#linuxcnc Logs

Jun 13 2021

#linuxcnc Calendar

12:50 AM veegee: I feel like I'm Dexter sometimes
12:50 AM veegee: I need to kill something, but won't be able to live with myself if I kill an "innocent" thing
12:51 AM veegee: Shooting flies and wasps with my salt shotgun is quite fun and a great way to kill something without feeling remorse
12:52 AM veegee: Need to upgrade its power before I go after wasps though. It's not quite powerful enough to kill a wasp in one shot. It barely kills a fly unless at very close range
02:00 AM Deejay: moin
03:00 AM Vq: Good morning
05:11 AM Tom_L: morning
05:13 AM XXCoder: heys
05:21 AM JT-Cave: morning
05:21 AM XXCoder: hey
09:12 AM * JT-Cave wonders why web page remember me checkboxes never work
09:18 AM tcurdt: Is there a way of using an arduino/esp32/stm32/something instead of getting a mesa card?
09:18 AM tcurdt: And does having an external card (over a bob) reduce or even drop the requirement for a realtime kernel?
09:26 AM tcurdt: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?HardwareDesign seems to cover this
09:27 AM JavaBean: jt-cave, does your webbrowser clear logins/cookies on exit?
09:29 AM tcurdt: "because it breaks the idea of the project - LinuxCNC as a machine controller" ... how does that not apply to the Mesa cards?
09:40 AM Eric_: tcurdt, I think there is a project to use an sbc as a external card for linuxcnc. Not sure if I can find it right now
09:41 AM Eric_: it's certainly possible. E.g. stmbl
09:41 AM tcurdt: Eric_: not listed here? http://wiki.linuxcnc.org/cgi-bin/wiki.pl?LinuxCNC_Supported_Hardware
09:41 AM Eric_: but you can't drop the real time kernel though
09:42 AM Eric_: but just like a mesa card, it lowers the timing requirements
09:43 AM tcurdt: I am mainly struggeling to understand the differentiation of the "because it breaks the idea of the project - LinuxCNC as a machine controller"
09:44 AM Eric_: that might not be the best way to put it, bottom line is it breaks the current software in significant ways and nobody is interested in making that work
09:45 AM Eric_: there are other projects like grbl, smoothie stepper, etc. People are constantly coming up with their own
09:45 AM tcurdt: Eric_: maybe then I just don't understand what the mesa cards do
09:45 AM Eric_: which one? there are dozens
09:46 AM tcurdt: aren't they also about offloading the stepping?
09:46 AM tcurdt: I thought they differ mainly just in the interfaces
09:46 AM tcurdt: the mesa cards
09:47 AM Eric_: yes, but in a way that doesn't offload the motion planning, kinematics, etc
09:47 AM tcurdt: plus expansion boards
09:49 AM Eric_: if you search for arduino linuxcnc you will find projects
09:50 AM tcurdt: Eric_: so with GRBL you would say go from A(x,y,z) to B(x,y,z) and the controller would take care of the motion planning and stepping. And with the mesa LinuxCNC would provide and just buffer the stepping information
09:50 AM tcurdt: like that?
09:53 AM skunkworks: Eric_: The computer is the motion controller. Other projects like mach move the motion controller to the external device. Mesa isn't a motion controller. It moves things that the computer doesn't do well to the external interface. Like - high speed stepgen, encoder counting, pwm..
09:54 AM skunkworks: tcurdt: I meant ^
09:54 AM unterhaus: grbl takes gcode, but yes, mesa is much lower level of communication.
09:55 AM skunkworks: and no bufferning.. (that is also a mach/ grbl and such)
09:55 AM unterhaus: I think the arduino/linuxcnc projects are interesting
09:56 AM unterhaus: grbl is so confining
09:56 AM JT-Shop: JavaBean, I'm not sure
09:56 AM skunkworks: unterhaus: yes.. That is why I like linuxcnc. You can dive as deep as you want and do almost anything..
09:57 AM tcurdt: so that means the mesa card just makes sure that at a given time the step impulses are done at the same time
09:57 AM tcurdt: ?
09:57 AM tcurdt: so linuxcnc sends the step information and the mesa card times it and then sends it out?
09:58 AM skunkworks: in effect - yes
09:58 AM skunkworks: ever ms or whatever your thread is set to - linuxcnc sends out a rate for the stepper to go at - and reads back a postion..
09:59 AM skunkworks: Linuxcnc treats steppers and servos pretty much identical..
09:59 AM unterhaus: software stepping is pretty complex, pulse widths are important. So the computer needs to have much faster timing than the machine actually requires
09:59 AM skunkworks: it is a control loop
09:59 AM skunkworks: it is in effect - a closed loop system.
09:59 AM unterhaus: offloading that timing means the computer doesn't need to have a high rate of sampling
09:59 AM skunkworks: unterhaus: exactly..
