#linuxcnc Logs

Sep 21 2019

#linuxcnc Calendar

01:51 AM miss0r2: XXCoder: Yesterday I made the deal of the year
01:56 AM XXCoder: yeah?
01:56 AM miss0r2: yeah... 2 secs, let me take a photo
01:56 AM miss0r2: https://imgur.com/3bl8gAE
01:56 AM miss0r2: ~130eur :D
01:58 AM miss0r2: Yeah. I bought it from a guy who refurbishes highspeed spindles. He bought a new set because this started to look worn
01:58 AM miss0r2: :)
01:58 AM miss0r2: and the prices he charges, he can't have anything not looking new in the shop
01:59 AM XXCoder: jeez.
01:59 AM miss0r2: yeah
01:59 AM XXCoder: its olviously priced to go out now
01:59 AM miss0r2: only because I know him, and we work together alot
02:00 AM miss0r2: I think he could've gotten 3-4k eur for this set without blinking
02:01 AM miss0r2: now I am off to go look at a, from what i'm told, sizeable reamer collection that is for sale cheap
02:01 AM XXCoder: nice
02:01 AM miss0r2: one hour drive each way - so I hope it is sizeable ;)
02:03 AM XXCoder: whole 2 or 3? ;)
02:03 AM XXCoder: or only one 1" reamer shattered into 100 reamer parts? ;)
02:05 AM miss0r2: We will see :D
02:06 AM XXCoder: i found older cnc project of mine, its wood engraved with "ILY" hand shape plus ILY word
02:06 AM XXCoder: I painted engrave with black 2.0. damn it looks good
02:06 AM miss0r2: sounds nice
02:06 AM XXCoder: yeah
02:06 AM miss0r2: picture or it didn't happen
02:06 AM miss0r2: :D
02:07 AM XXCoder: lol few sec
02:09 AM XXCoder: https://imgur.com/a/EzrABLN
02:10 AM miss0r2: that looks pretty nice yeah!
02:10 AM XXCoder: yeah
02:11 AM miss0r2: how long did that take to engrave?
02:11 AM XXCoder: couple minutes?
02:12 AM miss0r2: at what depth?
02:12 AM XXCoder: varied
02:12 AM miss0r2: ha
02:12 AM XXCoder: it uses v tool lemme get link
02:12 AM miss0r2: so... you ran it with 20k rpm or something crazy like us mortals cannot get? :D
02:12 AM XXCoder: https://www.youtube.com/watch?v=xF8erDoJlsY
02:13 AM XXCoder: it could run much faster im still new on programming side lol
02:13 AM miss0r2: made a nasty noise in the ILY part... :D
02:13 AM miss0r2: machine is not rigid enough for that DOC/size endmill
02:13 AM pink_vampire: XXCoder: did you power on your cnc?
02:14 AM XXCoder: i was definitely nervious, it was programming error, way too deep
02:14 AM XXCoder: pink not for while :(
02:14 AM pink_vampire: it is from 2017
02:14 AM pink_vampire: I need bigger one
02:15 AM miss0r2: bah.. I need to get going. See you around
02:15 AM XXCoder: later :)
02:15 AM XXCoder: glad you liked pic
02:18 AM pink_vampire: BRB
02:30 AM Elmo40: ahh, 03:30.
02:30 AM Elmo40: not a time to be awake...
02:32 AM XXCoder: 3:30 pm? yeah it should be ;)
03:31 AM Deejay: moin
04:17 AM miss0r2: XXCoder: We didn't even come close to eachother price wise
04:19 AM miss0r2: I made an offer, he made a counter offer that was 10x my offer.. So I left :)
05:23 AM jthornton: morning
05:34 AM Deejay: heya
06:03 AM Tom_L: morning
07:32 AM Elmo40: ugh... damn steppers are skipping on the daughters 3D printer. i thought TMC2208s would help.
07:39 AM Elmo40: i'd like to build her machine like my mill... i just might if this issue doesn't get resolved! at the very least get a real driver for the shifting axis.
07:46 AM jthornton: damn tobacco hornworms are back
07:58 AM Elmo40: did they ever leave?
