#linuxcnc Logs

Nov 22 2019

#linuxcnc Calendar

01:22 AM _abc_: Is there a #machining channel more relevant than this one?
02:50 AM Deejay: moin
03:45 AM miss0r2: g'day
04:04 AM XXCoder: Rab: those run by air right? spindles
04:04 AM XXCoder: hey
04:21 AM miss0r2: XXCoder: I'm going to take the first cut with the new mill today. Fingers crossed :D
04:21 AM XXCoder: awesome!
04:22 AM miss0r2: Finally got that data transfer stuff working. It was a bit of a nut to crack honnestly
04:22 AM XXCoder: yeah? what was issue?
04:23 AM miss0r2: alot of parameters I had no idea what was :D
04:23 AM miss0r2: all of them, apparently, having to do with the deckel lsv2 protocole for secure(data loss free) transfer
04:23 AM miss0r2: I ended up disregarding LSV2 and using good'ol ascii :D
04:33 AM miss0r2: I just hate making chips just for the sake of making chips - you know? :)
04:34 AM miss0r2: But I need to test it out properly before doing any actual work on it
04:34 AM XXCoder: try squared circle thingy
04:34 AM XXCoder: it uses only little material
04:34 AM miss0r2: ?
04:34 AM XXCoder: it has square, diamond and circle
04:34 AM XXCoder: all sharing 4 points
04:35 AM XXCoder: frop top down, diamond, circle then finally square
04:36 AM * miss0r2 is trying to wrap his head around the concept
04:36 AM XXCoder: basicaly it tests machine
04:36 AM XXCoder: diamond is colleration of both axes
04:37 AM XXCoder: circle is harder test since both axis is constantly changing speed
04:37 AM XXCoder: square is for depth
04:37 AM XXCoder: ALL those should be aligned together, showing that machine isnt drafting
04:38 AM miss0r2: so.. I start making a diamond.. and move down z and make a circle(where the outer diameter hits the diamonds points) and make a square further down in z?
04:38 AM miss0r2: Interresting test.
04:39 AM XXCoder: yeah. square is sloped in z
04:39 AM XXCoder: top left is highest, at shallow depth below circle
04:39 AM XXCoder: bottom right is lowest
04:39 AM XXCoder: its to test constant motion of z
04:40 AM miss0r2: oh...
04:40 AM miss0r2: that would make for an interresting surface in the bottom of the square pocket..
04:41 AM miss0r2: I think I will need some sort of drawing to understand this- I am clealy not getting it
04:41 AM XXCoder: linuxcnc comes with it as example I think
04:41 AM XXCoder: squared circle?
04:42 AM XXCoder: ah!
04:42 AM XXCoder: "cds.nc"
04:42 AM XXCoder: *ngc
04:42 AM miss0r2: This is where I reveal I have no linux cnc handy? :D
04:43 AM XXCoder: you bad boy ;)
04:43 AM XXCoder: LOL I did make video apparently. using my 3axis_tutorial vismach
04:43 AM miss0r2: well... :D the controller I build for the 'old cnc' is not connected to anything :D
04:43 AM XXCoder: https://www.youtube.com/watch?v=jTdDBzkMwVQ
04:44 AM XXCoder: note tool is too short, it will crash lol
04:45 AM XXCoder: dont worry I evenually tilts view
04:46 AM XXCoder: BOOM
04:47 AM miss0r2: Alright... :D I still find it a bit confusing, but manageable now, atleast :)
04:48 AM miss0r2: I should be able to draw that up in mastercam. but the surface in the large square will be interresting to say the least
04:48 AM XXCoder: end result is diamond on circle on square, and diamond should be circle diameter
04:48 AM XXCoder: square should also be circle diameter
04:48 AM XXCoder: erm diamond should be insert of circle, not too sure what its sides length is lol
04:49 AM XXCoder: anyway all 3 shapes share 4 points, like compass north west etc
04:49 AM miss0r2: well, it doesn't realy need to be a diamong, just a square turned 45 degrees
04:50 AM miss0r2: and I suppose there should be some clever way of measuring this to perfection afterwards?
04:51 AM miss0r2: but seriously, though. The surface of the square is going to be strange, unless I do some seriously fine stepovers
04:52 AM XXCoder: yeah im not too sure on that
04:52 AM XXCoder: you could skip square or just make it flat on z if font want to figure that yet
04:54 AM miss0r2: I guess just doing a square, a circle and a diamond and having them fit together should do the trick
04:55 AM XXCoder: theres few stuff to check too
04:56 AM XXCoder: diamond should be perfect square turned 45 degrees
04:56 AM XXCoder: it should have no chatter
04:56 AM Tom_L: morning
04:56 AM miss0r2: indeed
04:56 AM miss0r2: Goodmorning Tom_L
04:56 AM XXCoder: circle tend to have chatter at poles if machine have backlash issues OR issues with steppers changing speed
04:57 AM miss0r2: This is going to be exciting.... as it is build with servos and glass scales
05:00 AM miss0r2: so I have some 75x75mm mild steel on the rack, will see what I can make from that
05:01 AM miss0r2: drawing it.. it hurts my eyes :D
05:02 AM miss0r2: I know I just drew a circle, but theres just no way that is a circle in there :D
05:03 AM miss0r2: https://imgur.com/a/Ps1atCP
05:13 AM jthornton: Tom_L, inside
05:14 AM XXCoder: miss precisey
05:14 AM XXCoder: miss0r2: precisely
05:15 AM miss0r2: I'm adding tools to the mills tool db now. then I will do the cut
06:35 AM miss0r2: XXCoder: Remembering what controller I came from, this is like space age to me! ;D https://imgur.com/a/wY6zTmy
06:36 AM miss0r2: (doing a wiregrid dry run on the code)
06:36 AM XXCoder: crt. hig tech!