10:00 AM skunkworks: so instead of the computer having to have a realtime thread running at 40khz making steps - it only needs on running at a khz or 2...
10:01 AM skunkworks: still realtime but more relaxed.
10:01 AM tcurdt: ok ... and the reason there are not more DIY uC solutions is probably because the lack of a good/fast interface to them?
10:02 AM skunkworks: yes. Usb isn't realtimey enough..
10:02 AM skunkworks: technical term
10:02 AM tcurdt: lol
10:02 AM skunkworks: Realtime Ethernet is somewhat complicated but works well (mesa uses it)
10:02 AM skunkworks: spi on a rpi works.
10:03 AM tcurdt: oh!
10:03 AM tcurdt: so a RPi via SPI to a esp32/stm32 could be a decent option?
10:03 AM skunkworks: printer port sending data (instead of descrete steps) works
10:04 AM skunkworks: tcurdt: sure - if you can do the heavy lifting. Mesa already has a solution
10:04 AM skunkworks: pci/pci-e works
10:05 AM skunkworks: I have used pci and ethernet with mesa - both are rock solid.
10:05 AM tcurdt: priner ports are becoming rare these days, and mesa cards aren't quite so cheap ... hence my research
10:06 AM skunkworks: $89 for a 7i92?
10:06 AM tcurdt: hm ... I had more like 200 USD on my radar
10:06 AM tcurdt: who knows what I might have looked at
10:07 AM skunkworks: the 7i92 is like 2 printerports on steriods..
10:07 AM skunkworks: (high speed step gen and encoder counting and such)
10:07 AM skunkworks: and you can expand it - buying daughtor boards.
10:11 AM tcurdt: why the DB25M? doesn't it get the data via eth? or is that for the connection to the steppers?
10:12 AM tcurdt: basically host <-eth-> 7i92 <-DB25-> breakout board
10:12 AM tcurdt: like that?
10:12 AM tcurdt: host <-eth-> 7i92 <-DB25-> breakout board <-> stepper driver
10:13 AM skunkworks: yes
10:15 AM skunkworks: I have a machine that is just a 7i92 - runing a leadshine + spindle encoder, jog wheel and switches, and other stuff I cannot remember
10:16 AM skunkworks: smart serial.
10:17 AM skunkworks: and doing crazy stuff like https://www.youtube.com/watch?v=C0Wz8vnFAQU
10:22 AM tcurdt: I just checked. I was looking at the 7I76E ... which is 200 USD
10:31 AM Tom_L: tcurdt, you can also use ethernet on a rpi4
10:32 AM Tom_L: i've tested both the spi and ethernet solutions for it
10:32 AM tcurdt: Tom_L: any difference? which card did you end up using with it?
10:33 AM Tom_L: 7i80
10:33 AM Tom_L: it does both
10:34 AM Tom_L: also there are plug in cards for the rpi4
10:34 AM Tom_L: i forget which numbers though
10:34 AM Tom_L: 7i80 and a daughter card and you're set
10:34 AM Tom_L: or the piggyback solution
10:37 AM Tom_L: 7c80 & 7c81
10:38 AM Tom_L: http://store.mesanet.com/index.php?route=product/product&path=69_63&product_id=345
10:38 AM Tom_L: http://store.mesanet.com/index.php?route=product/product&path=69_63&product_id=338
10:42 AM tcurdt: quite a big difference in price :)
10:42 AM tcurdt: thanks for looking those up!
10:42 AM Tom_L: they do different things
10:42 AM Tom_L: i'm not very familiar with them since i haven't used them
10:43 AM tcurdt: but you got the 7i80 - not the 7c81
10:43 AM tcurdt: and I guess the 7c81 also still needs some bobs
10:43 AM Tom_L: https://www.youtube.com/watch?v=g0OLIth_cOI&t=4s
10:43 AM Tom_L: a short clip testing the rpi4 with the 7i80
10:44 AM Tom_L: normally i use a different card to a pc but this was to test the rpi4
10:45 AM _unreal_: man they want me to do a lot of etching this weekend
10:45 AM _unreal_: cnc etching and laser etching
10:45 AM Tom_L: better get another one
10:47 AM _unreal_: at least the RPI4 is mounted securely
10:47 AM Tom_L: safety is of utmost importance :)
10:50 AM _unreal_: you know I have YET to print a trinket with this 3d printer
10:50 AM Tom_L: that must be a first for a 3d printer
10:50 AM _unreal_: everything I've made so far I needed
10:50 AM Tom_L: first they print themselves, then they print junk
10:50 AM _unreal_: I've only had ONE failed print as well :)
10:50 AM _unreal_: that was do to STUPID
10:51 AM _unreal_: didnt change the orientation and more or less had a BIG print sitting on a VERY SMALL SURFACE
10:52 AM _unreal_: DIDNT TAKE MUCH TO free its self from the bed
10:52 AM Tom_L: they don't warn about that?
