#linuxcnc Logs
Apr 25 2020
#linuxcnc Calendar
12:30 AM tjtr33: interesting guidelines for writing critical safety code from NASA
12:36 AM tjtr33: http://spinroot.com/gerard/pdf/P10.pdf
12:36 AM tjtr33: found while reading about code used in ventilators
02:57 AM Loetmichel: hmpf. just arrived at the company... corona "holidays" my ass... the governments order shielded conference systems like crazy... and all to be delivered yesterday :-(
03:04 AM sensille: shielded, but hosted by google?
03:04 AM XXCoder: you think google on conference?
03:04 AM XXCoder: here is more than one company ya know ;)
03:05 AM XXCoder: *there
03:15 AM Tom_L: morning
03:25 AM Loetmichel: sensille: no idea what they use as software. we only do hardware
03:38 AM Loetmichel: sensille: big PC, 42" TFT, 10" tft with touch for operation commands, two 24" auxillary TFTs, a microphone/speaker "hockey puck", 2 cameras. All shielded against tempest attacks. 35 systems that should have been ready for delivery yesterday. Any questions?
06:23 AM andypugh: Loetmichel: https://hackaday.com/2020/04/24/gpu-turned-into-radio-transmitter-to-defeat-air-gapped-pc/
06:49 AM Loetmichel: andypugh: indeed, i know. thats why we shield the boxes ;)
06:58 AM Loetmichel: <- Slaving away at the company... *drill, tap, countersink, screw* ... only 108 M3*6 screw so far though... http://www.cyrom.org/palbum/main.php?g2_itemId=17782&g2_imageViewsIndex=1 and whenever the wirsts get tired i switch to doing CAD and making the mill file for the dog house on the back of the screen: http://www.cyrom.org/palbum/main.php?g2_itemId=17779&g2_imageViewsIndex=1 (bad when
06:58 AM Loetmichel: your mill is to small for the parts and you have to do "puzzles")
06:59 AM jthornton: morning
06:59 AM Loetmichel: mornin'
07:02 AM Tom_L: morning
07:03 AM Tom_L: sunny and 49°F
07:11 AM andypugh: Loetmichel: I thought that one was intresting, though, using the GPU as an ad-hoc WiFi transmitter, rather than just scraping the screen contents.
07:12 AM Loetmichel: andypugh: i know a tool that uses the CPU load to modulate MP3 music onto the PSU and you can use a commercial MW radio to listen to it loud and clear
07:12 AM Loetmichel: its a bit scary sometimes
07:12 AM Loetmichel: tool as in small software program
08:51 AM jymmmm: morning, Currently 63F, with a high of 78F today, WOOHOO
09:21 AM Loetmichel: *GNAHHH* JUST in time noticed that i have to mill the part from the INSIDE... THAT would have been bad, have only enough material for one try left... *Mirror* *generate new GCODE* *send to mill*
09:37 AM jymmmm: Loetmichel: Pffff, aluminum foil and spray adhesive, done.
09:38 AM jymmmm: Loetmichel: if you want to get fancy, TWO layers of aluminum foil =)
09:38 AM heath: anyone here happen to know how a pcb manufacturer determines the order in which gerber files are processed/translated?
09:45 AM rmu|w: heath: the name
09:51 AM heath: back copper, back mas, back paste, back silkscree, cuts. yeah, that makes sense, and now I feel silly
09:51 AM heath: mask*
10:01 AM Loetmichel: heath: "Dont worry, It happens to all of us. First to the dumbest!" Would my ex boss told you now ;)
10:03 AM heath: Loetmichel: nice. storing that one away for the next time someone goofs at work :)
10:46 AM _unreal_: damn.. I got an amazing new set of stepper motors STAINLESS stepper motors BUT I cant use them on my machine unless I upgrade my motor controller :(
10:46 AM _unreal_: What do I do.. what do I do.....
10:46 AM _unreal_: heh
10:46 AM _unreal_: My home machine is running on unipolar motors. these new one's are bipolar :(
10:47 AM _unreal_: I was hopping they would be a 6 wire NOPE
10:49 AM Loetmichel: if its still running at unipolar drivers its probably due for an upgrade anyways
10:53 AM jymmmm: PROZAC TO THE RESCUE!!!
11:55 AM unterhaus_: I got my mini keyboard, it's about 8 inches across. Wasn't prepared for that
11:57 AM jymmmm: unterhaus_: pic?
11:57 AM jymmmm: unterhaus_: with something for scale
12:07 PM unterhaus_: it's actually less than 6" across. It's fine for what I am going to use it for, I just didn't expect it to be this small
12:08 PM unterhaus_: https://photos.app.goo.gl/CYZVk5TRPPLCGhom6
12:15 PM jymmmm: Ah, I've seen those. Mine is even smaller =)
12:15 PM jymmmm: Talk about surviving on a desert island in the tropics... https://www.youtube.com/watch?v=vM5ePOQcw-g
12:17 PM Tom_L: _unreal_, thought you might be interested in this site: https://powge.aliexpress.com/store/702327
12:27 PM Loetmichel: re at home btw. aaand have to go to work tomorrow again. didnt finish the project :-(
01:03 PM _unreal_: looking
01:05 PM _unreal_: interesting
01:06 PM _unreal_: unterhaus_, aawwww... its adorable
01:07 PM Rab: _unreal_, got a model # for those stainless steppers?
