#linuxcnc Logs
Dec 06 2021
#linuxcnc Calendar
12:26 AM Bleepshop: Tom_L: I've got a PC with LinuxCNC loaded on it and a Linsn RV901T card I'm hoping to fake a 7i90 with. There's a guy running an RV901T as a 7i90with a modified HostMot2 via SPI from a Raspberry Pi. https://github.com/q3k/chubby75/issues/85
01:42 AM CaptHindsight[m]: https://www.youtube.com/watch?v=UXWcg7PwRJs
01:46 AM CaptHindsight[m]: 3 axis - up to ~40 KHz
01:46 AM CaptHindsight[m]: 4 digital input
01:46 AM CaptHindsight[m]: 3 digital output
01:47 AM Loetmichel: Oh maaan. arrrived at the company monday morning: all 3d printers offline, server offline. Can somebody PLEASE tell my boss to NOT simply shut off Server PCs?
01:47 AM Loetmichel: ... NIICE! "no boot device found" ... BOOOOOSSS!!!! :(
02:02 AM Deejay: moin
02:05 AM randy: morning
02:10 AM randy: hehe, funny, i have a linsen card for my LED panel "playground".
02:46 AM -!- #linuxcnc mode set to +v by ChanServ
02:46 AM -!- #linuxcnc mode set to +v by ChanServ
03:33 AM Loetmichel: well, got the damaged disk to copy... ddrescue says: 19 hours for 250gb... and thats not because USB3... had to set it to 20 retries for some secors
03:41 AM XXCoder: loet hopefully successfl backup
03:42 AM Loetmichel: not backup
03:43 AM Loetmichel: doing a direct clone onto a new disk
03:43 AM XXCoder: techinically backing to other disk ;) but yea
05:07 AM JT-Cave: morning
06:28 AM Tom_L: morning
06:29 AM Tom_L: 32F
06:29 AM Tom_L: windy
06:30 AM XXCoder: 42f. rain
06:31 AM XXCoder: this week looks like finally I can remember road color
06:31 AM Loetmichel: 35F, windy... out smoking in tshirt and jeans ;)
06:42 AM JT-Cave: supposed to be windy here but I've not stuck my head out a window to find out...
08:28 AM -!- #linuxcnc mode set to +v by ChanServ
09:17 AM unterhaus: showers all afternoon
09:55 AM roguish[m]: good morning...... chilly here, mid 40's, very foggy and damp cold.
10:04 AM roycroft: the weather is similar here, although the fog is not too dense
10:17 AM roguish[m]: Arcata, rainy today, and most of the week.
10:18 AM roguish[m]: Ashland, the same, with chance of snow late in the week
10:21 AM unterhaus: we're about to get a week of mostly miserable weather, which is normal
11:18 AM JT-Cave: 47°F high 44°F today
12:02 PM roycroft: this should be interesting - i'm attempting to upgrade another machine from debian 10.11 to debian 11.1
12:02 PM roycroft: and the machine is running mariadb
12:02 PM roycroft: every upgrade attempt i've made on machines running mariadb has failed - mariadb refuses to start after rebooting, and does not indicate why
12:03 PM roycroft: but my previous attempts were all with 11.0, not 11.1
12:03 PM roycroft: fresh installs work fine
12:07 PM roycroft: but this time for sure!
12:15 PM skunkworks: https://youtu.be/60oldtDCftg
12:19 PM roycroft: presto!
12:19 PM roycroft: this time it worked
12:26 PM enleth: so I have this ER32 holder from BISON, locally made, looks really well made, came with a nut of course - and when I snap a chinese 12mm collet into the nut, its face is recessed instead of flush with the face of the nut, and the inner diameter goes down to 11.5 right off the bat
12:26 PM enleth: have you seen a collet do that before?
12:27 PM roycroft: i have not seen that
12:27 PM roycroft: try a different collet
12:28 PM roycroft: i have a couple er20 spindles and i just got an er40 collet chuck
12:28 PM enleth: I'm waiting for one to arrive now, I'm just wondering if that's a common problem with cheap junk collets
12:28 PM roycroft: the collets are flush on all of them, and do not reduce in diameter
12:28 PM roycroft: maybe check for gunk in the collet nut?