06:36 AM XXCoder: :)
06:36 AM XXCoder: touch buttons tho bleh
06:36 AM XXCoder: sure its immune to splashes etc but../
06:37 AM SpeedEvil: https://electrek.co/wp-content/uploads/sites/3/2019/11/Screen-Shot-2019-11-22-at-8.48.16-AM-2.jpg I can't help but think there might be a reason other vendors don't have spikes on their quadbikes.
06:38 AM XXCoder: pointy.
06:38 AM XXCoder: you'll poke your eye out.
06:38 AM SpeedEvil: I'd love to see a nice teardown with angle grinders of the SS truck.
06:38 AM SpeedEvil: And to know what the kerb weight is.
06:38 AM XXCoder: looks kerbal allright
06:39 AM miss0r2: those spikes are for cyclists..
06:40 AM miss0r2: About time someone took up that subject
06:40 AM XXCoder: and mating dance with others of its own kind
06:40 AM miss0r2: XXCoder: I used to have a green on black text console as a controller
06:40 AM miss0r2: so this is a step up the latter :D
06:40 AM XXCoder: indeed
06:41 AM miss0r2: Alright. I am not *ready* to press the execute button... I think
06:41 AM miss0r2: Wish me luck
06:41 AM SpeedEvil: miss0r2: Good luck
06:41 AM XXCoder: done the dry run? also good luck :D
06:45 AM syyl: wow
06:46 AM syyl: its color, miss0r2 :D
06:46 AM syyl: well
06:46 AM syyl: color-ish
06:46 AM syyl: philips?
06:46 AM miss0r2: yeah
06:46 AM XXCoder: well green text console is in color
06:46 AM syyl: 432?
06:46 AM miss0r2: Its running right now
06:46 AM XXCoder: like ford says, any color as long as its black ;)
06:46 AM miss0r2: pffft... 432 is so last year
06:46 AM miss0r2: this is a 532 :D
06:46 AM syyl: lol
06:46 AM syyl: :D
06:47 AM syyl: it has backplot
06:47 AM XXCoder: hows its cutting?
06:47 AM syyl: which is worth a lot
06:47 AM miss0r2: it is cutting alright :)
06:47 AM syyl: can it do actuall cut-simulation?
06:47 AM miss0r2: But I feel like theres an issue at the moment
06:47 AM miss0r2: yeah
06:47 AM syyl: cool!
06:47 AM syyl: that was highend at the time then
06:48 AM miss0r2: I might be imagining things, but it somewhat feels/sounds like when interpolating theres a jagged sound/movement...
06:48 AM miss0r2: I need to look into that. also, the surface will tell the story afterwards
06:48 AM syyl: like a helical interpolation?
06:48 AM syyl: where did the code come from?
06:48 AM XXCoder: cam?
06:48 AM miss0r2: this is just two axis - no round yet :D
06:49 AM syyl: oh
06:49 AM miss0r2: (is it still called interpolate without the circle involved? :D)
06:49 AM syyl: oh you mean ramping down?
06:49 AM syyl: linear
06:49 AM SpeedEvil: miss0r2: So have you done more than just plug it in and wipe it off? (hopefully not in that order)
06:49 AM miss0r2: anyway, it is generated with mastercam, but it uses a buildin function for helical interpolation
06:50 AM miss0r2: SpeedEvil: Basically no :)
06:51 AM miss0r2: by wiping off: replacing all oil, purging the lubrication system, replacement of oil pump, re grinding the spindle taper... oh, replacing the memory battery. But other than that - no
06:51 AM miss0r2: by oil pump I mean coolant pump
06:51 AM syyl: lol
06:51 AM syyl: thats a minor rebuild
06:51 AM XXCoder: how the heck do you regrind taper
06:51 AM miss0r2: XXCoder: With a grinder? :)
06:51 AM syyl: do they call you captain obvious? :D
06:52 AM miss0r2: not yet - but I am working on it
06:52 AM syyl: :D
06:52 AM XXCoder: I mean, inside cone? how :P
06:52 AM syyl: ground the taper on the machine?
06:52 AM syyl: thats reasonable "easy" to do ;)
06:53 AM miss0r2: XXCoder: Usualy I do one of two things; either I trust the machine enough to do the taper movement with two axis at the same time or I ajust the head to the correct angle and just move it up and down in Z, while I grind it
06:53 AM XXCoder: grinder is whole cone shaped?
06:53 AM miss0r2: yeah, its quite easy while it is on the machine. It takes a little more work on spindles on the bench
06:53 AM SpeedEvil: Was it dinged up?
06:53 AM syyl: a friend has a nifty setup for grinding spindles on the bench
06:54 AM syyl: large granite plate with two linear rails on it - to mount the grinding spindle
06:54 AM miss0r2: XXCoder: Well.. the stone is tapered at the same angle as the cone. but it is smaller. i.e. single point of contact
06:54 AM miss0r2: syyl: Sounds alot like my setup
06:54 AM syyl: and a x/y table that can be rotated that holds the spindle to be ground
06:54 AM XXCoder: ah
06:54 AM XXCoder: so uyou move it in and out while touching one line on spindle inside
06:55 AM syyl: he does hsk and iso taper spindles with that
06:55 AM XXCoder: so it can be nice and even, no ripples
06:55 AM miss0r2: SpeedEvil: Yeah, it had a little in there. Nothing major, but it caused the spindle to runout around 0.007mm
06:55 AM miss0r2: and as I was already doing stuff to it, I figured why not :)
06:56 AM syyl: 0,007 is suprisingly bad for a spindle in one of those machines
06:56 AM syyl: stock they should be close to 0
06:56 AM SpeedEvil: mm?
