#linuxcnc Logs

Jul 23 2022

#linuxcnc Calendar

05:03 AM XXCoder: testing
05:12 AM Tom_L: it takes it a while to build the index
05:12 AM Tom_L: it won't be there yet i doubt
05:12 AM XXCoder: today log exists
05:12 AM XXCoder: just not recording anything new I guess due to indexing
05:12 AM travis_farmer: i can confirm as well
05:20 AM Tom_L: it should be there now
05:41 AM Tom_L: i wonder if that server is slow because it's an intel chipset on that ethernet card
05:42 AM travis_farmer: may be all the lewd content you are downloading in the background ;)
05:42 AM Tom_L: no, that's all cached on the router ssd :)
05:43 AM travis_farmer: lol
05:43 AM Tom_L: i wonder if i could put the server on that
05:43 AM Tom_L: external usb
05:44 AM Tom_L: it _can_ be set up for cloud access
05:45 AM travis_farmer: depends on the hardware i guess. i ran my website on an Rpi once, and it was terrible...
05:48 AM Tom_L: yeah i had it on a pc104 once and that really sucked
05:49 AM travis_farmer: mine now runs on a old dell poweredge 1950, that seems stable, but uses a lot of power...
05:50 AM Tom_L: i dunno what mine is. i literally dug it out of a trash can and it's running headless
05:50 AM mrec: hm do I have to create another spindle eg. spindle.1 if I want to use a stepper for tapping?
05:50 AM Tom_L: no
05:50 AM Tom_L: you sync the axis to the spindle and use g33something
05:50 AM mrec: ok, so I'll just create another joint eg. B axis
05:51 AM Tom_L: stepper for tapping??
05:51 AM mrec: https://i.snipboard.io/t9kSue.jpg
05:51 AM Tom_L: on mine i synch'd the spindle
05:52 AM mrec: I'm not using that 1.5kw motor with the spindle, nor do I have an encoder attached (the original 750w controller doesn't support all that)
05:52 AM Tom_L: i don't know then
05:53 AM mrec: that's why I have wired the stepper next to the spindle
05:53 AM mrec: once done I can just remove it.
05:54 AM mrec: the ER25 carries a spring loaded tapping extension
06:41 AM -!- #linuxcnc mode set to +v by ChanServ
07:06 AM refo[m]: Good morning, all. Does anyone know if any of GUIs support visualization of non-standard arrangement of joints? Like non-orthogonal linear axes or rotaries slaved to linear stages?
07:07 AM refo[m]: As far as I can tell AXIS and gmoccapy both expect the A rotary to be workholding
08:10 AM ZincBoy[CAON][m]: @mrec LinuxCNC does not have a peck tapping cycle but you can create one using multiple G33.1 calls. I haven't bothered with peck tapping at all as this is not necessary when using appropriate taps.
08:14 AM ZincBoy[CAON][m]: For your setup, I would configure your spindle stepper as the C axis. Tapping would then be a series of G1 Z C F moves. You would not need spindle sync moves and it would make control much easier. You also would not need the floating tap holders.
08:16 AM mrec: ZincBoy[CAON][m]: thanks
08:16 AM mrec: I have configured it as B axis since I'm actively using A and C with my mill.. but it gave me the picture that something's missing in linuxcnc
08:17 AM mrec: a proper setup for steppers as spindle
08:17 AM mrec: the B axis has a limit.. and I saw that other people also set up the limit eg. -30000 +30000
08:18 AM ZincBoy[CAON][m]: Yes, LinuxCNC is natively missing the concept of a position controlled spindle.
08:18 AM ZincBoy[CAON][m]: Just set the limit to +/-1e37
08:19 AM ZincBoy[CAON][m]: That is what I set my rotary axis with no physical limits to. You won't run out of range in this universe 🙂
08:24 AM ZincBoy[CAON][m]: The lack of the awareness of spindle acceleration or position makes rigid tapping a bit tricky to use. Because a real spindle does not reverse instantly, the G33.1 command will go past the set endpoint by however many rotations the spindle takes to reverse. This is a problem when tapping blind holes and close to the full depth of the tap. I end up having to do some experiments to see how each setup behaves to get an exact value.
08:26 AM mrec: I have a few blind holes here that's the next problematic item I was thinking about
08:26 AM ZincBoy[CAON][m]: Using the B axis control approach avoids the whole issue as it is exact.
08:31 AM mrec: it shouldn't be so difficult to add stepper support to the spindle code basically it should just loop back the stepper pulse itself as A/B/I pulse don't you think?
08:33 AM mrec: but the direct positioning of the spindle is still not in the spindle code I guess.
08:33 AM ZincBoy[CAON][m]: The challenge is in the motion planner. The current motion planner does not factor the spindle into the trajectory at all. The spindle is just "at speed" or not.
08:34 AM ZincBoy[CAON][m]: The way around this is to do what you have and convert the spindle to a rotary axis. That way it is factored into the motion control planning.
08:34 AM -!- #linuxcnc mode set to +v by ChanServ
08:35 AM ZincBoy[CAON][m]: This works well with a servo or stepper controlled spindle but does not solve things for an open loop system.
