#linuxcnc Logs
Dec 22 2021
#linuxcnc Calendar
12:53 AM Deejay: moin
01:01 AM t4nk_freenode: top of the moaning to you too, Sir!
01:01 AM XXCoder: its pre-night for me lol
01:01 AM * t4nk_freenode grabs a coffee
01:08 AM randy: morning
01:17 AM Deejay: 8 am here :)
01:19 AM randy: 8:15 CET :)
01:19 AM Deejay: yep
01:19 AM randy: your "moin" has betrayed you :p
01:20 AM randy: maybe i should use "servus" the next time.
01:52 AM Bleepshop: t4nk_freenode: I grew up with pre-1970 Caddies, back when they made them out of recycled Sherman tanks. LOL
03:11 AM wonderer: can i load this ona raspberry pi?
03:13 AM wonderer: am looking at page 9. of http://linuxcnc.org/docs/2.8/pdf/LinuxCNC_Getting_Started.pdf
03:13 AM wonderer: but dont see confirmation unles the arms build is for sure an rpi build?
03:15 AM wonderer: ah page 3. shows
03:15 AM wonderer: • 700 MHz x86 processor (1.2 GHz x86 processor recommended) or Raspberry Pi 4 or better.
03:18 AM sadara: Does anyone here know if dual/triple monitors is possible with linuxcnc? I noticed that Xinarama is a build requirement, bat a (admittedly fast) skim through the docs didn't turn up anything
03:19 AM sadara: Specifically, I would like to use a custom gmoccapy on one screen, a different gmoccapy screen on a second screen, and a third screen for the backplot
04:51 AM JT-Cave: morning
04:51 AM Tom_L: morning
04:52 AM Tom_L: 30F
04:53 AM JT-Cave: same
06:10 AM robinsz: So, the only "issue" seems to b the occasional "unexpected realtime delay" message ... as its running steppers on the Mesa card over ethernet, can I assume that raising the cycle time from .010 to say .05 isnt going to be a problem
06:40 AM JT-Cave: the important thing to know about "unexpected realtime delay" message is it's only displayed once per session even if it's constantly getting realtime delays
06:41 AM JT-Cave: so install my 7i96 Configuration Tool and check your PC with it as well as run a latency test with latency-histogram --nobase
07:05 AM robinsz: yep, I cleared it and restarted
07:05 AM robinsz: running with cycle time at .050 ...
07:33 AM robinsz: I do love how the cycle time is set as .010 and the task is set as 1000000 ;) that really needs sorting to put them in the same units ...
07:33 AM robinsz: but we've talked about that many times already
11:19 AM roguish[m]: f.1.1.1sadara multiple monitors are OS dependent. short answer: yes. I have 2 monitors. one is touch screen, other is not. (setting up a single touch screen in a multiple config is tricky.....but possible)
11:37 AM roycroft: have any of you used a counterbore that has interchangeable pilots without a pilot?
11:37 AM roycroft: s/has/takes/
12:01 PM Tom_L: i have a couple but always used the pilot
12:02 PM Tom_L: at least i think these are what you're referring to
12:02 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/cutters/counterbore1.jpg
12:12 PM Tom_L: if you're gonna do that, just use a center cutting endmill
12:12 PM roycroft: that won't work
12:12 PM roycroft: i'm going to downsize the fasteners, i think
12:12 PM roycroft: a counterbore drill with pilot for 3/8" holes is over $100
12:12 PM roycroft: i can get one for 5/16" holes for about $20
12:12 PM Centurion_Dan1 is now known as Centurion_Dan
12:12 PM roycroft: and i think 5/16" fasteners will work, especially if i use fine thread
12:12 PM Tom_L: https://www.amazon.com/3-8-Interchangeable-Pilot-Counterbore/dp/B008RYMRQQ
12:12 PM roycroft: i'm concerned about too much wiggle and chatter if i don't use a pilot
12:12 PM Tom_L: that's why i suggested the endmill
12:12 PM roycroft: that's better than the pricing i've been finding, but i still need the pilot
12:14 PM roycroft: 5/16" leaves a little more meat on the part after the counterbore anyway - i don't like counterboring more than halfway through the thickness of a part
12:14 PM robinsz: Why does the desktop link to LinuxCNC ask me if I want to run it when I click on it? This is not normal
12:14 PM robinsz: none of my other machines do that, just thie new Rpi one ...
