#linuxcnc Logs

Oct 13 2020

#linuxcnc Calendar

12:00 AM CaptHindsight: https://pdfs.semanticscholar.org/721d/d71875d7f231b97340e6b514361c4081bf28.pdf
12:06 AM CaptHindsight: Low cost UV laser direct write photolithography system for rapid prototyping of microsystems
12:06 AM diginet: nice
12:06 AM CaptHindsight: there is all sorts of used lithography and processing equipment on ebay
12:12 AM Eric__: I have most of that black box labs stuff in my basement right now. Just need a laser
12:13 AM Eric__: I suppose you can control a piezo stack with linuxcnc somehow
12:14 AM Eric__: IIRC, it's currently set up to be adjusted manually
12:24 AM CaptHindsight: piezo motor will have analog, Step and Dir or similar for position control
12:24 AM CaptHindsight: motor controller
12:26 AM CaptHindsight: I'm working on a large scale silicon project now
12:27 AM CaptHindsight: holds 2000Kg of sand :)
01:17 AM Loetmichel: mornin'
01:21 AM Loetmichel: saved in the last second. nearly forgot that today is our 20th marriage anniversary. just remembered before i left home for work and whished the wife a good day. I think this evening a short trip to the candy and flowers shops are in order ;)
01:24 AM CaptHindsight: close one :)
01:24 AM Loetmichel: indeed
01:29 AM Deejay: moin
03:12 AM Loetmichel: ouch. coworker just got note from his mechanic, diagnosing his 20014 ford galaxy... low compression on 2 cylinders, all 4 sparkplugs worn beyond recognizeable, one ignition coil dead... no wonder it had the "general fault" lamp on and shuddered when accelerating... how do you miss that for so long?
03:13 AM Loetmichel: 2014
03:20 AM veegee: Regarding the forklift stuck fork positioner issue: I switched the hoses to another known working valve and confirmed that the valves are all fine.
03:20 AM veegee: Next going to disconnect the ram end from the forks to remove its load and see if it can move freely and if the forks can move as well. That should reveal where the problem is.
03:34 AM Loetmichel: hopefully
03:38 AM veegee: Loetmichel well if the cylinder can't move on its own when the load is detached, it's a faulty cylinder
03:39 AM veegee: If it moves just fine and crushes my finger against the load, it means the forks are somehow stuck in their T slot linear slideways
03:39 AM veegee: I have to buy a 1.5" socket to undo the nut holding the ram to the forks
03:43 AM Loetmichel: i would recommend to have no fingers inside the mechanics when the hydraulics are under pressure
03:44 AM Loetmichel: just a friendly advice though :)
03:44 AM veegee: lol yeah for sure
03:44 AM veegee: I was kidding about that
03:50 AM CaptHindsight: the VMC sprung a hydraulic leak in the tool changer, the fluid travelled up a flex conduit and into the control cabinet
03:50 AM CaptHindsight: down through the cabinet onto the floor on the other side of the machine
04:21 AM Loetmichel: Hmm, any advice for cheap but functional CO2 laser protective googles? expensive stuff...
04:21 AM XXCoder: eyes is what you dont cheapen on
04:22 AM Loetmichel: so far i only managed to burn a slight hole into my finger with said 40W laser cutter
04:23 AM Loetmichel: eyes are still functional
04:23 AM Loetmichel: but thats why i asked for cheap but FUNCTIONAL googles
04:26 AM XXCoder: yea dunno what would be good. i just bought one off amazon that filter peak is where my laser is.
04:26 AM XXCoder: very effective. el shite goggle that come with machine was quite less effective
04:26 AM XXCoder: goggle i got was 40 i think usd
04:29 AM centreline: how do you test the googles for effectiveness?
04:30 AM centreline: genuine question, I thought about putting mine in the laser and seeing if I could ablate something behind them but I was worried that was too destructive...
04:31 AM XXCoder: good laser meter
04:32 AM XXCoder: shine laser though goggle to sensor
04:32 AM XXCoder: issue is meter is quite expensive
04:33 AM centreline: I went with having a enclosure and buying a more expensive pair for setting up the beam path alignments, but just curious how to test efficiency outside of a lab
04:35 AM centreline: I finally found a way to add a spindle encoder to my Interact mill using a AMT102-v encoder and cutting the headstock cover down by 20mm to make clearance for it. Which has led to a different dilemma...
04:37 AM centreline: I bought 8 of the amt's off ebay from a robotics project sale because it was cheaper than buying two... If I add a 7i85 to my 5i25/7i76 card combo, is it worth adding a encoder to every stepper to make them closed loop?
05:16 AM JT-Cave: morning
06:13 AM Tom_L: morning
06:14 AM JT-Cave: 44°F here this morning
06:29 AM Tom_L: 48°F here
06:30 AM Tom_L: high 81
06:46 AM JT-Cave: going to be a nice day here to be outside... too bad I'm not done with the Defiance
06:46 AM JT-Cave: http://vintagemachinery.org/mfgindex/detail.aspx?id=245
06:52 AM JT-Cave: centreline, it's not usually worth the effort to put encoders on steppers because you can't add extra power to a stepper to make it go faster
06:53 AM JT-Cave: while there are some drives that do closed loop with steppers the magic is in the drive
07:03 AM centreline: I wondered about detecting when they break and skip to save the part being ruined, these seem to hold fast without missed steps then suddenly freewheel and slip under rapids
07:04 AM centreline: but probably better to buy hybrid steppers in future if I'm going to keep on modifying this machine
07:04 AM centreline: probably too much of a element of "Ive got these spare encoders burning a hole in the shelf" to it.
07:20 AM JT-Cave: if you are missing steps your configuration is wrong, have you done the stepper test to find the maximum velocity and acceleration your steppers can handle?
