#linuxcnc Logs
Jun 10 2025
#linuxcnc Calendar
12:00 AM roycroft: it's going to be hot tomorrow again, but not as hot as the last two days
12:14 AM roycroft: then some relief for a week or so at least
12:16 AM xxcoder: yep
12:16 AM xxcoder: I look forward to day after tomorrow
12:58 AM Deejay: moin
01:18 AM lcnc-relay: <meisterdippel@> moin
04:38 AM Tom_L: morning
06:18 AM -!- #linuxcnc mode set to +v by ChanServ
07:51 AM rdtsc-w: haven't tried vcarve, but QCAD-CAM (2.5d) is €110.00 (not currently discounted), has a linuxcnc post-processor (and a dozen more), plus EcmaScript, plus you own that (one) copy forever and can install it on many machines (provided you are the only user), plus works on Win/Mac/Linux, plus a year of free updates with reduced renewal if you decide years later to update, plus lead dev routinely participates in their forums (priceless)
07:51 AM rdtsc-w: QCAD Pro Trial can expire/revert to Community Edition, which is free forever (but of course has reduced features.) So can totally check it out at no cost; even the CAM aspect. https://www.qcad.org/ P.S. LibreCAD is an old, bastard fork of QCAD.
08:36 AM lcnc-relay: <skunkworks8841@> I have never used vcarve.. Is it mainly for picture engraving?
08:36 AM lcnc-relay: <skunkworks8841@> I guess I could look it up
08:38 AM lcnc-relay: <skunkworks8841@> I have used https://www.scorchworks.com/Fengrave/fengrave.html
08:38 AM lcnc-relay: <skunkworks8841@> but not very much
08:42 AM lcnc-relay: <zincboy_ca_on@> No, Vcarve is a great 2/2.5d cam tool for router type machines. You can use it for pictures but I never did.
08:49 AM lcnc-relay: <skunkworks8841@> neat
09:11 AM -!- #linuxcnc mode set to +v by ChanServ
11:18 AM roycroft: it's hot here already, and the heat wave is allegedly over
11:19 AM roycroft: i have a few things in my pickup bed from the old house still, and i think that technically i cannot say i've finished moving until i unload that stuff, but i think it's going to wait another day, until it cools off
11:30 AM lcnc-relay: <skunkworks8841@> so glad this thing is back on the road..
11:30 AM lcnc-relay: <skunkworks8841@> https://photos.app.goo.gl/cFQEVKHGXMJcxbuT9
11:32 AM Tom_L: engage the deer avoidance system
11:33 AM lcnc-relay: <sodakaustik@> I have a spindle brake, but i only use it for emergencies
11:34 AM lcnc-relay: <sodakaustik@> i want to only use it for emegrencies*
11:34 AM lcnc-relay: <sodakaustik@> currently it works with M19 orient and every spindle motion, but it starts getting smelly if i stop from 4000rpm too often
11:34 AM Tom_L: just burning off the morning oil
11:35 AM Tom_L: you might also consider the decel ramp time
11:35 AM Tom_L: that might help
11:35 AM roycroft: or getting a bigger exhaust fan
11:35 AM * roycroft would try to avoide emergencies
11:36 AM lcnc-relay: <sodakaustik@> the spindle brake is a generic KEB unit that i stole from a person
11:36 AM lcnc-relay: <sodakaustik@> I use it with orient to index some parts and drill them
11:36 AM lcnc-relay: <sodakaustik@> _with a second spindle_
11:40 AM Tom_L: one quick thought that came to me, remap M19 to include a variable that gets set. the var gets read and trips a brake relay which otherwise would never get tripped
11:40 AM Tom_L: so if[#var] brake like hell
11:40 AM Tom_L: then reset the var upon the remap exit
11:41 AM Tom_L: you would have to add a relay to the brake resistor
11:41 AM Tom_L: or circuit
11:44 AM lcnc-relay: <sodakaustik@> good idea
12:35 PM lcnc-relay: <sodakaustik@> Actually I want to do it differently, i want an rpm limit above which it is impossible to engage the spindle brake output
12:36 PM lcnc-relay: <sodakaustik@> except on E-stop
12:40 PM lcnc-relay: <sodakaustik@> https://discord.com/channels/@me/882952612943642624/1382048839611187331
12:40 PM lcnc-relay: <sodakaustik@> https://cdn.discordapp.com/attachments/882952612943642624/1382048839266992298/20250610_1921332.mp4?ex=6849bcc8&is=68486b48&hm=5bb7d6de67fd934bbfb19bb9d03570931108b29f2f97d7ac8a283a6e06833014&
12:47 PM lcnc-relay: <sodakaustik@> This is the brake
12:48 PM roycroft: that appears to be a link to an mp4 file that my browser does not like
12:48 PM roycroft: but my questions are this:
12:48 PM roycroft: 1. does the brake get hot when you dump to it?