10:52 AM _unreal_: well think of it like this
10:52 AM Tom_L: about fitting inside the cube?
10:52 AM _unreal_: trying to print a funnel that is 5" diam at the top and 3/8th at the bottom and starting at the bottom
10:53 AM Tom_L: no support risers?
10:53 AM _unreal_: did I mention stupid
10:53 AM Tom_L: oh
10:53 AM Tom_L: yeah that was really stupid!!
10:53 AM Tom_L: :)
10:54 AM _unreal_: well time to take the kid to the Morikami Museum and Japanese Gardens
10:54 AM _unreal_: so ya I dont know why I did that with the thing I was printing but thats more or less what I did
10:55 AM snakedGT is now known as snaked
10:55 AM _unreal_: simply invert it and no supports or anything needed
10:56 AM Tom_L: mowed, showertime.
11:23 AM -!- #linuxcnc mode set to +o by ChanServ
11:39 AM tcurdt: I am wondering if the protoneer shield could be used with linuxcnc as well. Obviously not with GRBL running - but maybe with a custom firmware. 🤔 https://blog.protoneer.co.nz/raspberry-pi-cnc-board-hat/
11:40 AM Tom_L: why is it noobs always take the hard road first?
11:40 AM JT-Shop: it's their job
11:40 AM Tom_L: was nice out today
11:41 AM Tom_L: so i had to mow :/
11:41 AM JT-Shop: started out sorta nice but it's getting hot
11:42 AM Tom_L: didn't seem quite as bad as it's been
11:42 AM Tom_L: humidity dropped from the low 90's to 48%
11:44 AM Tom_L: hi 90F
11:44 AM Tom_L: i'll take 90F over 90% any day
11:47 AM JT-Shop: I still don't understand the rational for using G64 as default when G61.1 would be a better choice for noobs
11:51 AM Tom_L: JT-Shop, what was wrong with your Z servo?
11:53 AM tcurdt: Tom_L: I guess I am the noob you are referring to? :) Well, I remembered I actually have such a board.
11:54 AM JT-Shop: https://forum.linuxcnc.org/27-driver-boards/42817-tuning-servos-with-a-7i77
11:54 AM Tom_L: tcurdt, you have a daunting task ahead if you go that route
11:56 AM tcurdt: Tom_L: I don't follow all crazy ideas - but it would be interesting.
11:57 AM Tom_L: JT-Shop, Z is heavier to
11:57 AM tcurdt: Tom_L: I guess for now it would be interesting if this could/should be possible. Given the existence of the Mesa card for the RPi that sounds at least like a maybe :)
11:58 AM Tom_L: certainly the least amount of headache
11:58 AM tcurdt: I doubt I rather write the fiemware than just buying a mesa though
12:02 PM drdoc: Tom_L: you were cleaning Alps switches?
12:03 PM Tom_L: yessir
12:03 PM drdoc: do tell!
12:03 PM * drdoc is a huge Alps fan
12:03 PM Tom_L: i got 2 northgate omnikey 102 and i spilled juice on one
12:04 PM Tom_L: so i cleaned the switches
12:04 PM drdoc: I have a sacreligious suggestion
12:04 PM Tom_L: you saw the dissassembly right?
12:04 PM drdoc: no, I've been mostly offline for a few days
12:05 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Omnikey_key/alps3.jpg
12:05 PM Tom_L: some assembly required
12:05 PM drdoc: yes
12:05 PM Tom_L: they come apart real easy
12:05 PM drdoc: back together too
12:05 PM drdoc: if you were paying attention
12:05 PM Tom_L: yeah
12:06 PM Tom_L: one way
12:06 PM Tom_L: i tweaked the spring on a few too. they were getting a little weak
12:06 PM drdoc: I have an NTC that originally probably had Blues, bought it after it was cannibalized
12:07 PM Tom_L: one blue one white
12:07 PM drdoc: case, PCB, plate and keycaps
12:07 PM drdoc: it's going back with Matias Quiet Clicks
12:07 PM Tom_L: i've replaced a couple keycaps a couple times
12:07 PM Tom_L: 'home
12:09 PM drdoc: Matias sells a switch tester for $10; you should try them
12:09 PM Tom_L: i got meters for that
12:09 PM drdoc: nononono
12:10 PM drdoc: it's a pair each of clicky, quiet click and linear keyswitches
12:11 PM Tom_L: my last kbd was a MX keys and i'm pretty happy so far
12:12 PM Tom_L: it's not a religion for me. i just want the kbd to work
12:12 PM drdoc: heh
12:13 PM drdoc: my hands are arthritic; turns out switches matter. A lot.
12:13 PM drdoc: also caps, surprisingly
12:14 PM Tom_L: i lost feeling in 2 fingers so i still search for the keys
12:14 PM JT-Cave: me is really liking his new G code generator
12:14 PM drdoc: yeah. Whole fingers or just the tips?
12:14 PM Tom_L: JT-Cave, the pocket or the whole in general?
