#linuxcnc Logs

Apr 27 2021

#linuxcnc Calendar

12:00 AM ronox: now tho if i wanted to put a motor on a bike its easier to just use a BLDC and a fancy big li-ion pack
12:08 AM veegee: I'm only 30, so it's not like cheeseburgers were $0.25 like they were when roycroft was supporting his entire tuition, rent, and spare change off a gas station job
12:08 AM ronox: the job was meant to turn into an instrumentation technician apprenticeship but after a year that was stopped on account of the fact that they were mislead by the apprentice recruiter and i actually couldnt undergo the apprenticeship
12:08 AM veegee: lucky bastards, that generation
12:09 AM veegee: you can't afford jack shit now even with a high skill job
12:09 AM ronox: im in australia so at least i have a student welfare allowance to cover my rent as long as im studying full-time
12:09 AM veegee: I'm in Canada, so not horrible either
12:10 AM veegee: if I were in the USA, I'd run the fuck out of that shithole
12:10 AM ronox: but it also means im in deep shit if sudenly the university is unable to supply me 3 classes per term
12:10 AM veegee: I feel so bad for people there
12:10 AM XXCoder: im worried that canada is turning into usa
12:10 AM veegee: XXCoder I know right
12:10 AM veegee: Me too
12:10 AM ronox: nah its not likely
12:10 AM ronox: you guys have healthcare
12:10 AM ronox: no way that can change
12:10 AM XXCoder: not me. i live in usa
12:10 AM veegee: Yeah it's not going to get that bad but I don't like the trends I'm starting to see here
12:11 AM ronox: in the US people are just used to not seeing doctors ever
12:11 AM XXCoder: hospitals dont care because they get other countries people due to being best in world
12:11 AM ronox: they dont know you can be healthy and not go bankrupt
12:11 AM ronox: thats true
12:12 AM ronox: it should change soon though
12:12 AM ronox: there used to be a lot of nepotism in business and politics but that doesnt exactly work as well anymore
12:13 AM XXCoder: people with neopolism and racist or sexist views dont realize that by excluding groups, they have less ponental talent pool
12:13 AM ronox: no i meant nepotism
12:13 AM ronox: favoring your family
12:13 AM ronox: or friends
12:13 AM XXCoder: i mispelled that word yes
12:13 AM ronox: ah k
12:14 AM ronox: anywho, im gonna ask my parents for a loan to buy that mill rather than keep saving with my ebay store profits
12:14 AM ronox: it recently occured to me that i have that option
12:15 AM ronox: then once i have a mill ill finally be able to start actually MAKING things i can sell for munnies!
12:15 AM XXCoder: you can even make mill with it
12:15 AM XXCoder: cutting alum is minium for it.
12:15 AM ronox: not as a machinist but, to actually make my own designs
12:16 AM ronox: here ill show you a link, this thing is gonna be insanely hard to make
12:16 AM ronox: https://media.discordapp.net/attachments/496297744592273409/764017607195230218/visualize-settings-2-HQ-250_pass.jpg?width=1160&height=928
12:16 AM XXCoder: that one is awesome indeed
12:17 AM ronox: https://cdn.discordapp.com/attachments/496297744592273409/836467885345210408/unknown.png
12:17 AM ronox: https://media.discordapp.net/attachments/496297744592273409/764017600375947314/battery_highight.JPG?width=1479&height=928
12:17 AM ronox: the edge length is 25cm
12:17 AM ronox: of the pentagonal plates
12:18 AM ronox: its all constrained to fit the special batteries in there
12:18 AM ronox: but it needs to not crumple
12:18 AM veegee: By the way, my project to recycle vacuum pump oil worked
12:18 AM veegee: I took all the water out, filtered it, and it pulls a vacuum even better than before
12:19 AM ronox: it would be epic if i could just build an extruder or mill out those frames, even just from solid plastic
12:19 AM veegee: I'm getting 1.0 Pa absolute pressure rating, down from 1.9 Pa before
12:19 AM ronox: neato
12:19 AM XXCoder: veegee nice! way to save a lot
12:19 AM XXCoder: how do you filter water out anyway
12:19 AM ronox: is it reliable enough to constantly burden it with water vapor?
12:19 AM veegee: XXCoder yeah I was wondering when they said to change oil after every use
12:19 AM veegee: because of the water
12:20 AM veegee: I couldn't believe they throw out $40 of oil every time they do an air conditioning service. I thought it's just an operational cost
12:20 AM veegee: But how you get out water is easy: just boil it
12:20 AM ronox: oh
12:20 AM veegee: BUT, high temperature is not good for oil
12:20 AM ronox: so, vacuum boil?
12:20 AM veegee: So you put it in a vacuum chamber
12:20 AM veegee: Yes, you can boil at room temperature if you want
12:20 AM XXCoder: yep pressure is what decides boil temperate
12:20 AM SpeedEvil is now known as Guest17949
12:27 AM veegee: I have a venturi pump so it doesn't contaminate another vacuum pump
12:27 AM XXCoder: so you get it in low pressure and heat it a little?
12:27 AM veegee: yes
12:27 AM roycroft: pressure + temperature
12:27 AM ronox: if it were me i would have considered freezing it then filtering the ice out
12:27 AM veegee: and with the venturi pump, all that water goes out the exhaust
12:27 AM XXCoder: how much do you lower it anyway
12:27 AM XXCoder: pressure
12:27 AM veegee: the venturi pump goes down to -0.9 bar
12:27 AM XXCoder: its hard for me to visualize bar
12:27 AM XXCoder: whats % of atomsphere pressure?
12:27 AM veegee: 1 bar is ~ 1 atmosphere
12:27 AM ronox: so 15psi
12:27 AM veegee: 1 bar = 1.013 standard atmospheres
12:27 AM veegee: https://www.engineeringtoolbox.com/water-evacuation-pressure-temperature-d_1686.html
12:27 AM ronox: my 3D printer conked out before i could test to see if the frame i designed was even physically possible
12:27 AM ronox: for maximum aesthetics the frame size needs to be exactly what it is
12:29 AM ronox: so, the type of mill that makes these profiles, is there any particular requirements? or is it a standard task?
12:29 AM ronox: aactual accuracy doesnt matter so much as consistency
12:29 AM XXCoder: i saw video that makes 2020 extrusions
12:29 AM XXCoder: die is... interesting
12:30 AM XXCoder: it makes 2020 in 4 sections that fuse later
12:30 AM ronox: annoyingly i cant use a 3D printer because even if i address the size, the print layering is full of faults
12:30 AM ronox: ooh
12:30 AM XXCoder: that depends on what plastics
12:30 AM ronox: probably just pure ABS
12:30 AM ronox: same as lego
12:30 AM ronox: ABS is plenty strong just, not fucking printed
12:30 AM XXCoder: some fuse so strongly that it tears across layers because all equal strength, rather than follow layer
12:31 AM ronox: its incredible how weak 3D printed things are
12:31 AM XXCoder: forgot which plastic tho. hm
12:31 AM XXCoder: nylon? maybe thats one that fuses layers very strongly
12:31 AM ronox: yeah but thats too expensive
12:31 AM ronox: plus id be printing for days just to make one dodecahedron
12:31 AM XXCoder: yeah not really workable. nylon is hard as hell
12:31 AM ronox: and that would require me to install active ventilation
12:32 AM XXCoder: but not expensive
12:32 AM ronox: and modify my printer a bit also
12:32 AM XXCoder: theres nylon 230
12:32 AM XXCoder: it needs 230c
12:32 AM ronox: nylon produces noxious fumes when printing
12:32 AM ronox: thats the bigger concern
12:32 AM XXCoder: hm i thought thats abs and asa
12:32 AM ronox: they do too but those arent exactly toxic
12:33 AM ronox: not on the same order of magnitude as nylon fumes
12:33 AM ronox: ABS is like, open a window toxic, wheras nylon is, dont inhale it, period
12:33 AM ronox: print outside
12:33 AM XXCoder: "According to a 2016 study on emissions from filament material used in 3D printers, ABS and Nylon emit high levels of styrene which is suspected to be a carcinogen. Styrene is known to cause headaches, drowsiness, and fatigue."
