#linuxcnc Logs

Aug 04 2019

#linuxcnc Calendar

12:21 AM infoproxy: how do I stop LinuxCNC from adding a radius to the ends of the the strait line movements?
12:26 AM XXCoder: ah thats accerayion limition, you can make it stop and move, slower but sharp corners
12:26 AM XXCoder: errrrm
12:26 AM XXCoder: g24?
12:26 AM XXCoder: no its not g24
12:30 AM infoproxy: yep, all better, Thanks
01:58 AM CaptHindsight: unless you order from a warehouse cable supplier the Rpi4 cables can cost you more than the Rpi4
01:59 AM XXCoder: like hdmi?
01:59 AM CaptHindsight: USB-C for power and Micro-HDMI for 2 monitors
02:00 AM XXCoder: geez
02:02 AM CaptHindsight: common smartphone connectors
02:02 AM CaptHindsight: so most tend to stock only pricey versions
02:02 AM CaptHindsight: vs $5 cables
02:03 AM XXCoder: careful with usb-c cables, some of em can literally dry your device
02:04 AM XXCoder: erm fry
02:04 AM CaptHindsight: I only use them while bathed in dry ice
02:05 AM XXCoder: lol
02:08 AM CaptHindsight: XXCoder: did you see this? Raspberry Pi 4 model B 4GB running linuxcnc Mesa 7i76E card via the RPI4's ethernet port. https://www.youtube.com/watch?v=FlZiq8uCcpI
02:08 AM XXCoder: looking
02:09 AM XXCoder: interesting
02:09 AM XXCoder: i wonder what latency is like
02:10 AM CaptHindsight: pics on the forum
02:10 AM CaptHindsight: of the latency tests
02:11 AM XXCoder: ahh ok
02:14 AM CaptHindsight: https://forum.linuxcnc.org/18-computer/36879-raspberry-pi-4?start=20
02:15 AM XXCoder: im not sure how to read the histgram
02:16 AM CaptHindsight: max + will be on the right of the curve
02:16 AM XXCoder: ignoring outlier, it looks like at 40
02:17 AM CaptHindsight: with isolcpus he gets around 28uS jitter
02:17 AM XXCoder: not bad
02:31 AM Deejay: moin
03:14 AM andypugh: Here in Stuttgart we just CNC-converted a C1 lathe, and that is currentl running with a Mesa 7i96 and a Pi4. Seems to wor entirely adequately.
03:15 AM XXCoder: sounds like nice way to have prepackaged linuxcnc system
03:15 AM XXCoder: I would love to have that, expecially if it also has wheel and switches etc
03:16 AM andypugh: I want to see a 4-axis stepper driver with a DIMM slot for a Pi compute module.
05:57 AM Tom_L: morning
05:58 AM XXCoder: morning
05:59 AM jthornton: morning
06:02 AM Tom_L: sounds like andy's having fun
06:02 AM XXCoder: ?
06:02 AM XXCoder: oh yea
06:02 AM jthornton: yep he seems to always have fun
06:03 AM XXCoder: rspi4 seem to be viable for linuxcnc
06:03 AM XXCoder: made me wonder if its possible to have cnc linuxcnc kit
06:03 AM XXCoder: scree, pi4, mesa and controls
06:03 AM XXCoder: as well as plug for pendant and stuff
06:03 AM jthornton: scree?
06:04 AM XXCoder: screen
06:04 AM jthornton: ah
06:04 AM XXCoder: picture HAAS control screen and stuff but as on its own as a kit for any machine
06:04 AM jthornton: there is a 7" touch screen for the rpi and it mounts in the back
06:05 AM jthornton: can't picture something I've never seen...