12:14 PM roycroft: you're probabaly using gnome, which wants to be just like windows
12:15 PM roycroft: and windows always wants you to ask your mom before you do anything :)
12:16 PM robinsz: does the rpi version use Gnome and the standard installl use something else?
12:18 PM robinsz: is it possible to change this annoying behaviour?
12:19 PM roycroft: i was being facetious there
12:19 PM robinsz: and welcome to my /ignore
12:19 PM roycroft: but to answer you directly: i don't know what desktop manager is on the rpi distro
12:20 PM roycroft: but for stock debian, there is no "standard" desktop manager, as i was attempting to tell you yesterday
12:20 PM roycroft: you choose what you want at install
12:20 PM roycroft: and if that triggers your /ignore, irc may not be the best venue for you
12:32 PM XXCoder: honestly
12:32 PM XXCoder: I'm not sure why rpi uses gnome. I'd use xfce
12:33 PM XXCoder: much lighter, important on rpi
12:34 PM roycroft: i think andypugh did the rpi distro
12:34 PM XXCoder: ok
12:34 PM roycroft: ask him when he's around some time
12:34 PM roycroft: i had other reasons to roll my own
12:34 PM XXCoder: gnome might be default on rpi images before modded to be realtime and linuxcnc
12:34 PM roycroft: yes, he may have started with a raspian distro
12:35 PM t4nk_freenode: CaptHindsight[m], is FreeCAD Path on gitter working for you at the moment?
12:35 PM Tom_L: roycroft, a reamer if you don
12:35 PM Tom_L: t have that much to remove
12:36 PM Tom_L: they're generally long shanked
12:36 PM XXCoder: yeah. reamer is usually extremely long
12:36 PM Tom_L: also not bottom cutting..
12:36 PM roycroft: i just bought a counterbore for 5/16" holes
12:36 PM roycroft: i got an interstate, which is decent quality import, for $14.95
12:37 PM roycroft: and as i said, 5/16" is a better fit anyway, as i don't have to bore as deep
12:37 PM Tom_L: k
12:37 PM roycroft: i'm fine with 6 5/16"-24 bolts for that
12:37 PM roycroft: that will be plenty strong
12:38 PM roycroft: and i may add some alignment pins so it can't twist
12:38 PM Tom_L: were they 6mm before?
12:38 PM roycroft: they did not exist before
12:38 PM Tom_L: you got room for alignment pins too?
12:38 PM Tom_L: oh
12:38 PM Tom_L: the picture says they did
12:38 PM roycroft: i added the feature already
12:39 PM roycroft: but the mounts come with plain flanges
12:39 PM Tom_L: i want to find a thin keyslot cutter i can use as a thread relief in the bottom of a hole
12:44 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/extinguisher_nut/Pressure_test_cap3.jpg
12:44 PM Tom_L: for things like that
12:56 PM roycroft: i still have not figure out how i'm going to fixture that mounting bracket on my mill for squaring it up
12:56 PM roycroft: it's too big for my vise
12:56 PM roycroft: i'll have to be creative
12:57 PM Tom_L: yep, there are 2 sides to a box...
12:57 PM Tom_L: inside and outside
12:57 PM Tom_L: i try to think on the ouside usually
01:00 PM roycroft: when one is working with small machines thinking outside of the box is often necessary
01:05 PM t4nk_freenode: might any one of you have a probe data file generated with linuxcnc handy to show me?
01:06 PM t4nk_freenode: I'd like to have a gander at the format
01:18 PM t4nk_freenode: ah, never mind I guess..