01:14 PM _unreal_: si
01:14 PM _unreal_: 24hs3003
01:15 PM _unreal_: two of those
01:15 PM _unreal_: and a smaller one same nema
01:15 PM _unreal_: and as I said stainless LOL
01:16 PM _unreal_: THEY ARE ABOUT 300oz/in
01:19 PM Rab: _unreal_, nice find. What's the torque rating on your unipolar motors?
01:30 PM _unreal_: not sure
01:30 PM _unreal_: likely NOT as much
01:30 PM _unreal_: and not as fast
01:30 PM _unreal_: :(
02:03 PM jymmmm: Ok, this is cool... https://www.youtube.com/watch?v=4qdZ4qFT4SA
02:44 PM SpeedEvil: https://i.imgur.com/mdQ7xx6.jpg
02:45 PM jdh: metashark
02:56 PM XXCoder: cool
02:56 PM XXCoder: hammer-hammerhead shark
02:57 PM skunkworks: cradek: seems to be acurate up to 3000rpm...
03:00 PM skunkworks: i actually dont know what rpm the encoder is good for
03:01 PM skunkworks: probably should see if i can find it out
03:04 PM BombaSexy: hello can someone help me please i have an issue installing kali linux on my laptop, so when i hit install instead of showing me a menu to chose my language and region it just shows me lines and dots, does anyone know how to solve that, sorry if my english is bad
03:12 PM Deejay: gn8
03:12 PM BombaSexy: ?
03:32 PM _unreal_: skunkworks, what is your max?
03:32 PM _unreal_: rpm
03:33 PM Rab: BombaSexy, are you choosing the text or graphical installer? https://cdn.educba.com/academy/wp-content/uploads/2019/06/Kali-Linux-1.png
03:33 PM BombaSexy: i tryed both
03:33 PM skunkworks: _unreal_: 10k
03:33 PM skunkworks: in high range
03:33 PM BombaSexy: Rab: it didnt work either way
03:34 PM Tom_L: skunkworks, my guess was 3k rpm :)
03:34 PM Rab: BombaSexy, does the live image work?
03:35 PM Tom_L: how would you know if it fails? spindle runaway?
03:36 PM BombaSexy: Rab: no
03:37 PM andypugh: BombaSexy: It’s getting deep, but you can edit the grub command line of the installer (probably) and try ti choose a supported graphics mode.
03:37 PM andypugh: The Debian installers let you press “e” at the first menu to do that.
03:37 PM BombaSexy: andypuch: how?
03:38 PM BombaSexy: andypugh: how?
03:39 PM andypugh: How do you press the “E” key? I would assume with a finger.
03:39 PM skunkworks: Tom_L: it was displaying the correct rpm compared to the rpm tester
03:40 PM BombaSexy: andypugh: ill try thanks
03:41 PM andypugh: BombaSexy: Might be some help here: https://askubuntu.com/questions/54067/how-do-i-safely-change-grub2-screen-resolution
03:41 PM BombaSexy: thanks a lot
03:42 PM andypugh: But, forget all the grub.cfg stuff mentioned there. You want to edit the grub command line directly at the point of booting]
03:42 PM sensille: Loetmichel: i can't use the normal 2 flute cutter for face milling, right? do you use a facemill for al on the 6040z?
03:42 PM Loetmichel: you can if it cuts over middle
03:43 PM andypugh: BombaSexy: Something like quiet splash gfxmode=1024x768
03:45 PM skunkworks: certainly is a lot quieter with the 20k encoder :)
03:46 PM Tom_L: i bet
03:48 PM Rab: andypugh, my USB analog joystick is working great for jogging with the halui 'joint' pins. I haven't tried the axis pins.
03:48 PM Rab: http://reboots.g-cipher.net/joystick.jpg
03:48 PM andypugh: Well, you probably need them as soon as you home.
03:48 PM sensille: Loetmichel: "Zentrumsschnitt"
03:49 PM Rab: Yeah, my setup is very primitive until I build some hardware to NOR the physical limit outputs, so there is no real homing or limits yet.
03:50 PM sensille: as i can plunge with it, it is probably the wrong one
03:52 PM Rab: sensille, I believe a successful plunge cut would mean it has to be center-cutting.
03:52 PM Tom_L: yup
03:53 PM Tom_L: i'd venture to say most modern cutters probably are anyway but it's always good to check
03:56 PM sensille: ah, ok. would the result of a specialized facemill also look better, or is it just faster because it is larger?
04:00 PM Rab: Does anybody know about the protocol or device class of the XHC-HB04 or similar USB pendants? I have a nice Matsuura-branded encoder I would like to use as an MPG, seems like the simplest way (in my case) would be to make a little USB peripheral that reads the encoder and mimics a supported pendant.
04:02 PM Tom_L: andy has been working the newer driver for those
04:02 PM Tom_L: i forget the model
04:02 PM Tom_L: but there is a comp already for that one
04:02 PM andypugh: Rab: alkabal is your man: https://forum.linuxcnc.org/38-general-linuxcnc-questions/35913-xhc-whb04b-6-linuxcnc-not-working?start=70#161888
04:03 PM andypugh: Rab: What’s your other hardware?