08:24 AM jthornton: haven't seen any for a couple of months and now I've pulled 20 or so off the plants
08:25 AM jthornton: I know they bury up in the soil after they are done eating
08:25 AM jthornton: and oddly enough the tomatoes on the deck have never had them
08:32 AM Loetmichel: hmpf... just looked for new tyres for my BMW... 225/60R15-96W in "all year" are not to find anywhere... so i have to drive the winter tyres until they fail. will not buy new summer AND winter tyres for a car that will probably only live to spring 2020 (when its roadworthy check expires)
08:52 AM gregcnc: oops
09:13 AM Loetmichel: gregcnc: doesent help if that size isnt produced :-)
09:14 AM gregcnc: get a spare wheel/tire set that fits the car, pften quite cheap here
09:14 AM gregcnc: I just put X5 wheel on my honda minivan
09:27 AM gregcnc: When making D bits from annealed rod, do they bend much during hardening?
09:46 AM Elmo40: eBay?
09:46 AM Elmo40: Loetmichel, ^^
09:51 AM Elmo40: i'm printing with a 1.2mm nozzle :-) The extruder is spinning SO FAST!
09:52 AM Elmo40: print is cut from 18Hr to 7Hr. I hope I don't burn out the extruder motor.
09:56 AM Elmo40: looks like her 8mm LMUU bearings were binding on the rod. i loosened the screws and adjusted them a little. seems to be working fine now. i should upgrade her to linear rails
10:21 AM XXCoder: miss0r: drat!
10:53 AM gregcnc: miss0r wow! you didn't mention digital and pistol grip
12:29 PM Wolfmetalfab is now known as Wolf__
12:29 PM X704 is now known as tiwake
12:35 PM elmo40: why is my freenode connection dropping?? my other servers are not so it can't be my internet (i'm on fibre anyways. it rarely drops)
12:36 PM elmo40: i tell ya, printing with a 1.2mm nozzle is something else! almost like warming the filament and simply laying it down. LoL
12:38 PM elmo40: ohh, interesting. just noticed Ultimaker is no longer listing their previous versions. They forward you to github.
12:42 PM elmo40: looks like 4.3 Beta is out. they still haven't done what many have asked... give us a text box to allow us enter the exact rotation angle we want. They have a new feature, though. Select Face to lay on the build plate. Good idea but the items I want to print need a flat top, not bottom. Just give me the input box like Repetier has.
01:27 PM BitEvil is now known as SpeedEvil
02:52 PM kanzure_ is now known as kanzure
03:51 PM _unreal_: nothing like milling something twice
04:07 PM hightower3: even chuck norris once came twice
04:10 PM Deejay: gn8
05:34 PM jthornton: https://youtu.be/r31z6VCv7P8
05:44 PM XXCoder: nice
05:44 PM XXCoder: I want to have probe someday lol
05:46 PM jthornton: I should get one that is repeatable lol
05:48 PM XXCoder: :) well everything is repeatable to certain tol ;)
05:55 PM jthornton: yea, this one I had to take it apart and finish putting it together so I could center the probe...
05:55 PM jthornton: lol print time left 8.5 hours
05:56 PM jthornton: that part ain't that big
05:56 PM XXCoder: man if theres anything that could use time accerator its 3d printer.
05:56 PM XXCoder: thats what your mom said jt ;)
05:56 PM jthornton: my mom said don't take wooden nickles lol
05:56 PM XXCoder: lol
05:57 PM jthornton: she also sang the bean song
05:57 PM gregcnc: different printer?
05:57 PM XXCoder: giant wooden copies of coins sounds like might be fun project
05:57 PM jthornton: me, yes I have an Ender 3 now along with the prusa clone
05:58 PM Tom_L: and your favorite is?
05:58 PM jthornton: the Ender 3
05:58 PM Tom_L: is it a pro?
05:58 PM jthornton: much less putzing around with it
05:58 PM jthornton: no
05:58 PM Tom_L: whatever you get with pro...
05:58 PM jthornton: I think a magnetic print thingy
05:59 PM Tom_L: that's about all i could gather from it
05:59 PM jthornton: https://www.amazon.com/gp/product/B07BR3F9N6
05:59 PM jthornton: that's the one I got
06:00 PM jdh: Purchased 1 time.
