#linuxcnc Logs

Nov 03 2021

#linuxcnc Calendar

01:01 AM snaked is now known as MustangJ
01:10 AM MustangJ is now known as snaked
02:22 AM Deejay: moin
02:23 AM randy: morning
04:27 AM Tom_L: morning
04:59 AM JT-Cave: morning
07:53 AM perry_j1987: good morning
11:46 AM JT-Shop: probe complicate is Chris's baby :)
11:48 AM aaroncnc: I love the look of it but have yet had time to dive into it and try to find out why it wont work. and i dont know enough about python to know if using 2.7 is the root or not
11:49 AM JT-Shop: probe basic is not my style so I only glanced at it a bit, Joco has a much better gui I think but that's just me
11:49 AM aaroncnc: thought about buying pathpilot and seeing if i could get it to run on my RPI4 but not sure how much effort it will take.
11:49 AM JT-Shop: have you seen it?
11:49 AM aaroncnc: what is joco?
11:49 AM JT-Shop: pathpilot is open source and again not my style :)
11:50 AM JT-Shop: he is a chap from NZ
11:51 AM JT-Shop: https://forum.linuxcnc.org/qtpyvcp/40082-monokrom-qtpyvcp-gui-for-plasmac-and-mill?start=240
11:51 AM JT-Shop: nice high contrast for old eyes
11:53 AM aaroncnc: JT-Shop, thats some yellow....
11:54 AM JT-Shop: maybe a bit too much yellow but good high contrast
11:55 AM roycroft: if that were done in green it would be nice
11:55 AM roycroft: still high contrast, but green is a much more soothing color
11:55 AM roycroft: and has an old-timey glass tty look :)
11:55 AM aaroncnc: JT-Shop, i like black foreground with white text.
11:55 AM roycroft: you mean black background with white text?
11:56 AM aaroncnc: dangit yea black background and white text. sigh do to many things at once.
11:56 AM JT-Shop: old school acad black background...
11:56 AM * roycroft adopted dark mode as soon as mac os offered it, but had to back off for a while as application developers fixed their code to work with it
11:57 AM roycroft: in fact, i've been making progress figuring out qelectrotech, and still think it would be a very useful tool, but it's still broken with dark mode, and the mac os maintainer doesn't even acknowledge the problem
11:58 AM roycroft: the issue is that in the symbol library, all the symbol icons are dark grey
11:58 AM Tom_L: holy crap that's vivid
11:58 AM roycroft: and when viewed against a black background, they're all but impossible to see
11:58 AM roycroft: it's a problem other apps had
11:59 AM roycroft: from what i've been told, developers just need to link their apps against a different library to fix it - apple updated their api and have some support for automatic color switching when going from light mode to dark mode and vice versa
11:59 AM JT-Shop: after this op I have to drill and tap on the 8" each end of the chunks of 6061
12:00 PM Tom_L: what are we making today?
12:00 PM JT-Shop: oh what fun making sure it's perpendicular to the X axis
12:00 PM JT-Shop: Kawasaki hinge nest
12:00 PM Tom_L: oh i figured you'd finished that
12:01 PM unterhausen: JT-Shop, is your email address on your website?
12:02 PM JT-Shop: which website?
12:02 PM * JT-Shop has several...
12:04 PM unterhausen: any website will do :)
12:06 PM JT-Shop: jt at gnipsel dot com
12:07 PM unterhausen: thanks
12:07 PM unterhausen: your "contact me" link on mesaus is broken
12:07 PM JT-Shop: you will have to watch No Time for Sergeants filmed in 1958 to know what gnipsel means
12:07 PM JT-Shop: yea, never figured that out
12:07 PM JT-Shop: mesa is sales at mesanet dot com
12:08 PM Tom_L: that's like....... OLD!
12:11 PM JT-Shop: https://en.wikipedia.org/wiki/No_Time_for_Sergeants_(film)
12:11 PM unterhausen: I think I have seen no time for sergeants, it's as old as me
12:12 PM JT-Shop: do you remember the scene when he is in the chow hall with the Sargent and the Sargent asks him how the eye test went
12:12 PM unterhausen: no, I'm sure it has been decades since I saw it
12:14 PM JT-Shop: you need to watch it again then :)
12:17 PM Tom_L: pretty sure i've seen that as well but don't remember much about it
12:20 PM Tom_L: JT-Shop, you saw the rotary yt didn't you?
12:20 PM Tom_L: http://paste.debian.net/1217999
12:20 PM Tom_L: were the settings
12:21 PM Tom_L: and i can't figure out why they would be so different from your stepconfig settings
12:26 PM unterhausen: I suppose my roasted peppers have steamed themselves
12:27 PM roycroft: do you put them in a paper bag after roasting so that the steam will separate the skin from the flesh?
12:34 PM * Tom_L goes to get a car battery
12:34 PM Tom_L: you can see how my day started off...