12:29 PM enleth: it's spotless, the thing has never been used before
12:30 PM enleth: the collet is quite tight in there in general
12:30 PM enleth: I'm used to ER16 collets rattling in the nut with no tool inserted
12:30 PM enleth: which makes sense, it's supposed to just hold it there, not pre-compress
12:31 PM enleth: oh well, I ordered a nut of a different make, too
12:31 PM t4nk_freenode: I'm getting burrs in my eyes on a dailyt basis from my chinois er11s
12:31 PM enleth: we'll see what fits where in the end
12:31 PM t4nk_freenode: they're brand new too ;)
12:36 PM enleth: lacking evidence to the contrary, I'm going with an initial assumption that the collet is garbage and the holder/nut is made properly
12:36 PM enleth: I mean, it is BISON
12:38 PM enleth: I know they actually do make it here, not in China, as the holder body was a semi-custom order, Erickson QC30 instead of a standard ISO30
12:41 PM enleth: and they did in fact ask one of the machinists to come over from the shop and get on the phone to answer my questions about customized and semi-finished holders
12:42 PM enleth: come to think of it, should anyone here ever need any customized stuff from BISON, I might be able to help get over the language barrier
12:43 PM enleth: I wouldn't expect any of their machinists to be fluent in English
12:49 PM enleth: but I sure do expect their custom work pricing to be dirt cheap for those of you in the US or western EU
12:54 PM Tom_L: enleth, where are you?
12:55 PM Tom_L: other than the animal, i've never heard of Bison
12:55 PM enleth: Tom_L: Warsaw, Poland - the BISON factory is about 150km from here
12:56 PM enleth: it's a happy coincidence that they're one of, I think, two remaining manufacturers of Erickson QC tooling, which is what I need for my Bridgeport
12:57 PM Tom_L: ahh
12:58 PM enleth: and if I'm not mistaken, they're a very well known brand among machinists in the US, actually considered to be something entirely separate from so-called "import" tools which imply India or China
12:58 PM t4nk_freenode: Bison, the glue company?
12:58 PM enleth: t4nk_freenode: no, the toolholder, lathe chuck, vise, etc. company
01:00 PM t4nk_freenode: mmm surely it's some part of the glue company... they'd be roasted for stealing the name
01:04 PM enleth: t4nk_freenode: as far as I can tell from a 30 second google search, they've been using the name for a few years longer than Perfecta Chemie, which introduced the Bison glue brand
01:04 PM enleth: 1948 vs 1958
01:14 PM t4nk_freenode: it's quite an impressive feat, going from hunting bisons for their skin... to having nanometer-precision machines
01:17 PM CaptHindsight[m]: I find it more impressive that we tend to go backwards after making progress cycle after cycle, as though little is learned from history
01:18 PM t4nk_freenode: (I pondered that... decided not to mention it ;)
01:20 PM CaptHindsight[m]: look how close the Romans got to modern medicine
01:21 PM Tom_L: CaptHindsight[m], that's how the aliens keep us in check
01:21 PM CaptHindsight[m]: then people from Florida conquered Rome an we got 800 years of dark
01:23 PM t4nk_freenode: they sure used a lot of lead though..... lol
01:24 PM CaptHindsight[m]: it was in their quest to find an artificial sweetener
01:26 PM CaptHindsight[m]: at least we have moved past superstition
01:27 PM CaptHindsight[m]: the Romans attributed all sorts of things to invisible angry sky people
01:27 PM CaptHindsight[m]: who falls for that anymore?
01:28 PM roycroft: who has moved past superstition?
01:28 PM roycroft: certainly not all of us
01:32 PM CaptHindsight[m]: never underestimate the power of stupid
01:32 PM Tom_L: what about the witch hunts?