12:14 PM Tom_L: tips
12:15 PM drdoc: same
12:15 PM JT-Cave: right now the feed/speed tab and like face and pocket
12:15 PM Tom_L: result of pinched nerve between C6 & C7
12:15 PM drdoc: one from a cut and one from repeated burns
12:15 PM Tom_L: whole left side was numb for quite a while
12:15 PM drdoc: ow
12:15 PM * JT-Cave celebrates with a nap
12:15 PM JT-Cave: ouch
12:16 PM Tom_L: alot better now
12:16 PM JT-Cave: I had tennis elbow for a few months in my left elbow and man that hurt
12:16 PM drdoc: cool
12:16 PM Tom_L: still feel some some days
12:16 PM drdoc: I bet
12:16 PM JT-Cave: seems like some new breaks down all the time
12:16 PM Tom_L: not complaining, just a pita
12:17 PM Tom_L: JT-Cave, they don't tell us that ahead of time ehh?
12:17 PM drdoc: JT-Cave: I got badly beat up by a tiny cat last year and one of the bites turned into acute bursitis in my elbow
12:17 PM * roycroft passes the bottle of geritol around, along with a handful of doan's pills
12:17 PM drdoc: Tom_L: I told my younger brother awhile back
12:18 PM drdoc: "You remember those epic wrecks riding in the kaliche pits when we were 15?"
12:18 PM drdoc: "I didn't even notice then, and now I feel them every damn morning."
12:19 PM drdoc: Tom_L: I find the more I just push on through it, the less it progresses
12:20 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/project_box/projectbox_tabs.jpg
12:20 PM Tom_L: http://ruemohr.org/~ircjunk/tempimage/p1190994.jpg
12:20 PM Tom_L: soon to be cast in alum
12:20 PM drdoc: for?
12:21 PM Tom_L: dunno, he wanted one
12:21 PM drdoc: ah
12:21 PM drdoc: some of the electronics enclosures I drew up for Brandt Machining are going to Mars
12:22 PM drdoc: the company we made them for contracts to NASA
12:22 PM drdoc: it's just silly how much that matters to me.
12:23 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/pillowblock/pillowblock1.jpg
12:23 PM Tom_L: http://ruemohr.org/~ircjunk/tempimage/p1190988.jpg
12:23 PM Tom_L: that was his first one
12:24 PM Tom_L: drdoc, my kid makes spacex parts
12:24 PM drdoc: sweet
12:24 PM Tom_L: along with others..
12:25 PM drdoc: as much bad rap as Musk gets, he's dragging us into the future by the ears
12:26 PM drdoc: you know he open-sourced Tesla's battery tech
12:29 PM Tom_L: you still in Austin?
12:35 PM drdoc: yes
12:36 PM drdoc: I know they're looking for Linux admins here; I'm trying to find somebody who works IT for them
12:37 PM drdoc: I'd love to work there, but not if it's 60 hours a week
12:39 PM drdoc: has everyone pretty-much abandoned freenode?
12:44 PM Tom_L: seems so
12:45 PM roycroft: there are still 50,000 clients on freenode
12:45 PM roycroft: most of whom are idlers, i should think
12:45 PM roycroft: this network is over 30,000 now
12:49 PM Tom_L: seems more stable too, i don't think the bot has dropped off once other than my own isp issues
12:52 PM drdoc: excellent
12:53 PM drdoc: Le Roi est mort, vive le roi
01:03 PM Tom_L: drdoc, what switches do they put on their wireless kbds?
01:15 PM drdoc: I don't know - I think you can get whichever.
01:16 PM drdoc: I'd rather fix up an old board than buy a new one
01:19 PM drdoc: switches are $50 for a bag of 200
01:20 PM JT-Shop: well hell I've lost my 5/64" allen wrench and one screw...
01:20 PM drdoc: ouch
01:27 PM JT-Shop: turns out I was wrong on both accounts, found the allen wrench and one hole does not have threads
01:29 PM robotustra: finally did pockets
01:39 PM JT-Shop: with?
01:41 PM robotustra: what "with"?
01:41 PM JT-Shop: pockets
01:42 PM robotustra: I did a wirtual pockets with virtual end mill in my cad :)
01:42 PM robotustra: virtual*
01:42 PM robotustra: https://i.imgur.com/QR9cs3z.png
01:42 PM robotustra: https://i.imgur.com/Q3309JN.png
01:43 PM robotustra: https://i.imgur.com/cV3B7uN.png
01:43 PM robotustra: I mean I did a generation procedure for pockets
01:44 PM robotustra: didn't tesk it for different types of pockets, but I'll test it later :)
01:45 PM JT-Shop: I just finished up my pocket generator
01:47 PM robotustra: did you test it?
01:49 PM JT-Shop: yes
01:49 PM JT-Shop: in simulator
01:50 PM robotustra: how do you generate pockets?
01:50 PM robotustra: for tests?
