#linuxcnc Logs

Dec 04 2020

#linuxcnc Calendar

01:40 AM veegee_: in oxy acetylene welding, how is the weld pool being "shielded"?
01:46 AM veegee_: Is the flame naturally displacing atmospheric oxygen?
01:49 AM enleth: veegee: the flame is not spatially homogenous due to the way the nozzle injects acetylene and oxygen
01:49 AM veegee: ah, right
01:49 AM enleth: it's neutral in the center to produce heat, but slightly reducing on the perimeter
01:50 AM enleth: also, you still can and sometimes should use flux
01:50 AM veegee: got it
01:51 AM veegee: I have a fibreglass cloth "welding shield". I wonder if I need to wear a P100 respirator while handling it. Does it shed fibreglass dust?
02:28 AM Deejay: moin
04:40 AM * Loetmichel just dodged a bullet. Boss was casually mentioning that i have to drive to paris on monday for some "on site repairs"... meaning 6 hours drive, 3 hours repair, 6 hours drive back and being at the company at 0800 the next day at best... when i mentioned to him that that would mean me going into quarantine for 14 days afterwards (crossing the german/french border) due to covid he said
04:40 AM * Loetmichel "WHAT? Oh! No, they'll have to send the displays in then!"
04:42 AM XXCoder: lucky
04:44 AM Loetmichel: indeed
04:49 AM jthornton: morning
04:49 AM XXCoder: yo
05:08 AM gloops: heavy snow, settling
05:37 AM miss0r: I just bought a brand new(old realy, but spotless and never used) vertex VUA-510 for $80
05:37 AM miss0r: this is what it looks like: https://www.mapletools.ca/public/pub_product_view.php?product_id=675
05:37 AM XXCoder: for lathe?
05:37 AM miss0r: for the mill
05:38 AM XXCoder: ahh yea
05:38 AM XXCoder: nice
05:38 AM miss0r: I guess I *could* mount it in the lathe if I want to do something realy dangerous :D
05:39 AM miss0r: I got an order to make some valve indents in 4 pistons for some sort of performance motor cycle upgrade
05:39 AM miss0r: and the pistons are exactly 4mm too large for me to grip them in my universal dividing head... so this is realy handy now :D
05:40 AM miss0r: I swear that vertex used to make better stuff some time ago. This tool here is prestine. so is the boring head I have marked vertex(also of older date).
05:41 AM Tom_L: morning
05:41 AM miss0r: This came in a small suitcase with velvet on the inside. Quite nice :D
05:41 AM miss0r: morning tom
05:41 AM XXCoder: hey
05:42 AM XXCoder: it looks very handy for drilling angled holes
05:42 AM XXCoder: many other uses depending on how strong it holds on
05:42 AM jthornton: yea my cutter head shipped yesterday
05:42 AM miss0r: XXCoder: it seems super sturdy!
05:42 AM miss0r: but I will get back to you on that once I have tried using it.
05:42 AM XXCoder: sounds like you can mill on it
05:43 AM * miss0r is doing a setup as we speak
05:43 AM miss0r: I have no doubt. It has the right feel to it
05:48 AM miss0r: meh. i thought I was going mad hehe. It came with three t-slot nuts. Apparently they are 6, 8 & 10mm :D
05:48 AM miss0r: I did not notice that
05:48 AM XXCoder: wow sounds like very complete set
05:50 AM miss0r: I can't be sure those are original.. hehe but they were in the suitcase anyway
05:51 AM XXCoder: professonal machinists all have suitcases now ;)
05:52 AM -!- #linuxcnc mode set to +v by ChanServ
05:57 AM miss0r: XXCoder: Its because all professional machinists are ready to run for the hills at any moments notice. :D
05:57 AM XXCoder: lol
06:07 AM * miss0r just reliazes that he does not have the proper bullnose endmill to do what he wants :-/
06:08 AM Tom_L: grind it
06:08 AM Tom_L: you got radius gages right?