08:38 AM -!- #linuxcnc mode set to +v by ChanServ
08:54 AM Tom_L: https://www.youtube.com/watch?v=g99lUtjLfMU
08:55 AM Tom_L: the axis waits for the spindle no matter how long
08:55 AM Tom_L: proof on a crappy little sherline
08:59 AM ZincBoy[CAON][m]: I have more the opposite issue. A 10hp cat40 spindle does not even notice tapping an M2 thread. So when the G33.1 reverses the spindle, it takes a few rotations for that to happen. This means the tap goes deeper than programmed. Spindle sync is kept for the whole operation so no issues with breakage unless it hits the bottom of the hole.
08:59 AM Tom_L: yeah i can see that
09:00 AM Tom_L: that's where a good programmer/operator comes in
09:00 AM Tom_L: do you use spiral flute taps?
09:00 AM mrec: I'm going to wire up the stepper now and do some tests.
09:00 AM mrec: I was just reading into that topic as well
09:09 AM ZincBoy[CAON][m]: For larger blind holes, yes. For small (<=M3) I use forming taps as you don't have chip clearance issues. I have a 3/4NC spiral flute I use for one job and it works beautifully.
09:10 AM Tom_L: true on the form taps
09:20 AM mrec: ZincBoy[CAON][m]: which drills do you use for m2?
09:23 AM ZincBoy[CAON][m]: 1.74mm for a form tap. This is very sensitive and you have little tolerance when form tapping. You need to go by the recommendation for your specific tap.
09:29 AM ZincBoy[CAON][m]: One thing I learned the hard way: pin gauge your holes before running small taps. I had some undersized drills that caused some issues. Oversized will tap fine. Just won’t have proper thread form.
10:16 AM -!- #linuxcnc mode set to +v by ChanServ
10:19 AM JT-Cave: when I form tap M3 in 6061 I ream the hole to size then dip the tap in TapMagic before tapping a hole
10:59 AM mrec: well so far I have connected the driver and configured linuxcnc and it works but I need a longer 4 wire cable for the stepper motor I can't leave the controller box infront of the machine
11:20 AM roguish[m]: are you running gcode? or just testing
11:21 AM roguish[m]: if gcode, look at G61, G61.1, and G64
11:22 AM mrec: yes I'm running g-code G0 B3600
11:24 AM mrec: g61 doesn't seem to have an effect on that... I would wonder that this is settable via g-code
11:25 AM TurnCNCde: good evening from Germany
11:26 AM TurnCNCde: is Andypugh here as of Latemacros gladevcp
11:26 AM roguish[m]: TurnCNCde: how's the weather over there?
11:26 AM roycroft: https://www.mcmaster.com/5106N48/
11:26 AM roycroft: that would be good cable for you, mrec
11:26 AM TurnCNCde: roguish[m] hot as of 32degC
11:27 AM mrec: ok got it sorted out
11:27 AM roguish[m]: roycroft: hey roy. got any win 7 pro CD keys around?
11:27 AM roycroft: our heat wave arrives tomorrow
11:27 AM roycroft: none that are not in use already, roguish
11:27 AM roycroft: i have some legacy apps that will not run on anything newer than windows 7
11:28 AM roycroft: so there are some vms running win7 hanging around still
11:28 AM roguish[m]: ok. dang. I borked one of my machines that I was using to tune motors.
11:30 AM roycroft: i have to decide almost immediately if i think i can get my veneers cut today and the top counter laminate for my cabinets
11:30 AM roycroft: once the heat wave arrives that's not an option any longer
11:30 AM roycroft: until it cools off
11:31 AM TurnCNCde: can somone Hep me on sorthing Things out
11:31 AM TurnCNCde: Help needed on reconfigure to AXIS and Touchy
11:31 AM roycroft: 38 on tuesday
11:33 AM TurnCNCde: This -> is the Forum Tread https://forum.linuxcnc.org/41-guis/26550-lathe-macros?start=250#247221
11:34 AM TurnCNCde: the Sim  under gmoccapy lathe_configs -> lathe_macro starts up and workes
11:35 AM TurnCNCde: python version on Debian10 is Python 2.7.16
11:35 AM TurnCNCde: shoudent that be 3.x
11:36 AM roguish[m]: What version of linuxcnc are you running? if master, yes, should be 3
11:36 AM TurnCNCde: 2.9.latest from today
11:37 AM roguish[m]: should be 3x
11:39 AM TurnCNCde: ok i think i made some understanding mistake
11:39 AM TurnCNCde: python3 --version  -> 3.7.3
11:39 AM TurnCNCde: so python != python3
11:40 AM TurnCNCde: so no need on that
11:41 AM roycroft: that's often the case, turncncde
11:41 AM roycroft: you can fix that easily though
11:42 AM TurnCNCde: Sorry EN is not my best What do you mean on easily
11:47 AM mrec: ZincBoy[CAON][m]: in case with the stepper as spindle, I would have to provide 2 feed rates no?
