#linuxcnc Logs

Jun 17 2023

01:18 AM martinb[m] is now known as martinb26840[m]
04:19 AM JT-Cave: morning
04:28 AM JT-Cave: damn I got a bug in mesact that gives me a following error with a 7i96s configuration
04:29 AM travis_farmer[m4: is it a bug, or an unexpected program feature? ;-)
04:30 AM JT-Cave: it's a bug and I can't spot it
04:34 AM JT-Cave: I think I see the issue it's with feerror
04:48 AM JT-Cave: too many 000000's
04:48 AM XXCoder: buffer overrun of some kind?
04:53 AM JT-Cave: too small of a number for inch
04:53 AM JT-Cave: Tom_L, bug fix for mesact
05:12 AM JT-Cave: I had it default to ferror 0.0002" and min_ferror 0.0001"
05:12 AM JT-Cave: should have been 0.002" and 0.001"
05:14 AM JT-Cave: 30 minutes till sunrise... gotta get moving
05:14 AM travis_farmer[m4: what's at sunrise?
05:14 AM JT-Cave: doors open and lights come on in the coops
05:15 AM travis_farmer[m4: oh, that's right
05:15 AM JT-Cave: and we have to depart at 6:50am this morning
05:15 AM travis_farmer[m4: "we"? am i coming too? ;-)
05:22 AM Tom_L: morning
05:30 AM Deejay: hi
05:37 AM JT-Cave: you would have to ride in either the trunk or the frunk
05:37 AM Tom_L: the front would be rather exciting
05:38 AM JT-Cave: and small
05:38 AM JT-Cave: rooster just crowed
05:38 AM Tom_L: oh that's right, that one is a mid engine
05:38 AM travis_farmer[m4: yeah, i don't think my fat-ass would fit...
05:38 AM XXCoder: meh just place chair on roof
05:38 AM XXCoder: wear a face sheild
05:39 AM travis_farmer[m4: lol
05:39 AM Tom_L: JT-Cave, have you noticed an excess of bees there this year? i hear they are bad across the US this year and are somewhat agressive
05:39 AM Tom_L: o
05:40 AM Tom_L: i've noticed more around here
05:40 AM JT-Cave: not noticed many here
05:41 AM Tom_L: just hope it's not those really agressive ones
06:40 AM funkenjaeger[m] is now known as funkenjaeger0[m]
07:19 AM Gildemeister[m] is now known as gildemeister0[m]
09:36 AM Unterhaus_: I haven't seen any bees outside of the carpenter bees that are eating our shed
09:36 AM Unterhaus_: And the wasps are killing them off
10:03 AM roycroft: there are fewer bees around here than there used to be
10:13 AM travis_farmer[m4: just to state how my day is going... i mounted my laser, and connected the wire at the head of the machine... and tested it... nothing. checked the voltage at the control panel... good. yet still no laser working... turns out i have to connect the wire from the machine, to the control panel... have to fix that after lunch.
10:41 AM roycroft: wow
10:42 AM roycroft: it is mid-june, and we have snow in the forecast for the mountains
10:42 AM Tom_L: better pack your snow skis
10:53 AM roycroft: i'm not heading up there
10:53 AM roycroft: but i can't remember snow in june, ever
10:53 AM roycroft: not here
10:53 AM roycroft: when i lived up in washington, yes
10:54 AM roycroft: it's only going to snow in the passes and above, but still, that's really unusual
10:55 AM roycroft: it looks like rain in the valley starting just after midnight, and continuing for three days
10:55 AM roycroft: i guess i had best get my laundry and yard work done today
11:02 AM Tom_L: was gonna mow but it rained
11:07 AM roycroft: i should be good for today, but not after
11:13 AM Tom_L: tweaking a few bits of code instead
11:21 AM skunkworks[m]: Lol.. Big discusion on the monach 10ee drive on home shop machinist.. I was always planning on running the dc motor from linuxcnc - 2 drives - one for the rotor and one for the field. (for field weakening...) I think it would run pretty darn well for some cheap servo drives..
11:23 AM skunkworks[m]: Currently running with 80's? maybe 70's vintage scr drive from the junk yard - field weakening with a large variable resisstor - doesn't get to top speed currently.
01:29 PM -!- #linuxcnc mode set to +v by ChanServ
01:29 PM travis_farmer[m4: yup... yet another miserable rainy day...
