#linuxcnc Logs
Nov 18 2025
#linuxcnc Calendar
12:02 AM lcnc-relay: <Olli (RIO)@> moin
12:20 AM roycroft: back before pbs, even
12:21 AM roycroft: i was watching wttw in the mid '60s, before pbs existed
12:21 AM roycroft: back when they would put up a test pattern during much of the day when there was no programming, and they went off the air at midnight
01:08 AM lcnc-relay: <TurBoss> morning
01:08 AM xxcoder: I barely remember those test patterns
01:13 AM xxcoder: never saw indian one on tv, but those color bars one yeah
01:18 AM xxcoder: did see indian pattern one on tv... in show that had tv showing it in it lol
01:40 AM Deejay: moin
04:09 AM lcnc-relay: <Travis Farmer@> Morning, been a while since i was chatting here.. 🙂
04:09 AM Tom_L: morning
06:24 AM lcnc-relay: <Lucid Nonsense@> Cloudflare dona booboo
07:45 AM rdtsc-w: https://downdetector.com/status/cloudflare sure did
07:46 AM rdtsc-w: it's cascaded to... well, everything... https://downdetector.com
07:48 AM rdtsc-w: must've happened because roycroft was asleep :)
09:03 AM lcnc-relay: <Lesliet@> well, let's make sure THAT doesn't happen again
09:03 AM lcnc-relay: <Lesliet@> :p
09:03 AM lcnc-relay: <Lesliet@> mornin you lot
09:07 AM lcnc-relay: <Lesliet@> an online friend reported having the misfortune of purchasing an RTA train ticket at the wrong moment. It took the money, but no ticket
09:08 AM Gothia1 is now known as Gothia
09:29 AM JT-Cave: forum is super slow today
10:10 AM roycroft: tracking a shipment across the international date line can be a bit confusing
10:11 AM roycroft: i'm showing my parcel leaving japan on the 17th, arriving in anchorage on the 18th, going back to japan on the 18th, then arriving in anchorage on the 18th
10:12 AM xxcoder: wow looks like doc who is helping ;)
10:12 AM xxcoder: just thought how large a benefit "inside is bigger" thing would be to shipping
10:13 AM roycroft: but translating for the date line, it actually went from one place in japan on the 17th to another place in japan on the 18th, arriving in anchorage on the 17th, and departing anchorage on the 18th (probably for seattle, where it's not arrived yet)
10:13 AM xxcoder: set of 20 semis could be turned into one large-ish van
10:13 AM roycroft: the biggest road train ever was in australia
10:13 AM roycroft: iirc it was over a mile long
10:13 AM xxcoder: think so yeah
10:14 AM roycroft: that sounds a bit different to what you're talking about though
10:14 AM xxcoder: yeah lol. picture this, warehouse inside van
10:14 AM xxcoder: where stuff is not just stored, but theres plenty of room to move things around
10:14 AM roycroft: that's called "the snap-on truck" :)
10:14 AM xxcoder: hah!
10:16 AM roycroft: somebody has my office voice line and my fax line mixed up this morning (they are one numbrer off each other)
10:16 AM roycroft: and somebody's fax machine does not respect the law regarding repeated calls for failed faxes
10:17 AM roycroft: i just had to put the office voice line on dnd, because it was getting a fax call from the same number ever since i got to the office this morning
10:22 AM roycroft: i just sent them a cease and desist fax :)
10:23 AM xxcoder: "oh sure last 1021 times it didnt work, but I'm sure 1022 is magic number"
10:24 AM roycroft: it's all automated
10:25 AM roycroft: but there are regulations about how often and how many times a failed attempt can be repeated
10:25 AM roycroft: unfortunately a lot of spammers ignore that
10:25 AM roycroft: and a lot of small offices resend manually, unaware of the regulations
10:26 AM xxcoder: I know :)
10:26 AM xxcoder: on it being automated
10:26 AM roycroft: i don't recall the exact regulation, but iirc you can resend up to three times, spaced a couple minutes apart, then you have to back off for some hours, and then a single attempt may be made, with another backoff of several hours
10:27 AM roycroft: this number called me 11 times before i set the trunk to dnd, and my logs show it's still trying every minute
10:27 AM xxcoder: wonder if its that fabled fax spam
10:27 AM roycroft: i need to be able to take actual calls on that line, so if it doesn't stop soon i guess i'll have to block the number completely
10:28 AM roycroft: i bet it's a dentist's office trying to fax some insurance papers
10:28 AM roycroft: or something like that
10:28 AM roycroft: it's a eugene number, and most of the fax spammers are from florida
10:52 AM roycroft: the credit card spammers are calling my other office number now
10:53 AM roycroft: a daily event that i've been unable to stop, but since stir/shaken enforcement that has dropped about 95%
12:25 PM lcnc-relay: <Lesliet@> stir/shaken enforcement?