12:34 AM ronox: oh is that all
12:34 AM XXCoder: seems though site recommandneclosured, with vent to outside
12:34 AM ronox: well anyway, theres still the time and quality constraints
12:34 AM XXCoder: id go enclosed anyway. nylon is HARD to print
12:35 AM ronox: yeah. id have to use a TINY nozzle printing for over a day per part
12:35 AM XXCoder: in fact, i'd use some heating element for air inside enclosure controlled by PID
12:35 AM ronox: and even then id still have to machine the parts down a little
12:35 AM XXCoder: set it to say 80c, below printer machine parts melt temps, but quite hot
12:35 AM ronox: making an extruder and a cutting tool for the end bits just seems much more reasonable
12:35 AM XXCoder: extruder (shaped extruder leike you want) is there such thing as cad for it?
12:36 AM XXCoder: yeah investment on setup means for rest of making would ve so much easier
12:36 AM XXCoder: you do plan to sell lots of it right?
12:36 AM ronox: again though accuracy isnt a major concern
12:36 AM ronox: and yeah
12:37 AM ronox: plus if i make the extruder, its just a matter of changing the die for different stuff
12:37 AM ronox: might be fun to collect recycled ABS and make actual 2020 extrusions from it haha
12:37 AM XXCoder: im sure you can prototype using cheap alum metal and test extrude final shape
12:37 AM ronox: or something a bit easier
12:37 AM XXCoder: :)
12:37 AM ronox: maybe just not with the hollow shape or hole
12:38 AM ronox: i mean how often do you end up using the actual holes in 2020
12:38 AM XXCoder: nylon may emit a lot more than abs if its considered more dangerous
12:38 AM XXCoder: some do, for tapping and bolt on
12:38 AM XXCoder: you could just drill ends if needed
12:39 AM ronox: its not like it would be viable as a standardized replacement but
12:39 AM ronox: making it from free recycled scrap could be fun
12:39 AM ronox: and a bit profitable
12:39 AM ronox: but mostly just allowing me to freely spam 2020 based frames haha
12:40 AM XXCoder: would be interesting
12:40 AM XXCoder: one lady at reprap 3d printed 2020 to test some stuff
12:42 AM ronox: now im all excited about possibilities
12:43 AM ronox: its a shame though my design cant just be injection moulded
12:43 AM ronox: huh
12:43 AM ronox: or maybe it can
12:43 AM XXCoder: theres a way to yeah
12:44 AM XXCoder: using drill press
12:44 AM ronox: id have to use a press to get it off
12:44 AM ronox: since it would extrude lengthwize
12:44 AM XXCoder: or make it multipart that pulls apart
12:44 AM XXCoder: slower but would work
12:45 AM ronox: https://cdn.discordapp.com/attachments/496297744592273409/836474913949745173/unknown.png
12:45 AM ronox: the shaded rectangle in the middle is the support beam
12:45 AM ronox: how difficult is it to unstick ABS from steel?
12:46 AM ronox: or prevent the sticking in the first place
12:46 AM XXCoder: https://www.ptonline.com/articles/injection-molding-are-your-sprue-or-parts-sticking-here-are-some-solutions
12:46 AM XXCoder: lol
12:47 AM XXCoder: "An operator dug out a stuck rib with lineman pliers and slipped. The cost to repair the scratch on a high-polish mold is about $800. End of discussion. " OW
12:49 AM ronox: oof
12:50 AM ronox: ah well, once i have the mill i can look at my options
12:50 AM XXCoder: from what i see from that article is it desticks off steel fine?
12:50 AM XXCoder: could be wrong.
12:50 AM ronox: the profiles inner hole only matters for as far as the two circuit boards go in
12:50 AM ronox: the
12:51 AM ronox: the things have the shape they do as the culmilative profile of everything
12:52 AM ronox: but actually i think id have room for some pretty heavy compromising if i can mill out an appropriate shape at each end
12:54 AM ronox: OH
12:54 AM ronox: what about making a milling bit to cut the profile of the top bit?
12:54 AM ronox: since its only cutting plastic
12:55 AM ronox: is that feasible at all or would that still require high tensile steel?
12:55 AM ronox: was just thinking back about the video of a routing table i saw
01:08 AM Bleep-CNC: OK... This machine does much better than the last one. Worst case was still <100,000 and that was with an IRC client and F-Engrave plotting on the local display from a remote machine via ssh, a web. browser, an xfce4 terminal and glxgears all running.
01:08 AM ronox: wot
01:08 AM ronox: you put an IRC client on your cnc machine?
01:08 AM Bleep-CNC: I think I traced my missed steps issue to hysteresis in the pancake steppers and I turned the acceleration way down which seems to have helped immensely.
01:09 AM Bleep-CNC: The retainer bars they use to hold in sinks make great holddowns if you have tapped holes in your table. data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wCEAAkGBwgHBgkIBwgKCgkLDRYPDQwMDRsUFRAWIB0iIiAdHx8kKDQsJCYxJx8fLT0tMTU3Ojo6Iys/RD84QzQ5OjcBCgoKDQwNGg8PGjclHyU3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3N//AABEIAH4AfgMBIgACEQEDEQH/xAAbAAEAAgIDAAAAAAAAAAAAAAAABQYEBwECA/
01:10 AM Bleep-CNC: WTH ???
01:10 AM Bleep-CNC: There's the right image link. https://encrypted-tbn3.gstatic.com/shopping?q=tbn:ANd9GcT1GOqizvs0ra6HNmkn282kYGELIV-3RkDeboOFxopIbKuHrEcn
01:10 AM XXCoder: ron it has irc client by default
01:10 AM ronox: ooh
01:11 AM Bleep-CNC: XXCoder: It does? Then WTF did I go through all the hell to string a Cat-5 line to this to make sure I could run IRC via 'ssh -X' . LOL
01:14 AM Bleep-CNC: Or maybe that was a result of the first install not having a network connection during and after install .
01:14 AM XXCoder: lol dunno
01:17 AM Bleep-CNC: And do you have any idea how hard it is to tune a CNC machine when the shop cat decides that "Hey! This thing makes a great throne for me to lounge upon.". LOL
01:19 AM XXCoder: :)
01:19 AM Bleep-CNC: Got the gantry parked ~12" from the front edge of the table so there's room for the keymoard and mouse so she's cuddled right up against the backside of the X. xD
01:25 AM XXCoder: sounds unsafe
01:28 AM Bleep-CNC: Yeah, She knows I wont fire the drives up without picking her up out of the way at which point she'll turn into Kitty-Putty and start purring. LOL
01:29 AM XXCoder: lol
01:37 AM Bleep-CNC: Damn cat follows me around like a dog. But she's worse than a dog because she won't stay on the floor. LOL
01:38 AM Bleep-CNC: Crap. I'm ready to test this again and it's 00:30 which means no noise till in the morning.
01:38 AM XXCoder: aww
01:41 AM Bleep-CNC: XXCoder: Ddi you see where I found out last night that at 15K RPM this router cuts 1/8" steel like butter?
01:41 AM XXCoder: no, but thats awesome
01:41 AM XXCoder: can cut steel you can make lot of stuff
01:41 AM XXCoder: is yours that rusty router that youre fixing or is that someone else
01:42 AM * Bleep-CNC took a nice clean cut in a clamp bar accidentally and it didn't even slow down till the E-Stop was slapped.
01:42 AM XXCoder: ow lol
01:42 AM Bleep-CNC: XXCoder: I'm rebuilding the rusty wreck.
01:43 AM XXCoder: good i remembered right then
01:44 AM Bleep-CNC: Thankfully those sink holddown bars are cheap and easy to get. I paid $1 for a half dozen more and some other hardware at Habitat today.