07:37 AM centreline: yes, I mostly tuned them out but it happens infrequently under odd circumstances (usually the worst possible time)
07:38 AM centreline: I noticed one stepper feels hotter than the others, so I ordered a replacement for it yesterday, so perhaps I have one going bad
07:39 AM skunkworks: steppers should be ok at the point they boil water..
07:39 AM centreline: but sat stationary for a extended period, 3 identical steppers should feel the same temperature no?
07:40 AM centreline: three I can put my hand on and theyre warm, and the 4th is too hot to touch really
07:41 AM centreline: same drivers on all 4 axis, same psu (its a big transformer based one)
07:48 AM JT-Cave: yea steppers can be very hot, seems odd that one is much hotter than the rest
08:27 AM JT-Cave: centreline, have you tried to swap two drives to see if the overheating stays with the stepper or follows the drive?
08:32 AM centreline: no, they have no connectors, just soldered directly together and heatshrinked to try and eliminate coolant ingress points, so its easiest to swap out the "bad" one, and if its replacement is same (so probably a driver issue maybe), then I have a spare for elsewhere
08:34 AM centreline: if that doesnt, I'll buy a new dm860a for that axis, and then I have a spare if I ever finish the 5th axis trunnion table
08:35 AM centreline: unless its the source, then I found it for the price of a dm860a, which is cheap use of my time
08:36 AM centreline: but I should get 4 axis dialed in first, 5th axis looks like it opens new problems, I dont think gmoccapy supports it, cam toolchain same.
08:56 AM Loetmichel: *GNAH!* This toolbox! One T3, 2 T4, 4 T5, 6(!)T7, 3 T9 bits... not a single T6 or T8... grumble.
10:40 AM * JT-Cave has never seen a drive that didn't have screw terminals...
10:47 AM jymmmm: morning
11:03 AM Tom_L: morning
11:03 AM Tom_L: at least for a bit
11:09 AM centreline: JT-Cave, at the driver end yes, If they reach each other I could swap that end instead. For some reason I was stuck thinking about swapping the motor + moving it with another.
11:26 AM Loetmichel: hehehe... Just brought 19 red and one white Baccara Roses for our 20th wedding anniversy. Wife totally woooed... not 10 minutes later: "Ah, btw, you forgot to do the dishwasher and bring the grocerys from the car yesterday..." OK, everything back to usual. ;)
11:33 AM Tom_L: true bliss
11:44 AM Rab: Loetmichel, congratulations on 20 years!
11:46 AM Loetmichel: rab: i hope there will be 20 more ;)
11:46 AM jymmmm: Loetmichel: The flowers are just an appitizer, you have to keep going thru the other 4 courses
11:46 AM Loetmichel: but thanks
11:47 AM jymmmm: Loetmichel: ...or at least gag her for a few hours until you get her to the next destination ;)
11:48 AM jymmmm: Loetmichel: virtually or literally... your choice =)
11:49 AM Loetmichel: hmm?
11:49 AM Loetmichel: i dont follow your train of thought, sorry
11:50 AM jymmmm: Loetmichel: Ya gotta keep the "woo'ing" going, not just 5 minutes. Don't give her time to think (of dishwasher, etc), plan an outing, etc
11:51 AM Loetmichel: ah!
11:52 AM jymmmm: blind fold her on a surprise road trip, where you've planned out a nice meal/picnic, etc
11:52 AM Loetmichel: nah, all well and good. I knew i forgot it. already done my chores (waiting for the laundry machine to finish though, so i can hang the stuff to dry)
11:52 AM Loetmichel: nah, she has a bad hip day. no trip today
11:52 AM jymmmm: Loetmichel: just keep her guessing
11:53 AM Loetmichel: MAN will i be happy when she has her new hip.
11:53 AM Loetmichel: cant see her in pain :(
11:53 AM jymmmm: Loetmichel: ok, fill her full of drugs, and just toss a bunch of illows and blankets in the back seat for her to be comfortable.
11:53 AM jymmmm: pillows*
11:54 AM jymmmm: Yeah, I understand that one, so fucking hard to see soemone you care about in pain and there's NOT A FUCKING THING YOU CAN DO ABOUT IT :(
11:54 AM Loetmichel: she is already as full as she dares with painkillers. that hip is 8 years overdue now.
11:54 AM Loetmichel: indeed.
11:54 AM jymmmm: Loetmichel: Pain patches (Lidoderm)???
11:55 AM Loetmichel: dont help
11:55 AM jymmmm: Loetmichel: Weed? Narco?
11:55 AM Loetmichel: atm she gets a morphine derivate.
11:55 AM jymmmm: Loetmichel: Has she tried weed?
11:55 AM Loetmichel: here's hoping that the new doc she has an appointment with next week will be better than the last one
11:55 AM Loetmichel: no, and she will probably not.
11:56 AM jymmmm: Loetmichel: Well, then try CBD instead, not as effective but can be effective for pain management in some cases.
11:57 AM jymmmm: Loetmichel: There is edibles, but can take 45 minutes to take effect.
11:57 AM jymmmm: Loetmichel: I've seen weed work where oxycodone doens't do a thing.
11:59 AM jymmmm: Loetmichel: CBD is germeny IS legal
11:59 AM jymmmm: in*
11:59 AM Loetmichel: unless you want to drive a car.
11:59 AM centreline: my wife had a long term thing then we paid for her to see the specialist private for the first consult, and he jumped her onto a fast public list
12:00 PM centreline: if she waited for the system to process her, she would have been 3+ more years...
12:00 PM Loetmichel: it is legal as a medical substance, it would still be DUI
12:00 PM jymmmm: Loetmichel: IF she's have hip pain, she's not going to be driving anyway
12:00 PM centreline: I dont know if your healthcare works the same (germany isnt it?)
12:00 PM Loetmichel: she is
12:00 PM Loetmichel: thats what the painkillers are for
12:01 PM Loetmichel: so she can move the few feet to the car
12:01 PM jymmmm: Loetmichel: Well, it comes in oil and lotions too
12:02 PM jymmmm: Loetmichel: Can't hurt to try it, if it works, at least she has an alternative solution available to her.