01:32 PM enleth: CaptHindsight[m]: the billions of people who believe in the the split-personality-desert-zombie-guy-in-the-sky, or the billions who believe in the guy-in-the-sky pimping 70 virgins to suicide bombers
01:33 PM CaptHindsight[m]: don't look at this, it will screw up your vision for weeks https://en.wikipedia.org/wiki/McCollough_effect
01:36 PM Tom_L: CaptHindsight[m], was that some sort of click test?
01:36 PM CaptHindsight[m]: i warned you, did I not?
01:36 PM Tom_L: but you don't know the result
01:41 PM roycroft: but the question is: are the virgins lighter than a duck?
01:48 PM CaptHindsight[m]: Ask Jeves has little related results
01:50 PM roycroft: maybe you can find the answer on a gopher server
01:51 PM t4nk_freenode: heh... I'll pray for the answer thank you.
01:52 PM CaptHindsight[m]: oh sure, duh,it's historical information
02:08 PM CaptHindsight[m]: are there any good revisionist history servers or wikis?
02:56 PM roycroft: well, it produces fairly pure nitrogen
02:56 PM roycroft: ack, mischan
03:31 PM miss0r: CaptHindsight[m]: I'm at it again, can you spare me a moment to sooth my acking brain?
04:03 PM miss0r: Anyone around that can help me exit this brainfart of an electronics project?
04:03 PM miss0r: https://tinyurl.com/yyvmryy7 <- I've build this small circuit in falstad to try and eksplain what is going on to myself, as I can't figure it out. I've just blown up two parallel mounted mosfets, both rated at 600v and 360a single pulse. I'm using a gate driver to turn them on. (not the battery/switch as drawn in the sketch) After the last try both mosfets are clamped on. Can someone please help me try to figure this out?
04:04 PM miss0r: the zener diode drawn in there is in fact 10 49.9 volt TVS diodes, rated at 36A, 1500volt
04:18 PM infornography: That feel when you are trying to make something nice for yourself and you accidentally add an extra hole
04:21 PM miss0r: infornography: Go into denial and call it ornamental/wight reduction/always part of the design(no accounting for taste)
04:26 PM CloudEvil: Or B) drill four hundred extra holes to follow through.
04:27 PM infornography: ventilation is key
04:31 PM unterhaus: I was finally going to finish a project and then I realized that the bolt hole pattern didn't match up
04:31 PM unterhaus: and it's not solid, so I can't just drill another hole
04:31 PM CloudEvil: I don't have that problem, I have a drill.
04:31 PM CloudEvil: (Currently assembling 3.6m cubic shed
04:32 PM unterhaus: wouldn't work, it couldn't tighten up without becoming misaligned
04:32 PM CloudEvil: As always, the second one would be lots better.
04:54 PM unterhaus: when I built my shed I pretty much rebuilt it after I read the instructions for the siding
04:55 PM unterhaus: Why read the instructions before you build the walls?
05:26 PM * JT-Shop still has not found his shop scissors and still has one thing too many in the garage :(
05:41 PM * JT-Shop "thinks" he has a plan for the garage...
05:46 PM Tom_L: a bigger garage?
05:49 PM JT-Shop: less crap!
05:49 PM Tom_L: but... you might need that some day...
05:50 PM JT-Shop: I know and that's the big problem with saving crap
05:50 PM Tom_L: i used some of my 'crap' on the bath reno
05:51 PM Tom_L: had to do a bit of re'plumbing etc
05:52 PM JT-Shop: I scrounged through all my plumbing crap to re-work the air manifold for the shop/garage air system
05:52 PM JT-Shop: glad that is done...
05:52 PM Tom_L: as am i
05:52 PM JT-Shop: only had to buy one 1/2" black iron 90
05:53 PM JT-Shop: unterhaus, your missing one dimension...
06:01 PM unterhaus: which dimension?
06:02 PM JT-Shop: the holes from the long edge
06:03 PM CaptHindsight[m]: unterhaus: just make a hole adapter 🤭
06:04 PM unterhaus: JT the .22 thru?
