#linuxcnc Logs
Jan 25 2020
#linuxcnc Calendar
12:05 AM XXCoder: knew it. hes deburring threads now
12:11 AM XXCoder: to be fair he had to do it, threads was slightly damaged and had burrs
12:11 AM XXCoder: btw https://www.youtube.com/watch?v=grUdsTTRGl4
02:47 AM Deejay: moin
03:14 AM Tom_L: morning
03:27 AM XXCoder: heys
05:22 AM jthornton: morning
05:22 AM XXCoder: hey
06:13 AM selroc: https://youtu.be/ffb_F7Agqv4
06:13 AM XXCoder: jthornton: robertz finally uploaded a new video after 6 months
06:13 AM XXCoder: its a spindle rebuild. hour and half long lol
06:13 AM XXCoder: watched most of it, so interesting
06:14 AM jthornton: who is robertz?
06:14 AM XXCoder: the precision grinder guy in youtube
06:15 AM XXCoder: **robrenz
06:21 AM XXCoder: whats onteresting is that he also reground inside the taper of spindle
06:21 AM XXCoder: and re-finished outside of spindle taper so he could have smoother surface for more tight air cooling or something
06:22 AM XXCoder: it was also to prevent dust and stuff from going up spindle again.
07:33 AM Tom_L: XXCoder, funny he uses waterpump pliers instead of a spanner wrench if he's after the ultimate precision...
07:33 AM XXCoder: yeah that was... not like him
08:08 AM gregcnc: sometimes you don't have the right size, i hack all sort of tools for one time jobs
08:15 AM jymmmm: morning
08:15 AM Javabean: "morning" is the best greeting i have heard thusfar today
08:16 AM gregcnc: what's for breakfast?
08:18 AM jthornton: fresh eggs over easy, bacon, biscuits, sausage gravy
08:18 AM Javabean: meh, i hate overcooked eggs and bacon
08:18 AM Elmo40: no coffee?
08:19 AM gregcnc: ooh bacon
08:19 AM Javabean: i think that coffee is such a standard part of the fare that it doesn't need to be mentioned everytime
08:20 AM gregcnc: username javabean and you have doubt?
08:21 AM Javabean: doubt?? what is there to doubt? not having coffee with your breakfast would be like driving a car without fuel/charge
08:21 AM Elmo40: my car is pedal powerd.
08:21 AM Elmo40: :-P
08:22 AM Javabean: but if you don't have breakfast before leaving, it would still lack fuel
08:22 AM Elmo40: ugh...
08:22 AM Elmo40: how far do you want to go? All the way back? Fine... EVERYTHING IS SOLAR POWERED!
08:24 AM Javabean: lies!!! there is plenty of organizisms at the bottom of the ocean that have their entire ecology powered by geothermal vents from the earth's mantle
08:47 AM Elmo40: true
08:47 AM Elmo40: but with no Sun there is no Life.
08:48 AM Elmo40: as i said. how far back do you want to go in this energy statement? bicycle uses no fuel, i do... but the Sun created all life by creating the Earth. ;-)
08:51 AM jthornton: don't forget the moon, without it...
08:52 AM Elmo40: we would be a wobbly mess. but it didn't create the planet, it is a combination of the Earth and the planet that hit us knocking us into our 'goldilocks' orbit.
08:52 AM Elmo40: hence why it is loaded with Ti and not much of Iron. Came from another planet.
10:36 AM Deejay: re
10:37 AM _unreal_: re?
10:39 AM unterhaus: I have a computer I want to install linuxcnc on, but I'm afraid it will be a pig with 64bit linux. Am I mistaken?
10:44 AM Elmo40: ?
10:44 AM Elmo40: what do you mean pig?
10:45 AM Elmo40: unterhaus, i suggest you max the RAM the board can handle. that is always a good idea.
10:52 AM unterhaus: there is no easy way to run 32, I guess
10:53 AM Elmo40: why would you want to
10:54 AM unterhaus: older machines usually run better on 32, in my experience
10:57 AM _unreal_: just started milling the drive nuts for my new cnc machine
10:57 AM _unreal_: I'm making the nuts from STARboard
10:57 AM _unreal_: I dont get it. this stainless threaded rod keeps making particals
10:58 AM _unreal_: so i cant use the metal nuts. so I'm going to go starboard
10:58 AM _unreal_: my current machine has stainless and I've never had an issue
10:58 AM _unreal_: AND I do have one drive nut on this one that is starboard and its never given me an issue
10:59 AM Elmo40: making particals?