12:49 PM roycroft: 2. does your vfd support an external resistor brake?
12:49 PM roycroft: some do and some do not, and there are variants of models that do or do not
12:49 PM roycroft: if your brake is not getting hot then you may not be dumping to it, and your vfd may be absorbing all the energy on an e-stop
12:50 PM roycroft: in which case you're lucky that it just smells funny - in most such cases the magic smoke makes an escape and then you're done
12:57 PM Tom_L: install vlc if you want to see it
01:05 PM lcnc-relay: <skunkworks8841@> it runs here on windows 10
01:05 PM lcnc-relay: <skunkworks8841@> 11
01:05 PM lcnc-relay: <skunkworks8841@> whatever
01:05 PM roycroft: i don't need to see it
01:05 PM lcnc-relay: <skunkworks8841@> lol
01:05 PM lcnc-relay: <skunkworks8841@> but but - you will be left out!
01:06 PM roycroft: life is too big for any one person to experience it all
01:06 PM roycroft: i've accepted that i'll be left out upon occasion, and i'm at peace with that
01:07 PM lcnc-relay: <skunkworks8841@> Sure - sound all philosophical and shit..
01:07 PM bjorkintosh: opposite of FOMO: MO:DC
01:07 PM bjorkintosh: FOMO (fear of missing out). MO:DC (missed out, don't care)
01:08 PM bjorkintosh: I just memed it ^
01:08 PM roycroft: the zen of staying alive
01:09 PM bjorkintosh: now this limitation can be blamed directly on the fact that we're not omnipresent
01:09 PM bjorkintosh: which is a serious bummer.
01:22 PM Unterhaus_ is now known as Unterhausen
01:23 PM Unterhausen: penn state surplus had an inappropriate post earlier today. Waiting for the real employees to be locked out.
01:52 PM lcnc-relay: <meisterdippel@> can read now StepperOnline A6 encoder 🙂
01:53 PM lcnc-relay: <meisterdippel@> next will be a T3D China servo
01:54 PM xxcoder: progress!
01:57 PM mrec: did anyone ever attempt to improve the backlash of a double nut ballscrew eg. by adding a shim to the nut spacer?
01:58 PM mrec: I think my system is supposed to have around 50 microns backlash, 28 microns were set by the factory, my plan is to start adding a 20 microns brass shim to it
02:00 PM mrec: after adjusting the backlash to 50 microns the dial gauge seems to be accurate when reversing
02:03 PM lcnc-relay: <sodakaustik@> roycroft: I have a brake resistor, i am only using this brake to orient and drillwith a second spindle (indexing like a rotary table)
02:03 PM lcnc-relay: Brake does get hot when i actuvate it at high rpm
02:03 PM lcnc-relay: <skunkworks8841@> biggest problem is if the ball screw is inconsistant enough - reducing backlash might destroy the balls.