04:03 PM Rab: andypugh, I have an old parport bob.
04:04 PM andypugh: Ah, OK, so a 7i73 is not really an option.
04:04 PM Rab: It seems like adding another parport card would let me hook the MPG straight into HAL. But I already have a USB peripheral for the joystick, so I would just piggyback another device onto the firmware.
04:05 PM Rab: andypugh, not at the moment, perhaps later. ;)
04:06 PM Rab: Looks from some dmesg snippets people posted that the XHC-HB04 might enumerate as a generic HID.
04:07 PM skunkworks: Rab: what kinda machine? if it is small enough that it cant hurt itself.. 1 home switch per axis and soft limits..
04:08 PM Rab: skunkworks, that's kinda the plan. But I would like to have every limit triggering some kind of error, at least.
04:10 PM XXCoder: interesting. didnt know starret made stuff besides precision measure stuff. or maybe different company? https://youtu.be/Tgi-ON9HxlU
04:10 PM XXCoder: or maybe company change focus
04:16 PM Rab: "In 1878 Laroy S. Starrett invented and patented the first combination square, and in 1880 he founded the L.S. Starrett Company in Athol, MA in order to produce it and other precision tools."
04:16 PM XXCoder: that food chopper was made in 1860s
04:16 PM Rab: They claim 1865 for the chopper, so I guess LSS was flailing around innovating various machines until he found a market in metrology.
04:17 PM XXCoder: interesting
04:17 PM Rab: https://en.wikipedia.org/wiki/L._S._Starrett_Company
04:17 PM Rab: Interesting note about alleged CMM fraud in 2002.
04:18 PM XXCoder: i wonder what made fault a fraud
04:20 PM Rab: Details apparently in a September 12 2002 Wall Street Journal article, which is probably behind their paywall if it's still online.
04:21 PM XXCoder: https://apnews.com/3bee0a2d1e3a79453aab1352d41f1e81 maybe
04:21 PM Rab: https://www.wsj.com/articles/SB1031788156865187675
04:22 PM XXCoder: it seems to be accusion of substandard builds that made it a fraud
04:33 PM Rab: Oh awesome, not only is the XHC pendant protocol documented here, but somebody's implemented an open-source clone for STM32: https://bitbucket.org/moonglow/openxhc/src/master/
04:33 PM andypugh: Starrett also make tool steel.
04:34 PM XXCoder: steel itself? interesting
04:34 PM XXCoder: makes sense if they want their own tooling steel for tools and such
04:34 PM andypugh: https://www.ebay.com/itm/Starrett-54971-3-8-x2-1-2-x24-498-Low-Carbon-Precision-Ground-NIP/133091293570?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D225074%26meid%3D55de5e4ebfdc4fd282e274f52ae8e465%26pid%3D100970%26rk%3D1%26rkt%3D4%26mehot%3Dnone%26sd%3D133091293570%26itm%3D133091293570%26pmt%3D0%26noa%3D1%26pg%3D2380057&_trksid=p2380057.c100970.m5481&_trkparms=pageci%3A7a5bdf41-873c-11ea-b17a-74dbd1804
04:34 PM andypugh: 7Cparentrq%3Ab342f0641710ad4b226b0ae8ffd74026%7Ciid%3A1
04:34 PM XXCoder: linkbomb!
04:35 PM XXCoder: interesting
04:35 PM andypugh: https://www.ebay.com/itm/174182861275
04:35 PM Rab: andypugh, saw that the other day. I bet the McMaster-Carr precision steel *is* from Starrett, they're pretty opaque about brand details in their catalog.
04:35 PM XXCoder: nah link still works,. tracking would be nonsense tho lol
04:36 PM XXCoder: i do like hand tool rescue. they dont mess with some stuff like casting flash etc since its in orginial.
04:36 PM XXCoder: too many restore people do that and make it glossy useless tool
04:38 PM XXCoder: he does add brass bearings tho so the tool lasts much longer
04:40 PM XXCoder: amazing to see it work as intended
04:47 PM Rab: That's nice. I grew up around letterpress printing equipment, some of it dating back to the 1700s, and most of it having cast iron plain bearings. I've wondered about retrofitting sleeve bearings to worn-out presses to maybe give a few more centuries of life.
04:49 PM Rab: The modern notion of letterpress is to make a very hard impression into the paper, like embossing. Terrible technique and very hard on the type and press.
04:52 PM XXCoder: yeah get tubes of right size then you can drill out shot bearings and press in it
05:29 PM unterhaus: mcmaster carr steel was another brand, last time I bought some
05:30 PM unterhaus: you can ask if it matters though
05:31 PM unterhaus: I'm not sure I believe that starrett can run a surface grinder any better than other companies, in fact I have seen evidence that they might not care too much if you like it
05:32 PM unterhaus: without fiddling around at all, dual core i5 ran latency histogram a lot better than quad core i5
05:37 PM unterhaus: huh, is i5 206A7 a valid chip?
05:38 PM unterhaus: i see, it's a i5-2500
05:38 PM Tom_L: http://www.cpu-world.com/sspec/SR/SR00T.html
05:38 PM Tom_L: cpuid signature 206A7
05:41 PM unterhaus: thanks, I beat you by 3 seconds
05:41 PM unterhaus: so the dual core is about half as fast on benchmarks as the quad
05:42 PM unterhaus: wonder if it's the video driver that's killing latency
05:44 PM unterhaus: what's a good kernel input for isolcpu?