06:04 PM JT-Shop: I guessed at 0.230" from the edge
06:04 PM JT-Shop: yup
06:05 PM unterhaus: oops
06:05 PM unterhaus: it doesn't matter, but it's centered on the half inch
06:05 PM JT-Shop: good thing I got tired of physical work and worked on making a model
06:05 PM JT-Shop: ok
06:06 PM unterhaus: I didn't know what cad you had, that's why I sent a model
06:06 PM JT-Shop: I use SolidWorks 2014 so a step file is good
06:06 PM unterhaus: okay, guessed wrong and sent igs
06:07 PM JT-Shop: hmm I just noticed you sent an igs too
06:07 PM unterhaus: do you want a step?
06:07 PM CaptHindsight[m]: unterhaus: maybe I can help convert
06:07 PM unterhaus: I can do it, no problem, probably should have sent both
06:08 PM JT-Shop: no, I just created a model from the pdf
06:08 PM JT-Shop: it's done so no worries except finding time to pop it in the vcm
06:09 PM JT-Shop: does it matter if the overall dimensions are 1.5" x 2.5"? 1.5" is a stock size that I have
06:09 PM Tom_L: iges to sw isn't always workable
06:09 PM Tom_L: leaves things out in space alot more often than catia
06:11 PM * JT-Shop calls it a day and goes to tuck the chickens in and read them a bed time story... maybe chicken little dunno
06:13 PM CaptHindsight[m]: -13C tonight
06:17 PM unterhaus: JT-Shop, 1.5" instead of 1" is fine
06:18 PM unterhaus: 1.5" instead of 1.25"
07:12 PM unterhaus: I'm glad to note that the youtube auto closed caption works fine on a deep southern accent
07:14 PM roycroft: *chuckle*
07:14 PM roycroft: i remember watching a "reality" tv series years ago called axe men
07:15 PM roycroft: most of the crews were in the northwet or alaska
07:15 PM Tom_L: nearly forgot about that one
07:15 PM roycroft: but they did a few seasons with crews in maine and north carolina
07:16 PM roycroft: they had to put up subtitles for both of those crewes
07:16 PM unterhaus: someone told me the moonshiner show had subtitles and I never quite understood why
07:17 PM unterhaus: I didn't think the accent was that bad. Where I grew up the accent was difficult to understand
07:17 PM roycroft: i did not need the subtitles
07:17 PM Tom_L: that aligator catching one did also
07:17 PM roycroft: oh, yeah, the guy from louisiana
07:17 PM unterhaus: I was disappointed they didn't go to the right county to find their moonshiner
07:18 PM Tom_L: one of them is a game warden
07:19 PM unterhaus: now I forget which county in virginia was dry the longest so that's where you went to find moonshine for your frat party
07:20 PM skunkworks: you betcha!
07:27 PM _unreal_: ok cnc after much annoyance is tooling
07:36 PM unterhaus: I have to take my dro apart because after all these years the ribbon cable to the keyboard decided it was too dirty and wants attention
07:59 PM roycroft: my spindle mount has now travelled from anchorage to bristol, in southwest england
09:53 PM skunkworks: played with design cad this weekend.. Dos based cad program that I was first exposed to..
09:54 PM skunkworks: it was kinda cool and learned a lot from it. It had a basic language that allowed you to automate things.
09:54 PM skunkworks: I created a basic post-processor that let you click around a shape and it would create gcode.
09:57 PM unterhaus: designcad sounds familiar
10:07 PM _unreal_: There the two work projects are done. thats 4 hours of OT :)
11:18 PM Bleepshop: _unreal_: Did I read that right last night? 2K oz/in of torque and .7m/sec ? You're supposed to spin the bit and cut the material, not punch your way through it.... ;D
11:20 PM XXCoder: bleep reminds me of my engraving test lol.
11:20 PM XXCoder: spindle wire disconnected so tool simply went though wood without breaking
11:21 PM XXCoder: expensive TC tool gonna love it
11:21 PM XXCoder: (tiny size too, 1/16 inch)
11:21 PM * Bleepshop waits impatiently for another 48 hours to pass.
11:23 PM Bleepshop: My spindle and VFD are somewhere between Goodyear AZ and Albuquerque NM.
11:25 PM Bleepshop: Meanwhile the collets, wrench and RS485 dongles are in Oklahoma City. LOL