02:03 PM lcnc-relay: <sodakaustik@> The spindle stops very well just with the vfd, i am running it in speed vector control mode with a lenze i550
02:04 PM lcnc-relay: <sodakaustik@> shimming a ballscrew would surely work, but im guessing you need a super thin shim
02:08 PM lcnc-relay: <sodakaustik@> Its a friction brake
02:24 PM lcnc-relay: <sodakaustik@> * an electromagnetic
02:25 PM roycroft: i think that double nuts are more common on acme screws than ball screws, and i've seen double nut acme screw setups that use a set screw to space apart the nuts for backlash mitigation
02:26 PM roycroft: there should not be much backlash with ball screws
02:27 PM roycroft: unless you are making them with a play-doh extruder
02:28 PM xxcoder: if I recall right, theres method using one slightly bigger bearing ball to act as anti-backlash
02:28 PM roycroft: yeah, i've seen folks talk about that
02:29 PM roycroft: if you need higher accuracy, better to just purchase higher grade ball screws/nuts
02:29 PM roycroft: in my view, that is
02:30 PM xxcoder: yeah always better to have better stuff as starting point but not always affordable
02:31 PM xxcoder: I have seen people in yt buy cheaper MBR or ballscrews then just buy bunch of cheaper bearing bulk, then measure and sort balls out and do a rebuild
02:32 PM roycroft: the thing is, if you're using cheap ball screws/nuts and the balls are a wee bit undersize, if you get larger balls you may have problems with them binding in places as the screw is not formed particularly accurately
02:32 PM xxcoder: that alone would improve cheaper ones by quite a bit. it wont fix if screw or rail itself is badly bent tho
02:32 PM roycroft: the undersize balls are used because of the inconsistencies in the screw
02:33 PM roycroft: and because the balls are crap, of course :)
02:33 PM roycroft: sometimes it's best to just live with the hardware you have and compensate as best you can
02:34 PM xxcoder: yeah. I would buy, as minium, some C rated ballscrew. if it doesnt even have any rating then its probably bad
02:34 PM xxcoder: C isnt best but in least if its rated, then it should meet some expections
02:35 PM roycroft: it also depends on what you need to do
02:35 PM xxcoder: C5 is fairly affordable and rating is pretty stright
02:35 PM roycroft: it bugs me when folks think they need a machine that is two orders of magnitude more precise than is required for the parts they need to make
02:35 PM roycroft: it's just a waste of money
02:36 PM roycroft: engineering is about making things good enough, not overbuilding by orders of magnitude
02:36 PM lcnc-relay: <skunkworks8841@> some preload them with a few hundred pounds using belvell washers
02:36 PM xxcoder: I always would go for one order higher. I prefer to be able to measure at more resolution than final output would be, by 10.
02:36 PM roycroft: that works, skunkworks
02:36 PM xxcoder: ie 0.001" for 0.01" outpuit
02:37 PM xxcoder: small errors at 0.001" doesnt matter then
02:37 PM roycroft: it really depends on what you're doing
02:37 PM xxcoder: yeah
02:37 PM roycroft: high precision machines are made with lower precision machines
02:38 PM roycroft: the first lathe was not built to hold 50 millionths, and used as the standard to make lower precision lathes
02:39 PM roycroft: it was made to hold maybe tenths (not ten thousandths), and used to build a higher precision lathe
02:39 PM lcnc-relay: <skunkworks8841@> if you buy the right ball screws - you have no backlash 🙂
02:39 PM roycroft: sure you do
02:39 PM roycroft: but you would have a hard time measuring it with the right screws :)
02:39 PM lcnc-relay: <skunkworks8841@> I would have to look at the spec - the I think the K&T ball screw nuts are preloaded to 1 ton or something like that.
02:40 PM lcnc-relay: <skunkworks8841@> it is crazy
02:40 PM lcnc-relay: <skunkworks8841@> so - unless your cutting forces are above that - there is no backlash.
02:40 PM roycroft: agreed
02:43 PM lcnc-relay: <skunkworks8841@> this was my first attempt of tuning servos on the k&t
02:43 PM lcnc-relay: <skunkworks8841@> https://www.youtube.com/watch?v=FgOqEz5Tk-Y
02:43 PM lcnc-relay: <skunkworks8841@> that is .0001 per tick
02:43 PM lcnc-relay: <skunkworks8841@> (inch)
02:47 PM lcnc-relay: <skunkworks8841@> https://electronicsam.com/images/KandT/conversion/xaxis/ballscrew.JPG
02:50 PM * JT-Shop just pulled an 8' ground rod out with the little kubota tractor
02:50 PM Tom_L: how did you hold the rod?