06:00 PM jthornton: that and a Rpi3 and you have a nice package
06:00 PM XXCoder: sometimes I wish can use linuxcnc with 3d printers.
06:00 PM XXCoder: but then slicers is all messed up.
06:00 PM Tom_L: rpi3 gets you connectivity?
06:00 PM Tom_L: interweb...
06:00 PM XXCoder: no coord support. only machine coord
06:01 PM jdh: Tom_L: octopi
06:01 PM Tom_L: yes
06:01 PM Tom_L: plural for octopus?
06:01 PM Tom_L: :)
06:01 PM jthornton: octiprint and octipi
06:02 PM jthornton: I use that on the prusa clone now and it prints much better
06:02 PM jdh: the dripfeed seems pretty old school, but seems to work
06:02 PM jthornton: https://github.com/guysoft/OctoPi
06:03 PM jdh: pretty trivial setup also
06:03 PM jthornton: aye
06:03 PM CaptHindsight: XXCoder: what slicing LCNC issues do you have?
06:04 PM XXCoder: huh?
06:04 PM * jthornton puts on his chef hat and fires up the bbq pit
06:04 PM CaptHindsight: XXCoder> but then slicers is all messed up.
06:04 PM XXCoder: oh like slic3r, etc
06:04 PM CaptHindsight: you mentioned the above
06:05 PM XXCoder: in view from machinist. it doesnt use g54 etc
06:06 PM CaptHindsight: XXCoder: well you have to understand how that evolved
06:06 PM XXCoder: i know. i still call it messed up lol
06:07 PM CaptHindsight: a bunch of know-it-alls decided to reinvent the wheel, without understanding what they were doing and what is down the road
06:07 PM CaptHindsight: now they defend it
06:07 PM XXCoder: I hate how stl is standard. it has no curves and arcs!
06:08 PM CaptHindsight: mostly applies to toy electronics anyway
06:08 PM XXCoder: so holes and curves is disorted by fitting strights
06:08 PM XXCoder: moreover, some firmwares g2 g3 is really bunch of g1s hidden in it
06:08 PM CaptHindsight: nobody building production printers used any of it
06:09 PM XXCoder: I keep telling them about linuxcnc true arc programming and guy "invented it" there
06:10 PM CaptHindsight: many are very anti-LCNC
06:11 PM CaptHindsight: anti-PC
06:11 PM XXCoder: quite a bunch have "not invented here" syndome too
06:11 PM CaptHindsight: like they are only are allowed to use a microcontroller as their religion
06:11 PM CaptHindsight: and end up in a corner
06:12 PM CaptHindsight: opps we didn't think of that and run out of cpu cycles
06:12 PM XXCoder: lol this guy had worm gear driven extruder
06:12 PM XXCoder: needed 2500 steps to extrude 1 mm
06:13 PM XXCoder: and wondered why it kept failing
06:13 PM XXCoder: well your 8 bit cpu got overloaded,
06:14 PM CaptHindsight: servo, whats that?
06:14 PM CaptHindsight: well most of the toys just rattle apart anyway
06:15 PM CaptHindsight: how many FDM machines are still around from 5 years ago?
06:15 PM XXCoder: I know of one
06:15 PM CaptHindsight: they build and buy for a bit
06:15 PM XXCoder: but yeah though people tend to stop after a while anyway
06:15 PM XXCoder: pla gets brittle with age and breaks
06:15 PM CaptHindsight: pump out some parts then it's in the closet or basement
06:16 PM CaptHindsight: now that manufacturing has been revolutionized :)
06:19 PM XXCoder: it is, just that people keep misappling it
06:19 PM CaptHindsight: I'm using LCNC for everything
06:20 PM XXCoder: including driving your car?
06:20 PM CaptHindsight: my cat drives me
06:21 PM XXCoder: crazy? ;)
06:26 PM cerna: Hmm, peole are protective of their own. I see no problem with that.
06:28 PM CaptHindsight: yeah, it's a real crisis
06:29 PM gregcnc: boring? https://www.instagram.com/p/B2o8Op3oZR0/
06:30 PM CaptHindsight: gregcnc: i was nearby woodfield yesterday when the news broke...
06:31 PM gregcnc: lol crazy
06:31 PM CaptHindsight: a few hours later i was the Walmart and just minutes before a car drove through the door there as well
06:31 PM gregcnc: in CL?
