#linuxcnc Logs

Aug 19 2020

#linuxcnc Calendar

12:50 AM miss0r: morning
12:59 AM Deejay: moin
01:00 AM CaptHindsight: miss0r: hello Mr Flu
01:01 AM miss0r: soon to be mr. ex-flu
01:01 AM miss0r: Already feeling better.
01:01 AM CaptHindsight: good, hope it doesn't drag on
01:01 AM CaptHindsight: just winding down here 1:00
01:09 AM miss0r: CaptHindsight: I just did an imgur post of my old chassis build per request of a land rover dude in another channel. Have I ever shown that to you?
01:09 AM CaptHindsight: think so
01:09 AM miss0r: Well, here it is anyway: https://imgur.com/a/gHSQ9F6 Doing all that work, makes you want to show it off some more :)
01:11 AM CaptHindsight: all new suspension, interior, wheel arches, rockers, bumper covers
01:11 AM CaptHindsight: then it's time to freshen up the body of the land cruiser
01:12 AM CaptHindsight: lower door skins, some fender work and fresh paint
01:13 AM miss0r: damn that is alot of work. But it looks realy nice
01:14 AM CaptHindsight: https://imgur.com/8bzzAiJ wheel arches fresh from donor car in Arizona
01:14 AM CaptHindsight: was like $20
01:15 AM CaptHindsight: i sent a bone yard a pic with the outline of the metal I wanted, they guy went out with power snips and cut it near exact
01:16 AM CaptHindsight: my last truck https://imgur.com/NrIsqkx
01:16 AM miss0r: thats some serious customer service, if I've ever heard of it
01:16 AM CaptHindsight: yeah they didn't ship though
01:17 AM miss0r: nice truck. But I must admit I've always felt american cars have too small tires.
01:17 AM miss0r: it almost looks out'a place
01:17 AM CaptHindsight: I had to get a messenger serrvice to pick up the metal and take it to Fedex/kinkos to be boxed and shipped
01:17 AM miss0r: yeah well.. Can't win'em all
01:17 AM CaptHindsight: https://imgur.com/evTawLz another angle
01:18 AM CaptHindsight: that had a 454 cu in engine (7.5L)
01:18 AM miss0r: it realy is a beauty
01:19 AM miss0r: and that adds to the beauty as well
01:19 AM CaptHindsight: it would lift the front end off the ground
01:19 AM * miss0r giggles
01:19 AM CaptHindsight: had fiberglass fenders and hood
01:20 AM miss0r: What was it originally made of?
01:20 AM CaptHindsight: all steel
01:20 AM miss0r: I'm assuming steel?
01:20 AM miss0r: yeah
01:20 AM CaptHindsight: heavy gauge since it was a 65
01:20 AM miss0r: indeed
01:20 AM CaptHindsight: full frame as well
01:21 AM CaptHindsight: got a whole 6-7 miles to the gallon
01:21 AM CaptHindsight: 0.392024 L/Km
01:21 AM miss0r: that is only a little worse than my 101
01:21 AM miss0r: ;)
01:22 AM miss0r: i *still* use km/l
01:22 AM miss0r: and that translates yours to ~3km/l
01:22 AM miss0r: the 101 is aprox 3.7km/l
01:22 AM CaptHindsight: 2.55086 Km/L
01:22 AM miss0r: with ALOT less horse power to go with it
01:23 AM miss0r: if you use 6mpg, I opted for 7 :)
01:23 AM miss0r: As the 3.7 for the 101 is also 'best case'...
01:23 AM miss0r: :D
01:23 AM CaptHindsight: 2.97601
01:23 AM miss0r: hence the '~' sign
01:24 AM CaptHindsight: was carburetted
01:24 AM CaptHindsight: if the floats got stuck it would be even worse :)
01:24 AM miss0r: actualy. I'm thinking about replacing the dual carbs in the 101 with an injection system. That would drastically improve my mileage & power output
01:25 AM CaptHindsight: and add an ECU/computer
01:25 AM miss0r: I don't want to overcomplicate things. I actualy like that it is simple :D
01:26 AM CaptHindsight: https://rusefi.com/ was going to use this
01:26 AM miss0r: You can get an all'in'one unit
01:27 AM CaptHindsight: 85 Fiero https://bestcarmag.com/sites/default/files/6446506lt_side.jpg going to paint one of these for a friend
01:27 AM CaptHindsight: composite body
01:28 AM CaptHindsight: it sat for 20 years in a leaky barn
01:28 AM miss0r: damn
01:28 AM CaptHindsight: so I have to rebuild the engine cradle
01:28 AM CaptHindsight: low miles
01:29 AM CaptHindsight: so the lessen is, anything steel just rusts
01:29 AM miss0r: try doing the landrover issue where they bolt steel to alu.. idiots
01:29 AM CaptHindsight: back then the standard paint was lacquer
01:30 AM CaptHindsight: what did they use for paint on the old rovers?