12:36 PM JT-Shop: if the battery is under the hood it won't be bad... the Insight it's under the seat
12:37 PM Tom_L: i looked at some dodge thing for my niece and i'm glad i didn't have to change that one
12:38 PM Tom_L: it was buried deep in front of the wheel well
12:38 PM Tom_L: not sure if you attack it from the top, bottom or wheel well
12:38 PM JT-Shop: damn
12:38 PM JT-Shop: the Insight manual says take it to the dealer
12:38 PM Tom_L: it looked miserable
12:39 PM Tom_L: hah
12:39 PM Tom_L: dealer wanted $200+ for one, going to my regular battery guy...
12:42 PM JT-Shop: batteries have gone up in price for sure
12:51 PM JT-Shop: here goes the end holes...
12:56 PM roycroft: there is a sheet metal cover over the back and sides of my mill column
12:57 PM roycroft: the original controller board is inside that cover, as are the old switches for speed control, direction and power
12:57 PM roycroft: my vfd *almost* fits inside that cover
12:58 PM roycroft: i may be able to modify the cover so that the vfd can be installed inside it
12:58 PM roycroft: it would stick out the back a wee bit, but not very much - i could certainly live with it
12:58 PM roycroft: i think i could even put the mill stand all the way back against a wall with the vfd mounted there
01:20 PM JT-Shop: crap door was stuck and when I figured it out I ran an op with the side door off and flooded the shop
01:22 PM aaroncnc: in the hal file do scale have to have a number name. such as scale.0 or can i call them scale.spindle or scale.pwm6?
01:24 PM JT-Shop: hal signal names can be almost anything if that's what you are asking about
01:24 PM JT-Shop: http://linuxcnc.org/docs/2.8/html/hal/basic-hal.html#_net
01:26 PM aaroncnc: i need to load a few scales in my config tool and i wanted to avoid naming them scale.0 scale.1, so i was going to name them what they are tied to. such as scale.spindlespeed or scale.PWM6
01:26 PM aaroncnc: I would do a quick test but my linux cnc machine is out in the shop
01:34 PM JT-Shop: so long as it's not a pin name the signal name can be almost anything
01:49 PM JT-Shop: pretty big difference between 75 and .75 remove material lol
02:01 PM unterhausen: I want to bring in a couple of my pepper plants so the winter doesn't kill them
02:05 PM Tom_L: cleanup in isle 13
02:08 PM Tom_L: aaroncnc, http://linuxcnc.org/docs/2.8/html/man/man9/spindle.9.html
02:10 PM Tom_L: JT-Shop, i had that same decimal point issue with my limit resistor :)
02:11 PM * Tom_L thinks it's nap time
02:25 PM JT-Shop: nap time is 58 hours away
02:46 PM JT-Shop: https://pasteboard.co/R7G1n0KmxTwD.jpg
02:48 PM CaptHindsight[m]: No Time for Sergeants is definitely worth a watch if you have not seen it, or haven't in a while
03:07 PM aaroncnc: JT-Shop, what you working on?
03:14 PM CaptHindsight[m]: found the scene https://youtu.be/yyOI3Prkh8M?t=1927
03:15 PM CaptHindsight[m]: from the teleplay
03:15 PM JT-Shop: fixture for a Kawasaki 726cc air filter cover hinge assembly machine, the part I'm making holds the hinge
03:16 PM CaptHindsight[m]: but they changed the words from the film version :(
03:21 PM CaptHindsight[m]: https://youtu.be/Yc3euIOlwcA?t=99 someone posted the scene \0/
03:22 PM JT-Shop: tip from your uncle john make sure the rapid plane is higher than the material...
03:23 PM CaptHindsight[m]: aren't you supposed to learn that lesson by snapping off the cutting tool?
03:25 PM JT-Shop: I almost never have any material above Z0 except today and my finger was fast enough for once
03:42 PM XXCoder: interesting. powdercoat everywhere in part. https://www.youtube.com/watch?v=pdJRt-yd7O4
03:42 PM XXCoder: using physics to fluidize powder
03:45 PM roycroft: speaking of which, are you at all interested in making and powdercoating a support bracket for that motor mount plate, jt-shop?
03:46 PM roycroft: i can easily make the bracket, but i am not set up to powdercoat, and i'd like it to match the motor mount plate
03:47 PM roycroft: it will be almost completely hidden, so it's not a big deal to just paint it
03:47 PM XXCoder: if you has oven you can use it if i recall right
03:47 PM roycroft: especially if you're busy or it would end up being expensive
03:48 PM XXCoder: i wouldnt use oven used for food but yeah
03:53 PM Tom_L: JT-Shop, that's why i set mine up the way i do
03:53 PM Tom_L: XXCoder, why not?
03:53 PM Tom_L: covid kills all taste buds anyway :)
03:56 PM XXCoder: lol
03:58 PM JT-Shop: roycroft, could be...