01:04 PM roycroft: stir/shaken is a telecom protocol requiring caller id to be cryptographically signed so that spoofed numbers cannot be transmitted
01:05 PM roycroft: prior to a couple months ago i could set the outbound caller id on my phone trunks to whatever i wanted and it would be sent to the called party that way
01:05 PM roycroft: now i have to register my caller id for every trunk, and if i try to send anything but the registered cid it will either be blocked or flagged as invalid
01:06 PM roycroft: that has really slowed down the scammer spammers
01:47 PM xxcoder: wonder thats why I have gotten much fewer calls latelky
01:52 PM roycroft: if you have gotten fewer scammer/spammer calls that is definitely why
01:53 PM xxcoder: nice
03:29 PM -!- #linuxcnc mode set to +v by ChanServ
04:37 PM _unreal: ve7it, I got my panel pc's
06:07 PM _unreal: hum
06:08 PM _unreal: I do not have a good method to hold/mount these panel pc's currently
06:26 PM Tom_L: not vesa mount?
06:30 PM roycroft: the new exhaust fan for my laser is here
06:31 PM roycroft: the thing sounds like a jet engine when it's running at full speed
06:31 PM roycroft: and the flex hose from the laser to the exhaust vent pipe inflates a bit when it's running
06:31 PM roycroft: so i think i'll get good airflow to the outside
06:36 PM roycroft: yes, i am seeing no smoke at all, and i am not smelling any smoke at all
06:37 PM xxcoder: good. avoid the bad air
06:37 PM xxcoder: rice time for me. its finally running out last of fairly crap quality brown rice
06:39 PM roycroft: it's burrito tuesday for me, when it's dinner time in a bit
06:40 PM roycroft: and yes, good air quality is especially important since this machine is inside my house and i have a forced air hvac system, so the air circulates throughout the house
06:40 PM xxcoder: havent exactly decided what to do with rice yet. I know im going to use cheese. I have garlic clove and half onion I can use
06:41 PM xxcoder: maybe its just slice and dice veggies, or maybe I keep onions raw and have rice burritos
06:44 PM roycroft: i found some domestic brass-extruded bucatini at an italian deli over the weekend
06:44 PM roycroft: and made a delicious pasta last night with that, and a roasted garlic and anchovy sauce
06:45 PM xxcoder: I need a garlic crusher lol
06:45 PM roycroft: i'm going to have a hard time going back to teflon-extruded pasta
06:45 PM roycroft: i don't have one
06:45 PM xxcoder: sadly not for while
06:45 PM roycroft: i use a knife
06:46 PM xxcoder: thats cool. sadly I cant be that careful
06:46 PM roycroft: the domestic brass extruded pasta is about 2x as expensive as teflon extruded
06:46 PM roycroft: but about half as much as the italian stuff
06:46 PM roycroft: it's all about technique, xxcoder
06:46 PM xxcoder: why is it better
06:46 PM roycroft: it comes out of the extruder kind of rough with brass
06:46 PM roycroft: but very smooth with teflon
06:47 PM roycroft: the rough texture causes the sauce to cling to it instead of slide off
06:47 PM xxcoder: I know. im always dizzy and have vision issues, so making tiny chunks out of stuff with knife is bit dicey
06:47 PM roycroft: regarding cutting garlic, it's all about technique
06:47 PM roycroft: you roll your fingertips under your knuckles on the hand that holds the garlic
06:47 PM xxcoder: texture. interesting indeed, on pasta
06:48 PM roycroft: and you hold the knife with the side next to your knuckles, and never lift it above your knuckles
06:48 PM roycroft: if you do that then you cannot cut your fingers
06:48 PM xxcoder: makes sense
06:48 PM roycroft: as long as the side of the knife is touching your knuckles it cannot cut your fingertips
06:48 PM Tom_L: probably one of the first things taught in chef school
06:48 PM roycroft: yes
06:49 PM roycroft: it applies to all cutting up of veggies
06:49 PM roycroft: and every professional chef does it that way
