#linuxcnc Logs

Jun 23 2020

#linuxcnc Calendar

01:10 AM pink_vampire: hi
01:32 AM Deejay: moin
02:13 AM pink_vampire: https://www.youtube.com/watch?v=-Gx_BL0e55M
04:32 AM Loetmichel: maaa, what are the odds? I just assembled a few monitor keyboards... first r/g led: only lights up red... WTF? checked: two red chips in the duoled. took a second one from stock: only green?!? checked: TWO GREEN CHIPS inside! the third one worked like intended... Maybe i should buy a lottery ticket today. ;)
04:58 AM JT-Cave: morning
06:27 AM Tom_itx: morning
06:31 AM Loetmichel: UAAAAAAAAHHH!!!!111 And there i wonder why that "USB3"n Thumbdrive i bought is so slow... The audacity of some manufacturers :-( -> http://www.cyrom.org/palbum/main.php?g2_itemId=17862&g2_imageViewsIndex=1
06:35 AM * JT-Cave has no clue what he is looking at...
06:37 AM Loetmichel: JT-Cave: USB2 thumbdrive with a soldered on USB3 plug, the USB3 part simply not soldered on
06:42 AM JT-Cave: does the chip give it away?
07:55 AM howto: hey people an year passed and i finally saw my step four basic 540 machine started to wiggle that milling tip all by itself:)) vampire your terminal wizardry does not and will not work on the pc's that does NOT want to work. It simply wont.It's not your fault. The stepconf file worked in the end in the most peculiar manner only I could have thoght
07:55 AM howto: it :))
07:56 AM howto: So I am basicaly a GOD now...don't worry I will share my powers with you people :)))
07:56 AM howto: but first....
07:57 AM howto: i need to install some CAM software in the linuxcnc distro :)))...i dodnt say i am a full fledged god yet :)))
07:58 AM howto: hey pink_vampire...i solved the problem the machine finally works.Well more than last year at least
07:59 AM pink_vampire: COOL!
07:59 AM pink_vampire: what was the issue?
07:59 AM pink_vampire: howto:
07:59 AM howto: I wished IchGucksLive was here to thank him for his support back then...if somebody sees him here transmit him my regards.
08:00 AM pink_vampire: I think he passed away.
08:01 AM JT-Cave: Loetmichel, oh I see the extra pins not soldered to anything now... they kinda blended in the photo
08:01 AM howto: well...in this case he allready saw my thanks from the upper dimension.
08:02 AM pink_vampire: now everything working fine?
08:04 AM howto: pink_vampire when the folder trick that you tried doesnt work the first time dont even bother to recompile again...it wont work in that manner...ever.It is something related to the newer linuxcnc versions and some computers i guess.
08:04 AM howto: the solution is simple. but first lets clear some terminlogies
08:05 AM howto: there are two configuration wizards
08:05 AM pink_vampire: ok
08:05 AM howto: the stepconf which is for NATIVE ports...again no terminal gig
08:06 AM howto: and the one bellow for the parallel ports on a SLOTED card
08:06 AM howto: i neede way too much time to understand that:))
08:07 AM howto: we are using the stepconf wizard for the native ports...embedded on the laptop,pc, or with the plug on the docking station
08:07 AM howto: what sits on a card uses EXCLUSIVELY the other wizard...PN something
08:07 AM howto: is that simple
08:08 AM pink_vampire: so now you need to do a test cut
08:08 AM pink_vampire: and make sure you don;t have real-time issue
08:08 AM howto: i managed to walk in the dark with the example file he gave me last year
08:09 AM howto: ooh i do have the realtime issue :))) dont you worry about it :))
08:09 AM howto: it shows up
08:09 AM howto: sooner or later if i disable hyperthreading it shows up a minute later from the linuxcnc launch
08:10 AM howto: if i work with just one core...and hyperthreading disabled...one...two minutes later:)))
08:10 AM pink_vampire: what is the max jitter that you are getting?
08:11 AM pink_vampire: howto: http://linuxcnc.org/docs/html/install/latency-test.html
08:11 AM howto: in a minute i'll tell you
08:11 AM howto: stepconf wizard gives you the option to test that
08:12 AM howto: i snapshotted a picture with the window
08:12 AM pink_vampire: cool
08:13 AM howto: when you see the numbers dont die please
08:13 AM howto: 203880ns
08:13 AM howto: and the one bellow is: 204692
08:14 AM howto: ns
08:14 AM pink_vampire: LOL
08:14 AM howto: yep something is wrong and i thoght the rtai kernel was going to do some wonders
08:15 AM Tom_itx: do you have a realtime kernel loaded?