06:06 AM XXCoder: haas isnt best example honestly
06:06 AM XXCoder: http://metalworkingnews.info/wp-content/uploads/2016/10/Prod-Rev-hass-nextgencontrol.jpg
06:06 AM XXCoder: dont need to be that big and have that many buttons
06:06 AM jthornton: wow that has a lot of buttons
06:07 AM Tom_L: haas controls do yes
06:07 AM XXCoder: way many
06:07 AM Tom_L: god only knows what they all do
06:07 AM XXCoder: i know some of it
06:07 AM Tom_L: pretty sure a full keypad with numbers takes up alot of it
06:08 AM XXCoder: do you known haas dont have input? only add or subtract
06:08 AM XXCoder: so annoying
06:08 AM Tom_L: i've never run one
06:08 AM XXCoder: in least its not hurco's input only, no add or subtract
06:08 AM Tom_L: i've seen the simulators at the vo'tech and the haas machines they have
06:08 AM XXCoder: want -.001 on some tool? you have to input entire number on hurco. insane
06:11 AM Tom_L: https://openoregon.pressbooks.pub/app/uploads/sites/17/2017/02/haas-keys.png
06:11 AM XXCoder: kerys
06:11 AM jthornton: lol
06:12 AM XXCoder: see how ugly it is.
06:12 AM jthornton: I was drawn to that at once
06:12 AM XXCoder: takes you a bit to read it and use it
06:12 AM jthornton: keyboard is not normal
06:12 AM Tom_L: no, it's like a TV
06:12 AM XXCoder: I like fadal 88 more. https://images-na.ssl-images-amazon.com/images/I/510jStnFmvL._SX425_.jpg
06:13 AM XXCoder: can use less buttons and regular keyboard to strunk it some more but yeah
06:13 AM Tom_L: fadal controls are simple
06:13 AM XXCoder: fadal 88 is STILL for sale at work
06:13 AM XXCoder: $2000
06:13 AM Tom_L: buy it
06:13 AM XXCoder: but nobodys buying, spindle is shot and its a mess
06:13 AM Tom_L: spend 600 moving it
06:13 AM XXCoder: i cant afford move, let alone price
06:13 AM Tom_L: and a transformer to convert it to 220v
06:14 AM XXCoder: anyway I told em if its to be scrapped I want all controls on it
06:17 AM Tom_L: it'll fit in a regular height garage if you make a cutout for the Z servo
06:18 AM XXCoder: no place to put it. my garage is so low my head barely is below wood beams
06:18 AM XXCoder: i think its 6 feet high space inside
06:18 AM XXCoder: no way it will fit :)
06:19 AM XXCoder: unless you know a certain doctor..?
06:21 AM jthornton: in Ripley county they just use a chain saw to make things fit
06:22 AM XXCoder: lol
06:24 AM jthornton: it seems odd that your garage is only 6' tall...
06:26 AM XXCoder: yeah
06:26 AM XXCoder: my poor nephew
06:26 AM XXCoder: made in 1946 I guess
06:26 AM XXCoder: have old loooong wood
06:26 AM XXCoder: cant buy those now lol
06:27 AM XXCoder: anyway its why it cant be used as "shop"
06:27 AM XXCoder: we plan to build a shop, but may be years
06:36 AM jthornton: working on my new store now, finally decided on what shopping cart to use
06:38 AM jthornton: http://mesaus.dreamhosters.com/ temporary mirror site
06:39 AM XXCoder: lets see
06:40 AM XXCoder: yep I cant read some text
06:41 AM jthornton: to light?
06:41 AM XXCoder: yeah
06:41 AM jthornton: don't like the colors but I've not worked on that yet
06:41 AM XXCoder: ok
06:41 AM XXCoder: zoomed in heavily so its readable
06:42 AM XXCoder: lets see
06:42 AM jthornton: just trying to get some of the stuff sorted out
06:42 AM XXCoder: "view cart" only appears when I add item
06:43 AM XXCoder: and if I refresh I have no way to see car
06:43 AM jthornton: I've not even looked at the cart yet
06:43 AM XXCoder: yep have to add item, then click. or else cannot see cart
06:44 AM XXCoder: no payment option, but im sure its because you havent added any
06:45 AM jthornton: yea not got to that point yet just started on the store yesterday
06:45 AM XXCoder: yeah its early
06:45 AM XXCoder: no overall cart link definitely need to be fixed. contrast you want to fix, but not a requirement most people can read it im sure
06:46 AM jthornton: from the home page I do have some guides, did you look at them
06:46 AM XXCoder: ethernet solution
06:46 AM XXCoder: http://gnipsel.com/linuxcnc/uspace/ ?