01:30 AM CaptHindsight: enamels or?
01:30 AM CaptHindsight: i think they switched to urethanes here in the 90's
01:30 AM miss0r: I don't actualy know. I've never seen original paint on any of them
01:30 AM CaptHindsight: heh
01:31 AM miss0r: mind you, all my land rovers are pushing on 50 years og age.
01:31 AM miss0r: of*
01:32 AM miss0r: also; here in Denmark its one of the worst places on earth for rust buildup with out climate. coubled with the sea always being close.. AND added to that, we spread salt on the roads each winter to help prevent ice buildup
01:32 AM CaptHindsight: the cars I used to restore are that age and older now
01:32 AM CaptHindsight: https://cdn.dealeraccelerate.com/cam/34/1852/76372/1920x1440/1968-pontiac-firebird-coupe
01:32 AM miss0r: nice.
01:32 AM miss0r: I've always wanted a trans-am
01:32 AM miss0r: just becayse :D
01:33 AM miss0r: because*
01:33 AM CaptHindsight: I might redo a mid 60's pontiac mid size
01:33 AM miss0r: The real issue that inhibits my car restoration projects are vehicle prices here in Denmark
01:33 AM CaptHindsight: like a 64 https://cdn.dealeraccelerate.com/vanguard/1/63/275943/1920x1440/1964-pontiac-gto
01:34 AM miss0r: with out 180% import tax on cars, even old cars have a decent price tag on'em
01:34 AM miss0r: jeez... out=our
01:34 AM miss0r: for the second time
01:34 AM CaptHindsight: I make the same typos
01:34 AM miss0r: I do like the look of that GTO
01:35 AM CaptHindsight: they just get bigger as you go back farther
01:35 AM CaptHindsight: and then they get all rounded with popinty wings in back
01:35 AM CaptHindsight: popinty/pointy
01:35 AM miss0r: yeah... I'm not a big fan of the '50 model from the US
01:36 AM miss0r: its just a little much for my taste
01:37 AM CaptHindsight: https://0.cdn.autotraderspecialty.com/1957-Chevrolet-Bel%20Air-american-classics--Car-100849286-ac6c9ccacf010d0bb6f6a2ae8c41de44.jpg
01:37 AM miss0r: Yeah... I don't like the rear wings
01:38 AM CaptHindsight: they salt pretty heavily around here as well
01:38 AM miss0r: almost look like a prerun of "the jetsons"
01:38 AM CaptHindsight: if you keep your car off the roads in winter they can last 20 years
01:38 AM miss0r: yeah.. but with my projects being 4wd monsters, no way they will sit in the garage duing a blizzard :D
01:39 AM CaptHindsight: back in the 60-70's a car that lasted 5 years without holes around the wheels was a miracle
01:39 AM miss0r: anyway. I'm out. I will go add sealer to the corners of the sheets in the project and perhaps get to spray some primer on there. See you later
01:39 AM CaptHindsight: yeah for winter and salt truck I'd have rovers like yours
01:40 AM CaptHindsight: see you
03:50 AM Loetmichel: CaptHindsight: die strassencops is scripted reality. but yes, these are real cops and real cases (most of the time). and yes, germans are usually polite. just because you happen to be a criminal doesent mean you have to be rude ;)
05:17 AM JT-Cave: morning
05:27 AM Loetmichel: JT-Cave:morning. Although its closer to lunch here ;)
06:13 AM Tom_L: morning
06:14 AM XXCoder: good very early morning
06:38 AM alex_joni: JT-Cave: morning ;)
07:01 AM JT-Cave: hey alex_joni how's it going?
