#linuxcnc Logs

Oct 02 2021

#linuxcnc Calendar

12:14 AM Bleepshop|2 is now known as Bleepshop
01:14 AM -!- #linuxcnc mode set to +v by ChanServ
02:06 AM Deejay: moin
02:38 AM TurBoss: morning
05:07 AM JT-Cave: morning
05:07 AM XXCoder: o/
06:26 AM -!- #linuxcnc mode set to +v by ChanServ
09:48 AM bjorkintosh: have any of you ever used polar co-ordinates for anything other than circular bolt hole patterns?
10:21 AM -!- #linuxcnc mode set to +v by ChanServ
10:21 AM -!- #linuxcnc mode set to +v by ChanServ
10:21 AM -!- #linuxcnc mode set to +v by ChanServ
10:55 AM Eric_: sometimes I crack myself up. "What does the backup configuration file say?"
10:55 AM Eric_ is now known as unterhausen
11:13 AM roycroft: speaking of such things, to keep my linuxnc configuration backed up, i think i just need to keep the home directory of the user who runs it backed up
11:13 AM roycroft: is this correct?
11:16 AM Tom_L: afik that's probably true now
11:17 AM Tom_L: there used to be directories for mesa bit files
11:17 AM Tom_L: but most of them load onto the card now
11:17 AM roycroft: i'll look for changes when i set up the mesa board
11:17 AM Tom_L: it was something like /lib/firmware/
11:18 AM Tom_L: haven't had a need to look for a while so i may be forgetting
11:19 AM Tom_L: typically i back up the install directory now
11:19 AM Tom_L: /usr/linuxcnc/
11:19 AM Tom_L: /home/usr/linuxcnc/
11:19 AM roycroft: no such directory on the pi
11:20 AM Tom_L: sub user for pi
11:20 AM roycroft: there's /home/pi/linuxcnc
11:20 AM Tom_L: that's what i meant
11:20 AM roycroft: i'll probably create a linuxcnc or cncrouter user
11:20 AM Tom_L: jt has directions to change that to 'roy' if you want
11:20 AM roycroft: and run from there
11:21 AM Tom_L: no need to recreate it
11:21 AM roycroft: i'll have two configurations for this machine - one for the overhead spindle, and one for the underside spindle
11:21 AM roycroft: i'm not sure if i'll want to have a different user for each one, or to run them both as the same user
11:21 AM Tom_L: https://gnipsel.com/linuxcnc/uspace/rpi4-ext.html
11:22 AM roycroft: but this is why i'm asking about backups - i'll want to be making backups frequently as i configure the machine
11:22 AM Tom_L: i'd probably keep them the same but everyone has their own idea
11:22 AM roycroft: thanks
11:22 AM roycroft: if i can do it with one user easily that would be best
11:23 AM Tom_L: just name the configs different and create 2 icons
11:23 AM Tom_L: some of the config files would likely stay the same anyway
11:23 AM roycroft: i will be launching it from the command line, so icons would not matter
11:23 AM roycroft: and yeah, many of the config files will be the same
11:23 AM roycroft: most, i should think
11:23 AM Tom_L: then you would specify the config there
11:24 AM Tom_L: i think
11:24 AM roycroft: linuxcnc [-v] [-d] [INIFILE]
11:24 AM roycroft: it looks like you're correct
11:24 AM Tom_L: so have 2 or more ini files
11:25 AM roycroft: yes
11:25 AM Tom_L: for a while i kept new_mill.ini and sherline.ini
11:25 AM Tom_L: while i was building
11:25 AM Tom_L: and maybe the main.hal
11:31 AM roycroft: i'm thinking that, while doing the initial config, i might check the linuxcnc user's home directory into git
11:31 AM roycroft: that way i'll be able to track changes easily
11:39 AM roycroft: it would also be a good way to do backups of the linuxcnc stuff - i'd keep the master repository on my gitlab server
01:11 PM JT-Shop: all right the panel is wired up and the cover on... I gave up looking for that box marked Square D Homeline Breakers and just bought 2
01:11 PM Tom_L: what you workin on today?