12:02 PM Loetmichel: jymmmm: i appreciate your wellmeaning, but she will not take anything that can cost her her drivers license even weeks later. Not my decision
12:02 PM centreline: Loetmichel, it was something crazy cheap to see the chief guy, 50e for the appointment...
12:02 PM Loetmichel: also it seems that the new Doctor she has may be able to do where the last one failed
12:03 PM jymmmm: Loetmichel: https://www.dw.com/en/germany-drivers-on-cannabis-will-no-longer-automatically-lose-license/a-48295955
12:03 PM Loetmichel: she was already on the table for the new hip when Covid started. doc even had cut her open.... and then decided to cop out because she "has been bleeding to much"
12:03 PM Loetmichel: and refused another try
12:04 PM centreline: that really sucks, sorry to hear it
12:04 PM Loetmichel: centreline: that WAS the "chief guy"
12:05 PM centreline: ok, I just know we went to the university prof who was a specialist in the field of medicine, and he diagnosed a condition she had for 8 years of doctors visits and bingo, she was sorted within 2 months
12:05 PM Loetmichel: she is now at a different clinic with a different chief guy. As far as i know its not a question IF she gets a new hip but WHEN they can fit her into the schedule
12:05 PM Loetmichel: not long now.
12:06 PM jymmmm: Darn it, my laser is on some brown truck... somewhere , but not here =(
12:07 PM centreline: ok soon hopefully, I know someone who's doctor told him he had a bruised leg over videolink because they refuse face to face with covid, and it was normal to have facial droops with the morphine for the pain, then he rang for a ambulance ignoring them and the hospital diagnosed he was in heart failure
12:08 PM jymmmm: malpractice
12:08 PM Loetmichel: looks like it. wouldnt have helped the friend though
12:08 PM centreline: difficult to sue in the UK health system (he's over there)
12:13 PM jymmmm: ah
12:13 PM jymmmm: centreline: Hire some thug to rough him up?
12:14 PM jymmmm: turn him into a pinata
12:14 PM centreline: to be fair I was considering same against my own doctor when he told my wife to go home and take painkillers when she had some pain 2 days post operation, and I made her go the hospital instead and she had a bad infection
12:15 PM jymmmm: WTH is it with doctors today?!
12:15 PM centreline: they said if we listened to him, she would have died... but he retired a few weeks later so no need
12:15 PM Loetmichel: yeah, some docs are not worth the ink on the diploma on the wall
12:15 PM centreline: they are there to stop you using expensive specialist resources, by acting as gatekeepers to it all
12:15 PM jymmmm: well, can still sue him for all he's worth
12:16 PM jymmmm: centreline: not even that, just 15 minute to make fast bucks
12:16 PM centreline: its done and dusted now, she got fixed, he retired so he's not going to screw up on anyone else so its all good
12:16 PM jymmmm: ok, fair enough, but pinta still sounds like a good idea
12:16 PM jymmmm: pinata*
12:17 PM centreline: mostly I just take the opinion that we all make mistakes occasionally, but that doesnt mean I should just take everything on trust
12:17 PM Loetmichel: indeed
12:17 PM jymmmm: Hang him by his ankles, blidfold a bunch of kids, hand them all sticks, and tell them there's LOTS of candy...
12:18 PM Loetmichel: SOMEONE is a bit prone to violence...
12:18 PM jymmmm: Loetmichel: I'm more ANTI-dumbass
12:18 PM centreline: I see it as they are general doctors, its just their job to check you have the thing broken, then decide which specialist knows more about that specific than they do to fix it
12:18 PM * JT-Shop just made a McCoy's part
12:19 PM jymmmm: Dodtors are given a blind trust to take care of their patients, they should not take that for granted or abuse it.
12:19 PM centreline: but sometimes they overreach and try to fix complex things because they find it interesting instead of doing their boring sorting
12:19 PM jymmmm: JT what's that?
12:19 PM centreline: McCoy's the potato chip makers? :)
12:22 PM centreline: Its amazon prime day here, and they just reduced the sla 3d printer I have by 48e over the price I paid. But... I ordered it a few weeks back on a "special" offer, so I ordered it again, and I'll return the new one as the original to get the discount :D
12:22 PM centreline: I wonder how many people are as tightfisted as I am :D
12:22 PM JT-Shop: McCoy
12:23 PM JT-Shop: 's is a local scrap yard
12:23 PM centreline: ooo materials trade op...!
12:23 PM JT-Shop: as designed center holes drilled and tapped, outer holes drilled and counterbore
12:24 PM JT-Shop: as programmed center holes drill and tap then drill with clearance bit then counter bore non existent outer holes
12:24 PM Loetmichel: general doctors often know less about a specific field than the patient.
12:26 PM centreline: this doctor was also supposed to be a nutritional specialist, but he didnt know about reducing carb intake to control type2 diabetes...
12:26 PM centreline: we only used him for so long because we live in the middle of nowhere in the countryside and his surgery is 10 minutes away
12:26 PM Loetmichel: there is an old joke: "GPs know a bit about everything, specialists know a lot about somthing, pathologists know everything about everything but are always to late"
12:27 PM Loetmichel: its sadly accurate
12:28 PM centreline: hindsight is a very exacting science ;)
01:15 PM CaptHindsight: centreline: which resin printer model?
01:16 PM centreline: elegoo mars pro, I'm fairly happy with it so far but they have introduced the saturn with much bigger build volume but for 600e here instead of 209e...
01:17 PM centreline: after fdm printers, the quality is jaw dropping in comparison...