06:08 AM miss0r: yup
06:09 AM miss0r: I am working on the setup at the moment.
06:41 AM * JT-Cave has to drive to Manila this morning
07:15 AM miss0r: JT-Cave: Is that a long trip?
07:16 AM JT-Cave: about 1 1/2 hours drive from here
07:16 AM JT-Cave: taking the last bits of the fence to the powder coater
07:17 AM miss0r: nice. A hot mug of coffee will go a long way :)
07:17 AM JT-Cave: https://www.google.com/maps/dir/Poplar+Bluff,+Missouri+63901/Manila,+Arkansas+72442/@36.3173848,-90.7691503,9z/data=!3m1!4b1!4m14!4m13!1m5!1m1!1s0x87d7b063d61cdfb3:0x65c101a85d6a8987!2m2!1d-90.392888!2d36.7569994!1m5!1m1!1s0x87d5e2c380c8304d:0x4d37b574d5089c42!2m2!1d-90.1670393!2d35.8800733!3e0
07:17 AM JT-Cave: or a diet dr pepper lol
07:17 AM miss0r: Freaky looking setup: https://imgur.com/a/S34T2tj
07:17 AM miss0r: now its just rinse and repeat
07:18 AM miss0r: hehe... 1½ hours on the map. zooming out you can see how little of the US that covers. If you do that in denmark, you can basically still see the road signs when you are zoomed out enough to see the entire country
07:27 AM JT-Cave: lots of clamps, not sure I understand how your holding the piston. got a side shot
07:30 AM miss0r: uploading...
07:30 AM miss0r: I have a parallel positioned on the right side to index the piston on the milled flat on the side where the pin is inserted.
07:32 AM miss0r: I have added them to the imgur link
07:33 AM JT-Cave: that's some setup
07:34 AM miss0r: best I could come up with in a pinch :)
07:35 AM gregcnc: how did you located the piston in Y and Z
07:36 AM miss0r: in the picture you can see a rather chunky punchmark at the center of what would've been a full circle pocket had I gone deeper
07:36 AM miss0r: the client made a custom punch that fit the valve guides on the bike, so he punched through them on one piston
07:37 AM miss0r: that is why I had to make this setup how I did - make it easy to replicate the location
07:37 AM gregcnc: ah not obvious in the first pic and I didn't scroll
07:38 AM miss0r: I asked him about the torances. Luckily the pistons are only 20mm and the pocket is specied at 30. because those chunky punches are not exactly acurate
07:39 AM gregcnc: plenty of clearance
07:39 AM miss0r: indeed. But I still better bring my a-game, as the client is a retired tool maker
07:39 AM miss0r: :)
07:42 AM gregcnc: I put a pressure sensor into a tiny four stroke recently
07:42 AM miss0r: for the combustion or oil pressure?
07:42 AM gregcnc: combustion
07:43 AM JT-Cave: time to start my chicken day
07:44 AM miss0r: so.. you are doing a compression test? or are you actively measuering the explosion pressure?
07:44 AM gregcnc: running pressure traces
07:46 AM gregcnc: fancy Kistler cylinder pressure sensor
07:51 AM miss0r: fancy :)
08:06 AM miss0r: two pistons done now. 3rd has just been setup
09:31 AM -!- #linuxcnc mode set to +v by ChanServ
09:33 AM JT-Shop: fence finally done and loaded up... heading to Manila
09:35 AM jymmmm: Morning
09:35 AM unterhaus: JT-Shop, chicken fence?
09:35 AM jymmmm: JT dont forget your passport
09:37 AM JT-Cave: fence to keep his grandkids from wandering into the pool area
09:40 AM unterhaus: Is Manila in the U.S.?
09:41 AM unterhaus: I wanna know why a usb-rs485 adapter would have alligator clips. Couldn't bring themselves to leave the wires unterminated?