02:51 PM JT-Shop: chain
02:51 PM JT-Shop: pull end at the bottom and a few wraps then hook and it's like chinese fingers
02:52 PM Tom_L: yeah
02:52 PM Tom_L: until it slips
02:53 PM JT-Shop: never had one slip
02:53 PM Tom_L: not normally
02:57 PM lcnc-relay: <meisterdippel@> got it 🙂 the t3d encoder
02:58 PM lcnc-relay: <skunkworks8841@> I was pulling a chain that was wrapped around the brush grapple.. the hook hooked the chain about 10 times - if I wanted it to do that - it wouldn't
03:00 PM * JT-Shop used to throw a chain on the rigs
03:00 PM JT-Shop: a lot of chain hands were missing a finger...
03:01 PM JT-Shop: https://www.google.com/search?client=firefox-b-1-e&channel=entpr&q=tripping+pipe+throwing+a+chain#fpstate=ive&vld=cid:8d565fe2,vid:HBWoXLurpgU,st:0
03:02 PM JT-Shop: in the end you see him wrapping his hand around the chain so it doesn't whip off
03:02 PM JT-Shop: https://www.youtube.com/shorts/HBWoXLurpgU
03:02 PM JT-Shop: better link
03:10 PM lcnc-relay: <skunkworks8841@> that is just scary
03:11 PM lcnc-relay: <sodakaustik@> xxcoder: i have this in my ballscrews
03:11 PM lcnc-relay: <sodakaustik@> the local hiwin dealer told me they have filled my ballscrews with a few micron oversize balls to ensure an almost preloaded system
03:11 PM lcnc-relay: <sodakaustik@> of course, lowering the lifespan of the screw and nut, but i was okay with this because they are 25mm dia
03:12 PM xxcoder: jt ouch. I'd never try it.
03:12 PM xxcoder: on ballscrew interesting. hopefully it will last plenty of time
03:12 PM JT-Shop: in real life they didn't pull the chain that slow or wait
03:12 PM lcnc-relay: <skunkworks8841@> in real life they are missing fingers?
03:12 PM xxcoder: yeah figured that. which makes it all more impressive
03:13 PM JT-Shop: some did
03:13 PM JT-Shop: you have to concentrate on the job to do it right
03:19 PM lcnc-relay: <sodakaustik@> Yep, i just checked, i have
03:19 PM lcnc-relay: "T5 (highest precision of the rolled type 0.032 deviation over 300mm) screws, light preload - 0.02%"
03:21 PM lcnc-relay: <sodakaustik@> As for preloading trapezoidal threads i would say its a no-no, but achieving backlash as low as the film thickness (around 0.01mm) would be completely fine
04:04 PM lcnc-relay: <voiditswarranty@> re: people over-concerned about backlash: The rest of the system can surprise when measured as a whole too. People get really concerned about ballscrews, and then wonder why they still have things not ending up where they expect after they stick double nut ballscrews in. One of my light mills I can cause a measurable deviation by resting my hand on the head while it cuts, with no change in direction making backlash a...
04:04 PM lcnc-relay: ... non-issue in that case. I see people on youtube putting high end ballscrews and doing tonnes of software compensation on a noodle of a machine all the time.
04:51 PM -!- #linuxcnc mode set to +v by ChanServ
04:55 PM lcnc-relay: <sodakaustik@> yep, lack of stiffness can be a problem
05:06 PM lcnc-relay: <voiditswarranty@> or those cheap machines that just have rough milled dovetails, not ground at all 😄 thankfully those are getting harder to find
05:15 PM roycroft: those things can be fixed
05:42 PM lcnc-relay: <skunkworks8841@> well - the truck made it to recycling and back.. 2660lbs..
05:42 PM lcnc-relay: <skunkworks8841@> sully had fun
05:42 PM lcnc-relay: <skunkworks8841@> Tom_L: dump worked.