01:12 PM Tom_L: been raining on and off here
01:17 PM JT-Shop: raining all day here, moving my shipping desk to the back of the garage and need some power and Ethernet
01:17 PM JT-Shop: gotta get that installed before moving the desk or I'd end up using extension cords lol
01:19 PM Tom_L: heh
01:23 PM JT-Shop: I'm glad I had enough 12-3 w/g to run two circuits over there from the panel
01:30 PM Tom_L: JT-Shop, seb just released a new mesaflash if you want to refresh your github
01:31 PM Tom_L: i wasn't sure you were still maintaining it there
01:31 PM Tom_L: MesaFlash 3.4.0 release
01:31 PM Tom_L: 2 days ago
01:37 PM JT-Shop: ok thanks
01:37 PM * JT-Shop wonders if roycroft found the lagniappe
02:12 PM CaptHindsight[m]: https://imgur.com/gallery/jTSM43u
02:13 PM Tom_L: safety first
02:14 PM CaptHindsight[m]: well he was wearing a mask....
02:14 PM Tom_L: well he was wearing a shirt to begin with
02:15 PM Tom_L: long hair and baggy clothes are a no no on equipment
02:25 PM JT-Shop: a guy at the shipyard wired up the dead man switch on a lathe and it killed him
02:34 PM roycroft: i have long hair,but it's tied up or tucked into a hat when my head is near things that spin
02:34 PM * roycroft is trying to evict a family of neutrias today
02:54 PM CaptHindsight[m]: roycroft: http://des.truct.org/tmp/PXL_20211002_183456786.jpg elm or?
02:59 PM roycroft: that looks rather dark for elm - it looks like black walnut to me
03:00 PM roycroft: in which case i want that log :)
03:05 PM Tom_L: why are the outter rings so much lighter?
03:09 PM JT-Shop: I agree it's black walnut when you zoom in and look at the leaves
03:15 PM CaptHindsight[m]: https://www.phillyorchards.org/wp-content/uploads/2018/10/walnuts-1.png you have to wear a helmet this time of the year
03:16 PM CaptHindsight[m]: the trails are littered with them
03:18 PM CaptHindsight[m]: https://www.youtube.com/watch?v=-di-NMFy5iI
03:20 PM CaptHindsight[m]: https://www.youtube.com/watch?v=qGyMBkYgQsQ
03:23 PM CaptHindsight[m]: plain bearings https://youtu.be/4dUrQuUogEM?t=122
04:33 PM -!- #linuxcnc mode set to +v by ChanServ
04:59 PM roycroft: sapwood, tom_l
05:04 PM JT-Shop: roycroft, any reason to pick netgear over tp-link gigabit switch?
05:06 PM roycroft: i don't know a lot about either of them
05:06 PM roycroft: i use used cisco switches
05:07 PM roycroft: i get them pretty cheap, and they're managed, so i can have my pager make noise if a link goes down
05:08 PM JT-Shop: I just use unmanaged
05:08 PM JT-Shop: they are cheap $16
05:08 PM JT-Shop: for a 5 port
05:08 PM roycroft: https://www.ebay.com/itm/124447665541
05:08 PM roycroft: ones like that are what i use
05:08 PM roycroft: even at home
05:08 PM roycroft: i'm not saying you need that
05:08 PM JT-Shop: what does managed do?
05:08 PM roycroft: i'm just saying i don't know about the others
05:09 PM Tom_L: i've had a 24port linksys running for quite a few years now with no issues
05:09 PM roycroft: it lets you snmp query it
05:09 PM roycroft: and you can ssh into it to configure it
05:09 PM JT-Shop: ok
05:09 PM XXCoder: you can do interesting things with managed, like have certain ports only go to certain network, or just disable ports and such
05:09 PM roycroft: but it's the snmp query that is nice
05:09 PM JT-Shop: interesting
05:10 PM roycroft: my network monitoring software can monitor it and tell me if something is amiss
05:10 PM Tom_L: i've also had smaller netgear switches
05:10 PM Tom_L: i think one died on me
05:10 PM roycroft: yes, i use vlanning on my switches all the time
05:10 PM roycroft: and the one i linked to is actually l2/l3 if you run the right ios image on it
05:10 PM roycroft: so it can be a router as well as a switch
05:11 PM roycroft: it also does etherchannel, where it can link multiple ports together to get better throughput if your end device can also do that
05:11 PM roycroft: again, all stuff you may not need or may not be useful to you
05:12 PM roycroft: but i've been really happy with the 3750g switches
05:12 PM roycroft: in fact, i have a pile of about a dozen of them sitting in my living room
05:12 PM roycroft: that's one of my projects - to find a place to store them
05:13 PM XXCoder: build a rack out of 2020 extrudes
05:13 PM roycroft: they've been sitting there since april, when we moved out of the data center
05:13 PM roycroft: i have a full size rack cabinet already
05:13 PM roycroft: but it's full
05:13 PM roycroft: i should probably ebay most of the switches
05:13 PM XXCoder: time for another
05:13 PM roycroft: no room
05:13 PM roycroft: and no need
05:14 PM roycroft: i have plenty of servers and network gear already in the rack
05:14 PM roycroft: everything else in the piles are just spares
05:14 PM Tom_L: so aparently that mesaflash released builds as 64bit
05:14 PM roycroft: hmm
05:14 PM Tom_L: 3.4.0?