03:59 PM CaptHindsight[m]: they still sell powders for coatings that use isocyanates, so beware of what powder you buy and how you bake them
04:07 PM unterhausen: Andy griffin looks a lot like ron howard in that movie
04:07 PM JT-Shop: I use columbia coatings
04:10 PM CaptHindsight[m]: TGIC Free do not have the isocyanates
04:10 PM JT-Shop: https://pasteboard.co/Z30ShKH2aAiZ.jpg
04:10 PM CaptHindsight[m]: they used what are called blocked isocyantes, they become active at higher temps, heat cured
04:10 PM JT-Shop: what is TGIC Free
04:12 PM CaptHindsight[m]: https://www.tcipowder.com/media/2603/haa-vs-tgic-comparison-tech-bulletin-02-07-21-1.pdf
04:12 PM MrSun is now known as MrSunshine
04:14 PM roycroft: jt-shop: when i get a chance i'll draw something up and see what things look like with you at the time
04:14 PM roycroft: i'm getting really swamped right now, so i don't know how long it will be before i can get back to that project
04:14 PM JT-Shop: ok, when I get finished modifying that beast in the above link I will be powder coating all the modified parts
04:15 PM roycroft: when do you think that might be?
04:15 PM JT-Shop: I have 2-3 projects for one company that is timely so it will be a while
04:15 PM * roycroft has several looming deadlines already
04:15 PM CaptHindsight[m]: https://www.pfonline.com/articles/are-tgic-free-powder-coatings-right-for-you
04:15 PM roycroft: oh good
04:15 PM roycroft: then i have a while :)
04:16 PM roycroft: i just sold a domain name that i wasn't expecting to sell right now, and i have to really scramble to move some services off of it so i can release it
04:17 PM roycroft: and i have a bunch of stuff to deal with as the new membership secretary of the country fair
04:17 PM roycroft: and i'm finishing up an email server transition at work
04:17 PM roycroft: all of that stuff is pretty time-sensitive
04:17 PM roycroft: so yeah
04:22 PM XXCoder: wow thats powerful engine https://interestingengineering.com/ford-debuts-281-hp-electric-crate-motor?utm_source=rss&utm_medium=article&utm_content=03112021
04:28 PM unterhausen: I always wanted a fixed 90 degree miter gauge for my tablesaw. Woodpeckers just announced one for $400
04:28 PM unterhausen: not like that
04:29 PM roycroft: i have an incra miter gauge
04:29 PM roycroft: it's not fixed, but it's indexable, and dead accurate
04:30 PM JT-Shop: must be time to clean the coolant tank on the discovery 308 the screen just plugged off prob from the delrin and over flowed 3 gallons of coolant on the floor...
04:31 PM JT-Shop: unterhausen, I prefer a sled for 90° cuts on the table saw
04:31 PM Tom_L: funny when ppl retire they all the sudden get busier
04:32 PM unterhausen: I have a sled, just want a miter gauge for quick cuts
04:32 PM roycroft: yes, i have a sled for crosscutting at 90 degrees
04:32 PM JT-Shop: https://www.youtube.com/watch?v=UbG-n--LFgQ&t=3s
04:32 PM Tom_L: need to make some mods on my rotary post
04:33 PM JT-Shop: I almost never use my miter gauge... unless it's not 90°
04:33 PM roycroft: https://incra.com/miter_gauges-miter1000hd.html
04:33 PM roycroft: that's the one i have
04:33 PM JT-Shop: nice
04:34 PM roycroft: it indexes on whole degrees, as well as on 22-1/2 degrees
04:34 PM roycroft: and has a vernier scale that lets me set angles to 6 minutes
04:34 PM unterhausen: I have an Incra, not that fancy though. 1000SE I think
04:35 PM unterhausen: I keep the stock miter gauge around for quick cuts
04:35 PM roycroft: if you really want one that's fixed at exactly 90 degrees and never changes, you can make one pretty easily
04:36 PM roycroft: i leave my incra set to 90 degrees most of the time
04:36 PM roycroft: it's always ready to go, and if it's not, it's very repeateble, so i just set it to 90 degrees and have to check it
04:37 PM unterhausen: mine is on a miter express, so it's unwieldy
04:38 PM unterhausen: the woodpeckers 90 degree miter gauge (sic) isn't really what I want either, too big
04:39 PM unterhausen: only $330 https://www.woodpeck.com/exact-90-miter-gauge.html
04:48 PM roycroft: that's nice
04:48 PM roycroft: the incra 1000hd is $100 less, though
04:48 PM roycroft: and as long as you don't drop it it really is very repeatable
04:48 PM roycroft: i should imagine that if you drop the woodpecker's one it would be a bit off as well
04:49 PM JT-Shop: https://www.amazon.com/Osborne-Table-Triangular-Stability-Telescoping/dp/B002KHNMEC
04:49 PM JT-Shop: I have that one, super locked down
04:51 PM roycroft: that one is pretty nice, jt-shop
04:51 PM roycroft: the triangular design would make it really solid, even with long boards
04:51 PM CaptHindsight[m]: https://www.iwata-airbrush.com/nozzle-i5351b.html who has a swiss turn shop that can make something similar, that thread is ~2-3mm
04:52 PM CaptHindsight[m]: the ID of the nozzle is ~0.2mm
04:52 PM Tom_L: left hand thread
04:53 PM Tom_L: ?