01:32 PM roycroft: this time of year a rainy day is nice - it's an opportunity to work in the shop/house without feeling guilty about not getting outdoor chores done
01:33 PM travis_farmer[m4: yeah, i would be working in the shop, but i would rather not track a bunch of mud onto the floor...
01:34 PM roycroft: there is a device called a 'boot scraper' :)
01:35 PM travis_farmer[m4: yes, i am aware ;-) but i neither have one, nor have money available for non-emergencies ;-)
01:36 PM roycroft: you can make one for next to nothing
01:37 PM * roycroft wonders if the harbor freight vacuum pumps actually work
01:38 PM travis_farmer[m4: ok, let me put it this way. it is warmer inside, and i would rather enjoy the warmth, and do some online research until i drift off into a nap, then i would work in the shop at present ;-)
01:39 PM roycroft: i have the venturi vacuum pump that i built years ago and which works great for my vacuum bags
01:40 PM roycroft: but i'm starting to do more vacuum clamping at the workbench, and i think that's what i want to do for my shaper workstation for holding down parts horizontally
01:40 PM travis_farmer[m4: i bet the HFT vacuum pump is a noisy rattle trap
01:40 PM roycroft: a small pump that would fit under the bench would be nice
01:40 PM roycroft: it might be
01:40 PM roycroft: they just sent me a 20% off coupon
01:40 PM roycroft: so maybe i'll try one
01:40 PM roycroft: i know how to return it
01:40 PM travis_farmer[m4: i have been looking at them, so let me know if they are noisy
01:41 PM roycroft: and if it makes a lot of noise, i can always hook up a vacuum reservoir so that it doesn't cycle often
01:41 PM roycroft: if i get one i'll let you know
01:41 PM travis_farmer[m4: good point
01:42 PM travis_farmer[m4: i have seen people use a shop-vacuum for hold-down, but i never thought it would work well
01:42 PM roycroft: a lot of folks use shop vacs for vacuum hold-down systems, and those are not only noisy, they have to run continuously to hold vacuum
01:42 PM roycroft: they work well, from what i've seen
01:42 PM roycroft: but with the above problems
01:42 PM travis_farmer[m4: yeah
01:43 PM Scopeuk: Generally you don't need much vacuum to pin things when your using big flat objects
01:44 PM Scopeuk: Even 1 or 2 psi becomes a large force over a large work piece
01:46 PM roycroft: yes, i know it won't take much
01:46 PM roycroft: and keep in mind, i would be using this vacuum pump primarily when i'm doing operations with power tools
01:46 PM roycroft: the shaper origin specifically right now
01:47 PM roycroft: so i'll already have a loud, whiney, annoying universal motor spinning much closer to me than the vacuum pump would be
01:47 PM roycroft: hearing protection is already involved
01:47 PM roycroft: i've been toying with mechanical clamping mechanisms all morning, and all of them have drawbacks
01:48 PM roycroft: vacuum clamping eliminates all those drawbacks
01:51 PM roycroft: i have a 20% off coupon for hf, but it excludes compressors
01:51 PM roycroft: i'd be willing to bet that they consider a vacuum pump a compressor
01:56 PM leshik[m] is now known as leshik12470[m]
01:57 PM Scopeuk: throw it in basket, see what they have to say when you apply it. failing that leave it in there 24 to 48 hours and see what offer the bot emails out
01:57 PM roycroft: paul mccartney turns 81 tomorrow
01:57 PM roycroft: i remember him when he was a young lad
01:57 PM roycroft: i was a much younger lad, of course :)
01:58 PM roycroft: well if i get one i'll just go pick it up at the store that's near my house
01:58 PM roycroft: but i should probably build one of the clamping jigs first and test it with my current vacuum pump
01:59 PM roycroft: https://roycroft.us/Vacuum_Pump.jpeg
01:59 PM roycroft: that's what i use for my vacuum bags
02:00 PM roycroft: https://roycroft.us/Vacuum_Bag.jpeg
02:01 PM roycroft: that pic almost brings a tear to my eye
02:01 PM roycroft: in the background you can see my edge sander
02:01 PM roycroft: a machine that i really loved, but sold to clear out some shop floor real estate
02:01 PM roycroft: i miss that machine, a lot
02:01 PM travis_farmer[m4: sure that isn't a moonshine distillery? lots of plumbing ;-)
02:02 PM roycroft: yeah, the design really sucks
02:02 PM travis_farmer[m4: he he he
02:03 PM roycroft: i've actually been planning on redoing the plumbing to make it more compact
02:03 PM roycroft: perhaps if i did that i would not be thinking about an electric vacuum pump
02:04 PM roycroft: the venturi pump works really great
02:04 PM roycroft: it's just more bulky than i like
02:05 PM roycroft: there has to be at least $100 worth of brass fittings on that thing
02:05 PM roycroft: $100 in 2008 prices, which is about when i built that pump
02:06 PM travis_farmer[m4: does it use tons of air for the venturi?