11:47 AM mrec: I wonder how I can link Z with the stepper now
11:48 AM mrec: hardware wise it would be easier to attach an encoder, and work with a virtual spindle
11:53 AM TurnCNCde: mrec is the spindel a Stepper or a servo
11:53 AM mrec: stepper
11:54 AM roycroft: with debian, you can use update-alternatives to select a default version of a utility
11:54 AM roycroft: update-alternatives --list python
11:54 AM roycroft: that will show you the list of python versions that the alternatives database knows about
11:55 AM TurnCNCde: mrec you may find a answer here  http://www.talla83.de/linuxcncspindel.html
11:55 AM roycroft: if you have versions that are not in the list, or if the list is empty, you can add them
11:55 AM TurnCNCde: roycroft got it done ans sorted out
11:55 AM roycroft: update-alternatives --install /usr/bin/python2.7 /usr/bin/python3.9 , for example
11:55 AM TurnCNCde: the problem is gtk3
11:55 AM roycroft: then update-alternatives --config python
11:55 AM roycroft: and you'll get a menu of options
11:56 AM roycroft: ok
11:59 AM TurnCNCde: roycroft i got multile gtk  problems as in the UI file
11:59 AM TurnCNCde: (gladevcp:2489): Gtk-CRITICAL **: 18:46:16.403: gtk_box_gadget_distribute: assertion 'size >= 0' failed in GtkNoteboo
11:59 AM gywilo[m]: bingo; I updated to latest stable kernel and my resolution problem fixed at 800x600 is resolved. Now I can start with the actual install
12:00 PM TurnCNCde: gywilo[m] that problem i got also with th latest ISO
12:01 PM TurnCNCde: gywilo[m] now im on 2.9 from the buildbot and all seams fine
12:17 PM TurnCNCde: ok im off Done
12:32 PM mrec: ok well I somewhat think it's not possible to use a stepper motor as spindle for tapping with linuxcnc (the easy way)
12:33 PM mrec: after all I think I have to create a second spindle, and wire up the stepper pulses with an encoder
12:35 PM roycroft: if you fed 50,000 volts to the stepper motor it would spin fast enough for tapping during the few nanoseconds before it released the blue smoke and caught on fire
12:37 PM mrec: I thought it's easier to synchronize 2 motors rather than adding an encoder :-)
12:46 PM mrec: is there any module available to convert step/dir to some ABI signal within linuxcnc / while still allowing to pass the signals forward?
01:31 PM ddB0515[m]: hello... (full message at https://libera.ems.host/_matrix/media/r0/download/libera.chat/5c068a8ee075e3069ddf4d878f5c2c1162810490)
01:31 PM * ddB0515[m] uploaded an image: (303KiB) < https://libera.ems.host/_matrix/media/r0/download/jauriarts.org/dlsJSGynCZwJXUbfnVTDUpXb/2022-07-23_19-28.png >
01:35 PM tcurdt: is there any reason to prefer a common anode over a common cathode signal wiring (or the other way around)? obviously differential is best - but between the other two? is there any reason to prefer one over the other?
01:53 PM XXCoder: Tom_L: log works
01:54 PM roycroft: tcurdt: convention in the environment you're working in would be the reason
01:54 PM roycroft: telcos, for example, universally run -48vdc power plants
01:55 PM mrec: ZincBoy[CAON][m]: are you still around?
01:55 PM roycroft: if you intruduce a component that has negative ground in a telco central office you will have a lot of problems unless you isolate the ground, which is almost imposssible and against regulations in those plants
01:55 PM roycroft: most of the world seem to prefer negative ground in their dc plants
01:55 PM mrec: I guess following is what I'm looking for
01:55 PM mrec: https://www.forum.linuxcnc.org/24-hal-components/46336-spindle-orient-and-rigid-tapping-without-an-encoder-m19-g33-1#246815
01:56 PM tcurdt: roycroft but in terms of signal noise there is no difference?
02:00 PM roycroft: from an engineering perspective i do not think it matters
02:00 PM roycroft: but i am not an ee
02:01 PM roycroft: what matters is to be consistent and compatible with the surrounding environment
02:18 PM -!- #linuxcnc mode set to +v by ChanServ
02:28 PM * JT-Shop is not super happy with Menards top of their line drawer guides
02:34 PM CaptHindsight[m]: I have a few in a box that I used for something else for a very short time
02:34 PM JT-Shop: I might try some Everbilt soft close as they have them at HD
02:35 PM -!- #linuxcnc mode set to +v by ChanServ
02:36 PM JT-Shop: https://www.woodcraft.com/products/soft-close-full-extension-drawer-slide-18-pair-model-kv-8450fm
02:36 PM JT-Shop: they must be nice for $36 a pair
02:37 PM CaptHindsight[m]: LCNC master now working in Gentoo
02:40 PM roycroft: i got some really cheap ones for my cabinet project, and they worked out brilliantly
02:40 PM roycroft: they were way less than the usual ones i get
02:41 PM roycroft: https://www.amazon.com/gp/product/B086RJLRJH/
02:41 PM roycroft: soft close are always expensive
02:42 PM JT-Cave: aye, I want soft close
02:42 PM roycroft: if your cabinets are level you usualy don't need soft close
02:42 PM roycroft: they are nice
02:42 PM roycroft: i'm just not willing to pay for them, especially for shop cabinets
02:42 PM roycroft: i have my own "soft close" mechanism
02:42 PM roycroft: it's called not slamming them shut :)
02:44 PM XXCoder: I see that next week is going to be "fun"
02:44 PM roycroft: but woodstock supply would be a good place to get them if you want soft close
02:44 PM roycroft: what length do you nee? 18"?