07:08 AM skec: Hi guys, may I ask how many files you need to run 2 stepper motors via parallel port using linuxcnc? It is simple setup using stepgen 7. I must prepare ini and hal files by hand. Shall there by anything else besides one hal and one ini file, just to test if my motors spin? Thanks!
07:11 AM skec: more precisely, I modify files downloaded from linuxcnc web page. However, there are always more files than one hal and ini file
07:21 AM JT-Cave: you need a tool file and a var file
07:22 AM skec: Thanks
07:22 AM skec: so for testing simple setup, 4 files in total needed
07:23 AM JT-Cave: assuming your using linuxcnc and not just a simple halrun
07:23 AM skec: yes, its linuxcnc
08:01 AM skunkworks: JT-Cave: what quad were you using in you shop fpv?
08:11 AM JT-Shop: skunkworks, probably the Tiny Whoop or the Beta 75S or the Mobula 6/7
08:16 AM alex_joni: JT-Cave: hi.. pretty good, was on vacation a couple of days
08:58 AM skunkworks: alex_joni: !
09:47 AM Rab: Surprise machining content at 0:46: https://www.youtube.com/watch?v=NHttc38S6kM
10:03 AM skunkworks: Rab: wow
10:04 AM skunkworks: I don't know why they needed the center - the tie would have taking his head off...
11:24 AM Deejay: hi
02:46 PM skec: Hi guys, could anyone suggest where to start looking after getting: function "parport.0.read" not found in hal file: addf failed
02:49 PM CaptHindsight: skec: check your .hal file, post it to a pastebin not directly in the channel
02:50 PM CaptHindsight: skec: how did you generate your config and .hal file?
02:51 PM skec: one sec, I will paste the hal file
02:53 PM CaptHindsight: pretty sure your error is that you don't have "parport.0.read" in your .hal file
02:53 PM CaptHindsight: why I asked about how you generated it
02:53 PM skec: https://pastebin.com/v6UnbQGG
02:54 PM skec: I generated it by hand
02:54 PM skec: I mean writing in notepad
02:55 PM skec: I think there is parport.0.read line in my hal file
03:01 PM CaptHindsight: I'm not on a LCNC system right now and I forget all the HAL debug and syntax
03:03 PM CaptHindsight: skec: are you going to software step from a LPT port?
03:04 PM skec: yes
03:05 PM skec: I want to control stepper through L298N, that is 4 phase control
03:05 PM skec: 4 wires from LPT
03:07 PM W1N9Zr0: you're missing the load command for parport module: loadrt hal_parport cfg=0x378
03:07 PM CaptHindsight: i recall you asking about this before
03:07 PM CaptHindsight: did you find the configs on the forums?
03:08 PM skec: yes, I have tried to compile several configurations to get my motor running
03:09 PM W1N9Zr0: http://www.linuxcnc.org/docs/2.7/html/hal/parallel-port.html#_loading
03:09 PM CaptHindsight: skec: ^^ and what is your LPT ports base address?
03:09 PM CaptHindsight: skec: you need to have the LPT port running first
03:10 PM skec: W1N9Zr0 -> no, parport is loaded via another hal file. I had 2 hal files and then in INI file, I include both of them. In LinuxCNC forum I was suggested to copy both hal files into one
03:10 PM skec: but I can assure, there is parport loaded
03:10 PM CaptHindsight: skec: you trying to jump into the deep end of the pool here
03:10 PM skec: parallel port address is 0x378
03:11 PM CaptHindsight: and you need to post all your hal and config files, I am a terrible mind reader
03:11 PM CaptHindsight: how are we to know that you have 2 hal files?
03:18 PM skec: yes, sorry... Its my fault
03:18 PM CaptHindsight: if i were you I'd write up all this on the forums
03:18 PM skec: yep, I am doing this
03:18 PM CaptHindsight: what the goal is and all your configs to this point
03:18 PM skec: I just thought that maybe its an easy fix
03:18 PM CaptHindsight: nope
03:18 PM skec: ok :)
03:18 PM CaptHindsight: you picked an uncommon application
03:18 PM skec: I will keep trying, thanks!
03:18 PM skec: exactly..I tried with step dir - there was no problem
03:18 PM skec: it worked right away
03:18 PM CaptHindsight: so you traded configuration complexity for low cost hardware
03:18 PM skec: exactly...