08:15 AM Tom_itx: uname -a
08:15 AM howto: i suspect i should throw this so called "work staation"
08:15 AM Tom_itx is now known as Tom_L
08:24 AM howto: yeah is the rtai one
08:24 AM pink_vampire: what hardware do you have?
08:24 AM Tom_L: get a different pc then
08:24 AM howto: core i7 2982q
08:24 AM Tom_L: rtai works better on old junk
08:24 AM howto: Tom_L first i use a chainsaw on this one ...cus it cost me alot of money
08:24 AM Tom_L: keep it for something else or do that, your choice
08:24 AM howto: that is what the linuxcnc distro has
08:24 AM Tom_L: preempt-rt works better on new hardware
08:24 AM pink_vampire: I can't find any cpu with that model
08:24 AM pink_vampire: are you sure it is "i7 2982q" ??
08:24 AM howto: hold on pink_vampire
08:26 AM pink_vampire: I'm not sure how to help you
08:27 AM howto: those numbers need to be inserted somewhere in the linuxcnc program or the axis setup window...were do i put them to compensate for my crappy computer
08:27 AM howto: ?
08:27 AM howto: that info i got from the stepconf wizzard
08:27 AM howto: but it didnt told me where to put them
08:28 AM howto: it just told me that i will need them
08:28 AM howto: i suppose there is a hal setup wizard that uses those numbers?
08:29 AM pink_vampire: you need to calculate your max steps per seconds based on your max jitter number, but in your case that number is SOO high = to not very practical to lower the speed of the machine that much.
08:30 AM howto: but the machine seems to work at reasonable speed...without carving in any piece of course
08:31 AM howto: i suppose Tom_L is right with the preemt rt installment on the system...probably wont do much but worth a try
08:31 AM howto: does anyone have a deb package of that? :)))
08:31 AM pink_vampire: maybe
08:33 AM howto: heeey....is there a process monitor on the linuxcnc distro?...i just been struck by an awsome idea
08:33 AM howto: maybe if i give linuxcnc the highest priority i can get it to stop complaining about life
08:34 AM howto: and letting me live mine that is :))
08:34 AM howto: like the process monitor in ubuntu i mean
08:34 AM pink_vampire: skunkworks: ^ any idea how to help this poor guy?
08:35 AM howto: pink_vampire are you using the linuxcnc debian 7 distro ?
08:35 AM pink_vampire: correct
08:36 AM pink_vampire: I'm using it with very old computer
08:36 AM howto: is there a process monitor program in it...soi do not have to just boot in to it just to check that :))
08:36 AM howto: like the task manager in windows
08:36 AM pink_vampire: there is task manager
08:36 AM pink_vampire: but this is not the issue
08:37 AM howto: i figured as much :))
08:38 AM howto: the guy last year told me that smictrl program can bring a cpu in a somewhat realtime mode and could somehow alleviae the issue
08:38 AM howto: a cpu like mine that is
08:38 AM pink_vampire: the cpu is Q9300 and I have 3GB of ram
08:39 AM howto: that is a dual core with 6mb of cash...very good cpu
08:39 AM howto: or quad i forgot
08:39 AM pink_vampire: mine is quad
08:40 AM howto: and you work with it with all the cores or you disabled some of them?
08:40 AM pink_vampire: all the cores
08:41 AM pink_vampire: but I think my installation is 32 bit
08:41 AM howto: i heard that i have to disable most of them on mine
08:41 AM howto: ooh...that is a different beast
08:41 AM howto: i suspect that isnt the issue....probably the bus isnt fast enough or something
08:42 AM pink_vampire: let me ssh to the machine and then I will be able to give you more info
08:43 AM howto: by the way what do you guys use to de-rust the axles...except changing them?
08:43 AM pink_vampire: 3.4-9-rtai-686-pae #1 SMP PREEMPT Debian 3.4.55-4linuxcnc i686
08:43 AM pink_vampire: surface rust? or deep rust?
08:44 AM Rab: howto, axles?
08:45 AM pink_vampire: maybe in the car
08:45 AM howto: enough rust :)) surface i suspect but yeah one of the axles makes screeching sound and sometimes it got stuck...after a day of lubricating and using some auto de-rusting spray i made them not to be as bad
08:46 AM howto: but i dont want to affect them more then they are
08:46 AM howto: my primary language is not english
08:47 AM Rab: howto, do you have a picture?