01:46 AM XXCoder: not bad
01:48 AM Bleep-CNC: These things are great for locking stock down, My table has tapped holes so I toss a chunk of scrap under one end and put the other end on the part. The bolts also make it easy to align a piece if you use 2 in the same row/column. https://encrypted-tbn3.gstatic.com/shopping?q=tbn:ANd9GcT1GOqizvs0ra6HNmkn282kYGELIV-3RkDeboOFxopIbKuHrEcn
01:48 AM XXCoder: yeah very cheap too
01:48 AM XXCoder: i have wood holddowns similiar in concept
01:49 AM Bleep-CNC: I've got a bunch of scrap 3/4" cabinet plywood strips from a local shop that I use as straightedges and shims.
01:53 AM Bleep-CNC: You'd be amazed what you can pick up for free if you take a minute to talk to the boss and tell him you want the scrap they were going to throw out for projects. I've got ~200kg of granite slabs in the car I have to unload tomorrow from a countertop place that I'm going to use for bench slabs and paving tiles outside the shop door. LOL
01:54 AM XXCoder: nice and if yiou dare, engraving
01:54 AM XXCoder: you need diamond endmills for that and TOOOOOOOONS water cooling.
01:54 AM XXCoder: part should be literally underwater
01:55 AM Bleep-CNC: With an invitation to bring a truck and come get enough random slabs to pave my driveway if I want it. And it's a long driveway. LOL
01:55 AM XXCoder: nice you got quite good connections :)
01:55 AM Bleep-CNC: XXCoder: Yeah, flood cooling with a sump and pump.
01:55 AM XXCoder: and pond for rock
01:56 AM XXCoder: with slow cuts it shouldnt heat enough to crack
01:57 AM Bleep-CNC: XXCoder: You can get away with flooding the top and using clay to make dams to keep it contained to one area and drining back to the sump.
01:57 AM XXCoder: nice
01:58 AM Bleep-CNC: Done that one before. I've cut so much marble/granite/quartz over the years that I could pave 1/2 of Santa Fe.
01:59 AM XXCoder: LOL
01:59 AM XXCoder: i never did one, saw videos on some of em
01:59 AM XXCoder: i want to try :)
02:00 AM Bleep-CNC: I made one of the fab engineers at Intel in Rio Rancho cringe one day when I joked that I had a geode I'd love to run through their wafer slabbing saw. LOL
02:01 AM XXCoder: :)
02:23 AM drdoc: morning
02:23 AM XXCoder: yo
02:27 AM drdoc: man, y'all been awfully chatty today
02:35 AM XXCoder: we was chatty but topic was done lol
02:35 AM XXCoder: talking about cnc cutting rocks
02:35 AM drdoc: I got into the Baldor's base with a good flashlight and sussed out the wire numbers. It's wired for 120
02:35 AM drdoc: I have a few cabochons I cut from raw stock, 25-30 years ago
02:35 AM drdoc: used to make silver jewelry
02:35 AM XXCoder: baldor's gate lol
02:35 AM drdoc: lol
02:35 AM XXCoder: we recently found old game book today
02:35 AM XXCoder: cool tho :)
02:35 AM captain_morgan8 is now known as captain_morgan
02:36 AM drdoc: XXCoder: that's the backward kind of stubborn, to me
02:37 AM XXCoder: lol
02:37 AM XXCoder: me, im trying to fgure how to learn electrics
02:37 AM XXCoder: for example
02:37 AM XXCoder: i want to make "working" or "hero prop" tricoder
02:38 AM XXCoder: but i suck on electrics :( i can make case due to 3d printer bit..
02:38 AM XXCoder: *but
02:38 AM drdoc: I'm stubborn too, but given a choice between drilling 6 cups an hour while I stand there and one per hour while I read a book and glance over there once in a while, there's no contest
02:39 AM XXCoder: :)
02:39 AM drdoc: I used to teach UNIX admin courses
02:39 AM XXCoder: nice
02:40 AM XXCoder: teacher i dont mind doing that but much learning to start career lol
02:41 AM drdoc: I's tell my students "UNIX is a lazy man's best friend. If I have a task that takes 45 minutes, but I have to do it more than twice, I'll spend an hour writing the script, 45 minutes testing, 20-60 minutes fixing it, and another hour documenting
02:41 AM drdoc: then every time that task needs to happen,I get a 2-hour lunch
02:42 AM XXCoder: lol
02:42 AM drdoc: the best thing about automation, though, isn't the time saved
02:42 AM drdoc: it's repeatability
02:44 AM drdoc: I waste a couple of plates and some time working out the right "automated" feed rate for the core drill, my results are then repeatable
02:45 AM drdoc: it made that girlfriend crazy
02:45 AM drdoc: "Don't you ever just DO IT????"
02:47 AM drdoc: XXCoder: you know there have to be schematics for a prop tricorder somewhere online
02:47 AM XXCoder: it is
02:47 AM XXCoder: but i suck
02:47 AM XXCoder: lol
02:49 AM drdoc: heh
03:02 AM Bleep-CNC: There's a full 3D drawing in the old Starfleet Tech manual from the 70s and you could fit all the prop electronics in teh flipover head if you used an ESP32 and an LCD display.
03:03 AM XXCoder: bleep for classic tos, i want to use watch display and square one
03:03 AM Bleep-CNC: Grab NFC chips and 3D print cases for them to match the round data slugs they used.
03:03 AM XXCoder: but no idea how to wire and use em lol
03:03 AM XXCoder: i also want TNG one
03:06 AM Bleep-CNC: I want one with a 100W pulsed laser that can do spectrographic analysis. Scerw whether it looks like it fell off a Trekkie's trophy wall. LOL
03:06 AM XXCoder: lol
03:07 AM Bleep-CNC: XXCoder: You laugh, but the tech is available now.
03:07 AM XXCoder: i know
03:07 AM XXCoder: i sure arent slinging 100w laser with me while walking around :)
03:09 AM Bleep-CNC: 100W peak pulse. 1W or less for the actual emitter.
03:10 AM Bleep-CNC: You overdrive the hell out of it for a few picoseconds and then give it a long cooloff period so it survives.
03:32 AM Deejay: moin
04:15 AM Tom_itx: morning
04:16 AM Tom_itx is now known as Tom_L
04:42 AM unterhaus_: people that make youtubes about their neat inventions should show them working instead of immediately showing themselves grinding metal
04:42 AM unterhaus_: ^show them working at the start of the video
05:33 AM JT-Cave: morning
05:34 AM XXCoder: yo
10:35 AM -!- #linuxcnc mode set to +v by ChanServ
12:50 PM CaptHindsight: looks like some graphics acceleration is now supported in Linux for the BBB
01:28 PM veegee: Is there a convention for deciding whether a fitting should be JIC female or male on the hose end vs another part?
01:29 PM veegee: Like for pneumatic systems, the hose end is always the female quick coupler since the hose is pressurized, and the tool has the simple male plug
01:30 PM veegee: Right now I'm sticking with JICM on the hydraulic motors and cylinders and keeping the hoses JICF on both ends
01:36 PM CaptHindsight: hydraulic hose fitting sex
01:50 PM aaroncnc: what us the min Pulse per rev encoder one would want to use for spindle sync and also pid feedback? my current 300pr is maxing my setup out.at 1680 rpm
01:53 PM CaptHindsight: 300 x 1680 = 504,000/minute = 8400/sec
01:54 PM aaroncnc: this would be a rough formula to know if i am going to fast for a thread
01:54 PM aaroncnc: 1680(spindle speed)*300(pulse per rev) * 4(for quadrature) /60(seconds) = 33,600 / 33.6KHz
01:57 PM CaptHindsight: software or hardware counter?
01:57 PM CaptHindsight: http://linuxcnc.org/docs/html/man/man9/encoder.9.html
01:58 PM CaptHindsight: how are you reading the encoders? What is your hardware setup?
01:59 PM CaptHindsight: LPT and BOB? https://www.forum.linuxcnc.org/38-general-linuxcnc-questions/34569-lathe-spindle-encoder-with-cheap-max-50-lpt-breakeout-board
01:59 PM aaroncnc: software running on a lpc1768 chip talking to linuxcnc running on a RPI4 via SPI
02:00 PM aaroncnc: it runs at 40mhz
02:01 PM CaptHindsight: not sure what the thread rate is on Remora is yet
02:01 PM aaroncnc: 40mhz
02:01 PM CaptHindsight: 40MHz is what the core clock speed of the LPC1768?