05:43 PM Tom_L: yay
05:43 PM Tom_L: pretty much a full load
05:43 PM lcnc-relay: <skunkworks8841@> I have it down now - I have a crow bar with me and can engage/disengage the pto without getting dirty or burnt from the exhaust
05:43 PM lcnc-relay: <skunkworks8841@> yes - that truck is rated for 1.5 tons
05:44 PM Tom_L: bet the trip out was smoother than the trip back
05:45 PM lcnc-relay: <skunkworks8841@> well... The thing likes to shimmy above 35mph when full... But will go 45 when not full.
05:45 PM lcnc-relay: <skunkworks8841@> it needs a little tlc
05:45 PM Tom_L: it runs.
05:45 PM lcnc-relay: <skunkworks8841@> so far
05:46 PM lcnc-relay: <skunkworks8841@> still has oil pressure when it is warm
05:49 PM Tom_L: does that thing have an oil bath air filter or is it newer than that?
05:49 PM Tom_L: i forget when those were phased out
05:50 PM roycroft: my '58 chevy pickup had an oil bath air filter, and my '64 chevy pickup did not
05:50 PM roycroft: that at least narrows things down a bit
05:50 PM Tom_L: were phased out of most vehicles in the late 1950s and early 1960s
05:51 PM Tom_L: 1972 in the US was the last of the oil bath air cleaners for VW Beetles
05:51 PM roycroft: i just made a quick 2" square shape in ad 2
05:51 PM roycroft: i'm going to go see if i can index accurately from both sides with the shaper origin now
05:51 PM roycroft: i just watched some videos on the rectangle probe tool, and i was doing it correctly
05:52 PM roycroft: so i don't know why things misaligned yesterday - it could be that my old eyes did not place the object on the proper grid lines on one side
05:55 PM lcnc-relay: <skunkworks8841@> Tom_L: the engine has been replace with a early 60's strait six.. So it has an external oil filter canister
05:57 PM lcnc-relay: <skunkworks8841@> lol - reading.. It as a normal paper air filter
06:06 PM roycroft: well i figured it out already and it's really stupid on shaper's part
06:06 PM roycroft: they have this new feature where i can probe a rectangle - touch off on lower x in two places to establish a line, touch off on y on the right side, then touch off on the upper x, then on the left side y
06:07 PM roycroft: then it knows exactly where the part is
06:07 PM roycroft: and creates a grid
06:07 PM roycroft: that's all fine, and what one expects
06:07 PM roycroft: but what i found out just now is that the grid does not align with any of the edges of the part exactly
06:08 PM roycroft: it's overlaid randomly
06:08 PM roycroft: well, not randomly
06:08 PM roycroft: but it's overlaid using secret shaper logic
06:09 PM JT-Shop: lol
06:09 PM roycroft: i want my part to be centered 2" from the right and 1.75" from the bottom
06:09 PM roycroft: but i don't have any grid lines in those locations
06:10 PM roycroft: so now i have to figure out the secret shaper logic and how to translate that to the real world
06:14 PM roycroft: i'm thinking that i'm getting too fancy
06:15 PM roycroft: the old grid tool should work fine for me - there i do two probes on x to establish that plane and one on y to establish that plane, and the grid origin is on the intersection of the x and y planes
06:15 PM roycroft: i don't need the height and width of the part, because the feature is indexed off two edges
06:15 PM roycroft: but that doesn't mean that shaper's new feature isn't stupid
06:16 PM roycroft: it just means i don't need it so it doesn't matter right now that it's stupid
06:16 PM * roycroft heads back out to do it the easy way
06:17 PM * JT-Shop calls it a night
06:35 PM roycroft: i'll call that a success
06:35 PM roycroft: i was cutting a 2" square from both sides
06:36 PM roycroft: first, the square itself measured 1.9995" x 1.9985", assuming measuring to tenths has any meaning at all with soft wood
06:37 PM roycroft: the top side and the bottom side were not perfectly aligned though - they were off by ~0.004" in both x and y
06:37 PM roycroft: but i was indexing off of a piece of rough cut pine
06:37 PM roycroft: if the edges had been smooth it would probably be even better