05:56 PM unterhaus: found it quiet splash processor.max_cstate=1 idle=poll isolcpus=1
05:56 PM unterhaus: just about went blind looking for it
06:28 PM skunkworks: wow. using the polygon comp makes it prety easy to line up a hole..
07:01 PM unterhaus: is there a difference in realtime performance between nvidia and AMD?
07:26 PM unterhaus: traffic was a lot heavier today. Where are these people going, nothing is open
07:26 PM unterhaus: navigationally challenged
07:34 PM Thorhian: Does anyone have any experience with indexable end mills?
07:36 PM Tom_L: inserts?
07:36 PM Thorhian: Yeah, they take inserts.
07:36 PM Tom_L: what about them?
07:37 PM Thorhian: I was wondering if you can put them in ER collets (as long as they fit of course), or do you need a special tool holder/taper?
07:37 PM Tom_L: we used them some at my buds shop
07:37 PM Tom_L: typically they are going to be larger endmills i believe
07:38 PM Thorhian: Yes, but they also have some in the 1/2"
07:38 PM Thorhian: range.
07:39 PM Thorhian: https://www.ebay.com/itm/122539103702
07:40 PM Tom_L: a good brand is going to cost considerably more: https://www.mscdirect.com/browse/tn/Indexable-Cutting-Tools/Indexable-Milling/Indexable-End-Mills/Indexable-End-Mill-Sets?navid=12107137
07:41 PM unterhaus: I think you're better off getting a carbide end mill
07:41 PM XXCoder: work have used them in heat strunk collets, set screw type, and even er though last one is uncommon depending on usage. fine for alum, likely not for hard steekl
07:41 PM unterhaus: unless you have a heavy duty machine
07:41 PM Tom_L: the ones we used were quite a bit larger
07:41 PM Tom_L: as well as insert drills
07:42 PM unterhaus: only one I have ever used was a face mill. That was fun
07:42 PM Tom_L: there it becomes more efficient
07:42 PM unterhaus: on a bridgeport
07:42 PM Tom_L: like 3" or thereabouts drills
07:43 PM unterhaus: 3" drill makes me afraid
07:43 PM Thorhian: I was just wondering if using them in larger ER collets was done reliably for the smaller ones (less than 1") in ER 32 and 40.
07:43 PM Tom_L: unterhaus, in titanium
07:43 PM unterhaus: did you ever set any of that on fire?
07:43 PM Tom_L: no
07:43 PM Thorhian: I think I prefer normal end mills, and I'll just have a BT30 arbor for face mills.
07:44 PM Tom_L: smaller carbide aren't that expensive
07:44 PM unterhaus: my experience with the face mill leads me to believe that the Chinese versions probably are fine
07:44 PM Tom_L: until you get into the larger sizes will it be more effective to use inserts
07:44 PM Tom_L: unterhaus, you're not running them >10k rpm either
07:45 PM Thorhian: I wasn't concerned about how good individual face mills or indexable end mills are, I was just wondering if ER collets were appropriate for using them.
07:45 PM Thorhian: At least the indexable end mills, not the face mills.
07:45 PM Thorhian: Like I said, I can just use a arbor on a BT30 taper.
07:45 PM Tom_L: what's the largest ER collet you can get?
07:45 PM Thorhian: ER40 on a BT30.
07:46 PM Tom_L: we were using 40 & 50 taper holders
07:47 PM XXCoder: Thorhian: honestly I would buy set screw bt30s
07:47 PM unterhaus: my thought is that a big ER probably works fine with end mills, but no experience
07:47 PM XXCoder: much stronger than er collet type
07:47 PM _unreal_: wow busy
07:47 PM unterhaus: I have some end-mill specific collets, forget what series
07:47 PM XXCoder: heat strunk even stronger, but you need special machine to insert and remove indexable endmills or other tools
07:48 PM Thorhian: I have seen that most indexable end mills have a flat spot for a set screw, so that would probably be the way to go for those XXCoder.
07:48 PM Tom_L: induction heater
07:48 PM XXCoder: tom yeah
07:48 PM Tom_L: with a round coil
07:48 PM XXCoder: work recently replaced a coil. $5000 ouch just for coil alone
07:49 PM Tom_L: are all your holders that way?
07:49 PM Thorhian: Also, heat shrinking isn't technically complicated, but I bet it costs some money to get equipment to do it repeatably without damaging tools/toolholders.
07:49 PM XXCoder: tom not all but many
07:49 PM XXCoder: 25% maybe?
07:50 PM XXCoder: usually on very hard metal jobs, but theres fiberglass job that use very long and thin heat strunker because any other is too fat
07:50 PM XXCoder: and would hit and destroy part
07:50 PM Tom_L: http://www.leitztooling.com/downloads/thermogrip.pdf
07:51 PM Thorhian: The place I saw heat shrink tooling was on Haimer's website.
07:51 PM Tom_L: any tooling is going to be a considerable investment
07:52 PM XXCoder: expensive system yeah
07:52 PM XXCoder: like I menioned, coil is 5k lol
07:52 PM Thorhian: I winder why so much for an induction coild?