08:47 AM howto: so i just barely hear some screech now
08:48 AM howto: i can make one
08:48 AM pink_vampire: for light stuff I'm using blue/rust remover, and for deep rust evaporust, or the stuff in the plastic spary, like a gel
08:50 AM Rab: Evaporust works great, but heavy rust will leave pitting. For components like linear rails where the surface finish matters, the key is to keep them greased so rust doesn't form.
08:51 AM howto: it allready has pitting if pitting means some numerous dark spots :))
08:51 AM howto: yeah..i found out that the hard way Rab :))
08:52 AM howto: i should have greased them before letting it for a year not working
08:53 AM howto: well...i am just going to continuusly greasing them from now
08:53 AM pink_vampire: buff is with scotch bright
08:53 AM pink_vampire: and take a picture
08:55 AM howto: anyway...some CAM software easily? installable in linuxcnc distro...or this ubuntu distro i am running now
08:55 AM Rab: howto, that's fine. Continue to use the same rails and bearings together until they wear out. If you replace anything, I recommend replacing both the rails and the bearings. That way if the old bearings were damaged by the rusty rails, they won't prematurely wear the new rails.
08:55 AM Rab: howto, what kind of CAD are you using?
08:56 AM jymmmm: Rab: MS-Paint :D
08:56 AM howto: kiCAD...i wanted to use the machine to do pcb work
08:56 AM pink_vampire: then you can use flatcam
08:57 AM Rab: howto, https://hobbycnc.com/kicad-flatcam-isolation-route-pcbs/
08:58 AM Rab: jymmmm, I do almost everything in Inkscape with gcodetools, which is pretty close.
08:58 AM pink_vampire: are you doing any actual cad?
08:58 AM jymmmm: Rab: Well, not THAT close. and inkscape isn't too bad at all for 2D stuff
08:59 AM Rab: pink_vampire, no.
09:02 AM pink_vampire: cad https://i.imgur.com/EMrbzQi.png
09:02 AM pink_vampire: machined https://i.imgur.com/lbATnXg.png
09:03 AM Rab: jymmmm, I suspect that Inkscape's dimensioning isn't super rigorous under the hood. And it rounds off to .001", which is annoying. So I don't think I can call it actual CAD. But it has done a lot for me.
09:04 AM howto: heeey inkscape can replace the expensive corel draw that was recommended to me when i bought this curse of a machine
09:04 AM jymmmm: Rab: That is due to the SVG specs they are adhering to. I spoke to the Dev's about that years ago
09:04 AM howto: thank you for the tip Rab
09:04 AM Rab: howto, sure1
09:05 AM howto: you see guys when others talk about other things i get results in my favour :)))
09:06 AM howto: but i will still need CAM software a nd ido not find anything like .deb installable :)))
09:06 AM pink_vampire: for debian??
09:07 AM Rab: howto, try PyCAM: http://pycam.sourceforge.net/
09:07 AM pink_vampire: https://carbide3d.com/apps/pcb/
09:07 AM Rab: Newer FreeCAD has some kind of CAM capability, although I haven't used it.
09:07 AM pink_vampire: or the new version http://copper.carbide3d.com/
09:08 AM howto: allready tried pycam does not want to install
09:08 AM Rab: pink_vampire, that Berta gauge turned out great, but I see no 3D; I think it would be trivial in Inkscape. ;)
09:09 AM howto: carbide copper is ome online crap...no
09:10 AM howto: i heard about native cam but it install procedure needs nsa and equation group altogether to finish :)))
09:13 AM howto: nobody bothered to compile a dvd with all the free CAM software available in some installable packages? man windows era was definitely something with those codec packs and other things
09:13 AM howto: :))
09:14 AM pink_vampire: for 3d or 2d?
09:15 AM jymmmm: 2.5D
09:15 AM howto: everythinng available of course if you are asking for what i wrote the above...if you ask what i specifically need?
09:15 AM howto: 2d i guess...a pcb doesnt need much
09:16 AM howto: flatcam would be nice but doesnt have a deb package
09:16 AM pink_vampire: I'm using flat cam for pcb, and at the past I did them free hand in solidworks
09:17 AM pink_vampire: http://flatcam.org/download
09:18 AM howto: no deb package?
09:18 AM pink_vampire: I'm use it on windows
09:18 AM howto: ooh...
09:18 AM howto: hat's a smasher i can tell you that :)))
09:19 AM Rab: howto, I didn't have any problem installing from source.
09:19 AM howto: its like a lot of walls i have to hit my head in guys :)))
09:20 AM howto: Rab that's beacause you are a level 9000 wizard :))
09:20 AM howto: i am -9000
09:20 AM pink_vampire: howto: LOL sounds like me at the beginning
09:20 AM Rab: howto, flattery will get you everywhere.