06:47 AM jthornton: yea that's my guide for installing uspace
06:47 AM XXCoder: cool :)
06:47 AM XXCoder: i want linuxcnc back on this pc somehow. i dont really want to do a workaround hack to get old python installed
06:48 AM XXCoder: its just ugly
07:01 AM jthornton: what OS are you using now?
07:02 AM XXCoder: xfce mint
07:02 AM XXCoder: dont need rt thing, just sim
07:03 AM jthornton: just install uspace it runs on anything
07:03 AM XXCoder: what repo do I use?
07:04 AM jthornton: http://gnipsel.com/linuxcnc/uspace/linuxmint19-emc.html
07:04 AM jthornton: just ignore the rt stuff
07:05 AM XXCoder: so build it eh
07:05 AM jthornton: yea
07:05 AM XXCoder: ok will do later. bit tired heh
10:13 AM jym: Morning folks
10:35 AM JT-Shop: afternoon
10:36 AM * Tom_L checks his watch
10:39 AM jym: (08:31:21 AM) ***Tom_L checks his watch
11:15 AM Deejay: [17:31] Tom_L checks his watch
01:03 PM CaptHindsight: "Here in Stuttgart we just CNC-converted a C1 lathe, and that is currently running with a Mesa 7i96 and a Pi4."
01:03 PM CaptHindsight: whatch, this won't be cheap enough
01:04 PM szy_mat: jym: where's morning currently?
01:04 PM CaptHindsight: you're going to see a bunch of crappy Rpi 4 shields for stepping
01:04 PM szy_mat: here in Europe it's afternoon :/
01:04 PM jym: szy_mat: Califonria
01:05 PM CaptHindsight: Califonria won't be afternoon for another hour
01:06 PM szy_mat: that's a good thing, because I'd basically wasted whole day and I wish it's morning here
01:07 PM CaptHindsight: wasted a day? How do you waste a day?
01:08 PM CaptHindsight: watch reruns of Petticoat Junction all day"
01:08 PM szy_mat: something like that
01:15 PM jym: CaptHindsight: That's kinda sad for so many reasons =(
01:23 PM CaptHindsight: not sure why they chose a USB-c over a barrel connector, or even 2 screw terminals
01:30 PM CaptHindsight: hope they did a good job on the video drivers
01:30 PM CaptHindsight: will find out later today
01:32 PM CaptHindsight: https://www.raspberrypi.org/forums/viewtopic.php?t=243892
01:33 PM CaptHindsight: have to ask on the forums if he did anything to turn on gpu accel
01:39 PM skunkworks: https://www.youtube.com/watch?v=pv_y4eZDQXU
01:48 PM jym: CaptHindsight: have you done the rpi4 and mesa yet?
01:53 PM skunkworks: CaptHindsight: very tempted to buy a pi4.. Don't really know why.
01:54 PM skunkworks: someone needs to start selling a rpi4 + 7i92 in a case.. 'total cnc solution'
01:54 PM skunkworks: ;)
01:57 PM CaptHindsight: skunkworks: the average cheapskate won't want to pay for that
01:57 PM jym: rpi4 has usb issues
01:57 PM CaptHindsight: pi4 + some $30 IO board for stepping
01:57 PM jym: rpi4 has usb power issues
01:57 PM CaptHindsight: yup, but not a big deal
01:58 PM CaptHindsight: reminds of China, they could ask 100 Americans to check their spelling and grammar but they don't
01:59 PM CaptHindsight: same with the pi4, post the schematic before you build
01:59 PM skunkworks: $30 is too much.. ;)
01:59 PM CaptHindsight: who is going to steal their plans, they are the only ones with the silicon
01:59 PM CaptHindsight: $30 on the high side
01:59 PM CaptHindsight: like the *duinos
02:00 PM CaptHindsight: it will have little to no protection
02:00 PM CaptHindsight: cheap BOB's are $10
02:00 PM CaptHindsight: BOB with a STM32 for stepping
02:01 PM CaptHindsight: $13
02:02 PM CaptHindsight: maybe whine about how LCNC needs 2GB of RAM version, use some crappy Linux and GRBL on the 1GB version
02:02 PM CaptHindsight: not that LCNC needs 2GB
02:02 PM CaptHindsight: they will find something to whine about
02:16 PM pcw_home: 1G is OK on a RPI3 as long as you do not have really dense backplots (this may be fixed by newer more efficient backplot graphics )
02:37 PM jym: pcw_home: any way to "offload" to the mesa card?