01:52 PM JT-Shop: it generates the G code and I run them in Axis sim
01:52 PM JT-Shop: https://gnipsel.com/linuxcnc/gcode/index.html
01:53 PM JT-Shop: I'm updating the original simple g code generators I started back in 2002 to Python3 and PyQt5 with updated programming
01:54 PM robotustra: I see
01:54 PM robotustra: 18 year ago?
01:54 PM robotustra: even 19
01:59 PM robotustra: JT-Shop, what kind of pockets you can set?
02:00 PM JT-Shop: any 4 sides with corner radius
02:00 PM robotustra: JT-Shop, did you updated the web page about pockets?
02:05 PM JT-Shop: which web page?
02:08 PM Tom_L: damn everybody has pockets but me :(
02:09 PM JT-Shop: I guess I'll just keep running that same program over and over until the X axis drive stops faulting out
02:10 PM Tom_L: still faults?
02:10 PM Tom_L: is it getting better?
02:10 PM JT-Shop: seems to run longer each time so I guess it just needs to run a while
02:11 PM JT-Shop: need to make a simple program with a loop to run the X back and forth 50 times or something
02:11 PM Tom_L: write a short x+ x- in a loop
02:11 PM Tom_L: :)
02:12 PM Tom_L: i got one i did for my cutter test if you want it
02:12 PM Tom_L: too easy, you can do your own....
02:12 PM JT-Shop: yea just a couple of lines of code
02:12 PM Tom_L: i wrote mine on the mill
02:13 PM JavaBean: not a comfortable keyboard to type on though, is it?
02:13 PM Tom_L: i don't think i've ever run a sub in a loop
02:13 PM Tom_L: with cad cam it makes you lazy
02:13 PM Tom_L: JavaBean, which?
02:13 PM Tom_L: i like my new one better and use it the most
02:14 PM JavaBean: the keyboard ON the mill
02:14 PM Tom_L: but refuse to give up on the northgate
02:14 PM Tom_L: oh
02:14 PM Tom_L: no it's kinda not really got a good home
02:14 PM JT-Shop: lol debian thinks a ngc file is a Neo-Geo Pocket Color ROM file
02:14 PM JT-Shop: whatever the heck that is
02:15 PM Tom_L: must be a thing
02:17 PM JT-Shop: hmm down to line 550 and still running
03:04 PM JT-Shop: running the exercise program now
03:28 PM Tom_L: you running wheezy on that one?
03:29 PM JT-Shop: debian 10 don't know the funny name
03:29 PM Tom_L: buster i think
03:29 PM Tom_L: i forgot what 9 was
03:29 PM Tom_L: stretch?
03:30 PM Tom_L: all toy story names
03:30 PM Tom_L: sid is the experimental? one (he was the bad charachter in toy story)
03:30 PM roycroft: buster
03:30 PM JT-Shop: never watched toy story
03:31 PM roycroft: that's a film?
03:31 PM Tom_L: kids movie
03:31 PM roycroft: and that's how the debian releases are named?
03:31 PM Tom_L: yes
03:31 PM * roycroft never understood the names, but figured there was some method to the madness
03:31 PM Tom_L: hard to say what they'll do when they run out of characters
03:32 PM robotustra: Debian GNU/Linux 10.4.0 _Buster_
03:32 PM roycroft: i think my mill/drill just blew a fuse
03:32 PM roycroft: i *hope* that's what happened
03:32 PM Tom_L: https://en.wikipedia.org/wiki/List_of_Toy_Story_characters
03:32 PM roycroft: but the fuse fell behind the machine when i extracted it, and i can't find it
03:33 PM Tom_L: can't wait for the Mr Potatoe Head release :)
03:33 PM roycroft: so now i'm looking up the value, and will replace it and hope for the best
03:34 PM Tom_L: 1/4" copper tube?
03:35 PM roycroft: and i don't have any of the correct fuses
03:35 PM roycroft: of course
03:35 PM roycroft: because i was planning on not leaving the property today
03:35 PM Tom_L: i dropped a spring from my keyswitch twice yesterday... that was a real manhunt
03:37 PM JavaBean: tom_l, potato was released in 2000. was version 2.2
03:38 PM Tom_L: ubuntu: Warty Warthog, Hoary Hedgehog, Breezy Badger, Dapper Drake, Edgy Eff, Feisty Fawn, Gusty Gibbon, Hardy Heron
03:38 PM Tom_L: guess the movie
03:38 PM Tom_L: i dunno
03:39 PM JT-Shop: I'm guessing there is some issue with the tacho and if it don't clear up soon I'll be taking it apart to see what I can break
03:39 PM Tom_L: wow debian has the next 3 named already
03:40 PM Tom_L: https://en.wikipedia.org/wiki/Debian_version_history
03:40 PM Tom_L: JT-Shop, you don't think it's the brushes?