02:44 PM roycroft: need
02:45 PM roycroft: https://www.woodstocksupply.com/nj35d65-18ezp-drawer-slide-full-extension-soft-close-us-futaba.html
02:45 PM roycroft: $14.22 each if you get 10
02:45 PM roycroft: $15.80 each individually
02:45 PM roycroft: each meaning per pair
02:47 PM roycroft: i usually get all my drawer slides from there, except on this latest project, because i needed so many and took a gamble on ultra cheap (which paid off)
02:48 PM * roycroft heads back out to see if it's feasible to slice the veneers today and make a sandwich
02:50 PM JT-Shop: yep I need 18"
02:52 PM JT-Shop: I'll probably grab a pair of these from HD https://www.homedepot.com/p/Everbilt-18-in-Soft-Close-Full-Extension-Side-Mount-Ball-Bearing-Drawer-Slide-Set-1-Pair-2-Pieces-D94218E-ZP-W/302867519
02:55 PM roycroft: if you just need one pair that makes sense
02:55 PM roycroft: shipping would cost more than the price difference
02:57 PM JT-Shop: yep
02:58 PM JT-Shop: I think I used that same slide on some drawers I built in the machine shop and they close real nice and soft
03:01 PM roycroft: soft close would have been nice on the cabinets i just built but they would have added about $500 to the cost
03:01 PM roycroft: "don't slam the doors shut" is a much cheaper alternative :)
03:01 PM roycroft: s/doors/drawers/
03:01 PM mrec: is there a way to move a joint in the background eg. an angular axis in velocity mode?
03:04 PM CaptHindsight[m]: spin a motor?
03:05 PM CaptHindsight[m]: are there more details?
03:10 PM jpa-: you could have some HAL mux thing to switch between coordinate control & custom velocity control modes
03:13 PM JT-Shop: I'm guessing the only way to get a screen shot of the BIOS settings is with a camera?
03:13 PM CaptHindsight[m]: yes
03:14 PM mrec: I'll try my luck somehow :-)
03:14 PM mrec: https://www.forum.linuxcnc.org/38-general-linuxcnc-questions/42728-stepper-motor-like-a-spindle
03:15 PM mrec: I'm trying to get rigid tapping work with a stepper motor as spindle
03:16 PM CaptHindsight[m]: JT-Shop: I would also look into updating the BIOS on your new MB, the first update usually will work right from EFI over the network and not require you to download and unzip the update to a flash drive or root filesystem
03:16 PM ZincBoy[CAON][m]: mrec, I mentioned earlier that your setup will work fine as is for rigid tapping. Your spindle will be the B axis and you can program the move using G1 Z[pitch] B[rotation].
03:17 PM ZincBoy[CAON][m]: You won't use G33.1 as it is not needed.
03:17 PM JT-Shop: CaptHindsight[m], that's the first thing I did
03:18 PM mrec: ZincBoy[CAON][m]: well the problem is I cannot control the speed of the rotation
03:18 PM JT-Shop: it was quite easy as the BIOS has a built in update thingy
03:18 PM ZincBoy[CAON][m]: The speed is determined by the feed rate.
03:19 PM ZincBoy[CAON][m]: A G1 move with both linear and rotary axis will move at the linear feedrate and try to complete the rotary move in the same time.
03:19 PM mrec: but it won't be in sync with the pitch?
03:20 PM mrec: it will need an accurate configuration in the linuxcnc config no?
03:20 PM mrec: for every different pitch
03:20 PM ZincBoy[CAON][m]: It will be in sync because you program the linear move to match the number of rotations needed by that pitch.
03:21 PM ZincBoy[CAON][m]: Config stays the same. No difference there.
03:21 PM CaptHindsight[m]: JT-Shop: OK great
03:22 PM CaptHindsight[m]: JT-Shop: SVM should be off for software stepping and CPU core boost
03:23 PM mrec: ZincBoy[CAON][m]: thanks, sorry I was just thinking to complicated about it
03:24 PM mrec: I understand now.
03:24 PM CaptHindsight[m]: CPU core boost will bump the core speed up and create a latency spike since the system gets put on hold fora short while while the clock gets changed
03:25 PM JT-Shop: what is SVM?
03:25 PM CaptHindsight[m]: JT-Shop: SVM is virtual machine mode and has similar effects on latency
03:25 PM JT-Shop: Bari said the same thing on the forum
03:25 PM JT-Shop: I'll see if I can find that
03:25 PM CaptHindsight[m]: yeah I did
03:31 PM CaptHindsight[m]: JT-Shop: also make sure that Spread Spectrum is OFF, spread spectrum purposely varies the clock speeds to spread the spectrum of noise it generates, so it's like a built in variable latency generator :)
03:32 PM JT-Shop: ok, I'll look for that too
03:43 PM -!- #linuxcnc mode set to +v by ChanServ
03:48 PM * CaptHindsight[m] uploaded an image: (41KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/ROjevnStXnnCeLVATBZeMPTA/ly-23Jul2022-100.png >
03:48 PM CaptHindsight[m]: while starting and stopping youtubes
03:50 PM CaptHindsight[m]: https://forum.linuxcnc.org/media/kunena/attachments/1324/ly-22Jul2022-1264.png pretty close to yesterday
04:10 PM mrec: is there a way to tell axis to not simulate the B axis? I'm using it for threading.