09:21 AM howto: i wasnt doing flattery Rab
09:22 AM howto: i know that what info i will gather this year i will be able to use next year....i know that much from experience
09:22 AM howto: and from what i learned today...probaly the one that will give the info by the time i will be able to use it...the guy will die too :))
09:23 AM howto: aah...tugh life
09:23 AM howto: tough life
09:24 AM jymmmm: Thug Life https://www.youtube.com/watch?v=ub2gw0nIRTo
09:26 AM howto: jymmmm make a deb package for flatcam man...i will apreciate the effort :))
09:28 AM howto: heeey I found something
09:30 AM howto: where i can put the pictures of configuring linuxcnc for step four cooltool basic 540 so event the unregistered users can see or download them?
09:30 AM howto: i do not want to just keep the info for myself
09:31 AM howto: where that t from "even" came from? :)))
09:31 AM howto: dang keyboard
09:32 AM jymmmm: howto: They provide instructions for ubuntu... http://flatcam.org/manual/installation.html
09:34 AM howto: yeah...manual...that's what worries me :)) but i will have to do it in the end
09:37 AM howto: heey...it might be easier with the chosen distro that they have...chosen.By some infinitesimal chance it is ubuntu...it just might work. I'm a genius...i'm totally not using any info from this chat right now :)))
09:38 AM howto: aah yeah jymmmm...thug life...that's what's up :))))
09:49 AM howto: i am going to d the installation of flatcam tomorow .
10:30 AM Loetmichel: *note to self:* When laser engraving: tape the material to be engraved down... and i made no spares :-( -> http://www.cyrom.org/palbum/main.php?g2_itemId=17865&g2_imageViewsIndex=1
10:33 AM jymmmm: skunkworks: Put the fiber in a corrigated conduit - https://www.fiberoptics4sale.com/blogs/archive-posts/95047814-101-guidelines-for-fiber-optic-cable-installation
10:34 AM jymmmm: Loetmichel: DOH
10:35 AM jymmmm: Loetmichel: I have various weights i use for just that thing
10:38 AM jymmmm: skunkworks: https://www.innerduct.com/taxonomy/term/5
10:51 AM Deejay: re
10:51 AM JT-Cave: lo
11:18 AM skunkworks: jymmmm: I actuall read that article ;) thanks!
11:58 AM pink_vampire: Loetmichel: If you can't make it right, name it Art!
11:59 AM t4nk_freenode: my house is riddled with state of the Art!
11:59 AM Loetmichel: pink_vampire: already printed a replacement, just have to paint it tomorrow and laser again
12:00 PM Loetmichel: THIS TIME glued down to the laser cutter ;)
12:00 PM Loetmichel: s/glued/taped
12:01 PM pink_vampire: what laser is do you have that is that wobbly?
12:19 PM Loetmichel: wobbly?
12:20 PM Loetmichel: i lasered that at 5W and with 40mm/sec
12:20 PM pink_vampire: shake the parts
12:20 PM * Tom_L missed the lunch whistle
12:20 PM Loetmichel: seems the vibrations of the accelerating/decellerating laser head were enough to move the part laying on the aluminium bed
12:21 PM Loetmichel: pink_vampire: that one: https://www.youtube.com/watch?v=CcXoe3QBUzA
12:23 PM pink_vampire: I hope that you got something with decent rails
12:24 PM Loetmichel: cheapest 40W co2 laser on the market
12:24 PM Loetmichel: i doubt it has decent rails ;)
12:26 PM pink_vampire: it's like H profile linear rails?
12:27 PM Loetmichel: more like an aluminium extrusion with ball bearing wheels on it
03:50 PM Deejay: gn8
06:04 PM flyback: https://realterm.sourceforge.io/
06:04 PM flyback: I need to try again to fix the com port mapping in wine to make this work
06:04 PM flyback: sometime
06:04 PM flyback: or just use a old xp/7 laptop
06:13 PM Tom_L: realterm doesn't work?
06:13 PM Tom_L: i've used that for years on win
06:50 PM perry_j1987: just learned about hydraulic piston pullers for fixture plates today
06:51 PM Tom_L: stud pullers?
06:52 PM perry_j1987: ya
08:35 PM pink_vampire: hi
08:36 PM Tom_L: there you go breakin the silence
08:36 PM pink_vampire: LOL
08:36 PM pink_vampire: I want to a Jewelers Saw
08:37 PM Tom_L: do you make jewelery?