03:41 PM JT-Shop: dunno without looking, they do have some tiny little wires on the tacho brushes
03:41 PM Tom_L: be careful!
03:42 PM JT-Shop: so long as I don't try and pull the tacho windings off I'm safe
03:42 PM Tom_L: while looking i saw a place online that specializes in rebuilding bridgeport servos
03:44 PM JT-Shop: went back to the range Monday to look at lane 8 as it was stopping randomly... turns out the 24vdc wire from the power supply was under the clamp on the terminal block and not clamped
03:45 PM JT-Shop: so the drive would drop out randomly
03:47 PM Tom_L: oh wow i'm glad you said something about wire. while mowing the kill switch on the mower died. i need to replace that
03:47 PM Tom_L: nearly forgot
03:48 PM JT-Shop: did it fall out of the little clip?
03:49 PM Tom_L: i added a toggle switch to it when i bought it 25-30 yrs back
03:49 PM Tom_L: vibration aparently finally killed it
03:49 PM Tom_L: a short across the switch killed the motor so it's not the wires
03:58 PM JT-Shop: the x axis faults at random locations...
04:00 PM Tom_L: maybe seems random but it could be the same spot on the tacho
04:00 PM JT-Shop: could be
04:01 PM Tom_L: you could calculate that if you wanted to go to the trouble :)
04:28 PM Tom_shop is now known as Tom_L
04:41 PM roycroft: well, six stores later, including one where i was told "this is america - you can't legally machines with metric fuses in this country", and i have no fuse :(
04:41 PM roycroft: legally import, rather
04:42 PM XXCoder: legally machine with metric fuses what
04:42 PM XXCoder: ah import
04:42 PM hexagonSun is now known as hexagon5un
04:42 PM XXCoder: can ebay it?
04:42 PM roycroft: yeah, i can find them online
04:42 PM XXCoder: or aliexpress?
04:42 PM XXCoder: ok
04:42 PM roycroft: i just wanted to finish the project today
04:43 PM roycroft: and btw, i found m5x20 fuses at almost all the other stores
04:43 PM roycroft: that guy was full of it
04:43 PM roycroft: i just did not find the correct values at the other stores
04:44 PM JT-Shop: something just popped in the cabinet... guess I'm done for the day
04:45 PM roycroft: it's raining, so i can't work outside
04:46 PM roycroft: paint is drying, so i can't work in the wood shop - the bench, router table, and table saw are covered with freshly-painted parts
04:46 PM roycroft: that's why i'm trying to get this machining done
04:46 PM roycroft: besides, i have to paint the part when it's done, and it will take a week or so for the paint to fully cure, so sooner is better than later for making it
04:48 PM XXCoder: yeah, i highly doubt fuses would be illegal lol
04:48 PM XXCoder: or metric in general
04:49 PM XXCoder: roy man me and my bro finally got prusa mk3s working very well lol
04:49 PM XXCoder: lots of fixes lol
04:50 PM JT-Shop: hmm all three drives are faulted out now when I apply power
04:50 PM Tom_L: that doesn't sound good
04:51 PM Tom_L: psu going south maybe?
04:52 PM roycroft: they're not illegal
04:52 PM roycroft: the guy was an idiot
04:53 PM XXCoder: likely
04:53 PM roycroft: i'm actually having a hard time finding the fuses online, though
04:53 PM roycroft: grizzly carry them, though
04:53 PM roycroft: i just don't want to pay $15 for shipping on a couple $1 fuses, and have to wait a week and a half to get them
04:54 PM roycroft: oh, digi-key have them
04:54 PM Tom_L: what size fuses are they?
04:54 PM roycroft: they'll cost me $0.23 each fom them
04:54 PM JT-Shop: still have dc power but inside the servo has a stink
04:54 PM roycroft: 10a 5x20
04:54 PM Tom_L: physical size
04:55 PM roycroft: 5x20 is a pretty common size
04:55 PM roycroft: but not in 10a
04:55 PM Tom_L: JT-Shop, the new servo?
04:55 PM roycroft: 750ma, 1a, and 2a are what are most common at the stores around here
04:55 PM roycroft: and "this is america" is the other common size :)
04:56 PM roycroft: the thing is, i don't know if i need fast blow, medium blow, or slow blow
04:56 PM roycroft: the documentation for the machine only says "10a"
04:57 PM XXCoder: i would go for high speed first. then go down to med then slow
04:57 PM roycroft: but i'm going to assume it's slow blow, since it is such a high rating - that means it protects the entire machine, not just the controller
04:57 PM roycroft: it's a 3/4hp motor
04:57 PM roycroft: so 10a sounds right to protect the motor + controller
04:57 PM roycroft: this is a 125vac machine
04:58 PM roycroft: well i can get 5 fuses for $1.14 from digi-key, so perhaps i'll order 5 slow-blow and 5 fast-blow
04:58 PM roycroft: and still pay more for postage than for the parts
04:58 PM roycroft: i wish i had an order ready for digi-key, but i can't be bothered to take the time to make one now
04:58 PM roycroft: i'll just get what i need immediately
04:58 PM XXCoder: maybe can look around see if you can add stuff?