04:12 PM JT-Shop: someone or some folks added linuxcnc to debian a while back
04:12 PM CaptHindsight[m]: the pushback on Sid will be that it is too unstable for noobs
04:13 PM Tom_L: as usual
04:13 PM CaptHindsight[m]: will get noobs asking for help when things break in areas unrelated to LCNC
04:13 PM CaptHindsight[m]: desktop won't load or show things, printing stopped, etc etc
04:13 PM Tom_L: stable is always close to outdated though it seems
04:14 PM JT-Shop: aye, so if I can get 11.4 to work it would be better
04:14 PM CaptHindsight[m]: and then a few days later after the next apt get upgrade it works again
04:15 PM CaptHindsight[m]: JT-Shop: yes and it will also work with the dev version of QTPYVCP and Python3.x
04:15 PM JT-Shop: I haven't had to touch my QtPyVCP in quite some time
04:16 PM Tom_L: maybe you should.. if you're like me you'll forget how
04:17 PM CaptHindsight[m]: https://www.qtpyvcp.com/install/bullseye.html this was accurate until there was a change to building the docs
04:17 PM JT-Shop: the BP knee mill is still running 2.7 I think...
04:17 PM JT-Shop: the CHNC is still running Ubuntu 10.04...
04:17 PM Tom_L: i'm on wheezy on the mill.. dunno what actual version number
04:18 PM Tom_L: anything newer would require a hardware upgrade
04:18 PM JT-Shop: hmm did the grub-customizer get added to debian?
04:19 PM JT-Shop: if it ain't broke don't fix it
04:19 PM CaptHindsight[m]: Turboss had LCNC 2.9 debs for deb-11 (bullseye) posted but not signed
04:19 PM CaptHindsight[m]: let me find the link
04:19 PM JT-Shop: it's so easy to just build a deb from a clone...
04:20 PM CaptHindsight[m]: https://repository.qtpyvcp.com/repo/linuxcnc_debs/
04:21 PM CaptHindsight[m]: i haven't started from scratch with Deb-11 since 11.3
04:21 PM CaptHindsight[m]: and a lot has changed in a month
04:22 PM CaptHindsight[m]: JT-Shop: grub-customizer got added to debian-11
04:22 PM JT-Shop: nice, it was such a pia to add it before
04:23 PM JT-Shop: https://github.com/jethornton/mesact/issues/1
04:23 PM CaptHindsight[m]: someone could build LCNC debs for deb-11 once a month and update that repo
04:23 PM JT-Shop: got some nice comments on that issue
04:23 PM CaptHindsight[m]: until we have a deb-11 LCNC 2.9 iso
04:24 PM CaptHindsight[m]: oh I forget we never will
04:24 PM CaptHindsight[m]: it will be install from debian from here on out
04:24 PM Tom_L: not much need if it's mainstream
04:24 PM JT-Shop: time to make some chicken crack
04:24 PM CaptHindsight[m]: who is building the official LCNC deb packages now?
04:25 PM Tom_L: JT-Shop, they are out there :)
04:25 PM Tom_L: re mesact
04:27 PM CaptHindsight[m]: https://tracker.debian.org/pkg/linuxcnc
04:30 PM pere: CaptHindsight[m]: seb_kuzminsky and smoe.
04:30 PM pere: CaptHindsight[m]: last I heard, seb_kuzminsky was working on an upload.
04:35 PM CaptHindsight[m]: thanks
05:02 PM JT-Shop: damn sprinkler nailed me good... jeans are out in the sun to dry...
05:02 PM XXCoder: lol
05:04 PM JT-Shop: hazzy[m], how are the chicks?
05:04 PM JT-Shop: if anyone came up here they would be blinded by the white... legs
05:05 PM hazzy[m]: JT-Shop: They are good! Getting big fast. I was out of town all week and when I got back this morning was surprised by how much they had grown
05:06 PM * hazzy[m] uploaded an image: (5722KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/xdratbbDQoWvrKbzLtmDugpf/ima_b02b2e3.jpeg >
05:06 PM CaptHindsight[m]: dinosaurs grow fast or they get eaten
05:07 PM JT-Shop: oh yeah they are spoiled for sure
05:08 PM roycroft: so cutting wafa thin veneers works brilliantly with my bandsaw the way i have it set up now
05:08 PM roycroft: the cuts are so clean i can hardly see the saw marks
05:09 PM JT-Shop: what blade are you using?
05:09 PM roycroft: i did need to run them though the drum sander, though, to do some final clean up
05:09 PM JT-Shop: got a photo of your setup?
05:09 PM roycroft: https://www.highlandwoodworking.com/wood-slicer-resaw-bandsaw-blades.aspx
05:10 PM hazzy[m]: roycroft: what blade are you using? I love the heighland woodworkingwood slicers
05:10 PM roycroft: that's what i always use for resawing
05:10 PM roycroft: i'll go snap a pic
05:10 PM JT-Shop: I use the same blade... prob need a new one
05:11 PM CaptHindsight[m]: hazzy: do they send you to any fun places?