01:18 PM CaptHindsight: yes, been making resin and printers for many years
01:18 PM centreline: I printed off some wide ear encoder mounts for the amt encoders so I don't have to wait for delivery
01:18 PM centreline: this is just print and go level sophistication right out the box, tiny bit of post processing but thats it
01:19 PM CaptHindsight: https://imgur.com/b4zPwKo XY down to 15um
01:19 PM centreline: I distrust the software (chitubox) but I run it in a virtual machine instance that has no route to the internet
01:19 PM CaptHindsight: with inverse microscope down to 1um
01:19 PM CaptHindsight: yea, they all spy on you
01:20 PM CaptHindsight: another reason to finish the LCNC interface for resin printers
01:20 PM centreline: it cant spy on me from its own walled garden, I do the same with malware samples too
01:21 PM centreline: I miss octoprint and slicing under linux though
01:22 PM centreline: I tried chitubox on a debian vm instance and it wouldnt run without issues, so I'm using it under win7 now
01:23 PM centreline: nice on the printer, I imagine you have less build size limitations :)
01:24 PM CaptHindsight: same projector with zoom and different focus 140um XY, 22" x 12" print area
01:24 PM centreline: how fast is it per layer and what layer resolution do you run it at?
01:25 PM CaptHindsight: https://imgur.com/zvxoHUT
01:25 PM CaptHindsight: over the large area it under 2 seconds per 100um lyer
01:27 PM CaptHindsight: 10x faster over smaller areas with lower XY
01:28 PM CaptHindsight: also depends on the resin I mix
01:29 PM centreline: do you get a huge drum of uv curing resin and mix a batch up, or is it blended from some things to make it?
01:31 PM CaptHindsight: i have a polymer co. We buy in drums of raw materials
01:31 PM centreline: ok, not something some over adventurous hobbist could do in the home shop then :)
01:31 PM CaptHindsight: raw materials are typically sold in 200Kg drum
01:32 PM CaptHindsight: dry materials in 20-30Kg bags or boxes
01:32 PM centreline: how many litres is 200kg equate to?
01:32 PM CaptHindsight: 200
01:32 PM CaptHindsight: density is ~1
01:33 PM CaptHindsight: thicker stuff 1.1
01:35 PM centreline: I buy hydraulic oil in 305L drums so I have some "home shop" drum handling capability for that sort of sizing.
01:35 PM centreline: but I cant imagine a distributer selling bulk polymer to a individual here
01:36 PM CaptHindsight: where is here?
01:36 PM centreline: I cant even find suppliers for graded aluminium or steel without having a company id
01:36 PM centreline: France
01:36 PM CaptHindsight: then pick it up yourself
01:37 PM centreline: so its made here in France? I mean, if I turn up wtih a suitable vehicle to somewhere making it, they wont sell to me because I do not have a SIRET number
01:37 PM CaptHindsight: yeah depends on the country, even in China it is tough to move liquids around
01:37 PM centreline: I use my friends for steel/alu/welding gas purchases
01:38 PM centreline: but he's not authorised to buy outside his metier (work field)
01:38 PM CaptHindsight: liquids are scary
01:39 PM CaptHindsight: i ship to Universities in France all the time
01:40 PM centreline: ok, but I cant even go to a local heating supplier and buy parts for my heating that the plumbers buy from. I have to go the diy store that sells to the public.
01:40 PM centreline: they wont sell without a account number/company registration
01:41 PM CaptHindsight: i think it's around 200Kg before you need a EU safety approval
01:41 PM CaptHindsight: 20Kg pails have not been a problem
01:42 PM CaptHindsight: Germany has been the most difficult
01:42 PM CaptHindsight: they have returned 1Kg bottles from customs
01:42 PM CaptHindsight: scary liquid
01:44 PM centreline: you want crazy, I can buy 5l of hydrochloric acid from the supermarket still
01:44 PM CaptHindsight: as concrete cleaner?
01:44 PM centreline: no, lots of places sell car/motorcycle batteries dry by mail
01:45 PM CaptHindsight: ah ok
01:45 PM CaptHindsight: that is just liquid battery :)
01:45 PM centreline: its not muretic acid (brick acid), but battery level sulphuric acid
01:45 PM centreline: in the UK, you cant buy over a litre I think it is, and even then only from specialist outlets
01:46 PM CaptHindsight: depends on who makes the rules
01:46 PM centreline: as a home shop monkey, raw materials are my biggest pain...
01:46 PM CaptHindsight: isn't that also why there are no custom cars in France?
01:46 PM centreline: there are custom cars in france, just theyre all pre 1950 :)
01:47 PM CaptHindsight: strict rules about modifications
01:47 PM centreline: or have a type "originale" on the papers
01:47 PM centreline: it used to be that you could declare a vehicle as type originale and after a inspection get on the road
01:47 PM centreline: but that scheme stopped a while back and nothing has yet replaced it
01:48 PM centreline: but now, practical method, buy a used chassis with orignale papers, pay 2000e for a rusty chassis and paperwork, and live hassle free
01:48 PM centreline: or buy a pre 1950's car, because there are no reliable records of the original specifications to compare against
01:49 PM CaptHindsight: can I move there with my car from the USA?
01:49 PM centreline: most of my friends with hotrods have 30's citroens etc
01:49 PM diginet: CaptHindsight: do you think that a linear motor one could build themselves could achieve any reasonable degree of repeatability?
01:49 PM centreline: is it original?
01:50 PM CaptHindsight: centreline: yes, except for the wheels
01:50 PM centreline: then the answer would be yes, after lots of import paperwork
01:50 PM CaptHindsight: diginet: depends on your skills
01:50 PM centreline: there are specialists who will take your vehicle and immatriculate it in France for a fee
01:50 PM CaptHindsight: good to know
01:51 PM diginet: CaptHindsight: the coils seem to be the harder parts
01:51 PM centreline: or roll your sleeves up and deal with the DRIRE direct (I have some experience in this)
01:51 PM diginet: to make
01:51 PM diginet: or rather, design
01:51 PM CaptHindsight: diginet: they are just flat vs round motors
01:52 PM CaptHindsight: you can buy some pretty good magnets now
01:52 PM centreline: or if it is original apart from wheels, the FFVE (french federation of vehicles d'epoch, aka the classic car people) will issue you with a individual type approval certificate for your car only after you supply some evidence that you own it properly etc
01:53 PM centreline: but that door is closed to hotrods of course. Because classic car people and hotrodders dont mix here...