02:02 PM CaptHindsight: I haven't run it yet since I always avoided the poopieboard
02:03 PM CaptHindsight: and boards are hard to come by now and the LPC1768 has 6-12month lead time
02:04 PM CaptHindsight: not sure if you have reached a hardware or software limit
02:04 PM aaroncnc: from the creator "The Remora encoder software module runs in the base thread at 40kHz." was worng on the speed
02:05 PM aaroncnc: if we put that aside tho, whats the min encoder resolution one could use for both spindle sync and pid feedback?
02:05 PM CaptHindsight: that is bad, the Rpi has latency jitter in the 70uS range min
02:05 PM CaptHindsight: 40Khz is 25uS
02:06 PM pcw_home: You would need say 50-60 KHz to capture a 33 KHz count rate in quadrature
02:06 PM CaptHindsight: Remora is still in Beta
02:07 PM CaptHindsight: does remora count on using a fast 10-20Khz thread? That is odd
02:08 PM pcw_home: (33 KHz would work if the quadrature was perfect but it never is)
02:08 PM CaptHindsight: 40Khz thread on an Rpi won't be stable
02:09 PM pcw_home: On the other hand how fast do you need spindle sync?
02:09 PM pcw_home: the remora doesn't use a LinuxCNC base thread, just a 1 KHz servo thread
02:10 PM CaptHindsight: good
02:10 PM aaroncnc: not just for spindle sync but also to have pid feedback
02:11 PM pcw_home: often PID is a waste of time on spindles
02:11 PM CaptHindsight: not sure how fast the smoothie HW can capture an encoder signal, also depends on if a smoothie or clone
02:11 PM pcw_home: unless you need orient or some such
02:11 PM aaroncnc: the chip has a hardware QEM but its not being put to use yet
02:12 PM aaroncnc: also the spec sheet on the QEM has little info on it max ability's that i could find
02:13 PM pcw_home: Why do you need PID for the spindle?
02:14 PM aaroncnc: To keep speed under load.
02:14 PM pcw_home: normally +-10% or so spindle speed is dont-care
02:14 PM CaptHindsight: https://raw.githubusercontent.com/Smoothieware/Smoothieboard/master/smoothieboard-5driver-schematic.pdf
02:16 PM aaroncnc: Is there a min encoder res for spindle sync?
02:17 PM CaptHindsight: 1
02:17 PM CaptHindsight: but you probably want more that that
02:17 PM CaptHindsight: than that
02:17 PM pcw_home: 1 PPR is usable with lathes (with heavy spindle and stiff drive)
02:18 PM CaptHindsight: I don't see anything between the LPC1769 pins and the encoder inputs
02:18 PM CaptHindsight: do you know what pins the encoders connect to in your setup?
02:18 PM pcw_home: probably 25PPR (100 counts/rev) or so is close to minimum for tapping
02:19 PM aaroncnc: https://www.nxp.com/docs/en/data-sheet/LPC1769_68_67_66_65_64_63.pdf page 34
02:19 PM pcw_home: but a bit crunchy
02:20 PM CaptHindsight: I don't see any protection or isolation for those lines!
02:21 PM aaroncnc: correct they are broken out raw to EXP1 header
02:21 PM CaptHindsight: figures so if you want to use a smoothie you have to add all the protection with yet another IO board
02:22 PM CaptHindsight: well it was made to make a few $ off glue gun builders
02:23 PM aaroncnc: So with my current hardware to have both spindle sync and a pid feedback i have a few options. 1 get an encoder of around 30-60pr or 2 keep my current 300pr and see if i cant use the index pulse for high speed pid control
02:26 PM pcw_home: the index pulse from the 300 PPR encoder would disappear at the same 1400 or so RPM
02:28 PM pcw_home: (depending on if its as wide as A/B or just 1 count wide)
02:31 PM aaroncnc: is an omron E6B2 https://www.ia.omron.com/product/item/2469/
02:31 PM aaroncnc: So sound like my best option for now would be a lower resolution encoder
02:34 PM pcw_home: OK its index lasts a full quadrature cycle so should be detectable to nearly 6000 RPM
02:36 PM aaroncnc: okay so its possible to make my current hardware work then.
02:38 PM aaroncnc: Also another question you mention isolation, do i need it? and if i wanted to add it i would have to select opto-couplers that are capable of high speed yeah?
02:50 PM pcw_home: isolation is a possibility, but at the minimum I would add a 1K or so series resistor at the inputs to protect against voltage spikes wiping out the input protection diodes
02:51 PM miss0r2 is now known as miss0r
02:55 PM aaroncnc: CaptHindsight you mention that the boards are hard to come by. are you talking about smoothie boards or any of the lpc boards?
03:11 PM unterhaus_: CaptHindsight, there is another open source oxygen concentrator now
03:25 PM rs[m]: aaroncnc: the QEI hardware on the lpc should be good for count rates up into the MHz range, depending on the digital filter
03:25 PM rs[m]: https://www.nxp.com/docs/en/user-guide/UM10360.pdf page 554. there used to be an mbed qeihw module for lpc176x
03:26 PM rs[m]: pins are P1.20 / P1.23 for phases and P1.24 for index
03:30 PM aaroncnc: rs[m] this? https://os.mbed.com/users/hexley/code/QEI_hw/docs/53f8ae2cf502/classQEIHW.html
03:31 PM rs[m]: yes
03:34 PM rs[m]: i used that on OM13085 LPCXpresso boards, but it seems they are out of stock
04:20 PM XXCoder: andypugh: nice video!
04:21 PM andypugh: Thanks
05:05 PM Tom_L: i must have missed that one
05:05 PM JT-Shop: me too
05:06 PM XXCoder: i LOVE rss feed
05:06 PM XXCoder: screw youtube's show videos what they want me to see
05:06 PM XXCoder: i want channels videos,ones i subbed to, all of em!
05:07 PM * Tom_L gives XXCoder a hint: show us the link!
05:08 PM XXCoder: lol a second
05:08 PM XXCoder: https://www.youtube.com/watch?v=4HrH_8pUk3I
05:10 PM JT-Shop: lol
05:10 PM * JT-Shop squares up the end of a 1" x 1 1/2" 11 gauge tubing in the lathe
05:14 PM JT-Shop: I wish I had a tool holder like that on the Samson
05:16 PM Tom_L: i wish i had a lathe like that
05:17 PM JT-Shop: yeah that is much better than my Samson I assume
05:18 PM JT-Shop: https://gnipsel.com/images/samson/
05:19 PM JT-Shop: need an overall photo of the Samson lol
05:19 PM Tom_L: mine is more a toy compared to either one
05:20 PM Tom_L: but it's been useful thru the years
05:21 PM XXCoder: the lathe? or pick and placer?
05:21 PM Tom_L: i'd be happy with my bud's south bend
05:22 PM * JT-Shop heads to the other shop to try and jig up these two parts for welding
05:23 PM gigasu_shida is now known as gigas_cedar
05:38 PM * JT-Shop wonders if the pick an place is in andypugh living room?
05:39 PM XXCoder: or one room is actually pick n place
05:39 PM XXCoder: as in room is machine lol
05:42 PM andypugh: The PnP is my spare bedroom, on a wheeld trollwy that lets it fit under the desk part of a raised bunk bed.
05:42 PM XXCoder: so its a transformer room heh
05:44 PM CaptHindsight: rs[m]: the LPC176x devices have a 6-12 month lead time, smoothie boards are out of stock and the clones are getting harder to find
05:44 PM JT-Shop: cool
05:45 PM CaptHindsight: rs[m]: why I'm looking at other micros to port Remora to
05:46 PM JT-Shop: geez my new battery for the Bluewing finally shipped 6 weeks after I ordered it...
05:59 PM JT-Cave: I've been trying to get a new battery for 3 months now...
06:00 PM _unreal_: JT-Cave, new battery?
06:00 PM _unreal_: bluewing?
06:01 PM _unreal_: what is a bluewing?
06:11 PM colten: oooh guess my mks sbase 1.3 and re-arm are worth money :)
06:12 PM _unreal_: nj?