04:53 PM CaptHindsight[m]: that is not important, picture for reference only
04:53 PM CaptHindsight[m]: i can make a lathe to do it but looking for a shop
04:54 PM Tom_L: looks like a Brown & Sharp part
04:56 PM CaptHindsight[m]: Chinese knock-offs are similar
04:56 PM Tom_L: too big for a davenport
04:56 PM Tom_L: well, maybe not but in general they run tiny parts
04:57 PM CaptHindsight[m]: https://www.amazon.com/Airbrush-Nozzles-Needles-3Pcs-Replacement-Accessories/dp/B07QDN2B21
04:57 PM CaptHindsight[m]: $8 for a set of 3 vs $65ea
04:58 PM CaptHindsight[m]: but we all know about Chinese consistency
04:58 PM Tom_L: https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20211103134332&SearchText=Airbrush+Nozzles+and+Needles+3Pcs+0.2mm+0.3mm+0.5m
04:58 PM Tom_L: $3
05:00 PM * roycroft will probably avoid aliexpress for a few years again after his recent experience with them
05:00 PM CaptHindsight[m]: only a few actual manufacturers in China, most postings are resellers
05:01 PM XXCoder: roy many sellers there like amazon
05:01 PM JT-Shop: roycroft, it has detents at common angles so you can press the button on the bottom and get an exact angle
05:01 PM CaptHindsight[m]: 3 for $2.35, the shipping costs more
05:01 PM CaptHindsight[m]: https://www.aliexpress.com/item/32631795786.html
05:09 PM JT-Shop: https://www.amazon.com/Osborne-Table-Triangular-Stability-Telescoping/dp/B002KHNMEC
05:09 PM CaptHindsight[m]: even if I found ones that might work well enough, I'd like to fab them local
05:10 PM CaptHindsight[m]: woodworking fences always seem so flimsy
05:11 PM unterhausen: I think the tooth implant I have is left hand threaded
05:11 PM CaptHindsight[m]: unterhausen: do you chew CW or CCW?
05:12 PM unterhausen: it's going to be weird having a tooth again, I have just had the post for 3 years now, I think
05:12 PM CaptHindsight[m]: oh there is an idea, attachments for dental implants
05:12 PM unterhausen: crown was supposed to be placed the day they shut down for pandemic
05:12 PM unterhausen: then the dentist left town
05:12 PM CaptHindsight[m]: saw teeth, grippers, laser etc
05:12 PM unterhausen: now they lost the crown, so they are getting another one made
05:13 PM CaptHindsight[m]: oh great
05:13 PM CaptHindsight[m]: did they leave you with a small stud protruding from your gum line?
05:13 PM unterhausen: they found it a year ago, but no dentist to install it, so now they lost it again
05:13 PM unterhausen: yeah, small stud
05:14 PM unterhausen: chewing no problem though
05:14 PM unterhausen: the dentist had the cutest little ratchet wrench
05:14 PM CaptHindsight[m]: I'd like my wisdom teeth replaced with carbide cutters
05:15 PM CaptHindsight[m]: my tongue would not be happy every now and then
05:15 PM unterhausen: not having a tooth there is similar. Really easy to chew apples and things like that
05:15 PM unterhausen: I figure 5 years from now they are going to find the first crown again
05:16 PM CaptHindsight[m]: hey look whats down under this seat cushion
05:17 PM * JT-Shop punches out for the day
05:19 PM CaptHindsight[m]: no protractor on that fence
05:19 PM JT-Shop: which fence?
05:20 PM CaptHindsight[m]: do they expect me to now trig or somethin?
05:20 PM CaptHindsight[m]: the Osborne
05:20 PM JT-Shop: yes it does
05:21 PM JT-Shop: and positive stops at common angles!
05:22 PM JT-Shop: they are out of the box thinkers and don't just copy other designs
05:24 PM CaptHindsight[m]: unterhausen: https://www.amazon.com/Dental-Implant-Ratchet-Torque-Wrench/dp/B07K1HTNR2
05:24 PM roycroft: it looks like a really nice fence
05:24 PM roycroft: if i'm honest, one reason i got the incra is because i have a lot of other incra jigs/fences/etc., and it's nice to be able to interchagne parts/stops/etc. between them
05:25 PM CaptHindsight[m]: unterhausen: I saw an impact wrench as well
05:27 PM roycroft: so ups just arrived, and that whole situation was a bit strange
05:27 PM roycroft: they delivered a parcel from lie-nielsen
05:28 PM roycroft: but it was shipped ups surepost, which uses ups for that long haul, and usps for last mile delivery
05:28 PM roycroft: that was fine
05:28 PM roycroft: ups delivered to the post office just fine
05:28 PM roycroft: but then the post office gave it back to ups, and ups put it on a truck and delivered it tome
05:28 PM * JT-Shop wonders what roycroft got from lie-nielsen?
05:28 PM roycroft: i was wondering about the "delivery exception" message that's been on the website as the status for a week
05:29 PM roycroft: just a small router plane that i've wanted forever and that has been out of stock forever
05:29 PM JT-Shop: cool
05:29 PM roycroft: yeah
05:29 PM roycroft: my big one gets in the way upon occasion
05:29 PM roycroft: i just wonder why the usps decided not to deliver it
05:30 PM JT-Shop: one shouldn't wonder why usps does anything
05:30 PM roycroft: i saw the address labels, and it was definitely delievered by ups to the post office, and the post office delivered it back to ups
05:30 PM JT-Shop: https://www.lie-nielsen.com/products/small-router-plane
05:30 PM JT-Shop: it will just give you worry lines lol
05:31 PM roycroft: that's the one
05:31 PM roycroft: and i got the open mouth model
05:31 PM roycroft: i'm surprised they're still in stock
05:31 PM roycroft: usually these days whenever somthing becomes available from lie-nielsen it sells out in a matter of hours
05:31 PM JT-Shop: wow
05:31 PM roycroft: perhaps they're finally ramping production back up
05:32 PM roycroft: they used to have most things in stock all the time, but that all went cattywampus when the pandemic began
05:32 PM * JT-Shop wonders if a Ridgeline is coming from Santa Claus...