01:54 PM CaptHindsight: can I dress like a cowboy and be anti-social?
01:55 PM centreline: I have a landrover forward control 101FC, it was never sold to civilian buyers, military only truck, and the FFVE issued me with a type approval cert to register it here as a normal vehicle
01:55 PM CaptHindsight: ah Land Cruisers here, tell them I came to pull you guys out of the the mud :)
01:57 PM CaptHindsight: centreline: someone here is rebuilding one of those not far from France
01:57 PM CaptHindsight: miss0r: which model is yours?
01:58 PM centreline: there's loads in the UK, the uk military sold them all to civilians in auctions as they left service and they got road registered.
02:02 PM CaptHindsight: diginet: why build when there are https://www.ebay.com/itm/Parker-Daedal-Linear-Servo-Positioner-MX80L-T04-150mm-travel-Renishaw-1u-Encoder/264647811936 $300
02:04 PM diginet: CaptHindsight: mostly just curious
02:05 PM diginet: and seems difficult to find two matching motors
02:05 PM diginet: which I need for xy
02:05 PM CaptHindsight: diginet: what XY travel do you require and what resolution?
02:06 PM diginet: 1u would be good, and preferably 200+mm but 300 would be nicer
02:06 PM diginet: also it needs to be rated for high temperature
02:06 PM diginet: at least 70C
02:08 PM CaptHindsight: there are two https://www.ebay.com/itm/Parker-MX80L-150mm-Precision-Linear-Servo-Motor-Actuated-Stage-01um-Resolution/254741421027
02:08 PM CaptHindsight: https://www.ebay.com/itm/Parker-MX80L-150mm-Precision-Linear-Servo-Motor-Actuated-Stage-w-Interpolator/114449512696
02:12 PM roycroft: well that was awesome
02:12 PM roycroft: i need to make heaps and heaps of strips of wood that are precisely 0.125" thick and 0.100" thick
02:12 PM roycroft: i was just able to rip some strips oversize on my table saw and thickness them down to exactly 0.100" on my drum sander
02:12 PM roycroft: so it was worth all the time i spent refurbishing it
02:13 PM roycroft: which is good, because i just spent $80 ordering new belts for it
02:13 PM roycroft: almost as much as i paid for the machine
02:18 PM roycroft: the machine's spec is that it can thickness down to 1/8", but lots of folks have problems trying to go that thin
02:19 PM roycroft: all the time i spent leveling the conveyor yesterday has paid off
02:21 PM unterhaus_: I wish the scrappers were still taking steel. I have a cabinet from my mill that I want to get rid of and I don't think the bulk trash people will take it
02:31 PM CaptHindsight: unterhaus_: they still scavenge around here
02:35 PM unterhaus_: we have snooty scavengers, they don't take steel
02:38 PM roycroft: i can still recycle metals here at the scrap yards
02:38 PM roycroft: but in the worst case i can take just about anything to the lane transfer station (county "dump") and they'll handle it
02:39 PM roycroft: they don't pay for metals, but they also don't charge for getting rid of them
02:53 PM CaptHindsight: i just need to clean out steel drums before scrapping
02:54 PM CaptHindsight: everything else disappears if left out over night
02:55 PM roycroft: just leave them out on the curb
02:55 PM roycroft: make a label for each drum that reads "methamphetamine"
02:55 PM roycroft: and slap it on the drums
02:55 PM roycroft: they'll be gone
03:07 PM unterhaus_: someone finally took the steel stuff, maybe I'm wrong
03:09 PM Deejay: gn8
03:11 PM unterhaus_: I need to cut up that cabinet. fortunately it only has 2 sides
03:13 PM unterhaus_: I wonder where the door is
03:16 PM roycroft: ask the keymaster
03:31 PM -!- #linuxcnc mode set to +v by ChanServ
03:36 PM XXCoder: yo
03:37 PM Tom_L: so Mr T, how's Defiance coming along?
03:38 PM andypugh: XXCoder: I want one with CNC tool rotation, for cutting internal gears and splines etc.
03:38 PM XXCoder: so it would be controllable by say a stepper to alter stroke length
03:39 PM andypugh: And, reading about something else I saw a ool mechanism, but decided it was impractical. And then came up with something possibly also impractical
03:39 PM andypugh: For that design I was thinking a worm and a handle to rotate the first yoke.
03:40 PM XXCoder: lol advanced for me. im just cnc machinist ;)
03:40 PM andypugh: I am not saying that I will make it, just that it might work/
03:40 PM Tom_L: why for do you need internal gears?
03:41 PM andypugh: Well, firstly to make a variable stroke slotting machine with a cardan gear inside it :-)
03:41 PM Tom_L: a you just need to find room for a shaper
03:42 PM Tom_L: skunkworks got his all warmed up and working...
03:42 PM andypugh: I have one, but not at my house.
03:42 PM Tom_L: oh
03:42 PM andypugh: (Well, my dad has one, but he won;t be touching it again :-(
03:44 PM JT-Shop: Tom_L, working on the dog paddle
03:44 PM Loetmichel: BAH!, i HATE this Inkjet printer... idle for 2 months, start a print of 12 black text only pages for the wife: not only is it cleaning itself for 194sec (i stopped it!), it also empties ~20% out of all cartridges. AND does ANOTHER 23 sec cleaning run after those 12 pages... **GRMBL**
03:44 PM Tom_L: you learn that in 1st year swim class!!
03:45 PM CaptHindsight: andypugh: so 2.8 supports even more than two motors per axis?
03:45 PM JT-Shop: yes
03:45 PM CaptHindsight: handy info
03:45 PM Tom_L: how are they defined? i was looking yesterday for that
03:46 PM andypugh: With trivkins and the homing sequence. That’s all there is to it.