06:12 PM _unreal_: colten, ?
06:13 PM colten: someone was saying the LPC176X chips are 6-12months out
06:17 PM _unreal_: I have one of those chips sitting in front of me :)
06:17 PM _unreal_: easy way to find them it to order boards with the chip on it
06:18 PM _unreal_: for example I was looking for a certain stm32f103 chip. could not find a source for it. so I just purchased a dirt cheap proto board with the chip on it.
06:18 PM _unreal_: desolder and there it is yet the chip its self digikey, mouser, and so on no one has them.
06:20 PM colten: expensive to purchase a board just to desolder the cpu
06:20 PM colten: but, if you got the tools, why not. can't take the money with you :)
06:20 PM _unreal_: no... it was cheaper and took less time
06:20 PM _unreal_: less time meaning mail
06:21 PM _unreal_: and yes I have the tools
06:21 PM _unreal_: dirt cheap hot air station
06:21 PM _unreal_: I just wish I could find someone who knows stm32 programing
06:21 PM _unreal_: to help get a project done
06:23 PM colten: just got my boards from jlpcb today. glad there is only one 14pin smt on it
06:25 PM colten: little adapter board for a duet to control a laser
06:27 PM XXCoder: yo
06:27 PM XXCoder: been a while
06:28 PM pink_vampire: hello
06:28 PM pink_vampire: yeah it was a while
06:29 PM pink_vampire: how is everyone is doing?
06:29 PM XXCoder: pretty good. im mostly have recovered from vaccine second shot lol
06:29 PM XXCoder: that was nasty lol
06:30 PM colten: side effects?
06:30 PM XXCoder: yeah
06:30 PM XXCoder: my back, already hurting, was hurting 10 times as much
06:30 PM XXCoder: fever, more dizzy than before, barely have energy to move at all
06:30 PM colten: that sucks. I had my first shot over a week ago. just a sore arm for 3 days
06:31 PM XXCoder: it was 2 days sore arm for first one
06:32 PM colten: I won't get my second shot for a few months yet. we're doing the 4 month between shots here
06:32 PM XXCoder: really wonder why
06:32 PM colten: not enough vaccines available
06:32 PM XXCoder: ohh sucks :(
06:32 PM XXCoder: pink hows ya doing?
06:32 PM colten: for some reason canada seems to have a problem
06:35 PM XXCoder: oh boy hope it gets resolved
06:36 PM _unreal_: pink_vampire,
06:36 PM _unreal_: https://photos.google.com/share/AF1QipPqX5FMaiwizwkp5A0lmHpWMVkC32P_WxZ3-6tw3fKjWP90ujEXEVws37aZ8SsFQA?key=LTBIU3F3bHdJUndDUEJPalJzcTFxdGlGSlBUOW53
06:37 PM _unreal_: hay guys I just added two photos with the blue outside covering
06:37 PM pink_vampire: XXCoder: which one you got?
06:37 PM XXCoder: modernia
06:38 PM XXCoder: my bro had pftier one, he got pretty badly hurt on arm on second shot. but not too much besides
06:38 PM XXCoder: my mom had rash on second shot
06:38 PM pink_vampire: _unreal_: your link is not working
06:38 PM _unreal_: ?
06:39 PM _unreal_: https://photos.app.goo.gl/1ejmwQjHGskbBvob9
06:39 PM _unreal_: does that work
06:40 PM _unreal_: pink_vampire, ?
06:40 PM pink_vampire: yes!
06:41 PM pink_vampire: this laser is amazing!
06:41 PM pink_vampire: how did you made the panel?
06:42 PM pink_vampire: also what kind of tube did you got?
06:42 PM pink_vampire: _unreal_:
06:42 PM _unreal_: its LED based not tube
06:43 PM _unreal_: pink_vampire, https://www.amazon.com/gp/product/B08HV57Y5M/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
06:43 PM _unreal_: that is the original
06:43 PM colten: you went all out on that. kinda looks like a k40
06:44 PM _unreal_: DIFFERENT motors. larger bars. whole encosure, I had a custom built case for it
06:44 PM _unreal_: ya but its very light
06:44 PM _unreal_: and portable
06:44 PM _unreal_: I'm not limited on work area
06:44 PM pink_vampire: all that for 3W O_o
06:44 PM colten: my 30w diode isn't as fancy
06:44 PM colten: almost as large as that one though
06:45 PM pink_vampire: I'm curious about the engraved panels
06:45 PM colten: I'm in the middle of building a 50w co2 from Further Fabrication's Y1200 plans
06:46 PM _unreal_: colten, this system is designed for off site use
06:46 PM _unreal_: I work on luxury yachts
06:47 PM pink_vampire: sounds cool!
06:47 PM colten: ahh. yeah co2 might not be good on a yacht
06:47 PM _unreal_: NOPE
06:47 PM XXCoder: nice
06:47 PM colten: do you find your acylic Y plates cracking at all?
06:47 PM _unreal_: nothing like bringing a FIRE/SMOKE producer onto a 20million dollar yacht to put a design on there aft desk TEAK table
06:48 PM XXCoder: i do want to have real cutter type laser machine but eh later
06:48 PM _unreal_: desk=deck
06:48 PM _unreal_: pink_vampire, engraved panels?
06:48 PM _unreal_: which one's
06:48 PM _unreal_: what one's?
06:49 PM pink_vampire: the one with the e-stop
06:49 PM _unreal_: oh I designed that my self and cut it on my cnc machine
06:49 PM _unreal_: why do you want the cad drawing?
06:51 PM pink_vampire: no, but I want to know what material is that and what endmills and feed and speeds did you use?
06:51 PM pink_vampire: I'm working on similar stuff right now
06:52 PM XXCoder: pinj you making a laser machine?
06:52 PM _unreal_: I used a .5mm rasp
06:53 PM _unreal_: the material I'm not sure what it is called off the top of my head
06:53 PM pink_vampire: rasp?
06:53 PM colten: looks like a engraving plastic
06:54 PM colten: dual color plastic
06:55 PM pink_vampire: where did you got it?
06:55 PM _unreal_: https://www.amazon.com/gp/product/B00SMDOUPS/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1
06:55 PM colten: look for rowmark
06:57 PM _unreal_: pink_vampire, I use those for making PCB'S cuttingout the pcb's and miling in material like that desk sign material for putting names/ job tidles etc.. stuff on
06:59 PM t4nk_freenode: wish I could find those on aliexpress
06:59 PM pink_vampire: interesting, I'm surprise it is not get full of molten plastic
07:00 PM _unreal_: I dont mill plastic with those bits
07:00 PM _unreal_: they would snap right away
07:00 PM _unreal_: as long as they dont break from setting the feeds to high. they last and last and last
07:01 PM _unreal_: most of those bits I break are from having material not be level
07:01 PM _unreal_: or I dont Z up high enough and have a strike
07:02 PM _unreal_: doesnt take anything to break them
07:02 PM _unreal_: but DAMN they do a nice endless job of milling
07:30 PM XXCoder: okay wtf "pushing plant based beer"
07:31 PM XXCoder: is there meat based beer? lol
07:33 PM XXCoder: yo
07:34 PM Bleepshop|2: Yo.
07:34 PM * Bleepshop|2 is still chasing missing steps.
07:36 PM Bleepshop|2: F-Engrave is a nice torture test if you try to do text at a 45 degree angle.
07:36 PM XXCoder: not bad
07:38 PM Bleepshop|2: Beats hell out of doing it the slow way and finding out in a week or two that it wants to drop steps on a diagonal move.
07:39 PM XXCoder: you checking power?
07:39 PM XXCoder: while its moving. it may be underpowered so diagonal uses more power and it loses steps
07:39 PM Bleepshop|2: I'm starting to wonder again if my issue isn't this breakout board.
07:40 PM XXCoder: id suggest check power usage first
07:42 PM Bleepshop|2: I'm about to turn the drivers down to 1/2 current and try again. I can't even budge the gantry when it's powered because of the Nema-34 pancakes and the 4:1 reduction to get to the rack.