05:33 PM roycroft: for the past year and a half they've focused on having a small number of "core tools" in stock, and have done limited production runs of some of their other tools, with email waiting lists
05:33 PM roycroft: and a large number of tools and accessories they've just not had in stock for a year and a half
05:34 PM JT-Shop: did you get the depth stop?
05:34 PM roycroft: yes
05:35 PM roycroft: i did not get a pointy blade though
05:35 PM roycroft: i'll probably do that later
05:35 PM roycroft: i have a large router plane, and i was going to order the blade adapter for it so i could use blades made for the small one in the large one, but that's one of the parts they haven't made since the pandemic
05:36 PM roycroft: i could make one myself, but i'm not inspired to do so
05:36 PM roycroft: making square holes in metal is too much work
05:36 PM roycroft: unless one has the proper square broach, which i don't
05:37 PM roycroft: oh, i know why i did not get the pointy blade - they're out of stock
05:37 PM roycroft: that's right
05:37 PM JT-Shop: watching the video
05:37 PM JT-Shop: lol
05:37 PM roycroft: the router plane video?
05:38 PM JT-Shop: aye
05:38 PM roycroft: there's a lot of lie-nie vs. veritas videos about
05:38 PM JT-Shop: a modern Roy Underhill
05:38 PM roycroft: and most folks seem to pick one camp or the other
05:38 PM roycroft: but even the die-hard veritas fans seem to favor the lie-nie large router plane over the veritas
05:39 PM roycroft: daneb is more like the bob ross of woodworking
05:39 PM roycroft: he's not as excitable as roy
05:40 PM roycroft: and he is not constantly bleeding
05:40 PM unterhausen: is the video on that product page?
05:40 PM unterhausen: sorry, I see it
05:40 PM JT-Shop: yes
05:40 PM JT-Shop: hmm someone just purchased some 3.7 din rail mounts
05:41 PM JT-Shop: LOL aye roy is fun to watch
05:41 PM unterhausen: not my fault on the din rail mounts this time
05:42 PM Tom_L: just don't mix em in with some spyder parts
05:42 PM JT-Shop: lol
05:43 PM roycroft: with roy, it's not a project if there's not any blood
05:43 PM JT-Shop: or some screw ups
05:43 PM roycroft: it's like julia child
05:43 PM roycroft: it's not a recipe if there's no red wine with her
05:43 PM JT-Shop: quite right
05:43 PM roycroft: and not in the recipe
05:43 PM roycroft: in her belly
05:44 PM JT-Shop: her story is quite fascinating she has spirit
05:45 PM roycroft: yes, indeed
05:45 PM roycroft: it's remarkable what she did
05:45 PM roycroft: especially at the time
05:45 PM JT-Shop: yep
05:46 PM roycroft: she would be remarkable today, but she totally blew away what was a very low gender glass ceiling back in the '70s
05:49 PM JT-Shop: I remember watching some of her cooking shows a long time ago
05:51 PM JT-Shop: we have a few nights of below freezing starting tonight here
06:05 PM Tom_L: good thing you drained the hoses
06:06 PM Tom_L: stays above freezing here
06:06 PM JT-Shop: yep all drained
06:07 PM JT-Shop: weekend looks real nice here
06:07 PM Tom_L: do you know where i'd find out about arcs on the A axis?
06:07 PM Tom_L: i can have it spit out lines but i'd rather make arcs work
06:07 PM JT-Shop: no such thing afaik
06:08 PM Tom_L: not supported?
06:08 PM JT-Shop: rotary is just degrees
06:08 PM Tom_L: not if you're milling a wrapped profile
06:08 PM JT-Shop: no way to tell what diameter an arc is...
06:08 PM Tom_L: yeah, that's somewhat the error i get
06:09 PM Tom_L: also, the z doesn't wait for A to finish rotation for drill cycles
06:10 PM Tom_L: i'll dig further into the settings on both ends
06:10 PM JT-Shop: might need a que buster after the a move
06:11 PM Tom_L: how do you do that?
06:11 PM JT-Shop: my indexer should be here Tuesday
06:11 PM Tom_L: same kind?
06:11 PM JT-Shop: G4 works
06:11 PM JT-Shop: yea
06:11 PM Tom_L: :)
06:12 PM Tom_L: G4 probably wouldn't do
06:12 PM Tom_L: no way to predict how long it takes to move
06:13 PM JT-Shop: it will bust the read ahead
06:13 PM JT-Shop: or G61 or g61.1
06:14 PM Tom_L: that might work
06:15 PM Tom_L: i can switch it back to indexer in the cad cam too
06:16 PM JT-Shop: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?QueuebustersRevisited
06:18 PM * JT-Shop calls it a night as soon as Simple Sister is done playing
06:22 PM Tom_L: you want the iges for that mount?