01:18 PM t4nk_freenode: just 'x y z' so it seems
01:35 PM roycroft: i think i'm going to upgrade my imac to an ssd drive as soon as my macbook pro comes back from repair
01:35 PM roycroft: it's painful having to wait 5 minutes for a virtual machine to resume
01:36 PM roycroft: i don't know why apple decided that on an otherwise decently performing machine they would install a 5400rpm hard drive
01:38 PM t4nk_freenode: ;) because it was the year 1835? :b
01:38 PM roycroft: don't get me wrong
01:38 PM roycroft: i still use 5400rpm drives all the time
01:38 PM robinsz: XXCoder, looks like it uses lxde, sorted it now, juts put it in the appropriate place lxde likes its startup items
01:38 PM roycroft: for a nas they are great, because they run a lot cooler than faster ones
01:39 PM roycroft: but i stripe drives in a nas, so i make up for the slower platter speed by accessing multiple platters at a time
01:39 PM roycroft: this machine has a single internal drive
01:39 PM roycroft: an ssd should make disk io about 80x faster
01:40 PM robinsz: so, winding the base cycle time up to .050 seems to be have stopped it moaning about realtime latency
01:40 PM robinsz: is there any particular disadvantage? im running a Mesa card over etherrnet, so all the "heavy lifting" is done over on the mesa card
01:42 PM robinsz: I know with steppers and parport, you need a fast base time to get reasonable pulse rates
01:43 PM robinsz: but with all the pulse gen being outboard, does it really matter setting the base time at .050?
02:00 PM XXCoder: interesting idea https://www.thingiverse.com/thing:5171097
02:04 PM t4nk_freenode: I always wonder how well those would work.. since it's plastic and all
02:05 PM t4nk_freenode: I set my 4th axis project aside for a while, but I contemplated trying it out
02:05 PM t4nk_freenode: but I didn't want to 'waste the filament'
02:06 PM XXCoder: indeed
02:08 PM XXCoder: theres mostly printed lathe project somewhere too
02:11 PM roycroft: i just ordered some more filament
02:11 PM roycroft: i had some black pla that has always been a bit fussy
02:11 PM t4nk_freenode: me too ;)
02:12 PM roycroft: i'd have to experiment with temps every time i used it
02:12 PM roycroft: and every time i printed with it i would remove it from the printer, put it in my converted food dehydrator to make sure it's godo and dry, and store it in a vacuum sealed bag
02:13 PM roycroft: when i loaded it up yesterday it just made a stringly, clumpy spaghetti and meatballs mess
02:13 PM t4nk_freenode: I haven't had any problems with moist yet
02:13 PM t4nk_freenode: but I'm scared of it
02:13 PM roycroft: i yanked it out of the printer, loaded a spool of atomic filament, and made beautiful prints
02:13 PM t4nk_freenode: that's why I don't open some other colors
02:13 PM t4nk_freenode: because I probably wouldn't use it
02:13 PM roycroft: i am fortunate to own a chamber vacuum sealer
02:14 PM t4nk_freenode: it's also part of the reason I haven't printed an emergency stop yet
02:14 PM roycroft: so i can dry the filament for a few hours in the modified food dehydrator, then put it immediately in a vacuum bag an suck all the air out of the bag and seal it
02:14 PM roycroft: it works great
02:14 PM roycroft: i don't think the problem with the filimant i was using was moisture
02:14 PM roycroft: i think it's just crappy filament
02:15 PM t4nk_freenode: but on the other hand.. I have this spool on my printer all the time, goes unused for months in a row
02:15 PM t4nk_freenode: and no problems yet
02:16 PM roycroft: it's made by overture, which gets good ratings, but i don't think i've made a single successful print with it
02:16 PM roycroft: and i've tried all sorts of settings to get it to work
02:16 PM t4nk_freenode: and, I saw some vids on yt where they had a whole wall full of open spools
02:16 PM roycroft: if your environment is dry, hanging spools on the wall like that might be ok
02:16 PM roycroft: if you are able to dry right before every use, that might also be ok
02:17 PM roycroft: where i live, the humidity is really high in the winter
02:17 PM t4nk_freenode: yeah, the quality can be pretty bad.. tried some basic from ama, but that gave bad results for one, and it kept tangling up
02:17 PM roycroft: and even if i can dry it out, it seems that keeping it from absorbing much moisture in the first place is good