06:56 AM XXCoder: am I right?
06:56 AM syyl: oh, misread, you just had some damage to the taper, not complete runout, like from a crashed bearing
06:57 AM XXCoder: or chips between tool holder and taper
06:57 AM miss0r2: syyl: Now I can't measure any runout at all.. I can hardly tell any movement on a 0.001 dial
06:57 AM syyl: <3
06:57 AM XXCoder: that is good
06:57 AM syyl: nice!
06:58 AM miss0r2: so the bearings are good. and it sounds nice while running at the moment
06:58 AM syyl: winner :D
06:58 AM miss0r2: (running in the background=
06:58 AM miss0r2: )*
06:58 AM syyl: i cant even her it!
06:58 AM syyl: *hear
06:58 AM syyl: but i can hear that darn cnc router in my basement scream along
06:58 AM syyl: haha
06:58 AM miss0r2: exactly my point! :D
06:59 AM miss0r2: get yourself a proper cnc mill... and skip on that router setup.
06:59 AM miss0r2: Speaking of you getting a cnc, I might have one laying around :D
06:59 AM syyl: i am happy with the two routers, they match my work very well
06:59 AM syyl: and at some point i will probably just buy a haas minimill
07:00 AM syyl: or a TM, or a officemill
07:00 AM syyl: depending on the type of work i get in most
07:00 AM XXCoder: fuck officemill
07:00 AM miss0r2: haha
07:01 AM XXCoder: if you get one, do not spray chips on table sides coverings
07:01 AM syyl: do they jam up?
07:01 AM miss0r2: Yeah :D With the size work you do, my old maho will be completely overkill
07:01 AM XXCoder: chips might get inside cast iron column and mess with induction sensor
07:01 AM syyl: uff
07:01 AM XXCoder: result: toolchanger crashes into spindle
07:01 AM syyl: nice
07:01 AM XXCoder: $1000 fix I think
07:01 AM miss0r2: well.. when it fucks up it fucks up proper.. you must give it that
07:01 AM XXCoder: soindle itself got worn and that was $5000 fix
07:01 AM syyl: ouch
07:02 AM miss0r2: lol cheap spindle
07:02 AM XXCoder: we had 2
07:02 AM XXCoder: both got sold off
07:02 AM syyl: :(
07:02 AM syyl: it looks like a nice concept
07:02 AM syyl: proper mini-vmc
07:02 AM XXCoder: its very very very messy too
07:02 AM XXCoder: it have chip drawer you remove and empty
07:02 AM XXCoder: chips all over floor
07:02 AM miss0r2: well. if anybody can make'em run properly, it must be syyl
07:02 AM XXCoder: its messier than much larger machines at work
07:02 AM XXCoder: by factor of 120
07:02 AM XXCoder: erm 10
07:02 AM syyl: well, i will not buy a new machine that is already a shitshow ;)
07:03 AM syyl: :D
07:03 AM syyl: i have a bunch of friends that own the minimill in various forms
07:03 AM XXCoder: a61 cell have 2 bins that leaves mess, and its still smaller mess than om
07:03 AM syyl: and they all are rather happy with it
07:03 AM XXCoder: its fine if you run like one or two parts once a while
07:04 AM XXCoder: its very effectivbe
07:04 AM syyl: mh its a bit expensive for "once in a while"
07:04 AM XXCoder: BUT! get oiling upgrade
07:04 AM XXCoder: or you will destroy stuff evenually
07:04 AM syyl: the oil lubricated spindle?
07:04 AM XXCoder: no, rail etc
07:04 AM syyl: or central lubrication with oil
07:04 AM syyl: ok
07:04 AM XXCoder: yeah its good for prototyping
07:05 AM XXCoder: we was abusing it heavily, making thousands of parts
07:05 AM XXCoder: no wonder utah division went under they was fixing it
07:05 AM miss0r2: woah... Mijour genious(french accent) here place a lead in/lead out on the middle of a flat surface. I can see where it was *BUT* I can't feel it :D
07:05 AM XXCoder: that and general nasty condition of machines
07:05 AM XXCoder: it just dug in?
07:05 AM XXCoder: or ramping in
07:06 AM miss0r2: moved in from the side in a half circle movement
07:06 AM XXCoder: ahh yea
07:07 AM miss0r2: on the old cnc, which had a little slob here'n there I would usualy make it do the lead in/out movement on a corner, so it had time to reposition with the glass scales before starting the cut
07:21 AM miss0r2: program done
07:21 AM XXCoder: so, how is it
07:22 AM miss0r2: well... the tool was worn :D
07:23 AM miss0r2: but all corners line up
07:23 AM XXCoder: no undercut?
07:23 AM miss0r2: I think this would've been easier to determin had I left a little corner radius on the diamond
07:24 AM XXCoder: so whats left is sizes and squareness/circleness
07:26 AM miss0r2: size is a little off, my bet is that the cutter was worn :D
07:26 AM miss0r2: squareness within 0.01mm
07:27 AM miss0r2: roundness within 0.01mm
07:27 AM XXCoder: decent. some tuning and awesome
07:27 AM XXCoder: well congats on your first cut and first squared circle heh
07:28 AM miss0r2: as you can see on the realy jagged edge pushed up by the cutter: https://imgur.com/a/3nrteSK
07:28 AM XXCoder: so far only fix on your squared circle is making diamond be taller
07:28 AM miss0r2: oh?