06:22 PM Tom_L: good for at least the hole pattern
06:22 PM Tom_L: and corner pockets
06:27 PM robotustra: finally made some chips
06:31 PM macgalempsy: evening gents
06:33 PM robotustra: https://www.youtube.com/watch?v=W1PRMQqAZ0E
06:34 PM XXCoder: way to go
06:37 PM macgalempsy: thats got to be a good feeling to have that baby working
06:40 PM robotustra: yeah, finally, it was long build
06:41 PM robotustra: there a lot of things to do yet, like protections, cnc part
07:11 PM _unreal_: hum
07:21 PM _unreal_: ve7it, I got a few more of those BLDC motors. and FINALLY got my self an other one with an encoder on it
07:22 PM robotustra: for spindle?
07:27 PM solarwind: I figured out the problem regarding lumpy braze material when oxy propane brazing
07:27 PM _unreal_: robotustra, if your asking me. NO they are motion control BLDC's pulled from stupid expensive luxury super yacht SAT's
07:27 PM solarwind: It's because of gas impregnation due to the very high gas velocity compared to oxy acetylene
07:28 PM robotustra: _unreal_, what do you use it for?
07:28 PM solarwind: Heating from the bottom (opposite) side of the plate and brazing on the top side gives good results
07:28 PM _unreal_: most of the one's I have only have the hall sensors. which is 3. but these special one's also have a built in precision encoder
07:28 PM solarwind: But it's horribly inefficient and a huge waste of oxygen.
07:28 PM _unreal_: currently nothing. but at some point I will. regardless high speed high power
07:29 PM _unreal_: they are 30/oz/in
07:29 PM solarwind: Maybe propylene will behave better
07:29 PM solarwind: Even harder to acquire than acetylene but not as expensive
07:29 PM _unreal_: but capable of what 5-10k RPM with out loss of position
07:30 PM robotustra: _unreal_, if you are talking about momentum it should have oz*in dimention
07:30 PM robotustra: not oz/in :)
07:30 PM _unreal_: what ever
07:30 PM _unreal_: I'm not getting into high detail. I will tell you the one's with encoders are like $500 a peace
07:31 PM _unreal_: and the most common part to fail on the SAT's mainly its the bearings that go bad on them. do to non stop use
07:31 PM robotustra: my spindle motor is a servo with encoder which is about 500$
07:31 PM _unreal_: these are nema24
07:32 PM _unreal_: and rated for the marine environment
07:32 PM _unreal_: one of the sat's I pulled apart had stainless steel steppers
07:33 PM _unreal_: got 3 of those. HEAVY TOO 200oz/in as I recall standard 1.8 degree
07:33 PM robotustra: _unreal_, what project you'll use it for?
07:34 PM _unreal_: for which steppers?
07:34 PM _unreal_: I got a lot of steppers and BLDC's
07:34 PM _unreal_: and servos
07:35 PM robotustra: I spent a half of day by fitting backplate to the chuck
07:35 PM robotustra: _unreal_, from ebay?
07:35 PM robotustra: or other sources?
07:35 PM _unreal_: ebay?
07:35 PM _unreal_: I get them from work
07:37 PM robotustra: nice work then
07:37 PM robotustra: lathing cast iron is a mess
07:38 PM _unreal_: mainly https://images.carid.com/intellian/boating-marine/t3-91aw2.jpg
07:38 PM _unreal_: those
07:40 PM robotustra: is it military grade stuff or usual one?
07:40 PM _unreal_: marine
07:40 PM _unreal_: as in luxury boats
07:40 PM _unreal_: yachts
07:43 PM robotustra: _unreal_, https://www.youtube.com/watch?v=W1PRMQqAZ0E
08:00 PM macgalempsy: can anyone give some advice on sourcing DC motor drives for my machine? the current drives are set in torque mode, which have been very difficult to tune. The velocity mode on the current drive requires a tach, which the motors do not have.
08:03 PM Tom_L: have you looked at gecko?
08:03 PM Tom_L: i haven't used their servo drivers..
08:03 PM macgalempsy: i have not looked at gecko, but will have a look.
08:04 PM Tom_L: i wouldn't trade my stepper drivers
08:04 PM robotustra: macgalempsy, what is your machine? for spindle or for axii?
08:06 PM robotustra: I use these ones with built in driver https://www.aliexpress.com/item/32812757101.html
08:06 PM robotustra: 20-50VDC input
08:07 PM _unreal_: macgalempsy, DC motor or bldc?
08:07 PM _unreal_: err brushed or brushless
08:08 PM macgalempsy: sorry, it looks like the Gecko 320x is within specs of the current unit
08:08 PM macgalempsy: brushed motor
08:08 PM _unreal_: how any amps?
08:09 PM _unreal_: just trying to figure scale
08:10 PM macgalempsy: the continuous is 10A with a 20A peak
08:10 PM _unreal_: OH ya geckos
08:10 PM _unreal_: not small scale
08:11 PM robotustra: macgalempsy, what machine are you building?