02:17 PM roycroft: so i dry it after use and then vacuum seal it
02:17 PM roycroft: it also means that when i want to print something i don't have to wait 4 hours for the filament to dry before i can start the print
02:18 PM roycroft: all my spools are always ready to go
02:20 PM roycroft: but a chamber vacuum sealer big enough for filament spools costs about $1k these days, so if you don't already have one that you bought in the before times, it's probably not an option for most folks
02:21 PM roycroft: and if you use a seal-a-meal thing, you'll spend more money on vacuum bags than on the filament itself
02:21 PM roycroft: those clothes storage vacuum bags that you suck the air out of with a vacuum cleaner might work ok
02:21 PM roycroft: if you get some dessicant packs to toss in the bag with the filament
02:22 PM roycroft: they're not cheap, but they're reusable
02:25 PM roycroft: https://www.vacmasterfresh.com/vacmaster-vp210-maintenance-free-chamber-vacuum-sealer/
02:25 PM roycroft: that is the newer version of what i have
02:25 PM roycroft: but mine cost about $600 when i got it a few years ago
02:26 PM roycroft: i got it for food and hops storage
02:26 PM roycroft: it's great if you like to do sous vide, btw
02:27 PM roycroft: but i don't think i'd have spent $1k on it - $600 was pushing my limits
04:23 PM roycroft: good news
04:23 PM roycroft: i just found out that we're not working on friday, and i have a comp day that i'm taking on monday, so i'll have a 4 day weekend after tomorrow
04:23 PM XXCoder: nice
04:24 PM roycroft: it's good news for me, at least
05:25 PM roycroft: it's looking like seattle and portland might have a white christmas this year
05:25 PM XXCoder: pretty rare
05:25 PM roycroft: 1%, according to the national weather service
05:26 PM roycroft: actually, not nearly that rare in seattle, according to what i'm reading right now
05:27 PM XXCoder: tacoma here it snows each year, maybe 2-3 snow days
05:27 PM roycroft: it says that seattle had a white christmas in 1909, 1915, 1944, 1965, 1990, 2007, 2008, and 2017
05:27 PM XXCoder: totaling to zero snow surface surface most times, maybe 1-2 cm otherwise
05:27 PM roycroft: records go back to 1892
05:27 PM XXCoder: 2 years ago we had 8 inches which is dang rare
05:27 PM roycroft: er, 1891
05:27 PM roycroft: so 8 in 133 years
05:28 PM roycroft: that puts it at just over 6%
05:33 PM roycroft: most of the time when we get snow it's in early november or late march/early april
05:33 PM roycroft: and we don't usually get very much, but it's very wet and heavy, and the ground is usually saturated already, so when it snows it causes major damage - trees and utility poles down all over the place
06:03 PM roguish[m]: that's the only way the grid ever gets worked on......
06:03 PM XXCoder: 100% chance theres power issues each fall here lol though most times its just flickering
06:03 PM XXCoder: when rain and wind season starts
06:03 PM XXCoder: but past that we very rarely have blackouts
06:04 PM XXCoder: 2 years ago fall was pretty nasty, we had blackout for couple hours
06:04 PM XXCoder: longest we ever had for over a decade
06:09 PM XXCoder: watching a restore of soviet watch, and weird enough it has years.
06:09 PM XXCoder: from 80s to 90s
06:09 PM XXCoder: which means its been useless for decades lol
06:09 PM XXCoder: who needs years too
06:09 PM XXCoder: https://youtu.be/y6WtM1esdko
07:52 PM mrec: does linuxcnc support tool table meta data in g-code files?
08:42 PM Tom_L: mrec, explain?
09:00 PM mrec: Tom_L: I'm working with freecad, and freecad has its own tool table
09:00 PM Tom_L: yes
09:01 PM mrec: so when doing CAM I assign the tools which I want to use
09:01 PM Tom_L: i made my cad tool table match the one with lcnc
09:01 PM mrec: I don't have enough holders for all my tools
09:02 PM mrec: so I need to set them up every time (and I measure manually before starting the process)
09:02 PM Tom_L: i have plenty of holders but i do preset them
09:02 PM mrec: https://forum.freecadweb.org/viewtopic.php?f=15&t=64420
09:02 PM mrec: I have added a small script for exporting the freecad tool table
09:03 PM mrec: Axis in linuxcnc does not really allow to import files? it needs to be done on the filesystem no?