07:28 AM XXCoder: oh nm
07:29 AM XXCoder: thought you meant it was shallow and harder to measure lol
07:29 AM XXCoder: tired hehj
07:29 AM miss0r2: oh.. you thought the refrence square at the bottom was the diamond?
07:29 AM XXCoder: that is good size. nah its top
07:29 AM miss0r2: I should've made the cornors on the diamond with a bit of round
07:30 AM miss0r2: i.e. the same radius as the circle
07:30 AM miss0r2: it would've made it easier to compare
07:30 AM XXCoder: cool and probably easier to check corner to corner size
07:31 AM XXCoder: your machine seems decent, if that is with bit worn tool
07:31 AM miss0r2: only thing I didn't like about this... well apart from choosing a dull cutter, is the spindle is a bit hotter than I would've liked for such a short run at only 3500rpm
07:32 AM XXCoder: hmm interesting
07:32 AM miss0r2: I'll lube it up some more :D
07:33 AM miss0r2: just in case - it has been sitting idle for quite a while
07:42 AM miss0r2: also; that test was run dry. no cutting fluid
07:43 AM XXCoder: on steel?
07:43 AM miss0r2: because I have yet to install the drain hose... so yeah
07:43 AM miss0r2: yes
07:43 AM XXCoder: cool :)
07:43 AM miss0r2: nice blue chips
07:43 AM XXCoder: or hot? lol
07:43 AM miss0r2: well.. some were only brown
07:43 AM miss0r2: but a damn mess :D
07:43 AM miss0r2: I just got done vacuuming the machine :)
07:44 AM miss0r2: I think I will install the drain hose now.
07:44 AM XXCoder: cut it off, turn around and do a clean up, save it for paperweight ;)
07:44 AM XXCoder: deburred of course
07:45 AM miss0r2: meh :) I think the next run will be a smidge different: I will swap the circle and the diamond
07:45 AM miss0r2: and do a 3d contour and dome off the circle
07:45 AM XXCoder: ah circle in larger diamonb
07:45 AM XXCoder: yeah square was supposed to be z depth test
07:46 AM miss0r2: with the BTR(deckels dripfeed) I can do as large a program as I want
07:46 AM XXCoder: constant ramping
07:46 AM miss0r2: yeah
07:46 AM miss0r2: honnestly, I am not worried abbout the Z-axis on this machine :) they basically never fail.
07:46 AM XXCoder: no worries then :)
07:47 AM miss0r2: They do have a nasty tendency to push through the oil film on the Y-axis. that had me worried. But apparently all is fine
07:48 AM miss0r2: oh; added bonus: unlike the old one, where I had hacked together an acrylic enclosure, I was *NOT* showered with hot chips during this run. So that is excellent :D
07:49 AM XXCoder: yay no microburns
07:49 AM miss0r2: that is now, apparently, reserved for lathe work :D
07:49 AM XXCoder: yay heh
07:52 AM Loetmichel: miss0r2: like this? -> http://www.cyrom.org/palbum/main.php?g2_itemId=14058&g2_imageViewsIndex=1
07:53 AM miss0r2: Loetmichel: Yes, but instead of acrylic, imagine CrMoNi4 at glowing temperatures.. :D
07:53 AM miss0r2: but that *does* look like a fine mess you have going there
07:54 AM Loetmichel: i doubt that C0 would be able to make ANY steel glow ;)
07:54 AM miss0r2: yeah... it would have to put in overtime to make that happen
08:00 AM miss0r2: syyl: I have a propersition for you :) You send me all of your machining jobs & I send you all of my deburring jobs. Its a win/win. Watching your videos One could start to believe you enjoy the deburring part more than the machining part... and I clearly like the machining part more than the deburring part... so ah? :D
08:06 AM miss0r2: I'm out. See you around
08:07 AM XXCoder: later
08:07 AM XXCoder: glad your test run went well.
08:11 AM syyl: lol
08:11 AM syyl: i actually enjoy deburring a lot, miss0r2
08:11 AM syyl: its an artform within itself
08:12 AM syyl: and hey, 60eur/hour are 60eur/hour
08:13 AM syyl: no matter if i run the lathe or deburr.
08:14 AM XXCoder: thats pretty good
08:14 AM syyl: its an ok-hourly rate for manual machining here with some mild 3 axis cnc and benchwork
08:15 AM XXCoder: ah thought it was personal pay
08:15 AM XXCoder: oh nm
08:20 AM methods_: that tesla truck........
08:20 AM methods_: wtf
08:20 AM gregcnc: ugliest thing ever?
08:20 AM methods_: sweet jeebus
08:20 AM methods_: you haven't seen it yet
08:21 AM methods_: i thought it was a joke when i saw it this am
08:21 AM methods_: but nope
08:21 AM gregcnc: i did see it.
08:22 AM gregcnc: delorian?
08:22 AM methods_: gotta keep the poly count down lol
08:24 AM syyl: first tesla that i like
08:24 AM syyl: it looks so much total recall
08:24 AM syyl: and the flat sheetmetal/glas is nice from a manufacturing standpoint
08:24 AM methods_: oh yeah nice and simple for sure
08:25 AM gregcnc: "mustang" Mach E crossover electric is another odd one this week.