05:14 PM roycroft: i wonder if i should try a 64bit kernel on my pi
05:14 PM roycroft: i lost my console today on the pi
05:15 PM roycroft: i was just dealing with that
05:15 PM Tom_L: i didn't think i needed it
05:15 PM roycroft: i went to investigate, and the hdmi to micro hdmi adapter fell apart in my hand
05:15 PM roycroft: so i had to make a run to best buy, which is way over in springtucky, to get a new cable
05:16 PM Tom_L: and charged you 2x too much
05:16 PM roycroft: actually they tried but failed
05:17 PM roycroft: i wanted the $15 one
05:17 PM roycroft: they said they did not think they had that one, and wanted me to buy the $30 one
05:17 PM roycroft: these were the folks in the computer area
05:17 PM roycroft: i told them i don't want a $30 one for a few minutes' use here and there, and they sent me to the tv section
05:18 PM roycroft: who had the same $30 one, but then walked me over to a different part of the computer section and found me a box of 2 cables for $15
05:18 PM Tom_L: i'm glad i got that kit that had the psu and cabling otherwise i'd be doing the same thing
05:18 PM roycroft: so i ended up getting it for effectively half price after they tried charging me double
05:18 PM roycroft: and now i have a spare
05:19 PM roycroft: i think the tv guy figured out that if he didn't find me the $15 one i would leave
05:19 PM Tom_L: but the cables in the computer dept are _so_ much better!
05:19 PM roycroft: the computer guys assumed i'd just buy the $30 one because i needed it
05:19 PM roycroft: and i would have left
05:20 PM XXCoder: $30 ones wires is lined with unobtainable
05:20 PM JT-Shop: yeah I'm glad I got the kit with the cable and power supply
05:20 PM roycroft: even though i had already spent way more then $15 worth of frustration driving the beltline over to springtucky
05:20 PM Tom_L: most of the ones i've run across don't care if they sell you anything or not or even wait on you
05:20 PM roycroft: i just used a usb cable for now
05:20 PM roycroft: for power
05:20 PM roycroft: i have some usb to pigtail cables arriving soon for the final install
05:21 PM roycroft: my controller box will have a 5vdc power supply in it, so i'll power the pi from that
05:21 PM Tom_L: i should get a couple usb-c to headphone/charge combo
05:21 PM Tom_L: i have the usb-c to headphone for the phone
05:21 PM roycroft: it's good to have those kinds of cables around, even when you don't need them immediately
05:22 PM roycroft: today was an hour through traffic that should not exist in my city and dealing with dumbass best buy employees
05:22 PM roycroft: all that could have been avoided if i had a cable in stock
05:22 PM Tom_L: the newer galaxys don't have a separate headphone jack
05:23 PM roycroft: most of that gear does blutooth these days
05:23 PM roycroft: and assumes that you'll use that for headphones
05:23 PM Tom_L: yeah
05:23 PM Tom_L: i don't use them that often
05:23 PM roycroft: i need to figure out how to tamp some gravel in an awkward place
05:24 PM roycroft: i'm thinking about making a tamper for my sds hammer drill
05:24 PM roycroft: the nutrias live underneath an outbuilding that's built on a couple skids
05:24 PM roycroft: my cunning plan is to pack gravel around all four sides of the outbuilding to deny them access
05:25 PM roycroft: but nutrias are good diggers, so i'll need to pack it pretty well to deter them from coming back
05:25 PM Tom_L: or chicken wire
05:25 PM roycroft: they'll rip it apart