10:59 AM Elmo40: like fine metal shavings?
10:59 AM _unreal_: metal flakes
10:59 AM _unreal_: and the nut starts to gall
10:59 AM Elmo40: stainless nut?
10:59 AM _unreal_: its just wierd but I spent the money to have it turned.
10:59 AM _unreal_: no the threaded rod
11:00 AM Elmo40: unterhaus, that doesn't make any sense to me.
11:00 AM _unreal_: the nut is steel
11:00 AM Elmo40: _unreal_, stainless will gall. it is not a hard material.
11:00 AM Elmo40: why did you get stainless rods?
11:01 AM _unreal_: because its in an area with lots of moisture
11:01 AM _unreal_: or IT WILL be
11:20 AM _unreal_: ?
11:41 AM Elmo40: it will gall with a stell nut
11:41 AM Elmo40: that is how stainless is
11:42 AM Elmo40: worse with a stainless nut
11:43 AM Elmo40: but CNC machines don't use stainless ball screws because it will 'get wet' from coolant.
11:56 AM _unreal_: Elmo40, stell?
12:21 PM unterhaus: dissimilar metals gall less than using the same metal on both parts.
12:21 PM unterhaus: had a bad experience with a teleflex cable because of this
12:22 PM unterhaus: Not really a Dr. Strangelove reference
12:31 PM _unreal_: unterhaus, ya i'm using steel and stainless thread
12:31 PM _unreal_: this stainless I think is low quality? becuase its making metal flakes like crazy
12:31 PM _unreal_: well 4 of the 6 blocks milled
12:33 PM _unreal_: unterhaus, I'm building drive nuts for my new cnc
12:33 PM _unreal_: using starboard
12:33 PM _unreal_: I'm using multi blocks
12:33 PM _unreal_: so I'm making 3" drive nuts
12:33 PM _unreal_: from 3 1" blocks
12:33 PM _unreal_: that bolt together
12:34 PM _unreal_: when I go to tap the main 1/2-13 I'm going put like 2 pieces of paper in as a gap. cut my threads. then remove the paper
12:34 PM SpeedEvil: Seems legit.
12:34 PM _unreal_: that should work a a nice thread tightener
12:35 PM _unreal_: SpeedEvil, I cant see two starboard drive nuts that are 3" long EACH driving on axis wearing fast. especially with lube
12:36 PM _unreal_: veegee, sup
12:36 PM _unreal_: ve7it, sup
12:37 PM ve7it: not much... just making coffee... a little slow this morning
12:39 PM _unreal_: been milling and cleaning the pool, mowing the law etc...
12:39 PM _unreal_: lawn
12:50 PM _unreal_: ve7it, I have most of the through hole parts installed on the 3 drivers. just minus a few that have not arrived yet and the OP amp that I have no idea what the deal is.
12:51 PM _unreal_: freaking hell the power keeps flickering
12:57 PM _unreal_: ARG... plastic building up on the shank again
01:07 PM _unreal_: so I'm thinking about using metal spacers to attach the power drives to a heat sink through the case its going to be mounted into
01:08 PM _unreal_: can anyone see an issue with using steel or aluminum blocks as spacers to make contact with the opamps. and the big heat sink?
01:08 PM _unreal_: we are talking about using ? 1/4-3/8" thick metal.
01:08 PM _unreal_: just to transfer the heat
01:17 PM CaptHindsight: _unreal_: aluminum conducts heat much better than steel
01:20 PM CaptHindsight: _unreal_: https://www.engineeringtoolbox.com/thermal-conductivity-metals-d_858.html
01:21 PM CaptHindsight: the difference is ~4:1
01:21 PM _unreal_: I'm just looking to mount the big heat sink I have outside
01:21 PM _unreal_: and transfering the heat to it with a block in between
01:22 PM CaptHindsight: sure
01:23 PM _unreal_: I'm also trying to figure out how much heat sink I need?
01:23 PM CaptHindsight: well you can use math to figure that out :)
01:23 PM _unreal_: I have a large heatsink.