05:01 PM roycroft: well, if i had a couple hours i could make a decent order
05:01 PM roycroft: but i really don't want to bother with that righ tnow
05:02 PM XXCoder: lol
05:10 PM JT-Shop: that's why I prefer to put breakers in...
05:12 PM roycroft: yes
05:12 PM roycroft: and when i do the cnc conversion i'll replace the fuse holder with a breaker
05:13 PM roycroft: anyway, i should receive fuses in a few days
05:13 PM XXCoder: watch out for fake breakers
05:13 PM XXCoder: i saw video that showed one. its essentally slow blow wire inside LOL
05:14 PM JT-Shop: I think a wire was rubbing on the encoder coupling
05:15 PM Tom_L: on the new one?
05:15 PM roycroft: i was ordering some clamps earlier (the last of the parallel clamps, i think), and decided to do a price sanity check on amazon
05:16 PM roycroft: and i found a ginormous clamp that i've wanted but can't cost justify for half price there - it is a return
05:16 PM roycroft: https://www.amazon.com/gp/product/B000GK8PL0
05:16 PM roycroft: that puppy has jaws that are 12" deep
05:17 PM roycroft: so i bought it, of course
05:17 PM roycroft: i don't care if it's slightly used, if i can save $50
05:18 PM Tom_L: just so it's not bent all to heck
05:18 PM roycroft: it's hard to damage a bessey clamp
05:19 PM roycroft: the main problem with them when people "borrow" them is that they have glue on them, which makes it hard to operate them
05:19 PM Tom_L: i don't loan tools
05:19 PM roycroft: i'm not talking about that kind of borrowing
05:19 PM roycroft: which is why i used the quotes
05:20 PM roycroft: i'm talking about the kind where people buy them, use them, abuse them, then return them to the store
05:20 PM roycroft: and the store personnel are too clueless to realise that they're used and unsellable as new
05:20 PM Tom_L: that's a thing?
05:20 PM Tom_L: :)
05:20 PM roycroft: i've gotten several of my bessey parallel clamps for half price because the ones in the store were used
05:21 PM Tom_L: i got an angle drill from HF for a job and got to use it 1/2 time
05:21 PM roycroft: if i can save $40-$50 i don't mind 20 spending a half hour refurbishing a clamp
05:21 PM Tom_L: the angle head stripped before i could finish drilling a hole
05:21 PM roycroft: well yeah
05:21 PM roycroft: it's made of pot metal, with some talc mixed in
05:21 PM Tom_L: i only needed it once
05:21 PM XXCoder: HF theres sites that list tools there and rate em
05:21 PM XXCoder: from pretty good to utter ripoff
05:22 PM XXCoder: forgot where though
05:22 PM Tom_L: didn't want to buy a milwaulkee just for that
05:22 PM roycroft: you can rent a hole hawg
05:23 PM Tom_L: it was for something like a 3/16" drill
05:23 PM Tom_L: i have an arm buster but it wouldn't fit in the space
05:23 PM roycroft: i have a 12v milwaukee right angle battery drill that i use for stuff like that
05:23 PM JT-Shop: armature wires were rubbing on the encoder coupling... none of the drives will come out of fault now...
05:23 PM Tom_L: $5 garage sale been thru hell and still works great
05:24 PM roycroft: i have a 1/2" milwaukee corded drill as well, and a right angle attachment for it
05:24 PM Tom_L: JT-Shop, that really sucks
05:24 PM roycroft: but the battery drill works for me most of the time
05:24 PM Tom_L: JT-Shop, you think it got the amps?
05:27 PM JT-Shop: I don't see any damage on the drives
05:28 PM Tom_L: can you remove the one drive and see about the others?
05:28 PM Tom_L: wonder what would cause them all to fault
05:34 PM JT-Shop: I've pulled the motor, I can try unplugging the drives and see what I get
05:35 PM JT-Shop: yeah unplugging the x drive and y and z are ok, the x fault light is sorta blinking
05:52 PM Tom_L: wonder why they would all fault
05:54 PM XXCoder: wonder if one shorting would affect others by lack of oower
05:54 PM Tom_L: JT-Shop, when you put the X drive back in, do the others fault then?
05:54 PM Tom_L: the X amp could be damaged
05:56 PM Tom_L: the short certainly didn't help anything
05:58 PM JT-Shop: that's what I'm thinking, can get it repaired for $400 or buy a used one for $300
05:58 PM Tom_L: did the servo get hurt or can you insulate the wire?
05:59 PM JT-Shop: I just tested the motor with a power supply and it's fine, I just need to unsolder the wire from the mill spec connector and put some heat shrink tubing on it then put it back together
06:00 PM Tom_L: yeah that's good
06:00 PM Tom_L: maybe epoxy it down to something..