03:46 PM JT-Shop: multiple joints can be on the same axis
03:46 PM CaptHindsight: https://forum.linuxcnc.org/10-advanced-configuration/40304-howto-control-4-motors-per-z-axis#185924
03:46 PM JT-Shop: pretty cool actually
03:46 PM Tom_L: nice
03:47 PM CaptHindsight: why did I hear that 2.8 supports two motors per axis, when the truth is many more than 2
03:47 PM Tom_L: at least 2
03:47 PM Tom_L: well, at least 1
03:48 PM CaptHindsight: " I don't think there is any limit to the number of joints that can be assigned to an axis, other than the maximum total number of joints available (16)"
03:48 PM JT-Shop: only two more gizmo's to dream up, CAD and build for the Defiance
03:48 PM Tom_L: the thing in that thread looks pretty hefty
03:49 PM CaptHindsight: several cubic meter sand and binder printer
03:49 PM CaptHindsight: a cubic meter of wet sand is ~2000Kg
03:49 PM CaptHindsight: ^^ holds several
03:50 PM CaptHindsight: well yes and no, the base supports the printed sand as the spreader adds the next layer
03:52 PM centreline: andypugh, I often think bad thoughts about putting dro's on my really cute small shaper and a powered rotary axis, but never yet thought about full on variable stroke cnc...
03:53 PM andypugh: In case you don’t know what XXCoder is n about: https://youtu.be/NJUQAUyZrOg
03:54 PM XXCoder: yea. youtube killed off email notification so I setup rss feed. seems youtube have been skipping some video emails
03:54 PM centreline: ah slotter not shaper
03:54 PM XXCoder: and rss feed is nicer
03:54 PM XXCoder: newsflash is nice one for linux
03:55 PM XXCoder: this is way to download all your subs. i dont see a direct way to get there from homepage at all. https://www.youtube.com/subscription_manager
04:03 PM JT-Shop: https://gnipsel.com/images/customers/Foxy/
04:03 PM JT-Shop: Tom_L, working on the magazine atm
04:05 PM Tom_L: gettin there
04:05 PM Tom_L: how will it center the blanks in the lathe?
04:06 PM CaptHindsight: JT-Shop: how old is the spke lathe?
04:06 PM CaptHindsight: spoke even
04:09 PM JT-Shop: they were built between 1875 and 1910
04:10 PM Tom_L: it would be interesting to see in action
04:10 PM XXCoder: yeah
04:14 PM JT-Shop: hmm 1917 not 1910
04:14 PM JT-Shop: I'll take some videos
04:16 PM Tom_L: what's he using them for nowdays?
04:22 PM XXCoder: stokes still im pretty sure
04:22 PM XXCoder: niche market now but still exists
04:22 PM centreline: goodnight all
04:26 PM veegee: goodnight my love <3
04:31 PM CaptHindsight: wow, some close relationships in here
04:38 PM FinboySlick: CaptHindsight: I don't quite get the top couplingi in that picture: https://imgur.com/b4zPwKo
04:38 PM FinboySlick: (coupling)
04:44 PM CaptHindsight: it is being used a s knob to turn by hand since the coupling is bad on one side
04:45 PM roycroft: i need to remove the quill feed on my mil head, but the spring housing doesn't have a not holding it onto the mill head like a drill press does
04:46 PM roycroft: i hope it doesn't turn out to be too interesting getting it removed
04:48 PM roycroft: the quill feed is the loosey-crunchy part, so i really need to remove it so i can see what's going on with it
04:49 PM roycroft: it would be nice to get a power feed for it when i do the cnc conversion
04:49 PM roycroft: but i've not seen anyone do that with an x3 mill
04:49 PM roycroft: maybe it's not that big a deal, but i'd think it would be nice for tapping
04:52 PM CaptHindsight: my new Chinese bearings used to show up crunchy
04:53 PM CaptHindsight: sort of like every compound mitre saw I try at the stores, all the rails are crunchy
04:54 PM Rab: User-lapped, for personalized tolerances.
04:55 PM CaptHindsight: ah so they ship not quite round yet
04:56 PM CaptHindsight: I never checked if they were out of round or just full of dirt
05:05 PM roycroft: the quill feed was not crunchy when i bought the machine
05:06 PM roycroft: there is some grit in the head, and since the quill feed is at the bottom of the head i should imagine that some of that grit got in the feed mechanism
05:06 PM roycroft: the transmission is higher up,and looks pretty clean
05:07 PM roycroft: but now, after seeing the grit, and how rough the casting is on the inside i'm wanting to completely disassemble the head, clean it out really well and reassemble it
05:07 PM roycroft: but i still can't figure out how to get the quill feed off - i'm looking for an exploded diagram now that i can actually see clearly
05:15 PM roycroft: having an 11x17 printer is nice
05:15 PM roycroft: i can blow up the diagram so it's actually easy to read
05:18 PM JT-Shop: XXCoder, they make tool handles on the spoke lathes
05:19 PM XXCoder: nice
05:19 PM JT-Shop: just cut down a post oak a few nice sections I might use to make some bowl blanks
05:19 PM JT-Shop: the one I'm working on makes hammer handles
05:22 PM XXCoder: thought it was just for tiore stokes but i guess it can make any kind of wood product thats essentally made from rod of wood
05:32 PM JT-Shop: the blanks are square or rectangular, the one I'm working on is 1 3/4" x 2" x 13 5/8"
05:35 PM XXCoder: nice
05:45 PM roycroft: so the quill body is totally dry, except for a bit of grease in the rack where it meshes with the quill feed pinion
05:45 PM _unreal: hello
05:45 PM roycroft: it is totally dry, and showing a bit of wear, but not serious wear
05:45 PM roycroft: the thing is, though, there is no lubrication point for it at all
05:46 PM _unreal: pcw_home you live?