07:42 PM XXCoder: ok
07:42 PM XXCoder: how is axis setupo anyway, is one axis 2 steppers?
07:43 PM Bleepshop|2: But on the plus side I know it'll cut steel like butter. LOL
07:43 PM XXCoder: indee
07:43 PM Bleepshop|2: X/Y1/Y2/Z
07:44 PM Bleepshop|2: Y1/Y2 are slaved off of one output and the A/B phases are swapped to make it work.
07:44 PM Bleepshop|2: A/B phases on Y2 that is.
07:45 PM XXCoder: hmm ok
07:47 PM Bleepshop|2: A 1/4" 60 degree V cutter at 15K RPM with a cut depth of 0.125"in plywood should be close to no load on the gantry and I've got >0.125" of wander in the 3 lines of text at a 45 angle.
07:49 PM Bleepshop|2: Is there a "Move 1 axis at a time" option for rapids?
07:49 PM XXCoder: dont think so, but that depends on cam
07:50 PM XXCoder: you could make script to turn g0 x... y.... to
07:50 PM XXCoder: g0 x...
07:50 PM XXCoder: g0 y...
07:51 PM Tom_L: there is if you write your post that way
07:52 PM Tom_L: most efficient is a direct path though
07:52 PM Tom_L: (right thru your clamp)
07:53 PM Bleepshop|2: Well, turned the current on the Ys down from 4.20A to 2.40A and I still can't budge the Y with the machine powered.
07:54 PM Tom_L: what size steppers are they?
07:54 PM Bleepshop|2: Tom_L: Been there, done that, using the T-shirt for a shop rag. ;D
07:54 PM Bleepshop|2: Uhh.. Fecking yooge ?
07:58 PM Bleepshop|2: Tom_L: Nema 34 Pacific Scientific, E31NRHT-LNN-NS-00 same as thse. https://www.ebay.com/itm/Pacific-Scientific-1-8-Step-Motor-E31NRHT-LNN-NS-01-/122058397532
07:58 PM Tom_L: expensive buggers
07:59 PM Bleepshop|2: 5A rating, I know at this size the diameter of the stepper has as much to do with the holding power as the amount of current going through them.
08:00 PM Tom_L: mine are 5A rated but i'm running them around 3A i think
08:01 PM Bleepshop|2: Tom_L: Yeah, there's 3 of them on this table, the Nem-23 on the Z was blown so I replaced tt with a 425oz/in.
08:01 PM Tom_L: mine are 570
08:01 PM Tom_L: nema 23
08:01 PM Bleepshop|2: The Z stepper barely gets warm and the X/Ys stay almost dead cold.
08:02 PM Tom_L: yeah
08:02 PM Tom_L: my drivers have idle current shutdown as well
08:03 PM Tom_L: https://www.ebay.com/itm/253223632606?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
08:03 PM Tom_L: those were the biggest nema23 i could find at the time
08:03 PM Bleepshop|2: Had the latency histogram running for a long while earlier while I abused the machine, It took 4 glxgears + all the shit I was running before and never made it outside the 40 ticks.
08:04 PM XXCoder: tom nice! i was wondering on upgrading my cnc router. it was small nema23s
08:04 PM Tom_L: those are arm breakers
08:05 PM Bleepshop|2: I've got teh Long's Motor version of these. https://www.ebay.com/itm/333528349963?_trkparms=ispr%3D1&hash=item4da7d6bd0b:g:OHkAAOSwQ7dgYsvy&amdata=enc%3AAQAFAAACgBaobrjLl8XobRIiIML1V4Imu%252Fn%252BzU5L90Z278x5ickkCrLl8erj3ATP5raQxjc%252F%252B4sjyMQ%252FQxfFqb0eAc4cPKnDQgZpJs69f2wLkh%252BSWC2wyQ5lezQqmrxKTC9h%252FpSa1sIUtJLLXGSC4d6a%252BPzoR%252FfJbYk3%252FaiUFVDNSBxnSvXxEvBbsTdhfnTiv3uz7TwHT4Ui1OV
08:05 PM Tom_L: you can get them in 3/8 or 1/4" shaft but i'd be a little leary of the 1/4" shaft
08:05 PM XXCoder: https://www.ebay.com/itm/333518674103 good?
08:05 PM Tom_L: plenty beefy
08:06 PM Tom_L: i wanted to be sure i could cut steel etc so all my plans were with that in mind
08:06 PM Bleepshop|2: Tom_L: This thing uses a 3-1/2HP Porter Cable router for the cutting head and came with a spare. LOL
08:06 PM Tom_L: lower spindle speed etc
08:06 PM Tom_L: Bleepshop|2, adjustable speed?
08:08 PM Bleepshop|2: 5 speed. 10K, 13K, 16K, 19K, 21K.
08:08 PM Tom_L: so no rigid tapping for you :)
08:08 PM * roycroft used a 7518 motor on his router table for years and years before building the new one and switching to an 80mm spindle
08:08 PM roycroft: that router is a real workhorse
08:08 PM Bleepshop|2: And at 15K with an 1/8" carbide but it goes "Steel? What steel?" ... LOL
08:09 PM Tom_L: i'd think you would just burn the cuter up
08:10 PM Bleepshop|2: I need to find 1/8" and 1/2" collets for it to handle all the bits I have.
08:10 PM Bleepshop|2: It's got a mist cooling system on it for metals.
08:10 PM roycroft: one reason i switched to the 80mm spindle on my new router table is for the er collets
08:11 PM roycroft: i don't think a 1/8" collet was ever made for porter cable routers
08:11 PM roycroft: 1/4", 8mm, and 1/2" are the choices
08:11 PM roycroft: you could use a sleeve for your 1/8" tooling, but eewe
08:11 PM roycroft: eew, rather
08:12 PM Bleepshop|2: I'm using a sleeve for them now and I've got one sleeve that now looks like an expansion anchor. xD
08:13 PM Bleepshop|2 is now known as Bleep-CNC
08:13 PM Bleep-CNC: This is what it has for cooling. https://www.amazon.com/Trico-Micro-Drop-Dispenser-Loc-Line-Reservoir/dp/B00AQO762K
08:16 PM Bleep-CNC: People in this town throw out ridiculous amounts of shit after 1 part fails and they're too lazy to try and fix it or the shop has sold them a new one as the repais cost more than whatever if was did new.
08:17 PM Bleep-CNC: Or they're idiots... Mainly they're just idiots... LMAO
08:49 PM -!- #linuxcnc mode set to +v by ChanServ
08:51 PM * Bleep-CNC just got annoyed at not being able to see the cutter and designed an open face brushless shoe for the router.
08:56 PM roycroft: an entire generation, arguably two generations, have been raised to replace, not repair
08:56 PM roycroft: that does not make them all idiots
08:58 PM Tom_L: i'm of the repair generation
08:58 PM Bleep-CNC: I figure this is the worst case for this machine. Browsser open, IRC client over ssh displayed and I'm running an engrave pass on it as well at the moment.
08:58 PM roycroft: i am as well
08:58 PM Tom_L: Bleep-CNC, why not just treat it line any other machine tool and use the control to control the machine
08:59 PM roycroft: things used to be easier to repair
08:59 PM Bleep-CNC: But If I can lay a ruler across the lines of text and have them line up I'll be happy.
08:59 PM Tom_L: they are designed to fail now
08:59 PM Bleep-CNC: Tom_L: I'm on the console of the machine at the moment.
09:00 PM Tom_L: i figured as much
09:00 PM -!- #linuxcnc mode set to +v by ChanServ
09:00 PM Tom_L: i run irc on mine but that's about it
09:00 PM Bleep-CNC: Swapping back and forth between watching linuxcnc and typing in here.
09:01 PM Bleep-CNC: I figure if it can survive me doing all this while it's engraving I'll call it good and move on to auto tool length compensation. LOL
09:01 PM -!- #linuxcnc mode set to +v by ChanServ
09:07 PM Tom_L: how do you plan to implement that?