05:11 PM hazzy[m]: roycroft: yep! Best blade out there for re-saving. I grew up at highland hardware, now highland woodworking. Spend at least several days a week there. It’s changed a lot, but still a really cool place
05:12 PM roycroft: they are the best resaw blades i've ever used
05:12 PM CaptHindsight[m]: when I was 18 i worked for a service that serviced and install the flight info systems for most airlines, they sent us to just about every airport everywhere, but just the airport :)
05:12 PM hazzy[m]: CaptHindsight: this was just a trade show in Dallas. My boss got sick so I was solo for machine demo and sales. It was a great show nevertheless
05:13 PM CaptHindsight[m]: hazzy: will you be at IMTS in Sept?
05:13 PM roycroft: the problem is that the sanding belt on the drum sander broke
05:13 PM roycroft: and all i had in stock was a used 180 grit belt
05:13 PM roycroft: so i'm having to take passes of <128th of an inch
05:14 PM roycroft: it would probably be faster just to use a hand sander
05:16 PM hazzy[m]: CaptHindsight: no, we usually just do fabtech, and the more specialized shows
05:16 PM * hazzy[m] uploaded an image: (4683KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/CDKRXCPUHOzDYqwUeheYUPwt/ima_e6e3353.jpeg >
05:17 PM hazzy[m]: I got this saw for free. Pretty clapped out, but still cuts really good with a wood slicer. Needs to put a riser kit on it so it uses the same blade length as the jet bandsaw
05:18 PM JT-Shop: can't beat free
05:19 PM JT-Shop: riser goes between the top and bottom in the back?
05:19 PM JT-Shop: looks like it's bolted together there...
05:19 PM hazzy[m]: JT-Shop: all it needed was new tires and wheel bearings. It could use a new motor soon
05:19 PM hazzy[m]: JT-Shop: yes
05:19 PM JT-Shop: motor does look a bit rough
05:20 PM roycroft: https://roycroft.us/Resaw-Setup/Resaw-Setup-1.jpeg
05:20 PM roycroft: https://roycroft.us/Resaw-Setup/Resaw-Setup-2.jpeg
05:20 PM roycroft: https://roycroft.us/Resaw-Setup/Resaw-Setup-3.jpeg
05:20 PM hazzy[m]: Nice fence!
05:21 PM JT-Shop: what is that green thing?
05:21 PM * hazzy[m] goes to cut a couple acres of grass
05:21 PM roycroft: it's like a feather board
05:21 PM roycroft: and it makes all the difference
05:21 PM * JT-Shop goes to see if his pants are dryish
05:21 PM JT-Shop: does it use the t slot?
05:21 PM roycroft: i'm resawing boards that are over 8' long
05:21 PM roycroft: yes
05:21 PM roycroft: and 7" wide
05:21 PM JT-Shop: I've never seen one like that, where did you get it?
05:22 PM roycroft: https://www.woodcraft.com/products/guidepro-featherboard
05:22 PM roycroft: https://www.woodcraft.com/products/guidepro-featherboard-extension
05:22 PM JT-Shop: thanks, I have so much problems trying to keep the board in position while resawing
05:22 PM roycroft: https://www.woodcraft.com/products/guidepro-anchor-bar-bow-products
05:23 PM roycroft: all that stuff was on sale for 20% off a couple months ago, so i thought i'd try it
05:23 PM roycroft: and it really works well
05:23 PM roycroft: you may not need the anchor bar
05:23 PM roycroft: my t-slot is too far away from the blade to mount the featherboard directly, so i needed the anchor bar
05:24 PM roycroft: i was taking slices that were a strong 5/32" thick, and sanding them down to 1/8" on the drum sander
05:24 PM roycroft: i would not have been able to do that without the featherboard
05:25 PM roycroft: you can see some of the slices in the first picture
05:26 PM JT-Shop: my miter slot is 6 5/8" center to the blade
05:26 PM roycroft: so i finished the easy stuff - i was making poplar veneer for balance veneer
05:26 PM roycroft: you'll need the anchor bar
05:26 PM JT-Shop: ok thanks
05:26 PM roycroft: i still have to slice the primary veneer, which is jatoba
05:26 PM roycroft: i anticipate that will be a lot more challenging
05:27 PM roycroft: jatoba is one of the hardest woods around
05:27 PM roycroft: and poplar is softer than most softwoods
05:27 PM JT-Shop: Compatibility: fits 3/8" x 3/4" miter slots from 2" to 8" from the blade
05:27 PM JT-Shop: hmm it says it fits up to 8"
05:27 PM roycroft: try it
05:28 PM roycroft: when i got my setup i got all three items, and made sure i'd be able to return the anchor bar if i didn't need it
05:28 PM roycroft: but i did
05:28 PM roycroft: and my t slot isn't 8" away from the blade
05:29 PM * roycroft wonders if he should go slice the jatoba today
05:29 PM roycroft: i may not be able to do the veneering for at least another week, with the heat wave coming in tomorrow
05:29 PM JT-Shop: looking at the application photo of the guide bar and I think I'd need it
05:29 PM roycroft: but on the other hand, the saw is all set up to slice wafa thin veneers
05:30 PM roycroft: i think when i tried it out i decided that i may be able to hold some boards in place, but i would not be able to get the squeegee part right in front of the blade at the correct angle without the guide bar