05:46 PM roycroft: i looked carefully to see if i've been missing an oil or rease fitting
05:46 PM roycroft: grease
05:46 PM roycroft: but there's nothing there - the only way to lube it is to remove the spindle
05:46 PM roycroft: that doesn't seem right to me
05:46 PM _unreal: so I'm at a point where I need to start start setting up the 7i96
05:50 PM Tom_L: _unreal, you could ask JT how his config works
05:50 PM _unreal: JT-Cave, how does your cnc garden grow
05:51 PM _unreal: heh
05:51 PM _unreal: Tom_L, trying to get my n600 wifi adapter working as well
05:51 PM Tom_L: did you get that pdf i posted on the drive yesterday?
05:51 PM _unreal: yes
05:51 PM _unreal: I believe
05:51 PM Tom_L: shows freq and period for the pulse
05:52 PM _unreal: oh yayay that one yes
05:52 PM _unreal: Tom_L, so I'm trying to get my n600 USB wifi adapter working on this computer
05:52 PM _unreal: its listed in LSUSB
05:52 PM _unreal: I tried loading drivers
05:52 PM _unreal: but I'm ether doing something wrong or I'm over looking something
05:53 PM _unreal: https://askubuntu.com/questions/740227/how-to-install-wifi-netgear-n600-dual-band-wnda3100v3
05:53 PM _unreal: I followed that
05:53 PM _unreal: still no dise
05:53 PM _unreal: dice
05:54 PM _unreal: any help would be great
05:54 PM _unreal: right now I'm using my tablet like a wifi adapter. its connected to the house wifi, and its then sharing via USB
05:54 PM _unreal: on this computer the lcnc compuiter
05:54 PM _unreal: computer
05:57 PM _unreal: everyone must be beating
05:57 PM _unreal: eating
05:58 PM htasta: yeah getting usb wifi dongles to works is a major pain in the arse
05:58 PM htasta: i wasted an entire day trying to get 2 of mine to work
05:58 PM _unreal: typically they just work
05:58 PM htasta: so good luck with that :P
05:59 PM _unreal: well I believe the modules are just not loading
06:00 PM _unreal: ya the module isnt loaded
06:00 PM htasta: on mine it was ust one chip that wasn't supported but it was generically detected so it would show up in dmesg
06:00 PM htasta: but just not working
06:01 PM htasta: I eventually decided that it's just not worth my time and in the future I will checkk if they mainlined the driver before purchase
06:02 PM htasta: they're cheap after all
06:02 PM rs[m]: _unreal: building the driver did work?
06:03 PM _unreal: I just noticed that driver is from 2017, I'm removing and git'ing the updated version
06:04 PM rs[m]: https://github.com/Netgear-A6210-linux-driver/Netgear-A6210
06:04 PM _unreal: ya already doing that
06:06 PM _unreal: compiling heh
06:12 PM JT-Cave: you could use my 7i96 configuration tool...
06:14 PM _unreal: already loaded
06:14 PM _unreal: I just dont know what all of the options are
06:15 PM _unreal: I'm looking to get it baslicly setup so I can get motion at least
06:15 PM _unreal: JT-Cave, I've never operated the 7i96 so I'm new to all of the options.
06:16 PM _unreal: lcnc already sees it, I need to tell it what it is and how it works
06:16 PM _unreal: and whats connected to it
06:17 PM JT-Cave: press F1 on each page for help
06:29 PM _unreal: ARG... lost my connection
06:29 PM Tom_L: but you found it
06:30 PM _unreal: or did i
06:31 PM _unreal: so ya as I was saying even with F1 help there are still t hings it does not describe in much detail.
06:31 PM _unreal: like max linear vol.... I dont know what that is refering to.
06:31 PM Tom_L: linear velocity
06:31 PM _unreal: firmware 5 stepgen 4 step gen again dont know
06:31 PM _unreal: I've never run the motors so I dont know wha they are able to do
06:31 PM Tom_L: you'll have to fiddle with that
06:32 PM _unreal: I dont even know where to start or GU ESS
06:32 PM _unreal: no idea
06:32 PM _unreal: I dont know what the machine will do withthe motors per axis
06:32 PM Tom_L: you could look at mine for some of it
06:32 PM _unreal: I also dont know if they MUST be filled with something hehe
06:32 PM _unreal: that would be cheating
06:32 PM _unreal: hehe
06:32 PM Tom_L: fine. i'll keep it then
06:32 PM _unreal: I heh
06:33 PM _unreal: I dont know what the expected max rpm of my motors is off the top of my head
06:33 PM * JT-Cave heads for dinner
06:33 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/configs/NEW_MILL_SHOP_2.7/
06:33 PM JT-Cave: need to do some research...
06:33 PM Tom_L: MAX_LINEAR_VELOCITY = 3.50
06:33 PM Tom_L: that's where mine is
06:34 PM Tom_L: and i'm not even sure it's right but it's close
06:34 PM Tom_L: MAX_VELOCITY = 5.0
06:34 PM Tom_L: MAX_ACCELERATION = 55.0
06:34 PM Tom_L: it will vary per axis
06:35 PM Tom_L: STEPLEN = 1600
06:35 PM Tom_L: STEPSPACE = 2000
06:35 PM Tom_L: that's your stepper pulse
06:36 PM Tom_L: i'm sure all is explained in the ini docs
06:36 PM _unreal: 3.5? is that inches
06:36 PM Tom_L: no
06:36 PM Tom_L: units per period i believe
06:37 PM Tom_L: http://linuxcnc.org/docs/2.8/html/config/ini-config.html
06:37 PM _unreal: I've never delt with that so I litteraly dont know anything about UPP
06:37 PM Tom_L: at least sit down and read thru that before you get too frustrated
06:37 PM Tom_L: it goes over each ini section
06:37 PM _unreal: ? your supsoed to read before getting frustrated. where is the fun in that
06:37 PM Tom_L: carry on.