03:18 PM CaptHindsight: now you pay the price :)
03:18 PM skec: (doh)
03:18 PM Deejay: gn8
03:20 PM W1N9Zr0: if they're in separate files, you need to load the .hal with the laod command before this hal file
03:22 PM CaptHindsight: skec: when you have it all working please post the working configs on the forum for future reference
03:23 PM CaptHindsight: frustrating when some thread goes on but the final fix is missing
03:23 PM CaptHindsight: did it work, we will never know :)
03:24 PM skec: no problem :) I will
03:26 PM W1N9Zr0: if you have some circular references between the two files, and still don't want to combine them into one, i think http://www.linuxcnc.org/docs/2.7/html/hal/twopass.html can solve that
03:26 PM skec: W1N=> I put everything in 1 file. Commented out some lines that gives error. Now linuxcnc loads fine, with 1 axis, however, if I try to push motor, it does not work
03:27 PM CaptHindsight: andy mentioned using LED's on the 4 pins to check
03:28 PM Tom_L: CaptHindsight, you're supposed to have a one line answer fix all dammit!
03:28 PM CaptHindsight: easily see if they are out of sync or you are not toggling the IO
03:28 PM CaptHindsight: Tom_L: use Ste and Dir :)
03:29 PM CaptHindsight: Step
03:29 PM skec: question - is JOINT_0 giving something?
03:29 PM skec: when I run config wizard, I do not have JOINT_0
03:29 PM skec: but from forums, I have coppied HAL with JOINT_0
03:30 PM Tom_L: it is a new configuration addition to axis
03:30 PM Tom_L: if you are running 2.8+
03:32 PM veegee_: Hmmm how do I get air out of a manually filled grease gun
03:32 PM veegee_: Manually filled as in packed in with my finger
03:32 PM Tom_L: suck it out with a straw
03:32 PM veegee_: it's not just a single cavity
03:32 PM veegee_: Do I have to build a centrifuge just for this...
03:32 PM Tom_L: you should have packed it more carefully
03:33 PM veegee_: I know, I don't do it that way anymore
03:33 PM veegee_: I have like 10 grease guns with a grease fitting for filing
03:33 PM Tom_L: tap it on the bench and see if that works
03:33 PM CaptHindsight: no purge valve?
03:33 PM CaptHindsight: does is has a spring loaded plunger?
03:34 PM veegee_: There is but the air is in multiple cavities throughout the length of the canister
03:34 PM veegee_: yes
03:34 PM CaptHindsight: is/it
03:34 PM veegee_: Centrifuge will work but that's a last resort
03:34 PM veegee_: And it's damn expensive polyrex EM grease too...
03:34 PM CaptHindsight: leave it sit upright for 20-30 years
03:34 PM veegee_: centrifuge it is
03:35 PM CaptHindsight: heating
03:35 PM CaptHindsight: don't trap air as you pack
03:35 PM veegee_: these modern greases are incredibly resilient to heat
03:35 PM veegee_: I'll damage the additives and base oil before it starts to lose viscosity
03:35 PM CaptHindsight: the viscosity still drops
03:35 PM veegee_: very very little
03:35 PM CaptHindsight: they just don't go liquid until higher
03:36 PM veegee_: ok I'll test it out but I suspect I'll hit the smoke point of the oil well before the grease gets thin
03:36 PM CaptHindsight: pack it by hand into a tube first
03:36 PM Tom_L: tie a rope around it and swing it around your head
03:36 PM veegee_: aka centrifuge
03:36 PM veegee_: but have to make one much faster
03:36 PM CaptHindsight: and scream like a chicken?
03:36 PM Tom_L: don't forget to duck
03:37 PM veegee_: I have counterweights
03:37 PM Tom_L: or at least quack like a duck
03:37 PM veegee_: this should be a fun project
03:37 PM CaptHindsight: sounds messy
03:37 PM veegee_: I have a 30 HP motor sitting here doing nothing, why not put it to use
03:37 PM Tom_L: see what wall you can send it thru
03:38 PM CaptHindsight: maybe make a video for those folks that enjoy that sort of thing, sitting in jello, soaking in pudding, squeezing grease
03:38 PM veegee_: I'll obviously doo all the kinematics calculations first lol
03:38 PM veegee_: evaluate the strength of the holding jig, balance it properly etfc
03:38 PM CaptHindsight: use vacuum
03:38 PM veegee_: Hmm that's a good idea actually
03:39 PM veegee_: I have one of them venturi vacuum pumps that gets me to 0.92 bar
03:39 PM CaptHindsight: sorry
03:39 PM CaptHindsight: didn't mean to post one
03:39 PM veegee_: vacuum and a lot of stirring might actually work
03:40 PM CaptHindsight: sounds like a conundrum
03:41 PM skec: made it!