07:52 PM Thorhian: coil*
07:52 PM XXCoder: its big version. that pdf is small version
07:52 PM XXCoder: it can handle 2" tools
07:53 PM XXCoder: or is it 1" hm never went anywhere close to max because i dont run those very hard jobs
07:53 PM Thorhian: Still, I wonder why the heating element of that size would cost so much? I feel like the hardware driving the coil would be the expensive part.
07:53 PM Tom_L: why?
07:53 PM Tom_L: it's just electricity
07:54 PM Thorhian: The coil is typically just copper *shrug*
07:54 PM XXCoder: one at work is adjustable. you twist coil coverings to fit on tool itself
07:54 PM XXCoder: then you power it on for few seconds (it auto shutoffs based on diameter size)
07:54 PM Tom_L: https://www.youtube.com/watch?v=0vL-sArhmkI
07:55 PM XXCoder: then you remove and insert new one before it strunks again. you have to wait 5 minutes before using it again if you fail either
07:55 PM _unreal_: My parts for my home cnc are shipping finally
07:55 PM Tom_L: yay
07:55 PM Tom_L: what are you missing?
07:56 PM Thorhian: My father plans on building an induction based heater for melting down iron and various steels at some point. He is going to need to build that new shed first lol.
07:56 PM _unreal_: really torn about upgrading steppers to bipolar
07:56 PM _unreal_: upgrdes
07:56 PM Thorhian: Also, that's awesome unreal!
07:56 PM _unreal_: fixing my working but 2345@#%$@!#23R42 Z CARRIAGE DESIGN
07:56 PM _unreal_: switching to real rails
07:57 PM _unreal_: not my DIY crap
07:57 PM _unreal_: and going with a BLDC spindle
07:57 PM Thorhian: Like some HGR rails?
07:57 PM _unreal_: 100watt more powerful then what I have but going from DC to BLDC
07:57 PM _unreal_: ya
07:57 PM _unreal_: well cheaper but ya
07:57 PM Thorhian: Noice.
07:57 PM _unreal_: anything is better then my DIY crap
07:57 PM _unreal_: though dont get me wrong my DIY crap is working
07:58 PM _unreal_: my current diy setup as milled a number of aluninum parts
07:59 PM _unreal_: ?
08:00 PM Thorhian: I mean, my current router usies 608 bearings rolling on steel electrical conduit. It works well enough for wood and some aluminum.
08:00 PM _unreal_: got pictures?
08:01 PM Tom_L: what size rails?
08:01 PM Thorhian: It's an MPCNC. You can check it out here: https://www.v1engineering.com/specifications/
08:01 PM _unreal_: thorhian https://drive.google.com/open?id=1E7B1M1jfKI4YuSELQlFCzLoupKhEdofW
08:01 PM _unreal_: for me 15mm
08:01 PM Tom_L: you getting ballscrews too?
08:02 PM XXCoder: mpcnc tough enough to mill alum? interesting
08:02 PM _unreal_: no not going ball screw
08:02 PM _unreal_: https://drive.google.com/open?id=1fnDdmO8oMWCKIWO9yF5W1kBki8bxOwxU
08:02 PM XXCoder: I'd never have thought mpcnc can do it
08:02 PM XXCoder: thor blocks or thin sheets?
08:02 PM Thorhian: Yeah XXCoder https://www.youtube.com/watch?v=zefnrPRvc9Q
08:02 PM XXCoder: theres also new alum extrusions version of mpcnc
08:03 PM XXCoder: cut looks clean, no alum dust
08:03 PM _unreal_: thorhian my machine has cut a number of aluminum parts
08:03 PM Thorhian: My machine has some binding issues on the Z axis, so It hasn't been great. Need to figure it out.
08:03 PM XXCoder: thor mgn is cheap nowdays
08:04 PM XXCoder: double sided tape?
08:04 PM Thorhian: MGN rails? Are you telling me to put them on my MPCNC? Also, yeah Braun is using double sided tape.
08:04 PM XXCoder: some chatter but not too bad
08:06 PM Thorhian: Personally, besides getting an airblast too it, I probably won't buy much more for my MPCNC. It will be used for thinner aluminum and wood while my mill build will be for the heavier mill work.
08:07 PM XXCoder: that machine is enoough to make much nicer cnc router
08:08 PM XXCoder: i do recommand mister
08:08 PM XXCoder: you can build one really cheap, and it uses air pressure
08:08 PM Thorhian: Tools making tools. I always love the concept and practice. Got any good guides for a mister?
08:09 PM XXCoder: maybe https://www.youtube.com/watch?v=CNLuPgr7NdY ? watching now
08:09 PM XXCoder: you could use soda bottles for container, and control air pressure input and output can be metal tube with whatever nozzle
08:10 PM unterhaus: huh, I think I have a mister collecting dust somewhere
08:10 PM Thorhian: I could probably do better with my 3D printer (the soda bodel part).