02:43 PM pcw_home: Graphics, no but pretty sure replacing whatever Gremlin uses with VTK will help a huge amount
03:02 PM jym: ah
03:46 PM CaptHindsight: they don't even pack the Rpi4 in a conductive bag, i wonder how many get ESD damage the second the box gets opened
03:47 PM CaptHindsight: and i always hear the old stories of how ESD is overrated
03:47 PM CaptHindsight: and how "we never put things in back and it still works"
03:47 PM CaptHindsight: back/bags
04:05 PM Deejay: gn8
04:30 PM justan0theruser is now known as justanotheruser
05:25 PM Loetmichel: CaptHindsight: depends on the chips
05:25 PM Loetmichel: i just have trashed a Core i7-3770k because of ESD damage to PCI-E lines.
05:26 PM Loetmichel: <- sad face
06:48 PM _unreal_: sigh
06:48 PM _unreal_: I wonder what ever happend to fdarling
07:00 PM _unreal_: did I miss anything
07:43 PM MarcelineVQ: not really
10:10 PM XXCoder: JT-Shop: building now
10:14 PM Tom_L: building a house?
10:14 PM Tom_L: what linux version?
10:15 PM XXCoder: uh
10:15 PM XXCoder: it built bunch of debs
10:15 PM XXCoder: which one do I install
10:16 PM Tom_L: where you at?
10:16 PM XXCoder: http://gnipsel.com/linuxcnc/uspace/linuxmint19-emc.html
10:16 PM XXCoder: ah it suggests linuxcnc-uspace_2.8.0~pre1_amd64.deb
10:16 PM Tom_L: just for a pc or for linuxcnc?
10:17 PM XXCoder: installing linuxcnc sim
10:17 PM Tom_L: ok carry on
10:17 PM Tom_L: do the preempt-rt
10:17 PM XXCoder: nah it wont run any real machine
10:18 PM Tom_L: did you install mint already?
10:19 PM XXCoder: installed it couple years agp
10:19 PM XXCoder: upgrade wiped it out tho
10:19 PM Tom_L: 19?
10:19 PM XXCoder: 19.1 now but was upgrade TO 19 yeah
10:20 PM XXCoder: excellent! 3axis_tutorial works fine
10:20 PM Tom_L: should be ok but i've not installed mint before
10:20 PM Tom_L: good
10:20 PM Tom_L: carry on.
10:21 PM XXCoder: closed with an error
10:22 PM jym: XXCoder: BSOD?
10:22 PM XXCoder: nah
10:22 PM XXCoder: i created report a secobd
10:22 PM jym: lol, just checking =)
10:23 PM XXCoder: http://dpaste.com/31AAWP0
10:25 PM XXCoder: python error maybe
10:25 PM Tom_L: what python do you have loaded?
10:25 PM XXCoder: python 3 I guess
10:25 PM Tom_L: you might need 2?