06:37 PM roycroft: i'll take 0.004" when routing wood though
06:37 PM roycroft: a few seconds of sanding will clean that up
06:45 PM Tom_L: glad you got it under control
06:46 PM roycroft: me too
06:46 PM roycroft: i have to remember not to get fancy when fancy is not required
06:47 PM roycroft: and that shaper design their software to make sense to artists, not engineers
06:47 PM Tom_L: or machinists aparently
06:47 PM roycroft: i'm a little of both, but more engineer than artist
06:47 PM roycroft: i place machinists under the engineer umbrella
06:48 PM Tom_L: you'd think you could index off a feature
06:48 PM Tom_L: it's not rocket science
06:48 PM roycroft: i can, if i have a small enough probe
06:48 PM Tom_L: o
06:48 PM roycroft: i have to set up a grid for that
06:48 PM Tom_L: i'm pretty happy with the cheap probe i got for testing
06:49 PM roycroft: and i can't place a part 1.342" from the edge using a grid
06:49 PM roycroft: unless i set up a grid spacing of 1.342" (or divisor thereof) and index off the edge
06:50 PM roycroft: but i won't normally need to do stuff like that
06:50 PM Tom_L: https://www.amazon.com/V5-Waterproof-Anti-roll-Compatible-Finder-NO/dp/B0BDSDSJF6
06:50 PM roycroft: this is all done on-tool, and the tool has a small screen
06:50 PM Tom_L: i've considered getting a spare
06:50 PM roycroft: so i understand some of the compromises they had to make
06:51 PM Tom_L: would do good on your small cnc
06:51 PM Tom_L: or larger one for that matter
06:51 PM roycroft: for the larger one perhaps
06:51 PM roycroft: it's too big for the small one
06:51 PM xxcoder: that would be too long I think, for mini royter
06:51 PM Tom_L: it's pretty tiny
06:51 PM roycroft: and i already got a touch off plate for the mini-router
06:52 PM xxcoder: I was designing in my brain, much more shallow probe but never made design
06:52 PM xxcoder: it would have been around 1 cm in total, including probe
06:52 PM Tom_L: end to tip is 2.64"
06:53 PM Tom_L: square part is 25mm
06:53 PM roycroft: https://www.ebay.com/itm/356880583113
06:53 PM roycroft: i got that
06:53 PM Tom_L: for touchoff yeah
06:54 PM xxcoder: thats nice. very hort in height
06:54 PM roycroft: yes, it should be fine
06:54 PM xxcoder: which is requirement for mini
06:54 PM Tom_L: just looks like a pcb
06:54 PM roycroft: it is
06:54 PM Tom_L: which are ~.062"
06:54 PM roycroft: it's just a pcb with a conductive coating
06:55 PM Tom_L: i had some thin sheet that was half that
06:55 PM Tom_L: http://tom-itx.no-ip.biz:443/~webpage/etching/Copper2.jpg
06:55 PM Tom_L: you could have made one :)
06:55 PM roycroft: i don't know how thick it is
06:55 PM roycroft: i'll know by the time i'm ready to use it
06:55 PM Tom_L: that's standard FR4
06:56 PM xxcoder: pcb thickness should work just fine. just would need to figure trigger heigh to subtract for zero
06:56 PM roycroft: yes, i could have made one
06:56 PM roycroft: but it would take a bit of time, and would still cost me a few dollars
06:56 PM Tom_L: i have some full sheets but had to cut them in half to store
06:56 PM roycroft: for $18 all i had to do was click a button and open a box
06:56 PM Tom_L: http://tom-itx.no-ip.biz:443/~webpage/etching/Copper3.jpg
06:56 PM Tom_L: half sheet
06:57 PM roycroft: the next round of components for the mini-router controller should arrive tomorrow
06:58 PM roycroft: and i just ordered what i think are the last couple things
06:58 PM xxcoder: cant wait to see it running and making chips lol
06:58 PM roycroft: now that i have the 2-sided indexing issue resolved with the shaper origin i'm ready to build the controller cabinet
06:59 PM roycroft: i still have a couple decisions to make - the front panel could either be a metal insert panel or i can surface mount the components directly on the wood side
06:59 PM roycroft: in the back i'll probably insert a metal panel, in case i ever want to reorganize things there
06:59 PM xxcoder: any concerns about wood corrision on boards etc?