08:25 AM methods_: yeah
08:25 AM methods_: mustang grocery getter
08:25 AM jymmmm: Good morning folks
08:26 AM jymmmm: WX was weird yesterday, was 49F all day, but the humidity went from 14% to 79%
08:26 AM methods_: soggy jymmmm
08:28 AM jymmmm: lol, not so much that, but just started feeling colder than it actually was as the RH rose
08:28 AM gregcnc: we had stupid wind
08:29 AM jymmmm: gregcnc: "How stupid was it?"
08:29 AM _abc_: Loetmichel: these 3d printed parts: they came out like that from printing or is the photo done after cleaning with brush etc? http://www.cyrom.org/palbum/main.php?g2_itemId=17595
08:29 AM gregcnc: not terribly, but enough
08:29 AM jymmmm: gregcnc: gotcha
08:29 AM _abc_: Cows flying low stupid
08:29 AM Loetmichel: _abc_: like they came out of the printer
08:29 AM _abc_: Loetmichel: interesting, I never get that clean finish without a wire brush.
08:30 AM gregcnc: frick, oil pan gasket turned into drilling a bolt out yesterday what a pain
08:30 AM Loetmichel: even at WAY to high speed for that bedflinger: https://www.youtube.com/watch?v=aqOiytidZOM
08:32 AM jymmmm: gregcnc: oh that sucks :(
08:32 AM Loetmichel: _abc_: what was even more surprising: the parts threaded into each other no problem
08:33 AM Loetmichel: and i only left 0.2mm clearance between inner and outer thread
08:33 AM jymmmm: So the moral of the story is to take a blowtorch to your oil pan before removing the bolts?
08:35 AM _abc_: Loetmichel: interesting. Something is wrong :)
08:36 AM _abc_: Loetmichel: other: why not use a wooden tool handle to push the hot part... https://www.youtube.com/watch?v=CPOjxOnWYcc
08:36 AM Loetmichel: because i am not THAT heat sensitive?
08:36 AM Loetmichel: and lazy as fu** :-)
08:36 AM _abc_: But you do have an expressive face :) :)
08:37 AM _abc_: ack lazy. Tool was probably within hand's reach.
08:48 AM Loetmichel: uups, opening a 1.2gb irc log file within the irc client: bad idea :-)
08:50 AM gregcnc: she might get burned at the lathe https://www.instagram.com/p/B5KFxc6in0_/
08:51 AM gregcnc: oranges for breakfast? https://media.giphy.com/media/lMCUhLzukf4CD1Cp8k/giphy.gif
08:58 AM Loetmichel: gregcnc. THATS a trick i will use in the future ;)
08:58 AM Loetmichel: neast
08:58 AM Loetmichel: neat
08:59 AM _abc_: gregcnc: do that with a tomato from behind a panel, near your buddy
09:00 AM _abc_: https://youtu.be/3ks_lbtgJSw?t=129 this is insanely dangerous. What inspired this guy? Robot wars?
09:01 AM _abc_: His hand is like 15cm from where he *thinks* the axe head is coming down'
09:01 AM _abc_: On both sides.
09:05 AM Loetmichel: _abc_: the first one is certainly not for the weak of heart.
09:05 AM Loetmichel: the second and third ones are ok thogh (at least IMHO)
09:14 AM _abc_: First one you mean the 1st I linked? That's not at the start of the video, there's another one before it. But the wheel of death thing is super scary.
09:14 AM _abc_: Even if the video is accelerated not at real speed.
09:28 AM gregcnc: there are much older videos like that with even more dangerous setups
09:31 AM gregcnc: https://www.youtube.com/watch?v=2bVAAx3mMKY
09:31 AM gregcnc: https://www.youtube.com/watch?v=qMsObwqD788
09:37 AM _abc_: https://www.youtube.com/watch?v=2YpOZBHwpT8
09:42 AM p0g0: I should find some images of the tools and methods used to harvest tobacco. Whacking away with a sharp blade on a handle, with your other hand on the stalk... all day long. Oh yeah, then you "spike" the stalk on a sharp metal cone stuck on a "tobacco stick" that holds 5-10 plants. More folks stab their wrists than cut their hand or foot.
09:47 AM _abc_: Loetmichel: was that coupler bad from fabrication or was it abused? Looks like work weakened/hardened then cracked? http://www.cyrom.org/palbum/main.php?g2_itemId=14193
10:17 AM Loetmichel: _abc_: half a year of work in a CNC 6040
10:18 AM Loetmichel: replaced all three of them to this style: http://www.cyrom.org/palbum/main.php?g2_itemId=15011&g2_imageViewsIndex=1
10:18 AM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=15014&g2_imageViewsIndex=1
10:19 AM Loetmichel: the new CNC 6040 had the spiral style couplers... not much better, took less than an hour runtime then : http://www.cyrom.org/palbum/main.php?g2_itemId=17580&g2_imageViewsIndex=1
10:19 AM Loetmichel: ... have to order a few more of those claw type couplers
10:20 AM _abc_: Oldham. I made some of those for a small cnc I built a few years ago.
10:20 AM _abc_: I used 2mm steel pins iirc
10:20 AM Loetmichel: isnt oldham those with the 2 slots and a HARD plastic part in the middle that can slide?
10:21 AM _abc_: Afaik all couplers with pins and a part inserted are called Oldham.
10:21 AM Loetmichel: aha
10:21 AM _abc_: My thing was 3 tufnol disks, one on each axle with pins and one in the middle "flower" style with slots for the axles.