05:30 PM roycroft: the outfeed table was essential too
05:31 PM roycroft: without a good fence (and that's the one that came with the saw), a woodslicer blade in excellent condition, the green featherboard, and the outfeed table i would not be able to take thin slices like that
05:31 PM roycroft: all four things are necessary
05:32 PM roycroft: the outfeed table is hinged, and the support leg folds up and tucks inside it, so i can leave it on the saw at all times
05:32 PM CaptHindsight[m]: i was thinking about setting up a site to sell tools for woodworking woodyoudoit.com
05:33 PM JT-Shop: my outfeed table actually rests on the table saw extension
05:33 PM roycroft: nice
05:33 PM roycroft: that sounds like a simple setup
05:33 PM roycroft: simple is good
05:33 PM JT-Shop: it's 4' long or so
05:34 PM roycroft: mine's only 24" long, but that's enough for resawing like this
05:34 PM roycroft: if i decide to actually mill small logs with that saw i'll need a more substantial outfeed table
05:34 PM JT-Shop: my fence is 6" tall so I'll skip the extension as I don't have any boards over 8" and very few 8" boards
05:35 PM roycroft: you can always add it later if you need it
05:35 PM roycroft: i read an article about that featherboard
05:35 PM roycroft: then i looked up some youtube videos on it, and decided it was probably a good thing to have
05:35 PM roycroft: then it went on sale, so i got it
05:36 PM roycroft: and it's perfect for slicing like i'm doing
05:36 PM * roycroft decides to have a go at slicing the jatoba, while things are all set up
05:43 PM * JT-Shop wanders inside for the night
05:56 PM unterhausen: I should have gotten the jessem clearcut guides when everyone had them on sale for $200
05:57 PM unterhausen: but I need jt to explain how the outfeed table can rest on the the extension table
06:31 PM roycroft: it's impressive how much that jatoba board has twisted and warped over the course of a few weeks
06:31 PM roycroft: if i were to flatten it enough to cut veneers, i'd be lucky to get one slice out of a 5/4 board
06:31 PM roycroft: so that project is on hold
06:32 PM roycroft: i'll use the board for small stuff - i should be able to make a lot of small boxes with it
06:32 PM roycroft: unterhausen: his bandsaw outfeed table rests on his tablesaw extension table
06:33 PM unterhausen: I should check to see how far off my bandsaw and my tablesaw heights are. My lathe is unfortunately taller than both of them
06:33 PM roycroft: bandsaw tables are generally a lot higher than tablesaw tables
06:34 PM roycroft: i had to lower my bandsaw when i got it, so it would fit underneath my garage door if i wanted to move it outside, and it's still higher than my tablesaw table
06:34 PM roycroft: which is already higher than normal because it's on a mobile base
06:35 PM * roycroft will pick up another jatoba board or two on monday
06:35 PM roycroft: i don't mind slicing veneers and doing other work during a heat wave
06:35 PM roycroft: my problem is that it will be too hot to do the glue-up
06:35 PM roycroft: unless i use epoxy with the super-slow set hardener, which may be an option
06:36 PM roycroft: 38 degrees + titebond = guaranteed disaster
07:07 PM * hazzy[m] got about half the grass cut
07:07 PM hazzy[m]: Will cut along the road easements tomorrow
07:08 PM * hazzy[m] uploaded an image: (4807KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/LCTzzNKytisysDITwcnHIUxD/ima_611cf66.jpeg >
07:09 PM roguish[m]: kcjengr[m]: hey, do you have a Hank Hill mower?
07:09 PM roguish[m]: ride around...
07:10 PM roguish[m]: beer cooler attachment
07:11 PM hazzy[m]: roguish[m]: lol yes! I’m lazy. It’s basically an easy chair with beer holders on wheels
07:12 PM * hazzy[m] uploaded an image: (7105KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/qqYOIgofWWBoqasthDrrljVv/ima_a5f3967.jpeg >
07:12 PM roguish[m]: 😎👍️
07:14 PM hazzy[m]: I usually don’t get to mow these days because the wife likes doing it, but she couldn’t get it started this morning. She forgot to check if the blade PTO was on, which has an interlock with the starter lol
07:21 PM * Thorhian[m] uploaded an image: (1857KiB) < https://libera.ems.host/_matrix/media/r0/download/jauriarts.org/XByirqLZFmURTeEIuKjpVbgx/IMG_6193.jpg >
07:21 PM Thorhian[m]: Made my first purchase from online carbide. Shipped pretty fast.
07:22 PM XXCoder: fancy
07:35 PM _unreal_: wassszzzaaaap
07:35 PM _unreal_: didnt know my phones hot spot was on?
07:37 PM _unreal_: ok so the good news. I finally got the win10 KEY off of that @!#$%#$^@#$%23 laptop and I backed up the reg. as well just to be on the safe side. NOW...... I'm .... ..... .... ..... waiting for ubunto to boot off of the dvd so I can install it.