09:09 PM XXCoder: timed out lol
09:09 PM Tom_L: must have overloaded his cnc machine :)
09:11 PM -!- #linuxcnc mode set to +v by ChanServ
09:11 PM XXCoder: maybe
09:14 PM Bleep-CNC: Well. That went swimmingly until the breaker popped and took out everything but the emergency lighting. LOL
09:18 PM * Bleep-CNC moves the CNC power cord from the wall to a direct line to the meter with a 30A breaker.
10:14 PM drdoc: welp.
10:15 PM XXCoder: oopsie
10:15 PM XXCoder: yah when i ran cnc router i had to use seperate plugs for spindle and rest of it
10:15 PM * drdoc is the proud owner of a very crusty 5" Kurt Ang-Lock A50
10:16 PM XXCoder: good vise?
10:16 PM drdoc: it's super stiff, but I think that's mostly petrified coolant and crud.
10:18 PM drdoc: the jaws aren't in fabulous shape but I think a little stoning will get them at least acceptable
10:18 PM Bleep-CNC: Noice.
10:19 PM drdoc: I'm happy. It probably wasn't a steal, but it was a very good buy
10:19 PM XXCoder: not bad
10:19 PM XXCoder: yeah some stoning and it has no outwards bumps
10:19 PM XXCoder: accurate enough
10:19 PM drdoc: yup
10:20 PM drdoc: and jaws aren't hard to come by
10:20 PM XXCoder: csn make that
10:20 PM drdoc: the 4", otoh, I'll have to take apart to see what's what
10:21 PM drdoc: all the way open it's tight; almost closed there's some vertical play
10:21 PM drdoc: makes me worry that the ways are worn
10:21 PM Bleep-CNC: XXCoder: This is a 70' chunk of 8-3 plugged into 220 right under the meter on a dedicated breaker. Usually my welder is plugged into it and the CNC is plugged into the convenience outlet on hte A phase with the shopvac on the B phase at the moment.
10:21 PM XXCoder: looked at movable half steel sphere?
10:22 PM drdoc: haven't even brought it in from the truck yet
10:22 PM XXCoder: ok
10:22 PM Bleep-CNC: drdoc: Slacker! ;D
10:22 PM drdoc: like you wouldn't believe
10:22 PM XXCoder: bleep i wouldnt be even able to lift it
10:22 PM XXCoder: bad is hurting bad
10:23 PM drdoc: I laid down for a minute to cool off about 4:30, woke up 10 minutes ago
10:23 PM Bleep-CNC: XXCoder: That's why I rebuilt/rewired an old power wheelchair into an RC shop tug.
10:23 PM drdoc: very cool
10:23 PM XXCoder: lol nice
10:24 PM drdoc: but you're gonna have to prove it...
10:24 PM drdoc: Pics, or it didn't happen.
10:24 PM Bleep-CNC: 2500lb ATV winch make lifting/dragging easy. LOL
10:25 PM drdoc: I was gonna get that belt grinder spinning today too.
10:25 PM Tom_L: drdoc, what timezone?
10:26 PM drdoc: -6
10:26 PM drdoc: central
10:26 PM Tom_L: cause it's 10:13 here
10:26 PM Tom_L: oh?
10:26 PM Tom_L: where?
10:26 PM XXCoder: 8 pm here
10:26 PM drdoc: Austin TX
10:26 PM drdoc: 15-20 miles from Rab
10:26 PM Tom_L: too damn hot down there
10:26 PM drdoc: dude
10:27 PM drdoc: I used to work a lot in Mesa AZ
10:27 PM Tom_L: i'm sure you're nuts now
10:27 PM XXCoder: i dont want to live at texas. either too hot or no power in freezing weather
10:27 PM drdoc: I left Austin one Sunday it was 88F, got off the plane in Phoenix and it was 112F
10:28 PM drdoc: waaaaay more comfortable in Phoenix
10:29 PM drdoc: Tom_L: I grew up in West Texas, on the panhandle.
10:29 PM drdoc: -15F is common in winter, complete with blizzards
10:29 PM Tom_L: you have a shop or just hobby?
10:29 PM drdoc: 115F is also common in summer, complete with blinding dirt storms
10:30 PM drdoc: just hobby
10:30 PM drdoc: I actually have always done fab & layout - welding and indian-style silversmithing
10:30 PM Tom_L: wtf is it about every texan driving a black truck?
10:30 PM drdoc: idjits
10:31 PM drdoc: seriously, just dumbassery
10:31 PM Tom_L: they're everywhere!
10:31 PM XXCoder: my car is black with black inside
10:31 PM drdoc: I've never owned a dark-colored car
10:31 PM XXCoder: it was good deal
10:31 PM XXCoder: but yeah foil cover on front is a must
10:32 PM drdoc: XXCoder: you could literally poach an egg on it in summer here
10:33 PM * drdoc gazes longingly at his soapbox, sighs
10:33 PM drdoc: Texas was once a really good place to be.
10:33 PM Tom_L: drive like fools but at least they know where they're going
10:34 PM roycroft: are you from lubbock?
10:34 PM * drdoc does a doubletake
10:34 PM Tom_L: he just said Austin
10:34 PM drdoc: but I *am*
10:34 PM roycroft: he said he grew up in the panhandle
10:34 PM drdoc: I also said I grew up on the panhandle
10:34 PM Tom_L: mmm
10:35 PM _unreal_: he grew up panhandling?
10:35 PM XXCoder: drdoc: you can poach egg in my car lol
10:35 PM roycroft: so why are you not a musician?
10:35 PM XXCoder: and thats in spring
10:35 PM Bleepshop: drdoc: https://imgur.com/a/C0mqllo
10:35 PM XXCoder: in summer you can die in my car
10:35 PM XXCoder: i open all 4 doors daily when i used to go to work everyday
10:36 PM drdoc: Bleepshop: sweet!
10:36 PM Bleepshop: Ah. 4-40 AC... Roll all 4 windows down and roll 40 over the limit. LOL
10:36 PM XXCoder: what foil does is heat air rather than counter. that way i cqan get rid of most heat fasy
10:36 PM drdoc: roycroft: I rather somebody else does the work?
10:37 PM drdoc: Bleepshop: 4-40, here, just produces a convection oven
10:37 PM roycroft: is it true that in lubbock, if you stand on your tip-toes you can see the next county, and if you stand on a tuna can you can see oklahoma?
10:37 PM drdoc: yup
10:37 PM -!- #linuxcnc mode set to +v by ChanServ
10:38 PM * roycroft has heard that story several times
10:38 PM drdoc: you know how texans tell a rich Okie from the poor ones?
10:38 PM XXCoder: if you throw up a camera sphere, you can see 6 states from flat spot
10:38 PM roycroft: the rich ones have moved to texas?
10:38 PM drdoc: the rich Okies have TWO mattresses strapped to the camper top!
10:38 PM XXCoder: wow high end
10:39 PM drdoc: roycroft: it's flat.
10:39 PM roycroft: i've not been to that part of texas
10:40 PM Tom_L: it's pretty flat here
10:40 PM drdoc: when I worked in the oilfield I loved coming home after evening tour on NYD or July 4th
10:40 PM roycroft: i have mountains to the east and mountains to the west and mountains to the south of me
10:40 PM Tom_L: only one way out!
10:40 PM drdoc: the horizonal[sic] refraction means you can see fireworks 50-60 miles away
10:41 PM roycroft: mere mountains do not stop me
10:41 PM XXCoder: where i live you cant see far at all
10:42 PM XXCoder: land arent flat like someone ironed it
10:42 PM drdoc: Fun Fact: in the late '90s, there was a study that claimed Lubbock County is the most altered ecology on the planet
10:43 PM drdoc: 98% of the life there, flora and fauna, is non-native
10:43 PM drdoc: that was by biomass, not numbers of species
10:43 PM roycroft: i should imagine that there were not a lot of plants and critters that lived there by choice
10:43 PM drdoc: heh
10:43 PM roycroft: and that the ecosystem was pretty fragile
10:44 PM drdoc: there's an "old indian story" about the high plains
10:44 PM roycroft: i'm not putting lubbock down
10:44 PM roycroft: but it's a pretty harsh climate
10:44 PM drdoc: when Great Spirit was making the earth, the plains were the last part
10:44 PM drdoc: GS was tired, and besides, all the pretty plants and friendly animals were used up
10:44 PM Bleep-CNC: roycroft: I can laugh at TX. I was born and raise dthere and got the hell out as soon as I turned 18.