08:10 PM Thorhian: bottle*
08:10 PM XXCoder: 3d printer yeah why not
08:11 PM XXCoder: lol that guy in video is using verani air flow effect to draw up liquid
08:11 PM XXCoder: also a possibility
08:12 PM Tom_L: https://www.ebay.com/itm/Mist-Coolant-Lubrication-Spray-System-Air-pipe-8mm-Fit-For-CNC-Lathe-Milling/174238360248?epid=583926444&hash=item28916a62b8:g:uZQAAOSwme9ehY0x
08:12 PM XXCoder: bit tricky to balance but yeah
08:12 PM Tom_L: not the best but it does ok
08:12 PM Thorhian: Wow that's cheap.
08:12 PM Tom_L: i'm using one
08:12 PM XXCoder: cheap!
08:12 PM Tom_L: https://www.ebay.com/itm/Mist-Coolant-Lubrication-Spray-System-For-8mm-Air-Pipe-CNC-Lathe-Mill-Drill-KHME/362845590548?hash=item547b485414:g:l0IAAOSwMVdYEiKo
08:12 PM Tom_L: mine has the valve
08:13 PM Thorhian: I order my Nema23 motors a couple of days. Hopefully UPS doesnt get delayed too much.
08:13 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Assembly/Final/Mister1.jpg
08:14 PM Tom_L: Thorhian, what size?
08:14 PM Thorhian: not sure on the length, but they have about 3Nm of holding torque.
08:14 PM Thorhian: Let me double check.
08:15 PM Thorhian: gmail
08:15 PM XXCoder: tom man I loved seeing your pictures as you built that mill
08:15 PM XXCoder: hows it been since?
08:15 PM XXCoder: only thing eh is no covers
08:16 PM Tom_L: yeah it makes a mess but it runs great
08:16 PM Thorhian: Tom_L: These are the ones.
08:16 PM Thorhian: https://www.omc-stepperonline.com/closed-loop-stepper-kit/ye-series-1-axis-closed-loop-stepper-cnc-kit-3-0-nm-424-92oz-in-nema-24-motor-and-driver.html
08:16 PM Thorhian: Sorry they are Nema24s, not 23.
08:17 PM Tom_L: https://www.ebay.com/itm/3pcs-NEMA23-570OZ-IN-5A-3-8-DUAL-SHAFT-STEPPER-MOTOR/253223632606?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
08:17 PM Tom_L: i put those on mine
08:17 PM XXCoder: not bad
08:17 PM XXCoder: was wondering if I should get bigger steppers for my cnc router
08:17 PM XXCoder: ones on it seem to be too weak!
08:17 PM Thorhian: Nice! I got mine because they are also closed loop.
08:18 PM Tom_L: the sherline had 35in oz? to start
08:18 PM Thorhian: Only 35inOz?
08:18 PM Thorhian: Dang.
08:20 PM Tom_L: i've replaced them 3x to where i'm at now
08:20 PM Tom_L: maybe they were 85... i forget
08:20 PM Tom_L: but they were small
08:20 PM Thorhian: After doing some force calculations based on the leadscrews I'm getting and the torque curves of my motors I've determined that 3Nm is plenty for my needs.
08:20 PM Thorhian: sorry ballscrews not leadscrews.
08:21 PM Tom_L: with the drivers?
08:22 PM Tom_L: mine went up $20 since i got mine
08:22 PM Thorhian: Yeah my motors come with drivers.
08:22 PM Tom_L: mine didn't
08:22 PM Tom_L: i got geckos
08:23 PM Tom_L: but i got them before i built the mill
08:23 PM Tom_L: i started my control enclosure while i still was using the sherline
08:23 PM Tom_L: but planned ahead because i knew i wasn't going to keep it
08:25 PM Thorhian: Ah, cool. I've heard of them. Personally I wish Trinamic made beefier drivers.
08:27 PM infornography: The johnny come lately preppers have made it difficult for me to get alcohol, what do I use to clean circuit boards now?
08:28 PM Tom_L: acetone
08:28 PM Thorhian: But yeah, screws in general give you a lot more bang for buck when it comes to torque when it comes to moving things.
08:28 PM Tom_L: everclear would probably do
08:29 PM infornography: ty
08:29 PM XXCoder: infornography: make a still? you wouldnt care if you get myethinl with alchol since you arent drinking it
08:29 PM Tom_L: XXCoder, now how do you know he's not?
08:30 PM Tom_L: we used to use everclear for cleaning negatives
08:30 PM Tom_L: before the digital age
08:30 PM XXCoder: lol dunno :)
08:33 PM Tom_L: XXCoder, you saw the little brass cube?