08:12 PM macgalempsy: it is a retrofit of a small servo machine. if you want, I will msg you the forum link
08:13 PM robotustra: pictures links are always welcome
08:13 PM robotustra: what power of the motor do you use?
08:13 PM macgalempsy: Tom, this shows the drives take the encoders directly and PID tuning is done on the drive.
08:15 PM macgalempsy: nice little forum article on these geckos
08:16 PM macgalempsy: this says they wont work with the 7i77...
08:19 PM CaptHindsight[m]: macgalempsy: 7i77 has its own PID
08:20 PM macgalempsy: right, but the PID has been utterly impossible to nail down
08:20 PM macgalempsy: so after all this wasted time, I am looking for an alternative
08:20 PM CaptHindsight[m]: the motor posted above is a closed loop stepper
08:21 PM CaptHindsight[m]: you can use it with an LPT port and BOB or 7i76 and similar
08:21 PM macgalempsy: yeah. thats what this forum was stating, it takes step and direction
08:21 PM CaptHindsight[m]: you just supply Step and Dir
08:21 PM CaptHindsight[m]: 7i77 is for analog servos
08:21 PM macgalempsy: yes. the machine is brushed DC
08:22 PM macgalempsy: with copely controls in torque mode
08:22 PM macgalempsy: there is a velocity mode on the drives, but there is not tach
08:22 PM CaptHindsight[m]: sorry I didn't read all the backlog yet
08:23 PM CaptHindsight[m]: macgalempsy: do you wish to replace the brushed DC motors with closed loop steppers?
08:23 PM macgalempsy: no. I wish to change the drives and keep the motors
08:24 PM CaptHindsight[m]: so you wish to keep the brushed DC motors?
08:24 PM macgalempsy: if possible
08:24 PM CaptHindsight[m]: "the current drives are set in torque mode, which have been very difficult to tune. The velocity mode on the current drive requires a tach, which the motors do not have."
08:24 PM CaptHindsight[m]: what are used for encoders?
08:25 PM macgalempsy: tamagowa (sp?) the count is 50000
08:25 PM CaptHindsight[m]: do you want to have closed loop brushed DC motors?
08:25 PM CaptHindsight[m]: do you have any drives in mind yet?
08:26 PM macgalempsy: no clue on the drives
08:26 PM CaptHindsight[m]: ah ok
08:26 PM CaptHindsight[m]: tamagowa incremental encoders? quadrature output or unknown?
08:26 PM macgalempsy: the current drives are 90V max (operated at 70V) with 10A continuous
08:27 PM macgalempsy: i do not recall off the top of my head.
08:27 PM macgalempsy: they read correctly in linuxcnc
08:27 PM macgalempsy: the machine has operated in the past, but has never been perfect
08:28 PM macgalempsy: the A Axis has never been able to reduce the following error to a usable level
08:30 PM CaptHindsight[m]: https://www.motioncontrolproducts.com/drives/servo-drives/advanced-motion-controls/axcent-servo-drives/
08:30 PM macgalempsy: well,,,the mrs is asking me to take a break from the office....
08:32 PM CaptHindsight[m]: https://www.a-m-c.com/product/azbe25a20/
08:32 PM CaptHindsight[m]: ok she's cracking the whip, see you later :)
08:34 PM XXCoder: bsdm time?
08:38 PM -!- #linuxcnc mode set to +v by ChanServ
08:38 PM CaptHindsight[m]: https://granitedevices.com/oldsite/vsde-dualdc-servo
08:43 PM unterhausen: I have some dc servos that have tacs built into the encoders somehow
08:43 PM unterhausen: no wonder they went out of business
09:16 PM Tom_L: rotary axis needs to stop before linear move. any idea what code for that? G61 G61.1 G04 don't work for that
09:17 PM Tom_L: maybe i need to use LOCKING_INDEXER_JOINT ?
09:19 PM Tom_L: http://linuxcnc.org/docs/2.8/html/config/ini-config.html#_axis__lt_letter_gt_section
09:20 PM skunkworks: Does a locking indexer allow for g1? (the k&t has locking indexer)
09:21 PM Tom_L: well, i haven't tried that yet
09:21 PM skunkworks: do you need g1?
09:21 PM Tom_L: i did change my post to output arcs as linear moves so i can profile on the rotary
09:22 PM Tom_L: i need to get the scale right but both X and A move together
09:22 PM Tom_L: skunkworks, i'm just testing options to see what i can get to work
09:23 PM Tom_L: the post also puts out canned cycles but doesn't wait for the rotary to finish moving
09:23 PM Tom_L: so it's turning as the spindle is going down
09:23 PM skunkworks: ah - I like testing...
09:23 PM Tom_L: the rotary is about a foot out of harms way
09:23 PM Tom_L: just watching results right now
09:24 PM Tom_L: i didn't think my cam would put out full rotary moves but aparently it will
09:24 PM Tom_L: i thought it was just indexing
09:25 PM Tom_L: but at least it's putting out working code
09:26 PM Tom_L: just not working right :)
09:26 PM skunkworks: lol - what isn't working right?