10:26 PM Tom_L: i dunno
10:26 PM Tom_L: looks like it crapped on axis
10:27 PM XXCoder: running, "powered on" homed, movbed it around a little
10:27 PM XXCoder: crashed on exit
10:28 PM Tom_L: i'm just guessing anyway. better find someone that actually knows :)
10:28 PM XXCoder: running logo
10:28 PM XXCoder: vismach is running fine
10:28 PM XXCoder: the super awesome machine I made lol
10:31 PM XXCoder: weird it stopped
10:31 PM XXCoder: oh nevermind it was finished
10:33 PM XXCoder: weird. it does not complete
10:33 PM XXCoder: it stops at line 198 g0 z3.0
10:39 PM XXCoder: lol somethings broken with 3axis-tutorial
10:40 PM XXCoder: tool isnt showing correctly. I can see disk at tip of "cat30" but zero length
10:40 PM XXCoder: draw spot is correct at length tho
10:44 PM XXCoder: Tom_L: looks like vismach is kinda broken with no phython 2.0
10:45 PM Tom_L: kinda wondered about that
10:46 PM XXCoder: some dumbass went on tv and said "omgz games cause people to shoot people"
10:46 PM XXCoder: well not exactly said like that but basically
10:47 PM Tom_L: well a few blocks down the street here that happened
10:48 PM Tom_L: gamer in Ca prank called and when the kid came out the front door and started to pull his pants up or something cops shot him in the head
10:49 PM XXCoder: thats swatting
10:49 PM Tom_L: k
10:49 PM Tom_L: i'm not a gamer :)
10:49 PM Tom_L: and neither his he now
10:50 PM XXCoder: guess not
10:51 PM XXCoder: I still remember one of livestream gaming videos, apparently someone called in cops
10:51 PM XXCoder: he was belligant and got arrested. livestream was still running
10:51 PM XXCoder: then some guy come in and stole stuff while it was still running
10:52 PM XXCoder: then he come back in and grabbed some more stuff, got caught by cops
10:52 PM Tom_L: they went after the kid in Ca and got him as well but it doesn't change anything
10:52 PM XXCoder: later on things got clear, that thief guy was one who called cops in
10:52 PM XXCoder: guy who was arrested was released right away.
10:53 PM XXCoder: https://www.youtube.com/watch?v=GKGySg0nb4M found it
10:58 PM XXCoder: uhh
10:58 PM XXCoder: I have python 2.7 and 3.6 installed
10:58 PM XXCoder: should be workable
11:01 PM XXCoder: https://github.com/LinuxCNC/linuxcnc/issues/627
11:01 PM XXCoder: known bug
11:01 PM XXCoder: now to figure out why 3axis-tutorial isnt working out
11:12 PM XXCoder: Tom_L: solved.
11:12 PM XXCoder: leng = s.tool_table[s.tool_in_spindle].zoffset does not work in 2.8
11:13 PM XXCoder: ah I know why
11:13 PM XXCoder: # s.poll() # 2.8 don't need this, comment out if using 2.8.
11:13 PM XXCoder: it does need if I want "instant" updates
11:16 PM Elmo40: what kind of limit/homing switches do you guys use?
11:16 PM XXCoder: havent installed mine
11:16 PM Elmo40: optical or physical?
11:17 PM XXCoder: switches
11:17 PM XXCoder: physica;
11:18 PM XXCoder: it would be homing only, and soft limit is before it hits switch so it should be touched only on homing
11:19 PM Elmo40: aww, tinypic.com is closing.
11:20 PM Elmo40: only a single switch?
11:20 PM XXCoder: uh I did say "es" earlier ;)
11:20 PM Elmo40: or two. one to trigger a slower homing speed then the second for the actual home position
11:20 PM XXCoder: per axis you mean? single.
11:20 PM Elmo40: per axis
11:21 PM XXCoder: right now if machine was runnign I manually set home by pushing machine to mins then back off half rotation
11:21 PM Elmo40: does linuxcnc support dual homing switches per axis? for what i just mentioned.
11:21 PM XXCoder: havent added switches yet
11:21 PM XXCoder: erm not sure
11:25 PM Elmo40: i'm thinking of using these
11:25 PM Elmo40: https://qurl.org/lnV
11:26 PM XXCoder: looks like nicer rolling switch
11:27 PM XXCoder: designed with right place of contact and trigger that'd be super nice and repeatable