08:33 PM XXCoder: yeah your last pcture showed it along bigger alum one
08:34 PM Tom_L: i _should_ think of something useful to make
08:34 PM XXCoder: cover for your mill? ;)
08:34 PM Tom_L: i really don't have room
08:34 PM XXCoder: covers*
08:34 PM unterhaus: well, isolcpu makes the quad core run quite well
08:35 PM Tom_L: unterhaus, yes
08:35 PM unterhaus: rtai kernel
08:35 PM XXCoder: not mill covering thing no
08:35 PM XXCoder: rails and screw coverings
08:35 PM Tom_L: ahh
08:35 PM XXCoder: you could make alum slidings
08:35 PM XXCoder: or something like that
08:35 PM Tom_L: i covered them with neoprene which actually works quite well
08:36 PM Tom_L: i got some scraps free from a guy i know that does grain elevator conveyors etc
08:36 PM Tom_L: so what little i gook meant nothing to him
08:36 PM Tom_L: took*
08:37 PM XXCoder: nice
08:37 PM XXCoder: well i got project idea for you
08:37 PM XXCoder: its nothing complex
08:37 PM XXCoder: just C with flat bottom on one side, with hole on top. you could make a stright down tapping tool with that
08:38 PM XXCoder: makes tapping stuff hell of a lot more convient
08:38 PM XXCoder: scale it to your typical project parts size
08:38 PM Tom_L: i made individual ones for 5 & 6mm out of round stock
08:38 PM XXCoder: lemme see if I can find picture of it
08:40 PM XXCoder: cant find
08:40 PM XXCoder: its almost like mini press
08:40 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Assembly/X_Axis_tapped.jpg
08:40 PM XXCoder: but its not used to press things into another
08:40 PM Tom_L: i've used the drillpress for stuff like that before
08:40 PM XXCoder: but it holds tap tool very tightly with rod over foot long
08:40 PM XXCoder: you can easily lift it up and down and tap
08:41 PM Tom_L: doesn't sound very portable
08:41 PM XXCoder: its small enough but not super portable
08:41 PM Tom_L: i since got a good tap holder
08:42 PM Tom_L: general or starret, i forget
08:42 PM XXCoder: i got good set at work. cheapo brand but works well enough. i dont need to hand tap very often
08:42 PM Tom_L: me either
08:42 PM XXCoder: total of maybe 3 parts in entire jobs list needs em due to threaded hole being so short it cant be threaded all way in to bottom
08:43 PM XXCoder: what I do is just grind tip off to flat bottom
08:43 PM Tom_L: you don't get bottoming taps?
08:43 PM XXCoder: it cant be used in machines
08:43 PM Tom_L: right
08:43 PM XXCoder: i vguess company dont wanna buy em
08:43 PM Tom_L: typically they use high helix
08:44 PM XXCoder: cheap enough to just grab machine tap and grind tip off
08:44 PM XXCoder: aha! found
08:45 PM XXCoder: flipping pintrest
08:45 PM XXCoder: how I hate that site
08:45 PM Tom_L: i avoid it
08:45 PM XXCoder: https://www.homemadetools.net/forum/hand-tapping-machine-14021
08:45 PM XXCoder: its small enough you can entirely machine it on your mill
08:46 PM XXCoder: and if you rotate it you can tap any large part
08:46 PM XXCoder: postive is that its extremely rigid. cant get tap in angle by mistake
08:47 PM Tom_L: yeah
08:48 PM Tom_L: i'm usually in a rush and something like that i would just use the drillpress since i'm so limited on space
08:48 PM XXCoder: plans is $7 apparently. honestly you can virtually see how its designed
08:48 PM Tom_L: i wouldn't need any plans
08:49 PM XXCoder: me either, I probably would use freecad to design one out
08:50 PM Tom_L: and portable i'll either use the round stock like you saw with a handle or my air drill. turned down it doesn't have enough torque to snap a tap very easy
08:51 PM Tom_L: not a bad little project though
08:52 PM XXCoder: yeah
08:52 PM XXCoder: its best done with some steel I would say
08:52 PM XXCoder: expecially the base
08:53 PM XXCoder: rod, holder top and tap tool rod probably can be alum?
08:54 PM unterhaus: amazon has a tap collet set that I figure could be adapted for a hand tapper
08:54 PM XXCoder: got link?
08:56 PM unterhaus: fit on a 3/8" socket wrench https://www.amazon.com/gp/product/B0002SRFOE/ref=ox_sc_saved_title_10?smid=ATVPDKIKX0DER&psc=1
08:56 PM XXCoder: interesting
08:57 PM unterhaus: all the hand tappers I like cost outrageous $, even the ones that use a chuck
08:57 PM XXCoder: yeah can be used for tap project I guess? im not sure how standardized bolt holes is looks all different
08:57 PM unterhaus: I guess the ones that use a chuck aren't too bad, but I cant see those working too well
08:57 PM XXCoder: if i wanted quick swap, I would make standardized way to mount them on all of em so its all same size and easy to swap
08:58 PM XXCoder: like say tool 1/8 square or something
08:59 PM unterhaus: the nice hand tappers I have used have quick swap collets of one form or another.
09:00 PM XXCoder: cool :)
09:02 PM unterhaus: the nice parts about that is when you need to tap a different size hole. If you have to tap a million of one size, it doesn't really matter
09:37 PM unterhaus: okay, just noticed latency-histogram said I didn't use isolcpu right
09:37 PM unterhaus: improvement must have been swapping video cards
09:38 PM XXCoder: nice
09:40 PM unterhaus: servo thread is fine, other thread had at least one 58microsecond delay
09:44 PM unterhaus: maybe try again to get the isolcpu to work.
09:47 PM Tom_L: using mesa cards?
09:55 PM zipper is now known as Guest7375
10:31 PM unterhaus: it's weird when one base thread instance is 25microseconds early and another is 25 microseconds late
10:35 PM unterhaus: If I'm using mesa, don't need base thread, right?