01:23 PM _unreal_: I "figured" that
01:24 PM CaptHindsight: it starts with the temperature of the die and the ambient temp of the air in the room
01:24 PM _unreal_: My heatsink is 11"x5" with 1" fins and a 1/4" base
01:25 PM CaptHindsight: the device or devices that you want to cool will have a deg C/W rating
01:25 PM _unreal_: the opamps that I'm going to be using are the OPA549
01:25 PM _unreal_: 3x
01:25 PM CaptHindsight: then there is die to case temp resistance
01:26 PM CaptHindsight: then all the temp resistances from the devices package through your spaces to the actual heat spreader
01:26 PM CaptHindsight: spaces/spacers
01:27 PM _unreal_: hence I said I'm trying to figure it out
01:27 PM CaptHindsight: http://www.ti.com/lit/ds/symlink/opa549.pdf
01:28 PM CaptHindsight: page 3 has the Storage Range Thermal Resistance, θJC Thermal Resistance, θJA
01:28 PM CaptHindsight: JC is junction to case resistance
01:29 PM _unreal_: ok last block cuting out finished
01:29 PM _unreal_: CaptHindsight, are you going to be around later tonight?
01:29 PM _unreal_: I need to go back out to the backyard and work on the pool a bit more
01:29 PM _unreal_: trying to get it cleaned up
01:30 PM _unreal_: then visit my father see how he's doing with his cancer treatmetn
01:30 PM CaptHindsight: _unreal_: I might be but likely exhausted
01:31 PM CaptHindsight: have to build a custom pallet for international shipping
01:31 PM CaptHindsight: and load a ton of stuff
02:37 PM CaptHindsight: _unreal_: https://www.heatsinkcalculator.com/free-resources/heat-sink-thermal-resistance-calculator.html
02:42 PM kynan: Hey folks. I'm looking for a channel where people talk about plotters and inkcut. I saw in some logs that this was mentioned here sometimes.. is there a better channel? :/
02:51 PM JT-Shop: we talk about everything here from chickens to how the earth was formed
02:52 PM JT-Shop: to answer your question, I don't know of any...
02:55 PM Javabean: if you grab a real irc client, keep this room open... you never know what will be discussed here
02:57 PM unterhaus: I just turned a 6" long 2" cylinder of stainless into a batch of chips and a part that is a lot shorter than that
02:58 PM unterhaus: supposed to be 2 parts, but I made the bore too big on the second part
03:02 PM Javabean: i would offer some dip for your chips, but i actually seem to be out of ingredients
03:20 PM _unreal_: i'm hungry
03:21 PM Tom_L: go get us all pizza
03:21 PM Javabean: sweet!!! been thinking about pizza all day... i can call in the order and tell them that _unreal_ is paying, send him the bill
03:23 PM kynan: awesome :) Does anyone use Inkcut ? lol
03:24 PM Javabean: might take a few before someone says yes, kynan... i swear most of the peeps here in channel sleep all day on the weekend
03:24 PM kynan: or they're out doing healthy things ;D
03:26 PM Javabean: ... i'll let you in on a secret, irc is typically populated with people whom seldom ever see daystar... and most of the weights we lift are pc's or other electronic equiptment
03:31 PM CaptHindsight: kynan: yes and http://www.scorchworks.com/index.html
03:32 PM CaptHindsight: https://i.imgur.com/EAF5oPj.jpg
03:32 PM Javabean: sweet, someone has a gingery lathe
03:32 PM CaptHindsight: https://postimg.cc/67Csv2QJ
03:33 PM CaptHindsight: bbl
03:33 PM kynan: @CaptHindsight that's cool. I have a GraphTec CE5000-40-CRP that I'm trying to get working with Inkcut. I've got everything set up under cupsd and afaict jogging the printer head even works under a normal print dialog but I can't get Inkcut to send GPGL to the cutter
03:33 PM CaptHindsight: back in a few hours :(
03:34 PM kynan: ok :)
04:03 PM _unreal_: never even heard of inkcut
04:04 PM _unreal_: ohhh. inkcut for inkscape
04:05 PM _unreal_: I think I have heard of it screwed with it for a few hours and left it in disgust
04:05 PM _unreal_: well bbiab, heading to the hardware store to get parts for my cnc
04:05 PM Deejay: gn8
04:40 PM * Javabean grumbles, dominos didn't let me forward the bill to _unreal_
05:15 PM jthornton: DAMMIT I can't get Qt QMultimedia to play an audio file on the RPi3 for nothing
05:16 PM XXCoder: I guess it needs some bribery?