10:45 PM drdoc: so He looked, and thought, and said:
10:45 PM drdoc: "The hell with it. Smooth it out and just make people crazy enough to live there."
10:46 PM drdoc: roycroft: it is.
10:46 PM roycroft: that may be why there are so many famous musicians from there
10:46 PM roycroft: everyone stays indoors
10:47 PM drdoc: when the steel & auto industries collapsed in the early 80s, a lot of the workers came down from Michigan and the Steel States to get rich on the drillinbg rigs
10:47 PM drdoc: the few that survived the summer wnet home the first winter
10:47 PM Bleep-CNC: You know what rich Texans and poor Texans have in common? It takes both of them all day to drive across their yards. The rich ones ride in style at 65 MPH and the poor ones have the kids pushing at 65 FPM. LOL
10:47 PM drdoc: it was too damn cold down here.
10:48 PM drdoc: that's really no joke
10:49 PM drdoc: the Detroit guys, particularly, would give us crap when we talked about winter coming
10:49 PM XXCoder: the winter is coming
10:50 PM drdoc: then winter came and they just wanted to hide in the doghouse, out of the wind
10:50 PM * Bleep-CNC is still waiting for the frigging dragons...
10:50 PM Bleep-CNC: ;D
10:50 PM drdoc: ?
10:50 PM Bleep-CNC: Game of Thrones joke.
10:50 PM drdoc: oh
10:51 PM Bleep-CNC: Game of Thrones via South Park joke.
10:51 PM roycroft: worst series final ever
10:51 PM drdoc: lol
10:51 PM Bleep-CNC: Wou;ldn't know.
10:51 PM roycroft: there isn't even any competition
10:52 PM roycroft: the got ending is in a class of its own for horribleness
10:52 PM Bleep-CNC: GRRM just never did it for me as SciFi or fantasy.
10:52 PM roycroft: it makes the seinfeld finale seem almost ok in comparison
10:52 PM drdoc: ouch
10:53 PM * Bleep-CNC prefers Niven, Kornbluth and Leinster.
10:53 PM drdoc: huh.
10:53 PM roycroft: the best series finale, of course, was newhart
10:53 PM Bleep-CNC: drdoc: Writers of good SciFi.
10:53 PM drdoc: Bleep-CNC: I've not heard of Kornbluth or Leinster
10:54 PM drdoc: but if they're in class with Niven, I need to read them
10:54 PM drdoc: Ringworld is still some of the best scifi ever
10:54 PM Bleep-CNC: The movie Idiocracy is loosely based on a pair of stories called 'The Marching Morons' and 'The Little Black Bag'.
10:54 PM roycroft: grrm requires one to live one's life in slow motion
10:55 PM * drdoc can do that
10:55 PM Bleep-CNC: So lots of Quaaludes then ? xD
10:55 PM drdoc: not lately
10:55 PM Bleep-CNC: I was talking about to deal with GRRM. LOL
10:55 PM drdoc: Quaaludes made me either, get in a fight, get laid, or get stopped for driving 126mph
10:56 PM * drdoc never really cared which
10:56 PM Bleep-CNC: Or all of the above simultaneously ? ;D
10:56 PM drdoc: nah
10:56 PM drdoc: driving 120+ on quaaludes takes serious concentration
10:57 PM drdoc: ugh
10:58 PM drdoc: it's almost 11 and now I'm wide awake
10:58 PM Bleep-CNC: I dunno, I smoke like a chimney and still manage to keep it between the lines at 240+ in a sim.
10:58 PM Bleep-CNC: MPH not KPH
10:58 PM drdoc: and the Lady just got home from a 12-hour shift, so I can't go banging around
10:58 PM drdoc: "in a sim"?
10:59 PM drdoc: no random potholes in a sim
10:59 PM Bleep-CNC: Biggest problem I have in the car is getting bored because I could go a lot faster than 80MPH if the car would hold together. LOL
10:59 PM drdoc: roycroft: was it you with whom I was discussing touchscreens?
11:00 PM CaptHindsight: Idiocracy is guidebook from the near future adopted my millions
11:00 PM Bleep-CNC: Or possibly me. I have several ELO units.
11:00 PM drdoc: lol, truth
11:00 PM drdoc: somebody told me to save my eyes and go for the bigger display instead
11:00 PM Bleep-CNC: Idiocracy is my worst nightmare... And LMAO funny.. LOL
11:01 PM drdoc: somebody who's nearly as old as me
11:01 PM drdoc: CaptHindsight: I fully agree
11:02 PM drdoc: So I ended up with a 1280x1024 ELO
11:02 PM drdoc: what's the favored UI for a 17" touch screen?
11:02 PM XXCoder: ELO unit?
11:02 PM drdoc: yup. Open frame
11:03 PM XXCoder: touchscreen?
11:03 PM drdoc: yup.
11:03 PM XXCoder: interesting
11:03 PM drdoc: why?
11:03 PM XXCoder: just was curious what it was
11:03 PM drdoc: oh
11:03 PM XXCoder: sounds useful in future
11:03 PM Bleep-CNC: OK. I just reset the X driver to half the current and if I shove the X the table moves before the head does.
11:04 PM drdoc: I got a good deal on it - the guy bought it to fit to industrial enclosures
11:04 PM drdoc: that made no sense at all
11:05 PM drdoc: sheetmetal guy, had a contract to make some custom HMI panels
11:05 PM Bleep-CNC: drdoc: I'm cheating and using arcade buttons in a bezel around the monitor tied to the hal pins.
11:05 PM drdoc: nice
11:06 PM Bleep-CNC: drdoc: I reset the current output on the driver from 4.2A to 2.4A and I still can't make the head slip.
11:06 PM drdoc: oh, no, I got that
11:06 PM drdoc: I meant what *I* posted made no sense
11:06 PM drdoc: how I got the monitor
11:07 PM Bleep-CNC: I've been having issues with dropped steps and the histogram looks fine, never gets outside the 40 tick marks after hours of running.
11:07 PM drdoc: dude bought it to make sure his cabinets fit rught
11:07 PM drdoc: right
11:07 PM drdoc: then sold it to me for peanuts
11:07 PM drdoc: I'm not sure he ever plugged it in
11:08 PM drdoc: Bleep-CNC: what kind of moves drop steps?
11:09 PM Bleep-CNC: I'm using F-Engrave to geneate 3 lines of text at a 45 degree angle and getting >1/8" of wander in 4"
11:10 PM drdoc: parallel port?
11:11 PM drdoc: err, are you using software stepgen?
11:11 PM Bleep-CNC: I've got twin 36V 10A supplies in this and thought it still might be a power issue, but I'm coming back to there being something wrong with this BOB.
11:12 PM drdoc: or you're outrunning your comms
11:12 PM drdoc: or you're outrunning your computer
11:13 PM Bleep-CNC: I have to invert the step signals in stepconf or the gantry acts apeshit. +Y is ok, -Y gives me -X and -Z at the same time, etc.
11:13 PM -!- #linuxcnc mode set to +v by ChanServ
11:14 PM Bleep-CNC: latency has been under 40K on this box.
11:14 PM drdoc: max?
11:15 PM Bleep-CNC: Yeah,
11:22 PM -!- #linuxcnc mode set to +v by ChanServ
11:25 PM Bleep-CNC: drdoc: Command I used was ' latency-histogram --nobase --sbinsize 1000 --show ' and it never re-scaled the display or spread past +40/-40.
11:26 PM Bleep-CNC: Right now it's running +20/-20.
11:37 PM drdoc: cool
11:38 PM drdoc: I guess the real question is whether your test still wanders if you slow it down
11:57 PM Bleep-CNC: I've taken F down to 5, played with the microstepping and I'm about to rip this fancy BOB out and replace it with a bog standard 1205 board.
11:58 PM Bleep-CNC: The parallel port is the built-in o the mobo and I've got everything I can turned off in the bios.