10:21 AM _abc_: iirc
10:22 AM Loetmichel: i made a few claw type myself
10:22 AM Loetmichel: with rubber inserts
10:22 AM Loetmichel: its pretty simple
10:22 AM gregcnc: oldham has two slots
10:22 AM _abc_: But not too accurate with rubber. The steel axles work nicely to cancel any play
10:22 AM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=12846
10:22 AM _abc_: gregcnc: so what do you call an Oldham with more than 2?
10:22 AM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=12821
10:22 AM gregcnc: no such thing
10:23 AM gregcnc: lovejoy
10:23 AM _abc_: Loetmichel: yes similar to that but the center piece was also tufnol and instead of claws pins were inserted into the flat ends.
10:24 AM Loetmichel: on a 3Nm stepper motor you lose maybe a tenth of a step in "rubber spring"... nothing to care about on a CNC 6040
10:24 AM _abc_: Loetmichel: yours is a high speed one for the spindle mine was on a threaded rod
10:24 AM Loetmichel: it DOES live a lot longer than the all aluminium ones though
10:24 AM gregcnc: lovejoy had the patent on the design
10:25 AM gregcnc: https://www.lovejoy-inc.com/products/jaw-type-couplings/
10:25 AM _abc_: I see a lot of them on google images
10:25 AM Loetmichel: gregcnc_ so oldham= 2 disks with slots and a middle pice with to ridges 90┬░ to each other, claws on both sides with a rubber "star" = lovejoy?
10:25 AM gregcnc: example
10:25 AM gregcnc: yes
10:26 AM _abc_: "jaw type couplers" are what lovejoy call them
10:26 AM Loetmichel: _abc_: the ones i made myself is for high speed, yes
10:27 AM Loetmichel: but they work pretty well for ballscrew drives, too
10:27 AM Loetmichel: especially with machines that have "chinese tolerances"
10:27 AM gregcnc: most often they are simply called lovejoy
10:27 AM gregcnc: in the US
10:27 AM Loetmichel: btw: seen my new dual CNC 6040 setup?
10:28 AM Loetmichel: https://www.youtube.com/watch?v=lm-kpV2Msn0
10:28 AM Loetmichel: maan those boxes make it nice to work in the shopw
10:28 AM Loetmichel: -w
10:29 AM Loetmichel: not even 1/10 of the swarf flying around, a lot quieter, ... and much better visibility on the machines, too
10:29 AM gregcnc: maybe the pump needs to turn on with the spindle?
10:30 AM Loetmichel: coworker forgot to switch it on when starting the program
10:30 AM Loetmichel: happens
10:30 AM gregcnc: i mean with M3
10:31 AM Loetmichel: not that much of a problem though, even without the pump running the spindle tales roughly 30 min to get noticeably warm
10:31 AM Loetmichel: no pin on the LPT free for that
10:31 AM Loetmichel: i could switch it with the spindle signal though
10:32 AM Loetmichel: but that is "on the list"... not neccessarily anytime soon
10:32 AM Loetmichel: that machine worked like that for 6++years now
10:32 AM Loetmichel: why change it just because the coworker forgot one time?
10:32 AM Loetmichel: its not like the machine would take instant damage :-)
10:33 AM gregcnc: yeah sounds like it doesn't make much heat
10:33 AM Loetmichel: 800W
10:33 AM Loetmichel: max power
10:33 AM Loetmichel: it takes wuite a while to even get to operating temp ;)
10:34 AM Loetmichel: but that box setup is a LOT nicer than before i may say: https://www.youtube.com/watch?v=m7eO5cu-fXg
10:34 AM Loetmichel: ... if you know what i mean ;)
10:35 AM gregcnc: yes, enclosures are nice
10:40 AM net|: http://stk.schodackfs.com/master/ supertuxkart working port for browser
10:59 AM jymmmm: Um,OCD??? https://www.youtube.com/watch?v=GCO0YUp3ZGg
11:05 AM CaptHindsight: https://forum.linuxcnc.org/show-your-stuff/37855-announcement-new-fork-opencn
11:05 AM CaptHindsight: anyone dig into this much yet?
11:06 AM CaptHindsight: https://www.youtube.com/watch?v=U7JCOAdtCOc OpenCN - Software architecture
11:06 AM CaptHindsight: they might have made some improvements to the trajectory planner
11:11 AM drdoc: Loetmichel: I've also seen those couplers called "plum" couplers
11:28 AM JT-Shop: google is such a pain in the ass!!!
11:28 AM roycroft: then don't use any of their crap :)
11:28 AM JT-Shop: I try not to but sometimes you can't get away from them
11:28 AM roycroft: they also steal your data
11:30 AM CaptHindsight: but they leave copies for everyone that pays
11:30 AM CaptHindsight: them
11:31 AM roycroft: if i have to go to google for something i do it in a throw-away vm with tor browser
11:32 AM SpeedEvil: https://www.alibaba.com/product-detail/Electric-Car-Battery-Dismantling-Equipment-Lead_62239068491.html?spm=a2700.7724838.2017115.89.79ce1a5af6qpJ0&s=p
11:32 AM SpeedEvil: oops
11:34 AM gregcnc: new weekend business?
11:44 AM CaptHindsight: JT-Shop: connection issues?
12:12 PM _abc_: SpeedEvil: wrong channel?
12:12 PM SpeedEvil: wrong channel
12:14 PM _abc_: Is there a "semi developed nation" common use sand/cat litter/etc which can be used in lieu of green sand for Al casting at home? Something I don't need a 20kg bag of?