02:10 PM MOT_joe[m] is now known as mot_joe0[m]
02:20 PM roycroft: no
02:21 PM roycroft: and with the reserve tank, it cycles every 2-3 hours when i'm using a vacuum bag
02:22 PM roycroft: standard disclaimer: those air tanks are designed for pressure applications, not vacuum applications, and i cannot recommend using one for a vacuum reserve
02:22 PM roycroft: that said, mine's been in use for 15 years or so and it hasn't implode yet or otherwise put my eye out!
02:25 PM * roycroft heads out to engage in a bramble battle
02:36 PM flyback: yeah
02:36 PM flyback: don't fuck around with that stuff
02:37 PM flyback: unless you like pulling chunks of tank out of your ass
02:38 PM flyback: implosions sometimes recoil outward
02:38 PM flyback: like crt monitors
03:11 PM * cabbagedreams[m] uploaded an image: (136KiB) < https://libera.ems.host/_matrix/media/v3/download/jauriarts.org/fZGvTRZApPQdZxpuriNKCiyH/IMG_20230617_161006.jpg >
03:11 PM cabbagedreams[m]: Anyone know what lathe this is?
03:11 PM jasen71: tos mn70c
03:12 PM jasen71: mn80c
03:27 PM cabbagedreams[m]: Nice. Thanks
03:42 PM travis_farmer[m4: rain let up for a moment, so i ran out to the shop to connect up the laser and test. i ran a lightburn test, and immediately realized i had configured LCNC wrong. i had it set to switch on the relay whenever the laser power was above 0 (zero). this caused the relay to flutter... so i reconfigured to use M64 to turn on at the start of the program, and M65 to shut off the relay at the end. this should work better when i next test. pur
03:42 PM travis_farmer[m4: mistake!
03:51 PM Tom_itx: don't burn the shop down with your new toy
03:51 PM travis_farmer[m4: :-)
03:52 PM Tom_itx: it's happened here before
03:52 PM Tom_itx is now known as Tom_L
03:52 PM Unterhaus_: I suppose I should pay attention to the smoke situation, since it screws me up so much
03:52 PM travis_farmer[m4: if the laser starts a fire, i will be sure and douse it with gasoline to put it out ;-)
03:53 PM Unterhaus_ is now known as Unterhausen
03:53 PM Tom_L: you really should have a plan
03:54 PM travis_farmer[m4: it may be a good idea to have a fire extinguisher handy...
03:55 PM Tom_L: dude walked out to check on the pc side and came back to a fire
03:56 PM travis_farmer[m4: i wonder if the laser-assist will blow away the fire, or kindle it to a full burn...
03:56 PM Tom_L: good to know these things ahead of time
03:57 PM travis_farmer[m4: yeah, i hadn't considered it starting a fire....
03:57 PM Tom_L: you _are_ burning things with it
03:58 PM travis_farmer[m4: well, yeah... but... i don't know what i was thinking...
04:01 PM travis_farmer[m4: when i get some funding, i will make sure and get a good sized fire extinguisher.
04:01 PM Cavemonster[m] is now known as cave_monster0[m]
04:12 PM travis_farmer[m4: hmmm, i should work out a smoke removal system, too...
04:22 PM JT-Shop: yo
04:25 PM travis_farmer[m4: such a rainy crappy day... hope tomorrow is somehow better...
04:26 PM JT-Shop: send it here
04:26 PM travis_farmer[m4: the rain, or crappy day?
04:39 PM roycroft: i have a useable pickup again
04:39 PM roycroft: in other words, i finally made it to the recycle center and dumped everything
04:46 PM * JT-Shop ponders how to accurately position blanks in the xTool with Lightburn?