06:00 PM JT-Shop: it just needs to be routed properly
06:00 PM Tom_L: k
06:01 PM Tom_L: was that one supposed to be new? or rebuilt..
06:01 PM veegee: What the hell: https://www.amazon.ca/CyberPower-OL3000RTXL2UHVN-Online-Double-Conversion-Pre-Installed/dp/B07QSMKMPN
06:01 PM veegee: Normal price is $2,300 USD
06:02 PM veegee: Maybe the insanely low price is because it's 208/240V?
06:02 PM veegee: That price is a don't-think-twice-insta-buy price
06:02 PM * Tom_L thinks veegee is an impulse buyer
06:02 PM veegee: I was searching for a friend
06:03 PM veegee: I just spotted that in the search results
06:03 PM veegee: I bought my 1kVA rack mount unit a couple of years ago for $1,000 ish
06:04 PM veegee: It works so well that I wanted to get a second high capacity one, but the price was too high. This is 1/3 the MSRP
06:05 PM cloudevil: veegee: I note fuckups happen.
06:06 PM cloudevil: I just bought 2 5C collets for $25 each.
06:06 PM cloudevil: collet holders
06:06 PM Tom_L: and now they're out of stock
06:06 PM cloudevil: The collet holders, yes.
06:07 PM veegee: cloudevil that's quite expensive
06:08 PM veegee: Tom_L the double conversion is out of stock now too ;)
06:08 PM veegee: It was the last unit and I took advantage of that price
06:09 PM cloudevil: I have a Tripp-lite 'it's double conversion now' UPS.
06:09 PM cloudevil: - I have external chargers to float the batteries at open circuit voltage under load.
06:09 PM cloudevil: And solar.
06:09 PM veegee: cloudevil https://accusizetools.com/products/5c-precision-round-collets-hardened-ground that comes to $11/collet
06:09 PM veegee: That's the kit I just bought a couple of days ago
06:10 PM cloudevil: Holder/chuck
06:10 PM veegee: Oh holders
06:10 PM cloudevil: https://smile.amazon.co.uk/gp/product/B08D9L7GY8
06:10 PM cloudevil: All of the bits are steel and not rusty, and finishes seem OK. Which is all I require for that price.
06:11 PM veegee: Yeah agreed
06:11 PM cloudevil: Actually being functional as a 5C collet would be a bonus.
06:11 PM cloudevil: (Well, rusty and to nice spec would be fine too)
06:11 PM veegee: cloudevil but your UPS setup is still not zero transfer time
06:12 PM cloudevil: veegee: It is if it's normally offline.
06:12 PM cloudevil: According to it.
06:12 PM veegee: unless it's a double conversion type, it's not truly zero
06:12 PM veegee: but it doesn't matter for 99.9999% of things
06:12 PM cloudevil: If you are using it as a pure inverter, and powering it through the battery pins, not the AC ones, ...
06:57 PM XXCoder: upgrading cnc router. cool https://youtu.be/EFe2qGp0vNk
07:00 PM XXCoder: most rigid cnc router table i ever seen, "nah this needs more rigidity" lol
07:06 PM cloudevil: Once you get to being more rigid than the stock, there isn't a whole heap of point
07:10 PM XXCoder: pretty cool though
07:34 PM cloudevil: yes
07:55 PM CaptHindsight[m]: XXCoder: all they have to do it make some forms for concrete and pour it around the frame to encapsulate it
08:01 PM XXCoder: CaptHindsight[m]: i suppose but huge aount of use i see from him is wood
08:01 PM XXCoder: which isnt really demending of frame
08:03 PM djdelorie: speaking as someone with a wobbly cnc router, probably the most important reason to stiffen it is to keep it from shaking itself apart...
08:04 PM djdelorie: esp as he's adding a heavier Z axis
08:04 PM XXCoder: that might be it, though he also stiffens space inside, in order to add drying wood to it
08:04 PM djdelorie: wood cuts best at fast feeds, which means high accelleration, etc...
08:05 PM djdelorie: well yeah, I store stuff under my router too - every flat surface becomes a table et al
08:45 PM roycroft: yes, djdelorie, but how serious are you about that?
08:45 PM roycroft: are you a member of the royal society for putting things on top of other things?
08:45 PM djdelorie: well, I did have to invent the word "deskalanche" at one point...
08:45 PM roycroft: https://www.youtube.com/watch?v=LFrdqQZ8FFc
08:47 PM djdelorie: ^^^ I'm not that organized ;-)
08:49 PM roycroft: well
08:49 PM roycroft: ballast is good, generally
08:49 PM roycroft: so there's that to be said
08:55 PM sinned691549 is now known as sinned6915
09:13 PM JavaBean: deskalanche...
09:13 PM * JavaBean shudders as he remembers
09:14 PM roycroft: apocapile
11:18 PM _unreal_: not much going on tonight
11:39 PM norias: hello