05:16 PM XXCoder: ;) wonder why it wont
05:18 PM jthornton: some dependency issue I guess, it worked on the RPi4 with the Rt kernel
05:20 PM Jymmm: any log files?
05:22 PM jthornton: I get errors to the screen... let me check dmesg
05:22 PM Tom_L: chickens getting impatient for their itunes?
05:22 PM jthornton: we don't do itunes lol
05:23 PM Jymmm: ChickenTunes.com
05:23 PM Tom_L: they're trying to teach jthornton the chicken dance...
05:23 PM jthornton: getting to be a pia qmultimedia works fine on a pc and worked on the RPi4
05:23 PM jthornton: the Funky Chicken
05:24 PM Jymmm: Tom_L: I'd pay to see that
05:25 PM jthornton: libEGL warning: DRI2: failed to authenticate
05:25 PM jthornton: qt5ct: using qt5ct plugin
05:25 PM jthornton: qt5ct: D-Bus global menu: no
05:25 PM jthornton: the first one seems to be the issue
05:25 PM jthornton: dunno
05:26 PM XXCoder: isnt there utilities to scan for deps?
05:33 PM Tom_L: what is ldd?
05:34 PM XXCoder: #7 https://pi3d.github.io/html/FAQ.html
05:34 PM Tom_L: apt-cache depends might
05:35 PM jthornton: XXCoder, good find
05:35 PM XXCoder: thanks
05:36 PM jthornton: I've been searching for days lol
05:37 PM XXCoder: really? odd
05:52 PM jthornton: I'm going to flash the SD card and start from scratch again...
05:53 PM XXCoder: oh well :(
05:54 PM jthornton: I had the full version and maybe something related to the link you found
05:55 PM * jthornton wanders upstairs to cook some burgers on the grill
05:56 PM XXCoder: yummy
05:56 PM * Tom_L wanders up behind unnoticed
05:56 PM * Javabean had pizza, but only because someone else offered to buy... had to pay, oh well, but it was still good
06:25 PM jthornton: XXCoder, I know what the issue is now, the clue was in your link... it only works on the lite version without all the extra crap
06:26 PM XXCoder: interesting. so extra crap overwrites some stuff that causes that issue
06:26 PM XXCoder: while core is fine
06:26 PM jthornton: yea I think so
06:26 PM jthornton: The chances are this is because ‘something’ (such as gedit) has installed mesa which added its own versions of libEGL and libGLESv2.
06:27 PM XXCoder: wha
06:27 PM XXCoder: gedit, a text editor, needs mesa
06:28 PM jthornton: it worked on the RPi4 because I was testing it with linuxcnc and the lite install that uses openbox
06:28 PM XXCoder: them fancy 3d text
06:28 PM jthornton: mesa is a lib
06:28 PM XXCoder: yeah 3d graphics library
06:35 PM jthornton: odd that it uses the same ip address with a fresh install
06:36 PM XXCoder: some of router keep ip with mac address
06:37 PM jthornton: ah ok that makes sense
10:21 PM JesseG: hey anyone use blendercam? if so, what version of blender, blendercam, and shapely do you use together? Having fits here trying to get the 3 to talk... :P
10:42 PM CaptHindsight: JesseG: have only played with BlenderCAM, don't recall the version of Blender or BlenderCAM we tried.
10:44 PM JesseG: roger on that
10:48 PM CaptHindsight: seems I have BlenderCAM v2.76b
10:53 PM JesseG: Are you able to do parallel path generation with it?
10:54 PM JesseG: I wonder if it'd be better to load the STL from blender into freecad or something to generate the cam...