09:42 AM JT-Cave: AR
09:42 AM JT-Cave: Arkansas
09:45 AM JT-Cave: https://www.killer-coatings.com/
10:01 AM unterhaus: our local powder coater is very slow and not particularly friendly
10:02 AM unterhaus: also expensive
12:58 PM rs[m]: explosive hydroforming: https://twitter.com/MachinePix/status/1334559037157994496
01:24 PM gregcnc: i saw that on instagram and was going to try to find the sauce
01:27 PM Tom_L: one way to test the welds i suppose
01:29 PM gregcnc: http://firepitball.com/type/video/
01:43 PM unterhaus: I really feel like fusion would be nicer if everything wasn't done in a context
01:43 PM unterhaus: sketch should be visible when you start a design, for example
02:15 PM miss0r: to think I can sometimes have issues with an engine that is caused by something MINUTE!... then this guy comes along and builds a 'working' engine like this... baffled: https://www.youtube.com/watch?v=Bk4RND5AbRc
02:29 PM gregcnc: engines built 150 years ago weren't much different?
02:51 PM JT-Shop: yippie the weekend has started with a bang, got paid for the spoke machine conversion
02:51 PM XXCoder: :)
03:06 PM rs[m]: miss0r: lol @ video
03:23 PM JT-Shop: OMG my package is lost can you find it for me? what am I clairvoyant?
03:29 PM Tom_L: don't spend it all in once place
04:07 PM Tom_L: that guy's favorite tools are vise grips and angle grinder
04:09 PM JT-Shop: which guy?
04:10 PM Tom_L: in miss0r's videl
04:10 PM Tom_L: o
04:11 PM JT-Shop: lol, another waste of time video
04:11 PM Tom_L: yeah but i'm just sittin here now anyway
04:12 PM JT-Shop: come over here and help me clean my shops
04:12 PM Tom_L: like i said i'm sitting here )
04:12 PM Tom_L: i don't think no phone call could get me up unless it was about food
04:13 PM XXCoder: not even if its winning lottery call? ;)
04:13 PM Tom_L: those would be tickets
04:16 PM Tom_L: besides, if i helped clean you might come up missing a few things :)
04:20 PM JT-Shop: or might find some missing things
04:26 PM Tom_L: besides, you'll just have to mess it up again to find things
04:29 PM JT-Shop: lol
06:27 PM _unreal_: working on milling one of my last major parts
06:27 PM _unreal_: for the new cnc machine
06:51 PM unterhaus: I gave wine another chance and it hates my program, which is really generic
06:52 PM unterhaus: it's amazing that all sorts of weird copy-protected games work on it but not this thing
06:53 PM infornography: wine has no feeling, you are projecting your own feelings onto it
06:53 PM infornography: I'm sure it is a fine program
07:03 PM roycroft: unterhaus: here's the deal with windows software
07:04 PM roycroft: microsoft publish an api for developers to use when building software for windows
07:04 PM roycroft: as long as developers use the api everything is fine
07:04 PM roycroft: building windows apps with the api makes them run really slowly and inefficiently, though
07:04 PM roycroft: microsoft themselves avoid the api so that their own apps perform well
07:05 PM roycroft: developers have learned that they must do the same - avoid the official api so that their apps can run with decent performance
07:06 PM roycroft: and with every release of windows, developers have to scramble to make their apps work because microsoft invariably change a bunch of things internally that won't matter to the api interface, but do matter to folks not using the api
07:06 PM roycroft: i haven't even looked at wine in at least a decade, but a tthe time it only worked reliably with apps that use the official microsoft api
07:07 PM roycroft: i suspec that is still the case
07:07 PM roycroft: which is a big reason i say tha if you need to run windows apps, run them in windows
07:40 PM unterhaus: the windows api is fine for applications like this. I doubt they did anything weird
07:40 PM unterhaus: it's super generic
07:41 PM unterhaus: they gave out the code to the other companies that sold their servo drives. All it does is present an interface for some ascii codes sent over the serial port
07:41 PM unterhaus: it could be a terminal emulator, but it's a little more user-friendly than that
07:42 PM unterhaus: they published the ascii codes