04:47 PM roycroft: i haven't sorted that out yet, jt-shop
04:47 PM roycroft: the laser crowd seem to be into using the framing feature and eyeballing things
04:47 PM roycroft: the concept of accurately indexing seems to be something most of them haven't been exposed to
04:48 PM roycroft: the laser machine does have limit switches, so i should think there would be a way to home the laser and figure out how to do offsets from there
04:49 PM roycroft: that is something i was planning on figuring out after i got the laser in its enclosure, with the honeycomb in a fixed position
04:50 PM * roycroft has to finish making his router sled this afternoon
04:51 PM JT-Shop: that's what I was thinking the xTool homes so xy are known to it...
04:53 PM roycroft: it's the only sensible way i can figure it out
04:54 PM roycroft: my thinking is i home the xtool to zero it
04:54 PM roycroft: the honeycomb will be in a fixed position, and i can figure out the offsets from the laser home to a corner of the honeycomb
04:54 PM roycroft: and then i can index the parts to the honeycomb
04:57 PM JT-Shop: it would be much better if 0-0 on the honeycomb was at the left rear corner...
05:03 PM XXCoder: travis_farmer[m4: yeah laser smoke isnt great stuff, superfine particles so it can go pretty deep in lungs. id suggest wear a mask and vent as much air out as possible
05:05 PM XXCoder: looks like fun youtube videos today. blondihack one is great faq
05:33 PM JT-Shop: Leo has a new video today
05:38 PM XXCoder: nice frank video too. he reworks arbor on his old sawtable
05:39 PM XXCoder: other projects related to it but yeah
05:49 PM JT-Shop: https://www.youtube.com/watch?v=lt3Lso4llEo
05:51 PM XXCoder: so franks sawtable is made from 3 sawtables and a table lol
05:51 PM XXCoder: as before it was 2 sawtables and 2 tables
05:55 PM XXCoder: frank https://youtu.be/BLJhLq8ZQHE
06:34 PM XXCoder: LOL https://youtu.be/93D6pFXPePg
06:35 PM XXCoder: guy sees 3 guys walking in trail and looking down on phones
06:35 PM XXCoder: so he makes electric thing that was ispired by it
07:29 PM CAKESLOB: glad im not a phone guy
07:29 PM XXCoder: me either
07:30 PM XXCoder: im book guy lol
07:30 PM XXCoder: in years ago, before I had driving license, i used to walk for a hour to library or elsewhere reading a book
07:30 PM XXCoder: looking up only for safety like cross road
07:30 PM CAKESLOB: like the pic of the ny subway
07:31 PM CAKESLOB: everyone reading the paper
07:31 PM CAKESLOB: now its everyone phone
07:31 PM CAKESLOB: i wish I was that smarty
07:31 PM CAKESLOB: im a tv guy
07:31 PM CAKESLOB: but at least im not a phone guy
07:32 PM CAKESLOB: unless technical manuals count as books
07:35 PM solarwind: Used engine oil as cutting fluid for my mag drill - yay or nay?
07:36 PM solarwind: Oh forgot about it being toxic waste, never mind
07:37 PM CAKESLOB: ha
07:38 PM CAKESLOB: not gonna say I havent used old engine oil, but used oil is pretty carcigenic
07:41 PM CAKESLOB: climbing trees is a lot scarier when your over 30
07:42 PM CAKESLOB: I dont think it would have went over well with the boss if I called in monday because I fell from a tree
08:01 PM Tom_L: solarwind, heat your shop with it instead
08:03 PM XXCoder: roycroft: https://youtu.be/2NQv0sN-sMo
08:03 PM XXCoder: pretty cool. he have pre-finished wood laser engraved then he uses watered down black paint and effect is awesome
08:10 PM Unterhaus_: whenever I tell someone that they hooked things up wrong and how to fix it, they always hate me after
08:11 PM Unterhaus_: or maybe they already hated me, probably that's it
08:11 PM Unterhaus_ is now known as unterhausn
08:12 PM unterhausn: how long after they disconnect me do they hold on to my nick?
08:12 PM XXCoder: did you include some "nice" words in explanation? lol
08:12 PM XXCoder: not sure but not too long
08:13 PM XXCoder: 250 seconds? something
08:33 PM Tom_L: unterhausn, if you're in a hurry you can ghost the nick
08:34 PM unterhausn is now known as Unterhausen
08:35 PM Tom_L: GHOST disconnects an old user session, or somebody attempting to use your nickname without authorization.