06:49 PM Tom_L: that and a dull knife is more dangerous than a sharp one
06:49 PM roycroft: s/knife/edge tool of any kind/
06:50 PM xxcoder: yeah I finally had bought better knife. the cheapo special I had I could sharpen to be quite good, but its edge dont last well
06:51 PM Tom_L: wonder if ceramic ones are any good
06:51 PM xxcoder: new one is still fairly cheap, but its stainless steel and steel combo so it have estronger edge
06:51 PM roycroft: that's the bane of cutting tools
06:51 PM xxcoder: tom I saw videos on it. yes it is, but sharpening them is hard
06:51 PM roycroft: if the steel is hard enough to hold an edge well it's hard to sharpent
06:51 PM roycroft: if it's soft enough to sharpen easily it does not hold an edge for long
06:51 PM xxcoder: id suggest watch youtube on cermic knife resharpening to get idea
06:52 PM Tom_L: i don't own any or plan to
06:52 PM Tom_L: just a curiosity
06:52 PM roycroft: also, hard steel cannot be made as sharp as softer steel
06:52 PM roycroft: which is why i get chisels and plane blades made of softer (but still very hard) steel
06:53 PM roycroft: i've tried the really hard steels, and i don't like the results i get
06:53 PM roycroft: i'd rather use slightly softer steel, and strop/hone more often
06:55 PM roycroft: so i'm not at all happy with the noise this fan makes, but i'm very impressed with its performance
06:55 PM roycroft: the tradeoff is more than acceptable
06:55 PM Tom_L: laser exhaust?
06:56 PM roycroft: yes
06:56 PM roycroft: i don't know the cfm of either, but the "old" one (which i've had for a couple weeks) is 20mm thick
06:56 PM roycroft: this one is 38mm thick
06:56 PM roycroft: and has room for some proper blades
06:57 PM roycroft: the old one kind of worked, but there would be some lingering smoke in the enclosure, a little of which would leak out into the room
06:57 PM roycroft: with this one i can't see any smoke at all, not even at the laser head
06:59 PM roycroft: the new fan was $35
06:59 PM roycroft: well worth it
06:59 PM Tom_L: the one on my cnc control is mains voltage
06:59 PM roycroft: this one is 24vdc
06:59 PM roycroft: 3a
06:59 PM Tom_L: got it from my local electronics guy who is there no more
06:59 PM roycroft: the one in my mini-router controller is mains voltage
06:59 PM roycroft: which is 120vac in that machine
07:00 PM Tom_L: i'm not sure the size but larger than most pc psu
07:00 PM roycroft: it's also 80mm diameter and 38mm thick
07:00 PM Tom_L: mine is probably 80mm
07:00 PM * roycroft would guess 80mm, as that is a very common size for high-volume fans
07:01 PM Tom_L: it lets me know the control is on
07:02 PM roycroft: almost done
07:02 PM roycroft: i was hoping this would be the final parts, but i messed up
07:02 PM roycroft: i put the plywood a bit too far to the left, and hit a hard limit on the first part
07:02 PM roycroft: so that's ruined
07:02 PM roycroft: but i'll be able to test the kerf compensation with this - the mating tabs are good
07:03 PM Tom_L: you shold mark where the limits are on the bed
07:03 PM roycroft: and i have a small scrap of plywood that i can use to remake the ruined part
07:03 PM roycroft: tom_l: i'm making alignment templates for the machine
07:03 PM roycroft: everything will be indexed to a template
07:03 PM roycroft: so when those are made i'll never hit a hard limit again unless i seriously screw up a design
07:04 PM Tom_L: i have a plate i index off the corner and can run 4-5 different parts without relocating anything
07:04 PM xxcoder: meal time. decided to just add all of half onion, and add some sauces. pretty tasty
07:05 PM roycroft: and the parts are still a wee bit too tight
07:05 PM xxcoder: tasty
07:05 PM roycroft: so i guess another test is in order
07:05 PM xxcoder: onions adds to it
07:06 PM roycroft: onions are almost always a good addition
07:06 PM roycroft: do you ever make black beans and rice?