03:41 PM skec: it works :) will post the answer under: https://forum.linuxcnc.org/10-advanced-configuration/5494-stepgen-and-4-phase-steppers?start=10#178742
03:42 PM veegee_: Need to add an oil heater for my air compressor. Oil never goes above 50ÂșC in the crankcase so it just accumulates water
03:42 PM veegee_: Even in continuous operation for 2 hours, oil stays too cool
03:43 PM CaptHindsight: skec: \0/
03:43 PM veegee_: Or at least periodically heat it up to evaporate the water while the compressor is off overnight
03:49 PM CaptHindsight: vacuum will boil it off at room temp
03:55 PM veegee_: CaptHindsight I very highly doubt that
03:56 PM veegee_: have to check the phase diagram but nothing will happen at vacuum other than getting the air out
03:56 PM veegee_: it worked on a flexible tube of grease just now so it's promising
03:57 PM CaptHindsight: https://www.engineeringtoolbox.com/water-evacuation-pressure-temperature-d_1686.html
03:58 PM veegee_: Yeah this is grease, not water
03:59 PM veegee_: the phase diagram will look very different for the grease/oil
03:59 PM CaptHindsight: was applying the principle to the oil in the compressor
03:59 PM veegee_: OHH
03:59 PM veegee_: \sorry
03:59 PM veegee_: totally my bad, I thought you were talking about the grease for some reason
04:00 PM CaptHindsight: no problem
04:00 PM veegee_: <3 you
04:00 PM CaptHindsight: misunderstanding is my middle name
04:09 PM skec: just for your references. I have added a post how to control stepper motors from DVD ROM using L298N driver and linuxcnc. I know its kinder garden stuff, but still, someone might find it useful. https://forum.linuxcnc.org/10-advanced-configuration/5494-stepgen-and-4-phase-steppers?start=10#178764
05:01 PM berin_ is now known as _unreal_
05:02 PM _unreal_: so all major upgrdes on my home machine have been done WHAT a difference
05:13 PM Tom_L: what thread pitch tolerance is standard? 2B?
05:43 PM Tom_L: looks like it
05:47 PM Tom_L: _unreal_, what kindof parts are you gonna make now?
06:28 PM roycroft: another milestone!
06:29 PM roycroft: i routed out the mortise in the chop today, and was able to assemble the criss-cross, so my leg vise is partially assembled!
06:29 PM roycroft: that's the first bit of hardware i've fitted up to the bench
06:30 PM * roycroft sees the road sign that says "tunnel 150 miles" and wonders if there will be light at the end when he reaches the tunnel
06:33 PM _unreal_: I have not increased working area I have just made my machine far more rigid. and better faster spindle that runs MUCH cooler
06:33 PM Tom_L: there will be a cave in
06:34 PM _unreal_: more or less the new spindle runs cold compaied to what I had
06:34 PM _unreal_: cave in?
06:34 PM Tom_L: not you
06:34 PM _unreal_: I'm in florida....
06:34 PM _unreal_: you never know when there is going to be a sink hole LOL
06:57 PM _unreal_: this sucks I dont remember what computer I drew the cad drawing
06:57 PM _unreal_: on that I'm looking for
06:58 PM Tom_L: network search
07:00 PM _unreal_: that computer is not booted
07:00 PM _unreal_: DAMN I bet I did it on that one too
07:00 PM _unreal_: I guess its time to get it back into play
07:05 PM Tom_L: _unreal_, you're using fusion 360 aren't you?
08:03 PM andypugh: JT-Shop: You there?
08:04 PM andypugh: I am confused, index_es.templ has a list of all the hal components. index.templ does not, but appears to create that section by magic?
08:07 PM andypugh: I think I see roughly what is going on.
10:10 PM _unreal_: fusion 360 and designspark