11:40 PM evilroot: I found one of me when I was 18
11:40 PM CaptHindsight: they had pie charts that used to move really slow even with the fastest PC's
11:40 PM * evilroot is 34 now
11:40 PM CaptHindsight: now they look like fans
11:40 PM CaptHindsight: i have bunions older than 34 :)
11:41 PM CaptHindsight: 1983 a good year
11:42 PM CaptHindsight: heh 1984 Apple ad https://www.youtube.com/watch?v=2zfqw8nhUwA
11:42 PM evilroot: https://drive.google.com/file/d/0B5fQTi1W868OZENyaExhaU1xSUE/view?usp=sharing
11:43 PM evilroot: https://drive.google.com/file/d/0B5fQTi1W868OcHl6MjMwTTlfdlU/view?usp=sharing
11:43 PM CaptHindsight: sure 1984 was not like 1984, 2004 was like 1984
11:45 PM CaptHindsight: I remeber when Jobs was burining through his cash with that project
11:46 PM CaptHindsight: Motorola 68030 @ 25 MHz, 68882 FPU @ 25 MHz, 56001 digital signal processor (DSP) @ 25 MHz
11:47 PM CaptHindsight: US$6,500 (equivalent to $13,163 in 2016)
11:47 PM evilroot: Yep
11:47 PM evilroot: I've owned two
11:55 PM evilroot: Amazing the stuff you find in dark corners of surplus warehouses
11:56 PM evilroot: Man, these are some great pictures from my "glory days" when I did crazy shit
11:56 PM evilroot: https://drive.google.com/file/d/0B5fQTi1W868OTzdOemk4RlZLbE0/view?usp=sharing