09:03 PM Tom_L: it's just a text file
09:03 PM mrec: yes I know
09:03 PM Tom_L: i manually edit mine sometimes
09:04 PM mrec: I don't want to anymore, I'll just export mine and do the setup on linuxcnc without looking back to FreeCAD
09:04 PM Tom_L: right i don't think axis has anything to do with the tool table, the editor is a separate program
09:04 PM mrec: it should have some import option
09:05 PM mrec: the fixed tool table file is fine, it avoids confusion
09:05 PM Tom_L: write one? :)
09:05 PM mrec: no problem!
09:05 PM Tom_L: i'm not arguing with you on that at all
09:05 PM Tom_L: i just simplified mine by keeping the tools the same in the cad cam and linuxcnc
09:05 PM mrec: I heavily modified freecad to improve the performance of the path stuff
09:06 PM mrec: which CAD/CAM do you use?
09:06 PM Tom_L: it's very old... smartcam
09:06 PM _unreal_: I use desighspark
09:06 PM _unreal_: free and just as powerful of fusion360
09:06 PM Tom_L: it was comparable to mastercam
09:07 PM Tom_L: more popular at the time
09:07 PM mrec: I think freecad is going somewhere give it a few more years and 5 axis will be there too.
09:08 PM Tom_L: it seems to be on the right track moreso than any other free one i've seen
09:08 PM Tom_L: mine does full 3d with 4 axis, i haven't tried 5 and likely won't
09:09 PM mrec: https://i.snipboard.io/vRBl5O.jpg
09:10 PM Tom_L: how is it doing on assemblies?
09:10 PM mrec: good
09:11 PM Tom_L: i recall that being a weak spot
09:11 PM mrec: things can be better of course but it's doing okay
09:12 PM Tom_L: i haven't found a cad yet that is perfect
09:12 PM Tom_L: i've crashed every one i've ever used or tried
09:12 PM Tom_L: but you learn their limitations and work with it
09:13 PM Tom_L: or just bitch and moan...
09:13 PM mrec: freecad too, but crashes are getting much less with the latest versions
09:13 PM Tom_L: i doubt it's any worse than f360 when they released it
09:13 PM Tom_L: they seemed desparate to get that on the market
09:15 PM Tom_L: is that a part you're making?
09:17 PM Tom_L: andy proposed metadata but i don't know how far it got
09:17 PM mrec: I made it already but with poor paths now I understand all of that and I improved freecad quite a bit to make better paths
09:18 PM mrec: the object of the prototype was okay, but I want to make a few more of them so I need better optimized paths
09:18 PM Tom_L: are you a developer or just doing it on your own?
09:18 PM mrec: I'm all in one...
09:19 PM Tom_L: sounds above my paygrade
09:20 PM Tom_L: does it do 'adaptive clearing'?
09:20 PM mrec: yes
09:21 PM Tom_L: seems that's a thing with most new cad packages
09:21 PM Tom_L: mine didn't have that back then
09:21 PM mrec: adaptive makes weak machines usable
09:29 PM * Bleepshop does the Happy Dance...
09:29 PM Tom_L: mrec, this i think was proposed: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ToolDatabase
09:30 PM Bleepshop: I've figured out a way to make a simple float switch fuction as a "Is the coolant pump running?" sensor.
09:31 PM mrec: Tom_L: I have added an export script to freecad, I've never done it like that before I'll test it and see how it will go
09:32 PM Tom_L: do your tools change that much from job to job?
09:32 PM mrec: I do many different things with the machine
09:32 PM Bleepshop: I mounted the bottom half of a plastic jar around the float switch inside the coolant tank with the return line routed to it. Small hole in the bottom so it will slowly drain and a large overflow port in the side.
09:32 PM mrec: mill acrylic, PCBs, Aluminium, Steel
09:32 PM Tom_L: mine has ~50 tools and they are mirrored in the cad
09:33 PM mrec: you probably have the space for it I don't it's a small machine but fully equiped
09:33 PM Tom_L: i have 3 tool tables in the cad, aluminum, steel, brass for various feeds
09:33 PM Tom_L: i don't have 50 tool holders but i keep them in the table none the less
09:33 PM Tom_L: and just use that tool number in the cad
09:34 PM Tom_L: then i know they will be the same
09:34 PM Tom_L: i don't know how freecad manages their tools
09:34 PM Tom_L: mine is a separate file
09:34 PM Tom_L: not bound to the cad file
09:34 PM mrec: I'm new to machining (1 1/2 years) I think I can keep going with freecad and once it grows I can also change my workflow accordingly
09:35 PM mrec: freecad also stores it separately
09:35 PM Tom_L: i used to make a new tool table for every job...