07:06 PM roycroft: i think you'd like it
07:06 PM xxcoder: ✅
07:06 PM roycroft: cook rice (preferably in a nice broth with garlic and stuff)
07:07 PM roycroft: drain a can of black beans and heat them up
07:07 PM xxcoder: I use rice cooker, so if it can be done in one, i'm all for it
07:07 PM roycroft: put a blob of rice on a plate
07:07 PM roycroft: add a blob of back beans on top
07:07 PM roycroft: then put some grated cheddar cheese, avocado slices, and salsa on top
07:08 PM roycroft: and enjoy
07:08 PM roycroft: it's like mexican food without the tortillas
07:08 PM xxcoder: nice. sadly my avocodo fruits isnt ready
07:08 PM * roycroft heads out to cut another piece of plywood
07:08 PM Tom_L: cnc spring winding was kinda fun
07:10 PM xxcoder: yeah?
07:10 PM Tom_L: http://tom-itx.no-ip.biz:443/~webpage/rue/Can_Holder/Spring/Coil_spring6.jpg
07:10 PM Tom_L: the setup
07:10 PM Tom_L: the 'tool' has a radius to hold the wire
07:11 PM Tom_L: http://tom-itx.no-ip.biz:443/~webpage/rue/Can_Holder/Spring/Coil_spring5.jpg
07:11 PM Tom_L: result
07:11 PM Tom_L: he'd been using V type springs but they would fatigue
07:11 PM xxcoder: hmm I remember the tool
07:12 PM Tom_L: http://tom-itx.no-ip.biz:443/~webpage/rue/Can_Holder/Spring_mod6.jpg
07:12 PM Tom_L: to hold a spray can
07:12 PM Tom_L: the coil doesn't fatigue
07:13 PM xxcoder: I would guess it does, just much higher number of stresses
07:13 PM Tom_L: by a pretty high factor
07:16 PM _unreal: ve7it, so I've been going though the docs and putting together a work sheet so I can go over these boards
07:16 PM _unreal: the DSPIC servos
07:17 PM _unreal: is that a springy coil or a coily spring?
07:18 PM _unreal: Oh. thats interesting using the CNC with a work plate fixture pin to wind and make the spring part.
07:18 PM _unreal: Tom_L, I have to say i've never considered that
07:19 PM Tom_L: https://www.youtube.com/watch?v=Lonf4ypINVM
07:20 PM roycroft: boingy boingy boingy
07:20 PM Tom_L: gives you repeatability
07:21 PM Tom_L: which is part of what lacked before
07:21 PM roycroft: i've only ever made one spring
07:21 PM roycroft: i did not enjoy it
07:21 PM Tom_L: i've would plenty on the drill press
07:21 PM roycroft: it was made out of 3/16" diameter spring wire
07:21 PM roycroft: and i made it by hand
07:21 PM xxcoder: I cant remember when I saw that spring bender tool lol
07:21 PM roycroft: it was very very hard to bend around the mandrel
07:22 PM roycroft: but i needed a big strong spring that i could not purchase
07:23 PM roycroft: it was for my 2x72 belt grinder project
07:23 PM roycroft: and i would like to remake that grinder using the newer, improved plans
07:23 PM roycroft: but i'd have to make another spring
07:23 PM roycroft: well, i could reuse the old one, but if i made a new grinder i'd want to sell the old one
07:23 PM roycroft: which would be hard to sell without the spring
07:29 PM rdtsc: https://www.youtube.com/watch?v=BuQZeiAugp4
07:36 PM xxcoder: I wish I was anywhere near that good lol
07:40 PM roycroft: well yay
07:40 PM roycroft: my parts finally fit
07:40 PM roycroft: it's not quite a "snap" fit
07:40 PM roycroft: it's more like a "push hard" fit
07:41 PM roycroft: but they don't wiggle at all
07:41 PM _unreal: Tom_L, how did you get the 90, manual or some other jig setup for the spring?