07:00 PM Tom_L: i'm sure they'll be finished
07:00 PM roycroft: the front will just be power, status indicators, and maybe a couple usb ports
07:00 PM roycroft: no, no worries there
07:00 PM roycroft: and yes, they'll be finished
07:00 PM xxcoder: ahh ok
07:00 PM roycroft: at the very least there will be shellac and wax
07:00 PM roycroft: no wax on the inside
07:00 PM xxcoder: wasnt sure on chemistry of wood and finishes vs circuit board etc
07:00 PM roycroft: but shellac will be sufficient to keep the tannins tamed
07:01 PM roycroft: if there are tannins present
07:01 PM roycroft: i'm not sure what the wood is
07:01 PM roycroft: i would call it generic southeast asian mahogany-like wood
07:02 PM xxcoder: is there programs to id wood type by picture of raw wood?
07:02 PM roycroft: the base, where all the components will be mounted except for the io and indicators, will be birch plywood
07:02 PM roycroft: and i've had electronics mounted to birch plywood for decades, literally, with no ill effects
07:02 PM roycroft: there are utilities like that, but i doubt they would come up with a better answer than i just did
07:03 PM * roycroft knows how to recognize a tree from quite a long way away
07:03 PM roycroft: number one, the larch
07:03 PM roycroft: the larch
07:03 PM roycroft: the larch
07:05 PM roycroft: https://www.youtube.com/watch?v=H0zVsxUbbjM
07:44 PM xxcoder: had chicken tacos. yum
07:45 PM roycroft: it's tostada tuesday here
07:46 PM roycroft: and i should probably get to fixing dinner soon
08:39 PM xxcoder: heat is starting to fade away, and I havent turned myself into swamp cooler yet!
09:02 PM roycroft: it was a bit cooler here today
09:02 PM roycroft: or less unbearably hot, rather
09:02 PM xxcoder: yeah
09:02 PM roycroft: i turned the ac on in the shop mid-morning, and it was actually comfortable in there when i went out after work to do the test cuts with the shaper origin
09:07 PM xxcoder: glad it was cooler, I was tired of yogurt lol
09:07 PM roycroft: yeah, and it will be significantly cooler tomorrow
09:37 PM roycroft: i think i need a vacuum clamp setup for my shaper workstation
09:37 PM roycroft: i'm using an awful lot of double sided tape, and that seems really wasteful
09:38 PM roycroft: i think the mini-router needs a vacuum clamp setup as well
10:47 PM roycroft: i am puzzled, and feel that six minutes of my life was just stolen from me
10:47 PM roycroft: the video purports to be "vacuum table for shaper origin"
10:47 PM roycroft: i thought it might be interesting to see what the person did
10:47 PM roycroft: he built a vacuum table to hold down his spoil board
10:47 PM roycroft: and then used double sided tape to hold the workpiece to the spoil board
11:02 PM lcnc-relay: <skunkworks8841@> Lol
11:21 PM roycroft: the thing is, if you use mdf for the spoil board, it is porous enough that you can just lay the workpiece on top of it and the vacuum will hold both down
11:23 PM xxcoder: tape probably is for sideload
11:23 PM xxcoder: thougfh if gcode is correct, theres hardly any with wood cut
11:28 PM roycroft: the whole point of a vacuum table is to not have to use double sided tape
11:30 PM xxcoder: true
11:31 PM roycroft: and i just remembered that i bought a sheet of phenolic plywood a couple years ago to make a jig that i never made
11:32 PM roycroft: that would be perfect for a vacuum table
11:40 PM roycroft: i even know where it is, because it was expensive and easily damaged, so when i moved i brought it here in my car and put it in the studio