09:35 PM Tom_L: it got old after while
09:35 PM mrec: but I always re-number them 1...N for every job
09:35 PM Tom_L: i don't, my first tool may be 23
09:36 PM Tom_L: but i know that tool will be the same both places
09:38 PM Tom_L: as far as space, i'm very limited on that
09:38 PM Tom_L: small homebrew table top mill
09:39 PM _unreal_: hehe LOL small. your machine is GIANT compaired to mine
09:43 PM roycroft: space, the challenging frontier
09:43 PM mrec: ok the tool table stuff is a tcl script...
09:43 PM mrec: I think I used tcl over 20 years ago
09:43 PM roycroft: these are the voyages of the machine operators with mini-mills
09:44 PM _unreal_: at least my laser etcher is big
09:44 PM _unreal_: mrec, https://photos.app.goo.gl/1ejmwQjHGskbBvob9
09:45 PM roycroft: our continuing mission is to explore strange new parts, to seek out new methods and new materials, to boldly go where no tiny machine has been capable of going before
09:46 PM _unreal_: to boldy mill what has not been milled before
09:50 PM mrec: nice, I thought about installing a small laser onto my cnc to engrave cookies :-)
09:50 PM _unreal_: do it
09:50 PM mrec: later, first I have to get other things done
09:51 PM roycroft: oh my
09:52 PM roycroft: i'm so grateful to have good friends
09:52 PM roycroft: i was just gifted a bottle of wigle rye whiskey by a friend of mine
09:52 PM roycroft: i had no idea such a thing existed - it's an organic rye distilled in pennsylvania
09:52 PM roycroft: and it is absolutely delicious
09:53 PM roycroft: i always thought of pennsylvania as a drought state regarding refreshing beverages, due to its liquor sales and distribution laws
09:53 PM roycroft: but this stuff is really really good
09:55 PM roycroft: it has some slight banana esters, and some really nice phenols notes
09:55 PM roycroft: i detect marshmallo, cinnamon, and a bit of pepper at first taste
09:55 PM roycroft: maybe a little pear
09:56 PM roycroft: already i can say it's one of the best rye whiskeys i've ever had
09:57 PM roycroft: and although it's 90 proof, there's no alcohol heat at all
09:59 PM roycroft: the only negative thing i can say about it so far is that i don't think i can use it to make my favorite rye drinks such as sazarac - it needs to be had neat
09:59 PM Tom_L: the kick is still there
10:00 PM roycroft: this friend comes up with something totally different an unique every year
10:00 PM roycroft: and it's almost always really good, but this is one of the best
10:01 PM roycroft: tom_l: the kick is still there, but when there's this much flavor and balance, it demands to be sipped slowly
10:02 PM roycroft: we had wine with dinner tonight, so i actually poured only about a half shot to taste it
10:02 PM roycroft: when i opened it i had no idea what it was, and was not going to sample it tonight, but then i looked up some reviews online and had to have a taste
10:03 PM roycroft: it's made in pittsburgh
10:04 PM mrec: whow that was not much ... I can already import the file from freecad :-(
10:04 PM mrec: :-)
10:04 PM roycroft: i'll try it with a spash of water tomorrow
10:05 PM roycroft: splash
10:08 PM Tom_L: mrec, in the tool data in freecad if you enter a cut length does it give an error if you try to cut a deeper pocket etc?
10:09 PM Tom_L: ... dude you need a longer tool
10:10 PM mrec: it might not generate a path I think
10:12 PM Bleepshop: Tom_L: You should buy him a drink before dropping news like that on him... ;D
10:12 PM mrec: https://forum.freecadweb.org/viewtopic.php?f=15&t=64420&p=555810#p555810
10:13 PM mrec: it includes the modified tcl script for linuxcnc :-)
10:13 PM mrec: that makes my life easier