07:41 PM Tom_L: manual
07:41 PM _unreal: I'm sure my big cnc could handle doing that
07:41 PM Tom_L: started off with an L piece of wire
07:41 PM _unreal: though when I get the metal endmill done. it will do that easy
07:42 PM _unreal: I'll have to convert that end mill to ball screw though?
07:42 PM _unreal: not happy with the acme setup it has currently
07:42 PM _unreal: well not for CNC anyways
07:42 PM _unreal: I'll have to pull all the ways apart and everything regardless
07:42 PM _unreal: that machine is going to be a bit of a project when I get to it
07:42 PM xxcoder: roy: 🎉
07:43 PM _unreal: hence I'm working on getting the ve7it dspic servo drive working first.
07:43 PM Tom_L: ball screws are nice
07:43 PM roycroft: i honestly don't know what my tolerance should be for this
07:43 PM roycroft: if anyone has any insights i'd appreciate it
07:43 PM roycroft: i'm fitting wood parts together
07:43 PM _unreal: I'm going to drive that end mill with the brushed servos
07:43 PM roycroft: 0.1mm kerf compensation is loose
07:43 PM roycroft: 0.175mm kerf compensation is a no-go
07:43 PM _unreal: I KNOW I KNOW I could/should just use steppers or what ever. but being such a small machine
07:44 PM roycroft: 0.1375mm kerf compensation i can press the parts together with a bit of force, but not too much
07:44 PM _unreal: I'm going to just use large pullies and except that its not going to be super fast
07:44 PM roycroft: is it worth doing another test at 0.13mm?
07:44 PM roycroft: or 0.1875mm?
07:44 PM * roycroft is going through a lot of plywood doing this testing
07:44 PM _unreal: roycroft, you'll have to ask your self... "self... I have a question?"
07:45 PM roycroft: i've already determined that i'm not sure i can answer it myself
07:45 PM roycroft: which is why i asked out loud
07:45 PM Tom_L: .005"
07:45 PM _unreal: ? I didnt hear anything
07:45 PM Tom_L: wouldn't be out of the question
07:45 PM _unreal: saw something though
07:45 PM _unreal: hehe
07:45 PM roycroft: <roycroft> if anyone has any insights i'd appreciate it
07:46 PM roycroft: that is a form of a questino
07:46 PM Tom_L: .005"
07:46 PM Tom_L: wouldn't be out of the question
07:46 PM roycroft: it's at least a request
07:46 PM _unreal: are you using a bench press or are you using some kind of a break?
07:46 PM Tom_L: depending how much the wood swells with humidity
07:47 PM roycroft: i'm using my thumbs
07:47 PM roycroft: and the difference between 0.100mm (loose) and 0.1375mm (tight fit) is 0.0014"
07:48 PM Tom_L: i'm not a woodworker though
07:48 PM roycroft: wait, that does not sound right
07:48 PM _unreal: Tom_L, with the right tools can always toss wood into a vac chamber with a sealer OR epoxy, vac it to zero. give it a few min and remove before the resin cures. Dry off the wood and it should be locked in no swelling for ever
07:48 PM roycroft: actually, it is right
07:48 PM Tom_L: we had to figure spring back on hydropress blocks and arrived at 2-3 degrees
07:48 PM roycroft: so i'm within 0.002" now
07:49 PM _unreal: roycroft, then all is well?
07:49 PM roycroft: i'll call this a slight interference fit
07:49 PM Tom_L: so all the blocks had an undercut
07:49 PM _unreal: roycroft, nothing a little thumb grease cant fix
07:49 PM Tom_L: slightly interferred with
07:49 PM roycroft: all is not well
07:49 PM roycroft: the world is pretty messed up in many ways
07:49 PM roycroft: but i think my parts are probably ok
07:50 PM Tom_L: check them again tomorrow
07:50 PM Tom_L: see what changed
07:50 PM roycroft: it's plywood
07:50 PM roycroft: probably won't change much, especially being indoors
07:50 PM Tom_L: if it were a kid's puzzle the tolerance would be higher
07:51 PM Tom_L: less?