05:25 PM Tom_L: buried
05:25 PM roycroft: maybe hardware cloth underneath the gravel
05:25 PM Tom_L: 1/2" mesh
05:25 PM roycroft: but the can dig right under it
05:25 PM roycroft: if they do, though, i'll be able to see
05:25 PM roycroft: very easily
05:26 PM roycroft: i may not be able to permanently evict them quickly
05:26 PM roycroft: they're kind of like blackberries - you get rid of them, but they keep coming back unless you're very diligent about denying them a home
05:27 PM JT-Shop: you can stop diggers with a 1x2 wire fence skirt, bend a 90 and let the end be out from the building
05:27 PM roycroft: they need to go
05:27 PM roycroft: they tear up my garden and they poop all over the property
05:27 PM JT-Shop: they are so dumb they go right up to the building and try and dig
05:27 PM JT-Shop: not smart enough to back up 18" and dig
05:28 PM JT-Shop: some folks bury the fence
05:28 PM JT-Shop: it's a huge problem with chicken tenders
05:28 PM roycroft: i have about 2 yards of pea gravel that was in a building years ago that has been sitting in a pile in my yard all these years
05:28 PM roycroft: i have had no use for it, and no desire to haul it away
05:29 PM roycroft: but i had the brilliant idea to toss it underneath the outbuilding where the nutrias live
05:29 PM roycroft: and then i'll pack 3/4 minus gravel around it on all sides
05:29 PM roycroft: i'm thinking of getting something like bear piss or hot pepper oil to spray on the pea gravel
05:30 PM JT-Shop: lol
05:30 PM roycroft: something that they would find extremely unpleasant
05:31 PM roycroft: if we have a cold winter for once they will probably go away
05:31 PM roycroft: they are from the sub-tropics, and if it gets really cold their tails will get frostbitten, and they will likely die
05:32 PM roycroft: they're new to western oregon - they just started showing up in the last few years, when our winters got milder
05:34 PM roycroft: right now i need a good tamper, though
05:34 PM roycroft: and my 8x8 flat plate hand tamper won't work
05:34 PM roycroft: there's not enough clearance
05:34 PM pcw-home: I didn't know Oregon had a Nutria problem
05:35 PM roycroft: only recently
05:35 PM roycroft: and they're headed to california
05:35 PM Tom_L: i tried compiling that mesaflash on my debian install and got a bunch of 64bit errors. i'd imagine a config setting may fix it but i'm not so savvy with that
05:35 PM roycroft: but they showed up in both washington and oregon a few years ago
05:35 PM roycroft: the ones at my house showed up last year
05:36 PM roycroft: and i wasn't even aware that they were here until this spring
05:36 PM roycroft: that's one of the reasons i made such a concerted effort to get rid of all the blackberries this year - i did not want to leave them a place to live/hide
05:37 PM roycroft: there was also a crawl space vent that was missing on my house, and i saw them running into the crawl space a couple times this summer, so i replaced that
05:37 PM roycroft: they also have clawed/eaten through the 30+ year old particle board that was used a siding on another outbuilding
05:38 PM roycroft: i still have to fix that - i've been slowly replacing the particle board walls with t111
05:38 PM roycroft: and may now accelerate replacing the rest of it
05:38 PM roycroft: they ate a big box of fertilizer in that building, and pooped all over the place inside it
05:38 PM XXCoder: roy ugh i need to finish blackberry removal too
05:38 PM pcw-home: Wow, they are huge!