08:37 PM pink_vampire: not in the way most people think about jewelery
08:38 PM pink_vampire: but yeah. I want to start doing more fine work
08:38 PM Tom_L: looks like a coping saw with a special blade
08:38 PM pink_vampire: it is just look like coping saw
08:42 PM jymmmm: I thought a jewelrs saw was more like a wire than a "blade"
08:43 PM Tom_L: yeah
08:54 PM veegee: Where can I buy ASME compressed air tanks?
08:54 PM veegee: Other than old compressors on kijiji
08:55 PM veegee: I'm looking for an extra 120 gallon size tank
09:04 PM Tom_L: https://www.bendpak.com/shop-equipment/air-compressors/features/asme-rated-tank/
09:04 PM Tom_L: not home depot or harbor freight
09:05 PM Tom_L: what pressure?
09:05 PM Tom_L: my 80 gal goes up to 175psi
09:06 PM Tom_L: veegee, why do you need an extra tank?
09:07 PM Tom_L: at some point you should question if you need an on demand screw compressor instead
09:08 PM Tom_L: https://www.compressorworld.com/120-gallon-air-tank-vertical-24-x-67-with-8-base-ring-asme-200-psi-a10049.html
09:10 PM Tom_L: bendpak is more expensive
09:11 PM veegee: 300 PSI or so
09:11 PM Tom_L: https://www.mantank.com/upl/downloads/industry-solutions/reference/pressure-vessels-and-air-receivers-catalog-e49eb30c.pdf
09:13 PM Tom_L: theres a few there that are 300
09:17 PM roycroft: an extra compressor tank can cut down on the number of pump cycles
09:18 PM roycroft: i've thought about getting another tank for mine
09:18 PM jdh: I have some 4500psi bottles for sale
09:18 PM roycroft: which has a 60 gallon tank
09:18 PM Rab: What's harder on a compressor, more cycles or longer cycle duration?
09:19 PM roycroft: i don't know
09:20 PM roycroft: but if you're doing something that takes a while (but not too long), cycling less often would even out the airflow better
09:20 PM roycroft: if you're doing media blasting for hours on end you just need a bigger compressor with a 100% duty cycle rating
09:21 PM roycroft: i often find myself doing stuff that causes the compressor to cycle a couple times
09:21 PM Rab: Seems like longer duration would get hotter and increase max temperature swing, which might be harder on moving parts. But I don't know.
09:21 PM roycroft: my thinking is that if i added another 100 gallon or so tank i'd probably be able to complete some of those operations without cycling it
09:22 PM roycroft: but i haven't bothered looking for another tank
09:22 PM jdh: but twice as long to pump up
09:22 PM roycroft: and i'm not sure where i'd put it anyway
09:23 PM roycroft: yes, it would take longer to bring up to pressure
09:23 PM jdh: does yours hold pressure over days?
09:23 PM jdh: or hold most pressure?
09:23 PM roycroft: mostly
09:23 PM roycroft: i do try to drain it once in a while when i remember
09:24 PM roycroft: one of my air hoses has a small leak
09:24 PM roycroft: but if i disconnect that hose it will hold pressure for days
09:25 PM Tom_L: my ball valve leaks in the winter
09:25 PM roycroft: shrinkage
09:25 PM roycroft: all balls do that when cold
09:26 PM veegee: yes, to cut down the number of pump cycles and increase the length of the pump cycle
09:26 PM Tom_L: i just fixed the drain valve yesterday and drained ~3 gal from it. since, it's held pressure good
09:26 PM veegee: I have too much space in my new workshop
09:27 PM veegee: also I can stick it at the other end of the shop
09:28 PM veegee: and high pressure means good airflow at the end where the regulator is even with narrow pipes
09:28 PM veegee: at 300 PSI, about double the mass of air is being moved than 150 PSI for any given flow rate
09:29 PM Tom_L: you should build a shelf and mount it up high out of the way
09:30 PM veegee: yeah that's the plan
09:30 PM jdh: on the roof
09:30 PM veegee: let the sun heat up the air for bonus pressure
09:30 PM Tom_L: naw some jack would take pot shots at it
09:30 PM Tom_L: negative effect in the winter
09:30 PM veegee: no the building is too big. You can't see it from ground level
09:30 PM veegee: yeah it'll be a problem in winter
09:38 PM jymmmm: bury it 8ft underground, 58F all year long
09:44 PM roycroft: it got up to 33 here today
09:44 PM roycroft: i could use a basement that's way underground
10:50 PM net|: https://netpipe.ca/?p=4419