08:35 PM XXCoder: yep. I made cusstom command in hexchat for that lol
08:35 PM XXCoder: so its just /g <nick>
08:35 PM Unterhausen: I think the problem with explaining wiring issues is that it doesn't make sense to people at first. So they blame me
08:36 PM XXCoder: not too bad machining videos sat
08:36 PM XXCoder: though higher than normal new stuff lol
08:36 PM XXCoder: one guy gets laser and one guy gets new lathe
08:42 PM Unterhausen: bird built a nest in our shed. They stole an entire 5' long piece of twine from my tomato patch
09:27 PM -!- #linuxcnc mode set to +v by ChanServ
09:43 PM youhouka[m]: I'm having trouble with ini expressions in gcode
09:43 PM youhouka[m]: (debug, "Tool Sensor #<_ini[TOOLSENSOR]SAFE_MOVE>")
09:43 PM youhouka[m]: I'm pretty sure I have this variable set, but it's just debugging it out as ########
09:44 PM youhouka[m]: s/########/######/
09:45 PM youhouka[m]: I don't have ini_vars set to zero... though I'm going to try forcing it to 1 now
09:52 PM alhinai21[m] is now known as alhinai0[m]
09:58 PM youhouka[m]: nothing in the log output either... I find that odd
10:01 PM youhouka[m]: no... you have got to be kidding me
10:01 PM youhouka[m]: does it only understand floats?
10:02 PM youhouka[m]: it doesn't inline a string, it forces it to be a float value and if it can't it makes it ######?
10:09 PM Tom_L: did you assign it a value in the ini?
10:09 PM Tom_L: that may determine the var type
10:09 PM Tom_L: http://linuxcnc.org/docs/stable/html/config/ini-config.html#cha:ini-configuration
11:00 PM youhouka[m]: yes, when you use it in gcode the value must be a float
11:00 PM youhouka[m]: I had given it a string
11:12 PM Tom_L: Wind Speed W 51 G 71 mph
11:12 PM Tom_L: gettin a little weather here
11:17 PM roycroft: the rain might start here tonight
11:17 PM roycroft: but thunderstorms are gone from the forecast now
11:17 PM XXCoder: it rained few times here so far
11:17 PM roycroft: yes, it's coming down from the north
11:17 PM roycroft: vancouver had rain thursday and friday
11:18 PM roycroft: vancouver bc, that is, not vancouver wa
11:18 PM XXCoder: did you see the linked video? its interesting. wood is already smoothed and coated. then he uses laser to burn off coating and use black duluted paint to color the engravings
11:18 PM roycroft: it's probably raining in vancover wa now
11:18 PM XXCoder: not shown, but I presume he covers it again to protect the color
11:18 PM roycroft: no, i did not see a linked video
11:18 PM roycroft: keep in mind that i have a tiny scroll buffer
11:19 PM XXCoder: its 500 lines for me
11:19 PM roycroft: i'm not sure what mine is, but it's way less than that
11:19 PM roycroft: more like 50 or 75
11:19 PM XXCoder: roycroft: https://youtu.be/2NQv0sN-sMo
11:19 PM roycroft: thanks
11:19 PM XXCoder: welcome
11:20 PM roycroft: i'm watching something else right now, but i'll check that out in a bit
11:25 PM XXCoder: most of video is pretty meh but that sheet thing is interesting
11:27 PM XXCoder: 7:13 if want skip stuff
11:57 PM thorhian[m]: So I've been thinking about the idea of making a rigid moving gantry design machine for a large workpiece area. All of the designs I've seen usually have the Z axis supported only on side, attached to the moving gantry X axis. This usually make it difficult to keep the Z axis/spindle very rigid, especially when the Z axis is lowered down a lot, amplifying forces to rotate the spindle assembly due to the extra leverage. I had thought for i
11:57 PM thorhian[m]: that has a large gantry with a slot parallel to the X axis of the machine where the Z/Spindle assembly is supported in positive and negative Y directions (possibly with 4 rails for the Z axis instead of just two) to better resist the twisting caused by cutting forces. Does that make sense to anyone, or should I draw pictures to better describe it? I'm not sure if this is a stupid idea or not. Main concern off the top of my head would be t
11:57 PM thorhian[m]: carriages binding due to temperature fluctuations as the gantry grows and shrinks.