06:38 PM _unreal: heh
06:38 PM Tom_L: most of what you want right now is in TRAJ and AXIS or JOINT sections
06:40 PM Tom_L: then the config tool may make more sense
06:41 PM Tom_L: you won't need _all_ the parameters listed
06:42 PM _unreal: ya and I currently know diddly about traj and axis
06:43 PM Tom_L: MAX_LINEAR_VELOCITY = 5.0 - The maximum velocity for any axis or coordinated move, in machine units per second.
06:43 PM Tom_L: for example
06:43 PM _unreal: ahh Trajectory Planner
06:43 PM _unreal: hehe I still dont know what a machine unit per second relates too
06:44 PM _unreal: have not found it in the writing
06:44 PM Tom_L: your units are inch or mm
06:44 PM Tom_L: there is a UNITS setting too
06:44 PM Tom_L: seconds are 1/60th of a min
06:44 PM Tom_L: :)
06:45 PM _unreal: mm
06:45 PM Tom_L: so your numbers will be higher
06:45 PM _unreal: I ASKED you if 3.5 was in inches
06:45 PM Tom_L: on mine?
06:45 PM Tom_L: i had to look it up because it's been so long since i did my config
06:46 PM _unreal: well "max linear 3.5" I would assume is inches. because 3.5mm is NOTHING
06:46 PM _unreal: hehe
06:46 PM _unreal: so then I'm going to safely assume 500mm
06:47 PM Tom_L: you _could_ use mine as somewhat of a template for the axis sections except the stepper driver timing
06:47 PM Tom_L: then convert the units to mm
06:47 PM _unreal: firmware I'm assuming is 5gen
06:47 PM Tom_L: huh?
06:47 PM _unreal: i'm just setting max lin to 500. its a good start
06:47 PM Tom_L: what firmware?
06:47 PM _unreal: 5 step gen
06:47 PM Tom_L: probably
06:47 PM Tom_L: you can interrogate it and see
06:48 PM _unreal: ?
06:48 PM Tom_L: did you install mesaflash?
06:48 PM _unreal: no idea
06:48 PM Tom_L: it probably installed when you installed linuxcnc depending how you installed it
06:48 PM _unreal: who knoes
06:48 PM _unreal: its been to long
06:48 PM Tom_L: see if it runs from a terminal
06:48 PM _unreal: step generators
06:49 PM Tom_L: the card is ethernet?
06:50 PM _unreal: yes
06:50 PM Tom_L: just a sec
06:50 PM _unreal: arg... the documents are saying step gen = max vol. max accel... but its only giving me 0-5
06:50 PM _unreal: so I dont know what it means then
06:50 PM Tom_L: set your units first
06:51 PM _unreal: "board setup" on the machine tab
06:51 PM _unreal: I'm only on the machine tab right now
06:52 PM _unreal: units= metric, angular I cant change it. its set to degree, max linear volocity is set to 500
06:52 PM Tom_L: ok, try this:
06:52 PM _unreal: firmware is setup to 5 step gen
06:52 PM Tom_L: can you start linuxcnc?
06:52 PM _unreal: board setup
06:52 PM _unreal: yes
06:52 PM Tom_L: probably not yet since the config isn't present
06:53 PM _unreal: lot of options which do you want me to choose for starting up LCNC
06:53 PM _unreal: sim.axis.......
06:53 PM Tom_L: i've never seen the tool so i dunno what you're looking at
06:53 PM Tom_L: no that's just a simulation
06:53 PM Tom_L: you want to see your hardware
06:54 PM Tom_L: just a sec
06:55 PM _unreal: then I have no existing my config
06:55 PM _unreal: as I said this is the first time I'm getting any of this setup and working
06:56 PM Tom_L: i know
06:57 PM Tom_L: do you know what ip the board is set to?
06:58 PM Tom_dev: mesaflash --device 7i96 --addr --readhmid
06:58 PM Tom_L: that will show your config
06:58 PM Tom_L: you may need ./mesaflash .......
06:59 PM Tom_L: iirc that ip is the default when you get it
06:59 PM _unreal: says board not found
06:59 PM _unreal: mesaflash --device 7i96 --addr --readhmid
07:00 PM _unreal: oh DUH board not plugged i n
07:01 PM _unreal: so yes I can view that data just fine
07:04 PM Tom_L: so that tells you what the config is
07:04 PM _unreal: default that is
07:05 PM Tom_L: i gotta run for a while
07:06 PM _unreal: I'm just starting to make din
07:08 PM _unreal: msg pcw_home https://kenswu.zzvps.com/Function/Manual/DS_FMD2740C_EN.pdf this is my motor controllers for the 7i96
07:29 PM skunkworks: the default ip is
07:29 PM skunkworks: I usually switch it to the (there is a jumper)
07:31 PM skunkworks: (unless something has changed) ;)
08:11 PM -!- #linuxcnc mode set to +v by ChanServ
08:27 PM roycroft: well yay
08:27 PM roycroft: my quill no longer feels crunchy
08:27 PM roycroft: it is smooth as can be
08:28 PM roycroft: and all that was required was some solvent, grease, way oil, and time
08:28 PM roycroft: no parts necessary
08:28 PM roycroft: the next time i take it apart i'm going to figure out how to lubricate it without disassembling it
08:52 PM JavaBean: liar, by that time you will have forgotten how much fun you had disassembling it this time
09:01 PM CaptHindsight: roycroft: this only means that some other project will now become 10x more complicated
09:12 PM roycroft: sure
09:12 PM roycroft: but it's all forward progress
09:12 PM roycroft: albeit very slow progress upon occasion
09:13 PM JavaBean: "a 1000-mile journey can be done 1step at a time, but sometimes its a good idea to take a day off"
09:17 PM CaptHindsight: "a turd by any other name will still be a turd"
09:17 PM roycroft: caminante, no hay camino, se hace camino al andar
09:19 PM CaptHindsight: Si je pouvais marcher de cette façon, je n'aurais pas besoin de talc