07:51 PM Tom_L: you get what i'm after
07:51 PM roycroft: these parts are part of a jig to align other parts
07:51 PM roycroft: i need them to fit very well
07:51 PM Tom_L: jigs should be pinned
07:51 PM Tom_L: even if they use bolts
07:51 PM roycroft: in the machining world, yes
07:52 PM Tom_L: just saying
07:52 PM roycroft: in the laser engraving/cutting world, not so much
07:52 PM * roycroft calls it good and makes dinner
07:52 PM roycroft: the ultimate deciding factor
07:52 PM roycroft: my stomach told me it's good enough :)
07:52 PM Tom_L: and the evening and morning were the first day?
07:54 PM * Tom_L goes back to doing nothing
07:54 PM roycroft: liar
07:54 PM roycroft: you are, at the very least, breathing and pumping blood through your body
07:54 PM roycroft: at least i hope you are
07:54 PM roycroft: unless perhaps you're really an ai engine
07:54 PM Tom_L: getting thing ready for a board swap in the control
07:55 PM roycroft: the batteries for my tv remote died, and i can't find my box of charged aaa eneloops, so i have the ones that were in the remote on the charger
07:56 PM roycroft: i hope they're done charging soon - the tv is stuck on pause in the middle of a youtube video
08:00 PM xxcoder: those remotes can power off farts, so its probably charged enough to in least run now
08:00 PM xxcoder: I think I remember batteryless remotes where press is what powers it
08:10 PM lcnc-relay: <Lesliet@> rdtsc: great video, neat watching someone else's process
08:10 PM xxcoder: its fun so far
08:20 PM xxcoder: that was pretty cool video
08:21 PM xxcoder: was perfect video to watch while I pumped up my tricycle tire lol (air pump finally arrived, was a dollar)
08:24 PM roycroft: well, realizing that even in my most senior moment, i would likely not have misplaced that box of aaa cells, i thought to myself "if i were a cat where would i hide that box?", looked at a couple plausible places, and found it
08:39 PM _unreal: boy that was annoyinhg
08:40 PM _unreal: been trying to get one of my computers mac filtered out of the internet, finally figured it out but not before it got like 30 seconds of internet. sure enough its doing a LOT of processing :s freaking win10
08:40 PM _unreal: its one of my CAD computers
08:40 PM Tom_L: i keep those off the internet
08:42 PM roycroft: a mac address will not and cannot cross a network boundry
08:43 PM roycroft: it's layer 2
08:47 PM _unreal: I was having a hard time figuring out how to block the mac. turns out I have to use a cell phone APP to BLOCK a mac address, but I cant do it by logging into the outer its self with a million settings but no ablity to block a mac address wtf
08:48 PM _unreal: I am trying to figure out how to add my hp laserjet to this linux machine
08:48 PM Tom_L: should be a no brainer
08:48 PM _unreal: problem is its network served by a trendnet print server
08:49 PM _unreal: I dont have the ethernet adapter for this printer. but I do have it networked with the trednet print sever via parallel port
08:49 PM _unreal: works great
08:49 PM roycroft: in my view, the simplest, easiest, and safest way to isolate a machine from the public internet is to provision it manually with a static ip, and give it a gateway address on the same network that is not the actual gateway
08:49 PM roycroft: it's how i always isolate machines
08:50 PM roycroft: i don't have to depend on any other devics behaving properly and possibly getting reset and losing their firewall rules
10:32 PM xxcoder: theres been that silly 6 7 meme running around. however someone noticed 6 * 7 = 42
10:32 PM xxcoder: so maybe that explains everything lol
10:37 PM roycroft: i love that meme
10:37 PM roycroft: it's so nonsensical, and puzzles so many people who desperately to make sense of it
10:38 PM roycroft: i mean, i have seen the original video that inspired the meme, so i know what it means
10:38 PM roycroft: but people are trying to make much more out of it than what it is
10:38 PM xxcoder: lol glad I dont require meaning to exist
10:39 PM roycroft: the south park 6 7 episode was one of the funniest ones in years
10:43 PM xxcoder: webcomic covered it. https://www.litterboxcomics.com/deep-thoughts/
11:28 PM lcnc-relay: <Olli (RIO)@> moin