10:55 PM CaptHindsight: I was looking into all the open CAM applications at the time to see if I would add 4+ axis CAM to something or start a new project from scratch
10:57 PM CaptHindsight: https://github.com/vilemduha/blendercam master says Blender 2.80 as a dependency
11:00 PM JesseG: yeah we got 2.80 I believe. But image_utils.py is throwing exceptions when we try to do a parallel toolpath
11:05 PM CaptHindsight: JesseG: I seem to recall asking question about BlenderCAM in Blender was not welcome
11:05 PM CaptHindsight: #blender
11:06 PM JesseG: hahaha I just tried that. They were nice to me but didn't have any helpful info, I guess not very many people use blendercam
11:07 PM CaptHindsight: #blendercam hmm from the wiki
11:07 PM JesseG: yeah a couple bots and I are waiting there for a sign of life :D
11:08 PM CaptHindsight: TurBoss: lives, well I'm pretty sure
11:08 PM JesseG: basically a friend and I have been banging our heads for a week or two over this.. so now it's like throw up hands and start asking everywhere LOL
11:08 PM CaptHindsight: yeah, do they have a mail list or other contact info?
11:09 PM JesseG: cool, I'll idle there and see who pops in :D
11:09 PM Javabean: remember, they might not show themselves on saturday/sunday
11:09 PM JesseG: so they used to have a forum (which is still operational but abandoned) on google groups
11:10 PM JesseG: Javabean, yes indeed, I'll just idle for weeks :D
11:10 PM JesseG: CaptHindsight, They left a note on their google groups forum that they mostly use github now
11:10 PM CaptHindsight: I don't recall it being an active project but they have made recent updates
11:11 PM CaptHindsight: TurBoss: has made commits to it and he is in this channel!
11:11 PM JesseG: cool!
11:11 PM CaptHindsight: might be passed his bed time
11:12 PM TurBoss: yo
11:12 PM CaptHindsight: https://github.com/vilemduha/blendercam/graphs/contributors
11:12 PM JesseG: hey TurBoss ! Seems you're the man we're looking for! How're things?
11:13 PM TurBoss: fine
11:13 PM CaptHindsight: JesseG: what was your question again?
11:14 PM CaptHindsight: known working version of BlenderCAM?
11:14 PM JesseG: CaptHindsight, ( & Turboss) - What versions of Blender, Blendercam, and Shapely can I use together to do parallel mode toolpath generation:? (Actually I don't care the path mode as long as I can carve 3D relief into wood.)
11:15 PM JesseG: I'm not picky about any of the versions, as long as the 3 work together :D
11:15 PM TurBoss: wich OS
11:15 PM TurBoss: windows?
11:15 PM JesseG: Macos
11:16 PM JesseG: I'm helping a friend and he uses mac.
11:16 PM JesseG: If it was me it'd be Linux :D
11:16 PM TurBoss: no experience on mac but should be same
11:16 PM TurBoss: https://github.com/vilemduha/blendercam/wiki/Using-Blendercam-from-github
11:16 PM TurBoss: first get the sources from github
11:17 PM TurBoss: in any folder you want
11:17 PM JesseG: yeah basically we did the git clone and copied shapely into the local python folder
11:17 PM TurBoss: hmmm
11:17 PM JesseG: TurBoss, yeah that's the howto we last followed.
11:17 PM TurBoss: ok
11:17 PM JesseG: But there's some incompatibility - image_utils.py is throwing exceptions
11:18 PM TurBoss: so shapely is installed?
11:18 PM TurBoss: ok
11:18 PM TurBoss: may be a bug
11:18 PM TurBoss: if you could dpacte.com the error
11:18 PM JesseG: first about an enum member that was incorrectly named so we fixed that, then about some other things, then ultimately it couldn't get the buffer
11:18 PM TurBoss: :/
11:18 PM JesseG: so a library was changed but the code that calls the library's functions wasn't updated
11:19 PM JesseG: yeah, shapely is installed and enabled
11:19 PM JesseG: Did you have to edit any py files to get yours working?
11:19 PM TurBoss: no
11:20 PM TurBoss: I just clone master
11:20 PM JesseG: When doing relief routing of 3D, what tool path mode do you use? Parallel?
11:20 PM TurBoss: parallel finall 3.0
11:20 PM TurBoss: yes
11:21 PM JesseG: So here's how I got BC: git clone https://github.com/vilemduha/blendercam.git
11:21 PM JesseG: maybe that's not the master
11:21 PM TurBoss: yes thats fine
11:21 PM JesseG: ok
11:22 PM JesseG: What version of blender are you using?