07:37 PM _unreal_: I'm not even going to bother with loading windows first
07:38 PM _unreal_: for now
07:38 PM _unreal_: Though I really should.
07:38 PM _unreal_: just dont want to wait
07:38 PM _unreal_: thats like 8 hours of install to get win10 back onto that laptop AND to get ubuntu installed. NO thinks
07:38 PM _unreal_: and I'm sweating my ass. off. the AC in the house broke down today
07:38 PM _unreal_: sigh
07:44 PM t4nk_fn: ? 8hours?
07:45 PM _unreal_: you dont do windows you dont know
07:45 PM t4nk_fn: I'm not an expert like you, no ;)
07:47 PM t4nk_fn: MAn... I have this 'extra fast' 3d printing profile, did my print in 38 mins at 100% infill
07:48 PM t4nk_fn: I just checked my regular settings.. at 20% infill.. 1hr47 minutes.. that's crazy
07:48 PM XXCoder: using 100% perimeters or just 100% one of infill types? since most infills is unsuitable for that
07:49 PM t4nk_fn: lol.. look man.. I just print, don't give me that settings rubbish :b
07:49 PM t4nk_fn: thing is.. I don't think I'll ever want to go back to the normal settings
07:51 PM t4nk_fn: not sure about the settings, the 'extra fast' profile had a layer height of .28, and I'm using a .3mm nozzle
07:51 PM t4nk_fn: so somehow I changed that to .2
07:51 PM t4nk_fn: I really don't know what I'm doing.
07:53 PM t4nk_fn: I'm using cura btw
07:54 PM XXCoder: usually use prusaslicer myself
08:01 PM Tom_L: Thorhian[m], i've had good luck with them
08:02 PM Thorhian[m]: Been watching their products on ebay for quite a while.
08:03 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/cutters/Lakeshore_vs_Online1.jpg
08:03 PM Tom_L: i tried both and they are quite equal
08:03 PM Tom_L: online is a little cheaper
08:04 PM Tom_L: maybe a little more twist on lakeshore but they perform quite the same
08:05 PM Tom_L: i have several of their threadmills as well
08:07 PM Thorhian[m]: When I can step up to more pricey tools I plan on buying more from Helical, especially their endmills with chip breakers. Helix angle is just a variable, it affects cutting performance in different ways. A lot of tool makers will provide the same/similar tool with different helix angles.
08:08 PM Tom_L: i'm not sure but i think they're both variable flute
08:08 PM Tom_L: which cuts down on chatter etc
08:08 PM Tom_L: i haven't tried the chip breakers yet
08:12 PM Thorhian[m]: Yeah pretty sure they are. However, I think they still have an average angle overall don’t they?
08:45 PM t4nk_fn: XXCoder, ... you can always take it just that one little step too far.. https://cdn.thingiverse.com/renders/13/14/93/50/c8/2015-12-20_18.28.31_preview_featured.jpg
08:46 PM XXCoder: i know of that print model yeah. though stripped on head without protection is eh
08:47 PM t4nk_fn: I wish there were some better way to attach the leads
08:56 PM gywilo[m]: I'm trying to install preempt RT... Im using synaptic package manager with linux-image-rt-amd64. Getting the following error:
08:56 PM * gywilo[m] uploaded an image: (4374KiB) < https://libera.ems.host/_matrix/media/r0/download/jauriarts.org/EgRQzvlDNTVDUUjFongJGWLs/IMG_20220723_185459.jpg >
08:58 PM gywilo[m]: What am I doing incorrectly? How to fix?
09:32 PM gywilo[m]: hmm, okay, I resolved this issue, I now see 'SMP PREEMPT_RT Debian 5.10.127-1 (2022-06-30) with 'uname -v' in command line.
09:32 PM gywilo[m]: BUT, now my resolution, GPU software driver problem is back... because kernel is older 5.10 version instead of 5.18 version...
09:32 PM gywilo[m]: I think this is why I might need to use the build.bot approach. will take a look at that
10:24 PM Tom_L: there wasn't a newer kernel listed?
10:35 PM gywilo[m]: where would I look? I was following these instructions:
10:35 PM * gywilo[m] uploaded an image: (134KiB) < https://libera.ems.host/_matrix/media/r0/download/jauriarts.org/LMoyAodbuzQeUrXUwJwGLSDv/unknown.png >
10:35 PM gywilo[m]: http://linuxcnc.org/docs/html/getting-started/getting-linuxcnc.html#_installing_linuxcnc
10:37 PM gywilo[m]: alternatively, when following these instructions:
10:37 PM gywilo[m]: http://buildbot.linuxcnc.org/
10:37 PM gywilo[m]: I run into a dead end:
10:37 PM * gywilo[m] uploaded an image: (3578KiB) < https://libera.ems.host/_matrix/media/r0/download/jauriarts.org/QdfGMpMpQdnwWgQGQoiFJtNI/IMG_20220723_201518.jpg >
10:38 PM * gywilo[m] uploaded an image: (7246KiB) < https://libera.ems.host/_matrix/media/r0/download/jauriarts.org/jpmCegLQywyPgHfGjHdIFbNE/IMG_20220723_203805.jpg >
11:28 PM -!- #linuxcnc mode set to +v by ChanServ