05:38 PM roycroft: mine are trying to grow back, but i mowed them down with a vengeance last weekend
05:39 PM XXCoder: theres so much of it, even after neighbor asked if they could work in our backyard to fix their fence. they asked if it was ok to remove blackberry to do it too
05:39 PM roycroft: and i aim to keep mowing them down until they are gone, gone, gone for good
05:39 PM XXCoder: me: "sure, im working on it"
05:39 PM XXCoder: they removed a lot of it, but theres still lots
05:39 PM roycroft: you should have said "sure, but the entrance to the yard is on the other side of the blackberies - please start there and remove them until you get to the fence"
05:39 PM pcw-home: Our sheep wiped out the blackberries and poison oak in the first year we had them
05:40 PM roycroft: sheep will do that
05:40 PM roycroft: as will goats
05:40 PM roycroft: i considered calling the rent-a-goat folks to get rid of mine
05:40 PM pcw-home: they will also wipe out all small trees unless you protect them
05:40 PM roycroft: yes
05:41 PM pcw-home: they change forests to plains
05:41 PM roycroft: anyway, i need to go look at the sds hammer drill and see if it seems feasible to make a tamper forit
05:41 PM roycroft: i figure if i get an sds drill, cut the end off, and weld the sds shank onto long rod, and then weld a plate to the end of the rod, that might make a nice tamper
05:42 PM roycroft: and i could use it mostly standing up
05:42 PM roycroft: i have a long piece of train rail
05:43 PM roycroft: if i cut a chunk off of that about 8" wide or so, and then cut the rounded top side off the base, that might make a nice tamping plate
05:43 PM roycroft: being rounded over like that would probably work well
05:51 PM roycroft: i thought i had some 5/8" round bar, but apparently not
05:51 PM roycroft: i found some 1/2" and 5/8" o1, but i'm not going to use that on a tamper
05:52 PM roycroft: and for steel round bar, the smallest i have is 1-1/2", which is way too big and heavy for this
05:52 PM roycroft: i wonder if i dare check the home improvement store
05:52 PM roycroft: i wanted some 1/8" x 1-1/4" 308 flat bar last night, and went to the store
05:52 PM roycroft: they had it
05:53 PM roycroft: $94 for a 2' piece
05:53 PM roycroft: i had some 1/8" x 1" in stock, and made do with that
05:53 PM roycroft: so this $8 piece of round bar that i need will probably be $35 at the home improvement store
06:00 PM Tom_L: got any rebar?
06:00 PM Tom_L: or a piece of that at the store would be cheaper than the roundbar
06:01 PM JT-Shop: the proper sds tool might be better if they have one
06:01 PM Tom_L: well where's the fun in that?
06:02 PM JT-Shop: the fence skirt is much easier to do...
06:02 PM Tom_L: that's kinda what i thought
06:02 PM JT-Shop: millions of chicken tenders use that...
06:03 PM Tom_L: bury it bend outward in the trench a bit
06:03 PM * JT-Shop puts the box of cat5e back up as it's not needed
06:03 PM Tom_L: get the wiring moved?
06:03 PM Tom_L: or added...
06:05 PM Tom_L: i ended up putting a router out in the garage as a repeater since the wifi on the garage opener was marginal
06:06 PM JT-Shop: just finished running the ethernet over there
06:06 PM JT-Shop: got a 25' 12awg extension cord back
06:06 PM JT-Shop: don't even have to bury it just fasten the end down with stakes
06:11 PM Tom_L: you putting a switch on the end of it?
06:12 PM JT-Shop: yep in case I need more than the b/w laser printer connected
06:13 PM Tom_L: get a router/switch and you can have better wifi there too
06:13 PM Tom_L: i configured mine to work in sync with main one
06:13 PM JT-Shop: I have wifi in the corner with my 16 port switch
06:28 PM -!- #linuxcnc mode set to +v by ChanServ
08:09 PM roycroft: well my tamper look like it's going to work, albeit very slowly
08:10 PM roycroft: i ended up finding a piece of 1/2" plate that was 3-3/4" x 3-3/4" square, and that ended up being the perfect size
08:12 PM roycroft: and, sadly, my mill died again
08:12 PM roycroft: i was doing a 1/2" plunge cut with an end mill, and feeding very slowly
08:12 PM roycroft: so there's something more that's amiss with the machine
08:12 PM roycroft: this time i'll just get a new motor and a vfd that i can control with linuxcnc
10:15 PM flyback: I saw a neat video by abb on vfd's
10:16 PM flyback: their vfd's was neat
10:16 PM flyback: it had analog and digital inputs
10:16 PM flyback: and the digital could either be used like a real digital control bug or just a bunch of 1/0 switches
10:16 PM flyback: bug/bus
10:16 PM flyback: and their analog shit was nice too
10:16 PM flyback: you could literally adapt this thing to almost anything
10:17 PM flyback: a machine tool from 100 yrs ago
10:18 PM flyback: they basically said If you machine is controled by hamster wheels, our vfd can be configured to count hamsters/second
10:21 PM flyback: then I saw this other video on a vfd controlled pump at a pump station and how the vfs constantely modulated the pump to maintain the pressure
10:22 PM flyback: they tried to canuck the pump up by messing with valves and the vfs kept adjusting
10:22 PM flyback: vfd
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