12:14 PM SpeedEvil: https://www.youtube.com/watch?v=pPrPKCIuhKI Machining a taper the quick way
12:22 PM _abc_: SpeedEvil: what nationality is the speaker? Hungarian? Russian?
12:25 PM jymmmm: .
12:26 PM gambakufu: that's finnish
12:39 PM hazzy-m: Do you all know about the virtual PP machine? https://hub.pathpilot.com/
12:55 PM miss0r2: JT-Shop: I think you have some issues with 'yer connection there
12:56 PM jymmmm: miss0r satelite
12:57 PM miss0r2: satelite connection?
12:57 PM miss0r2: or lack of?
12:57 PM miss0r2: :D
12:58 PM jymmmm: miss0r JT-Shop is on satellite interwebs, guess he's having rough weather or something
12:58 PM miss0r2: damn. I thought satellite connection was not something reguŠlar mortals could afford
12:59 PM jymmmm: miss0r It's the ONLY thing he can get, other than (do I dare say it?)... DIAL UP
01:00 PM miss0r2: beh.. glad that time is over (for me anyway) :)
01:00 PM JT-Shop: this pc keeps rebooting all the time now for some reason
01:01 PM miss0r2: so, all of our speculations about shotty satellite connectivety was all for nothing? :D
01:02 PM JT-Shop: yea, if your seeing a lot of me quitting and joining back
01:02 PM miss0r2: its been going on all day
01:30 PM JT-Shop: hmm no reboot just disconnect/reconnect...
01:38 PM miss0r2: - JT-Shop quit (Read error: Connection reset by peer)
01:38 PM miss0r2: - JT-Shop joined
01:38 PM miss0r2: like that all day
01:42 PM JT-Shop2: hmm its only the machine shop pc not all of them
01:46 PM miss0r2: got a cat poking around out there? :■
02:15 PM JT-Shop: I used to have a cat but a feral dog killed it...
02:17 PM CaptHindsight: _abc_: how will you bind the sand?
02:17 PM CaptHindsight: _abc_: there are a few DIY green sand from scratch videos on youtuberey
02:19 PM CaptHindsight: _abc_: accent, was that even in English!?
02:23 PM fjungclaus1 is now known as fjungclaus
02:38 PM * JT-Shop just filled out the Articles of Termination for J&J Automation LLC
02:43 PM CaptHindsight: gregcnc: came across this while you were away, who knew! https://www.youtube.com/watch?v=MGlyBA8TgjE
04:12 PM Deejay: gn8
04:30 PM drdoc: heh
04:30 PM drdoc: looks like this roll of filament is going to make it through the new router beta build
04:30 PM drdoc: with maybe 2 meters to spare
05:00 PM Centreline: hitting pause and hot swapping filament for that "ran out most the way through" color change in the part :)
05:01 PM jymmmm: If anyone cares.... Walmart has fuel injector cleaning service for $20... It's two parts.... 1 goes thru the intake while engine is running, then a bottle goes into a full gas take. Takes about 30 minutes. It was "metered" into the intake (after air filter). Looking at the MSDS it's 85% Kerosene
05:01 PM jymmmm: tank*
05:02 PM jymmmm: errr 89% Kerosene... http://s7d9.scene7.com/is/content/GenuinePartsCompany/2123605pdf?$PDF$
05:11 PM _abc_: The rest may matter or not?
05:12 PM _abc_: Kerosene in a gasoline engine is not such a good idea by itself. Maybe it helps dissolve things which do not dissolve in normal gasoline. Spraying some WD-40 into the air intake for cold start "help" is known to help a little.
05:12 PM jymmmm: Doubtful, just naphata
05:13 PM jymmmm: and I suspect the naphata is just to "thin" the kerosene a bit
05:13 PM _abc_: I had a colleague who sprayed some WD40 into a working infrared electric heater near his legs. The flame ball made him go all the way across the room on his office chair with wheels.
05:14 PM _abc_: Boredom kills.
05:14 PM jymmmm: lol
05:14 PM jymmmm: so does stupidity
05:15 PM * _abc_ nods
05:17 PM _abc_: I think current fuel formulations have so many crappy things in them that just running clean fuel through for a while cleans most things out. Thus kerosene and naphta, pure. jymmmm
05:17 PM Javabean: "death doesn't cure stupidity, but it CAN make it 'not my problem anymore'"
05:18 PM _abc_: Actually the most dangerous stupid are those who do not off themselves the 1st time and survive to try again and again, nar other people.
05:18 PM _abc_: *near
05:19 PM _abc_: The latest threat to limb and life are hybrid cars in the supermarket parking lot, where everyone is "multitasking". They make no sound at all when running on electric and will run you flat like that. Silent death. Been too close to two of them already in the last 3 months.
05:19 PM _abc_: Every time in the parking lot, once in ours, once the supermarket.
05:27 PM jymmmm: Nothing a kick in a fender wouldn't resolve.. that or call the cops wreckless driving
05:38 PM _unreal_: hello
05:38 PM _unreal_: well that was fun, I just finished tearing apart a food saver
05:38 PM _unreal_: one of those vacuum things
05:38 PM _unreal_: got a bunch of really good parts
05:40 PM _unreal_: I'm very intersted to find out what the vacuum sensor does if its just an ON/OFF or if it really is a pressure sensor
05:42 PM jthornton: the Honda Insight sounds like a warp drive when only the electric is on
05:44 PM _unreal_: crap looks like its just a switch
05:44 PM _unreal_: adjustable maybe? but a switch
05:45 PM _unreal_: yep its an adjustable switch
05:46 PM _unreal_: crap
05:46 PM _unreal_: at least its ajustable but still CRAP
06:15 PM _unreal_: yes I achieved over 5min with out a response
06:46 PM jthornton: https://www.youtube.com/watch?v=v5OCL6rL5OY&feature=youtu.be
06:55 PM * Javabean ponders shaking a fist at the rich dude with a massive shop
06:56 PM Tom_L: so jthornton,
06:56 PM Tom_L: how long did it take to clear out a spot to do that?