06:31 PM CaptHindsight: I was worried about where to go next? yes
06:31 PM gregcnc: taking your chances
06:31 PM CaptHindsight: side door / auto center service desk
06:33 PM gregcnc: dang, piles of rain again
06:34 PM CaptHindsight: anything other than hot is fine by me
06:46 PM CaptHindsight: looking for suitable linux boards to use for a car stereo
06:47 PM CaptHindsight: an ARM tablet that uses u-boot and open kerenl source would be handy with USB ports
06:47 PM CaptHindsight: not really happy with the Rpi's
06:57 PM t4nk-freenode: so I've been messing with them there old inkjet printers again.. wanted to test the linear encoder strip on the carriage, so I demolished the encoder straight off ;).. so my whole experiment was over. Then I took the entire printer apart, I replaced the broken encoder with the encoder from the paper feed motor. Then I tried putting the motor, belt, carriage and encoder strip back in place.. this worked
06:57 PM t4nk-freenode: nice story, but now the remarkable thing;
06:58 PM t4nk-freenode: when everything was one whole, I had an h-bridge setup and steered the carriage up and down for equal amounts of time
06:58 PM t4nk-freenode: but now that I've reassembled it myself..
06:59 PM t4nk-freenode: the carriage tends to drift to one end
06:59 PM t4nk-freenode: so with equal amounts of driving the belt.. the carriage now does not stay in the same position
07:00 PM t4nk-freenode: what could do that?
07:06 PM t4nk-freenode: it slowly moves to one end and starts slamming into it ;)
07:07 PM t4nk-freenode: now, if I reverse the leads of the motor to my h-bridge, it still drifts to the same side, but takes a bit longer to do so
07:09 PM t4nk-freenode: was wondering if it was a known mechanical issue, or perhaps my h-bridge is not swithing in the same way anymore
07:09 PM t4nk-freenode: well, nehow, let's see if I can demolish the new encoder too ;)
07:09 PM t4nk-freenode: *sigh*
07:22 PM t4nk-freenode: mmzz
07:23 PM t4nk-freenode: well.. it's almost exactly the same encoder, I'm giving it 3.3v and I think the little pcb it's on has the current limiting resitor on it
07:27 PM t4nk-freenode: it has 4 lines, I'm assuming I got it powered correctly because one of the 2 remaining leads shows +2.2v and 0v when I move it
07:27 PM t4nk-freenode: but the other line seems to stay high all the time
07:27 PM t4nk-freenode: wasn't it supposed to be opposite to the first channel?
07:32 PM CaptHindsight: A bus leaves Seattle going 50 mph and another bus leaves NY going 60 mph, what is the weight of the drivers if the bus only stops once to swap drivers?
07:33 PM CaptHindsight: what should the reader assume and show your work
07:38 PM t4nk-freenode: if there were anything you mighttaseen, youddaseen it?
07:38 PM t4nk-freenode: there are 2 issues,
07:39 PM t4nk-freenode: one; is there any known situation when one is using a dc motor and a belt, and the system is out of balance like I described
07:40 PM t4nk-freenode: and two; linear encoder with 4 leads.. +, - channel a and channel b presumably; did anyone ever come across an encoder where only channel a outputs, and the other channel stays constant
07:45 PM t4nk-freenode: you got any experience with reading encoders, CaptHindsight?