10:46 PM Tom_L: right
10:55 PM pink_vampire: Hi
10:56 PM XXCoder: yo
10:58 PM pink_vampire: I need some moral support "Print Time Left: 04:59:46 "
10:58 PM pink_vampire: my day is rolling sloooow
10:58 PM XXCoder: fun
11:08 PM XXCoder: check out this link
11:08 PM XXCoder: https://www.homemadetools.net/forum/hand-tapping-machine-14021
11:08 PM XXCoder: its plan for $7 but honestly you dont need to pay it you can easily design your own
11:08 PM XXCoder: but idea is cool
11:15 PM pink_vampire: I have something similar. https://www.youtube.com/watch?v=0R2v1B9ewhk
11:15 PM pink_vampire: XXCoder: ^
11:15 PM XXCoder: watching
11:16 PM XXCoder: oh man been a while
11:16 PM XXCoder: but video is of cnc machine tapping part? is that part part of similiar tap thing?
11:17 PM pink_vampire: the brass part in the video is for the dial indicator holder
11:18 PM XXCoder: okay but its not hand tapping tool
11:18 PM Tom_L: pretty cool tapping ehh?
11:19 PM pink_vampire: XXCoder: it is hand tapping tool, you just tap the button and there you go.
11:19 PM XXCoder: lol fine its... techinically hand tap machine
11:21 PM pink_vampire: what is the best way to attached something to the ceiling?
11:21 PM XXCoder: what type of ceiling?
11:21 PM XXCoder: and can you modify?
11:22 PM XXCoder: ehst type of object to be hang?
11:22 PM XXCoder: *what
11:22 PM pink_vampire: something about 10-15 lbs
11:24 PM Tom_L: attach or hang?
11:24 PM Tom_L: screw into the joist or a u hangar over the joist
11:24 PM pink_vampire: hang is a better way to describe it
11:24 PM XXCoder: tom depends on what her ceiling is
11:25 PM pink_vampire: 2' x 2' peg board
11:25 PM pink_vampire: I don't have walls in this area
11:25 PM Tom_L: screw to an angle plate and attach the plate to the ceiling
11:26 PM roycroft: get yourself a couple plant hanger hooks with toggle bolts
11:26 PM roycroft: attach them to the ceiling and hang the pegboard from them
11:27 PM pink_vampire: I'm thinking about 2 drywall anchors like this one https://images-na.ssl-images-amazon.com/images/I/31ZB2kdA%2B0L._SX425_.jpg
11:28 PM roycroft: those are similar to toggle bolts
11:28 PM Tom_L: drywall may not hold
11:28 PM roycroft: 10-15 lbs?
11:28 PM roycroft: it will hold easily
11:28 PM roycroft: especially with 2 of those
11:28 PM Tom_L: over how many years?
11:28 PM Tom_L: it will eventually sag and give
11:29 PM roycroft: until the house falls down, if the sheetrock doesn't get wet
11:30 PM roycroft: i have a couple hanging plants in my office
11:31 PM roycroft: i haven't weighed them, but they are fairly large pots
11:31 PM roycroft: the pots are ceramic
11:31 PM roycroft: and they're filled with dirt
11:31 PM roycroft: certainly they're in the 7-12lb range
11:31 PM roycroft: they're attached to the ceiling with toggle bolts
11:31 PM roycroft: and they've been there for over 20 years
11:31 PM pink_vampire: I will try to locate the wood beams in the ceiling?
11:32 PM pink_vampire: I can*
11:32 PM roycroft: or just use those fasteners you linked to
11:32 PM XXCoder: theres cheap bar sensors that would workf or that
11:32 PM XXCoder: far better than single point sensor
11:32 PM roycroft: they will be fine
11:33 PM XXCoder: https://youtu.be/wHQTviHf9Q8
11:33 PM XXCoder: this type
11:34 PM roycroft: or you can just tap the ceiling and find the joists by the change in the sound
11:34 PM XXCoder: sure but that is far more precise
11:34 PM roycroft: but the only reason to find the joists for this application is so you can determine whether to use screws or toggle bolts for the hangers
11:34 PM XXCoder: I used to use 2 hand method but its been discarded for that
11:35 PM pink_vampire: I have that https://i.imgur.com/DEUgtge.png
11:35 PM XXCoder: that single point
11:35 PM XXCoder: bar is far better
11:35 PM roycroft: a magnet also works
11:36 PM roycroft: the sheetrock is held to the joists with nails or screws
11:36 PM roycroft: either of which is likely to be magnetic
11:36 PM roycroft: i'm suggesting ways of doing it with what one might have on-hand, xxcoder
11:37 PM XXCoder: i know
11:37 PM roycroft: a special tool isn't very useful if you don't have it in your hand :)
11:51 PM _unreal_: any of you deal with crypto money?
11:52 PM _unreal_: studs are best found with a magnet
11:52 PM _unreal_: provided there is drywall
11:53 PM Tom_L: unless it's a commercial building with steel studs
11:54 PM XXCoder: wood nails heh
11:55 PM Tom_L: that didn't make much sense. i'm goin to sleep.
11:55 PM _unreal_: same 1am here
11:56 PM XXCoder: lol night
11:56 PM pink_vampire: good night
11:56 PM pink_vampire: here we are making pancakes!
11:56 PM XXCoder: pink it sucks that mail is so slow nowdays
11:56 PM XXCoder: im still waiting for wires I plan to test 2 wire ttl with
11:57 PM XXCoder: and after 6 weeks, my last 2040 pair finally arrived