07:06 PM _unreal_: Javabean, why ya got a beef with me?
07:07 PM Javabean: nah, twas meaning jthornton... did you SEE how much empty space he had in that shop!!!
07:07 PM _unreal_: I also saw he didnt get off the ground much
07:07 PM _unreal_: I have videos of my quads flying 400' up doing flips etc ....'
07:07 PM _unreal_: just nothing uploaded
07:11 PM _unreal_: So I got My big base epoxy coated finally
07:11 PM _unreal_: I have gotten it home. the next step is going to be cleaning off the last of the DUST
07:11 PM _unreal_: and mounting the first rail
07:12 PM _unreal_: err extrusion
07:12 PM _unreal_: Once I have the first one mounted and "aligned" to the edge of the board. I have to do a JIG
07:12 PM _unreal_: and align the second board to the first board
07:12 PM _unreal_: I'm not sure how I want to do that
07:12 PM _unreal_: I
07:13 PM _unreal_: I'm thinking I may just cut a 2x4 to a set size
07:13 PM _unreal_: use a large bar clamp and kind of tighten. after that I'll start to tighten the bolts and walk the board across
07:14 PM _unreal_: it SHOULD "" be more or less exact
07:14 PM _unreal_: any one have any other suggestions as far as how I could/should align the two primary extrusions?
07:15 PM _unreal_: https://drive.google.com/open?id=1adQweaGjSkkFvFvusslkvgVxxnET7f9l
07:15 PM _unreal_: hello?
07:35 PM drdoc: _unreal_: what's up?
07:36 PM drdoc: Centreline: I've done that more than once, but this time it would be tricky. I don't have another spool of PLA
07:41 PM drdoc: _unreal_: when I mounted mine, I tightened each end with the carriage at that end
07:41 PM drdoc: then measure across the corners to square it up
07:41 PM drdoc: rinse, repeat as needed
07:46 PM _unreal_: not much
07:47 PM _unreal_: hum
07:47 PM _unreal_: ya I was tinking something along those lines
07:47 PM _unreal_: :PPPP I just had anchoves with my daughter :)
07:47 PM _unreal_: you know an other one of those good parenting events. come here kid try one of these.
07:48 PM _unreal_: cappers wrapped in anchoives
07:48 PM _unreal_: kappers
07:48 PM _unreal_: :P
07:48 PM _unreal_: not so tasty
07:48 PM _unreal_: fun to watch the little sprout squirm
07:49 PM _unreal_: she had no problems telling me BLAA
08:02 PM net|: "The word neuron, as we understand it today, did not exist before 1891" amazing 120 years of neurons.
08:06 PM Tom_L: morons have been around for decades
08:07 PM jymmmm: Pipe Coil Length Calc https://play.google.com/store/apps/details?id=com.pinjara_imran5290.Pipe_Coil_Length_Cal&hl=en_US
08:30 PM _unreal_: so my small liner rails showed up
08:30 PM _unreal_: LOL they are WAY smaller then I thought they were
08:30 PM _unreal_: lol
08:30 PM _unreal_: like WTF small
08:31 PM Tom_L: kinda wondered about that
08:32 PM Tom_L: iirc i got 15mm
08:32 PM Tom_L: something like that
08:33 PM _unreal_: https://www.amazon.com/gp/product/B07G3D5265/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
08:33 PM _unreal_: tom
08:33 PM _unreal_: they are SOOOOO SMALLL... there cute
08:33 PM Tom_L: oh you mean the rails
08:33 PM Tom_L: i wasn't thinking...
08:33 PM Tom_L: too many channels i guess
08:34 PM Tom_L: i had drag chain on my brain
08:34 PM _unreal_: hehe
08:34 PM Tom_L: sad you got em?
08:36 PM _unreal_: Tom_L, https://drive.google.com/open?id=1cZ9_L71g_mFvrhy5u7mK4MsVR9zXFf98
08:36 PM _unreal_: no
08:38 PM _unreal_: ?
08:47 PM CaptHindsight: _unreal_: those are for making small positioners and similar
08:48 PM CaptHindsight: http://linearmotionblogger.com/H2W-Technologies/495
08:50 PM CaptHindsight: https://www.pi-usa.us/en/products/positioning-stages-linear-rotary-motorized-precision/precision-motorized-linear-stages/l-505-compact-linear-stage-1201910/
08:51 PM Javabean: https://www.reddit.com/r/Damnthatsinteresting/comments/e0816q/this_scoliosis_treatment/
08:53 PM CaptHindsight: wonder if he can jerk hard enough to snap?
08:53 PM CaptHindsight: spine strength
08:59 PM Javabean: looked to me that there were a few "snaps" in there towards the end
09:43 PM flyback: https://www.goldmine-elec-products.com/prodinfo.asp?number=G24203
09:56 PM flyback: https://www.youtube.com/watch?v=akLOCPeKavc
09:56 PM flyback: _unreal_,
10:19 PM fjungclaus1 is now known as fjungclaus