09:26 PM Tom_L: linear moves don't wait for the rotary position
09:27 PM Tom_L: i'm writing the post from scratch...
09:28 PM Tom_L: it got jt inspired to buy an indexing head :)
09:39 PM skunkworks: lol
09:39 PM skunkworks: hmm - do you mean blending?
09:40 PM Tom_L: no i don't think so
09:40 PM skunkworks: did you get the fe and accel/vel figured out?
09:40 PM Tom_L: it's turning nice but not calibrated
09:40 PM skunkworks: because if it is getting behind - it will look funky I bet..
09:41 PM skunkworks: bring up a meter showing the a axis following error...
09:42 PM skunkworks: because all moves should stop at the same time...
09:43 PM Tom_L: right
09:43 PM Tom_L: i might need a hand setting that up to capture
09:43 PM Tom_L: but not tonight
09:45 PM Tom_L: i should simplify my test file a little
11:10 PM CaptHindsight[m]: I have never noticed G code for a linear axis starting while a previous line of G code for a rotary axis is still running
11:11 PM CaptHindsight[m]: Please post some example code if you get a chance. Are you sure that rotary and linear motion is not ending up on the same lines of code in your program?
11:12 PM Tom_L: on the profile part of the test yes, X and A are on the same line but they should be
11:12 PM CaptHindsight[m]: does it happen on a simulator as well?
11:13 PM Tom_L: on the canned cycle part, A is on a line by itself
11:13 PM Tom_L: i haven't tested it on sim
11:13 PM CaptHindsight[m]: I'd expect following errors on the rotary
11:13 PM Tom_L: well i do get them
11:14 PM Tom_L: and i haven't been able to home it yet, no switch wired yet
11:14 PM CaptHindsight[m]: if the rotary is still running when the next line has already been started
11:14 PM CaptHindsight[m]: ah so, you just need to fix all the configs first
11:14 PM Tom_L: i know i have a few things to clear up but i figured the code should run somewhat
11:15 PM Tom_L: unless i can just turn homing off for that axis
11:16 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/rotary/mount/Rotary_test.txt
11:16 PM Tom_L: i'm still working on the post...
11:17 PM Tom_L: https://www.youtube.com/watch?v=ZN9aw9094ag
11:17 PM Tom_L: that's what that code is except i added a drill or two
11:17 PM Tom_L: and the spiral isn't flat it moves in X
11:18 PM Tom_L: ~4" in x approx
11:20 PM Tom_L: i was testing G61 in that file but it made no difference
11:23 PM CaptHindsight[m]: you should be able to put a sharpie in the dead spindle and write graphics all over a cylinder
11:23 PM Tom_L: first attempt of the wrapped code was using arcs but that didn't work so i changed the output to line segments
11:23 PM Tom_L: yes
11:23 PM CaptHindsight[m]: https://www.scorchworks.com/Gcoderipper/gcoderipper.html
11:23 PM Tom_L: i'm also writing the post as i go
11:25 PM CaptHindsight[m]: the many variables at once approach :)
11:25 PM Tom_L: oh hell ya
11:25 PM Tom_L: well i needed some gcode to use for a test
11:25 PM Tom_L: that part is getting closer
11:28 PM Tom_L: i'll figure out a home switch soon
11:29 PM CaptHindsight[m]: maybe play around with getting used to degrees/sec vs linear motion
11:29 PM roycroft: you can try putting on some ruby slippers and clicking them together three times
11:29 PM Tom_L: yeah that's been part of my problem
11:31 PM Tom_L: it _should_ be able to do a full rotation in a minute
11:31 PM Tom_L: finding out what the stepper can do was part of yesterdays testing
11:33 PM CaptHindsight[m]: from my calculator backlog i think you have 80K steps per rev
11:33 PM Tom_L: yes
11:33 PM Tom_L: i wrote all that down
11:34 PM Tom_L: scale is set to 222.22 now
11:34 PM Tom_L: which is what you figured it should be
11:34 PM CaptHindsight[m]: 0.0045 degrees = 16.2 seconds of arc
11:34 PM CaptHindsight[m]: math works
11:35 PM Tom_L: seconds as in distance or seconds as in time?
11:36 PM Tom_L: distance.
11:36 PM CaptHindsight[m]: i don't think you need the x 10 micro stepping
11:36 PM Tom_L: it's built in
11:37 PM CaptHindsight[m]: for instance if you were to work with a 2 in dia cylinder the 80,000 steps/rev = 0.0000785 in per step
11:38 PM CaptHindsight[m]: 4 in dia = 0.000157 in per step
11:39 PM CaptHindsight[m]: that is just shy of 4 microns
11:40 PM Tom_L: ok time to call it a night
11:40 PM CaptHindsight[m]: https://en.wikipedia.org/wiki/Minute_and_second_of_arc
11:40 PM CaptHindsight[m]: might have been covered in HS math
11:40 PM CaptHindsight[m]: maybe not
11:41 PM Tom_L: gnite
11:45 PM CaptHindsight[m]: SpeedCrunch is handy
11:45 PM CaptHindsight[m]: https://speedcrunch.org/
11:48 PM CaptHindsight[m]: https://www.youtube.com/watch?v=5GFLkgDAzNY