08:03 PM t4nk-freenode: ah well, I guess I could use just the one channel, since I know the direction
08:03 PM t4nk-freenode: logic analyzer shows no movement on the second channel
08:05 PM t4nk-freenode: if anything, just a very slight fluctuation in voltage.. nothing digital at least
08:05 PM t4nk-freenode: 180 pulses per inch
08:06 PM t4nk-freenode: heh, that's funny.. almost the same resolution as my minicnc ;)
08:17 PM t4nk-freenode: https://www.reddit.com/r/AskElectronics/comments/3hkwi3/optical_encoder_signal_only_fluctuating_01v/ this is the same question
08:21 PM _unreal_: finally
08:21 PM _unreal_: just finished putting the computer back together
08:22 PM _unreal_: I was given an envy23 from work. i5 2.8ghz 8gb ram etc... but they cracked the touch screen
08:22 PM _unreal_: lcd is fine
08:23 PM _unreal_: WHAT a bitch to get into the thing. I spent a huge amount of time taking the thing apart. I'll have to again when I get a new touch bezel. after taking the entire thing apart I found that all I needed to do was to open the motherboard cover and pull a wierd looking cable that said TPUSB
08:23 PM _unreal_: touch panel usb heh
08:23 PM _unreal_: strange looking connector
08:24 PM _unreal_: so NOW maybe I can boot the computer and get it to function. before it was going crazy with touch screen touches
08:28 PM _unreal_: t4nk-freenode, generally all opto encoder are quadrature encoders. and all function the same way. "standard" with the 4 wires + - A B http://www.creative-robotics.com/sites/default/files/tutorials/quadraturediagram.gif
08:28 PM _unreal_: +/- = 5v power and ab encoder sequencers
08:29 PM _unreal_: or 1 0, 1 1, 0 1, 0 0
08:30 PM _unreal_: t4nk-freenode, the other option is a magnetic encoder
08:31 PM t4nk-freenode: pffff, it's from a printer unreal..
08:31 PM _unreal_: yes. I assume your looking at a large PLASTIC disk part of the paper feed
08:31 PM _unreal_: and the strip encoder
08:32 PM _unreal_: both are the same encoder just different design. "disk" and "strip" both quadrature
08:33 PM _unreal_: only down fall is that its open and exposed to dust.
08:38 PM _unreal_: As to the computer. and the good news I only got two cuts from the @#$!@#$!@$# glass touch panel
08:38 PM _unreal_: at least is working now
08:38 PM _unreal_: I'm going to set it up with win10 clean setup as a windows realtime and linux realtime. going to setup both controllers on it
09:17 PM elmo40: win10 realtime?
09:17 PM elmo40: where do you get that kernel?
09:18 PM XXCoder: windows embedded version probably
09:18 PM XXCoder: tend to require special licensing?
09:20 PM elmo40: i don't think you can simply buy that from their website.
09:20 PM XXCoder: definitely.
09:20 PM elmo40: usually OE companies use them for embedded devices (Mazak machines use winXP w/ realtime)
09:21 PM elmo40: and you most likely need to purchase 10,000 licenses...
09:23 PM elmo40: although, you can get windows for the raspi
09:24 PM elmo40: i think i read that somewhere...
09:24 PM elmo40: i wonder if they'd use a realtime kernel for that
09:55 PM elmo40: yup. typical windows fashion... 751Mb image file for the raspi!
09:55 PM Tom_L: https://www.intervalzero.com/
09:55 PM Tom_L: 3rd party realtime
09:56 PM elmo40: then again, it is smaller than the 'full' Raspbian distro at 1.2Gb
09:57 PM elmo40: Tom_L, i wonder what that costs
09:57 PM elmo40: all i see is 'click on the partners...'
09:57 PM elmo40: which means $$$
09:57 PM Tom_L: :)
09:58 PM Tom_L: https://www.sybera.com/english/realtime-extension.htm
09:58 PM Tom_L: another one
10:35 PM Rab_ is now known as Rab
10:47 PM CaptHindsight: https://en.wikipedia.org/wiki/INtime
10:48 PM CaptHindsight: The INtime Real Time Operating System (RTOS) family is based on a 32-bit RTOS conceived to run time-critical operations cycle-times as low as 50μs
10:49 PM CaptHindsight: https://en.wikipedia.org/wiki/TenAsys
10:49 PM CaptHindsight: didn't know that mazak was so lazy, oh wait i did
10:50 PM CaptHindsight: crappy electronic hardware
10:51 PM Tom_L: mostly conversational aren't they?
10:53 PM Tom_L: certified in 2014
10:53 PM Tom_L: woops wrong channel
11:07 PM CaptHindsight: http://www.on-time.com/rtos-32.htm
11:08 PM Lcvette: Tom_L: hahaha
11:12 PM CaptHindsight: http://www.on-time.com/rtkernel-dos.htm
11:13 PM CaptHindsight: Task-switch time of about 6 microseconds (33 Mhz 486)
11:13 PM Lcvette: rtkernel for windows?