#linuxcnc Logs
Feb 16 2022
#linuxcnc Calendar
01:07 AM randy: morning
02:12 AM solarwind: So I've been making my own gas diffusers like this: https://canadaweldingsupply.ca/collections/furick-cup/products/replacement-screens-for-furick-fupa-12-cups?variant=31049173434454
02:12 AM solarwind: And getting better results by using a finer mesh
02:13 AM solarwind: The only annoying part is spot welding the two discs together after cutting them out and then punching a hole in the middle for the tungsten
02:13 AM solarwind: Is there some kind of "rivet" with a through hole like the ones in the picture above?
02:16 AM solarwind: Or what would be the best way to machine them out of a sheet of stainless steel mesh?
02:17 AM solarwind: I can't imagine an endmill would work. Maybe an engraving point end mill or something?
02:19 AM Deejay: moin
05:12 AM Tom_L: morning
05:25 AM JT-Cave: morning
05:27 AM unterhaus: solarwind metal grommet?
06:46 AM Tom_L: windy
06:46 AM Tom_L: gonna turn cold again tomorrow
07:17 AM JT-Cave: windy here too
07:17 AM JT-Cave: looks like only a couple of days of cold here
07:31 AM JT-Cave: I think it's correct now http://linuxcnc.org/community/
10:14 AM unterhaus: USPS and UPS are down the street talking to each other. I want my stuff
10:16 AM hazzy[m]: They are plotting and planing what packages to loose next
10:16 AM hazzy[m]: Oh wait, that’s FedEx
10:16 AM roycroft: more likely arguing over who has dibs on the dumping cliff
10:18 AM XXCoder: hazzy[m]: just tighten the packages up!
10:18 AM unterhaus: can't blame that fedex guy
10:27 AM unterhaus: The holes I designed for inserts printed .75mm small
10:29 AM roguish[m]: kcjengr[m]: hey Kurt
10:31 AM roycroft: that's more than an interference fit
10:31 AM roycroft: you may need a bigger hammer
10:33 AM CloudEvil: roycroft: you are assuming the size of his shaft.
10:34 AM roycroft: i'm trying not to think about that, thank you very much
10:34 AM CloudEvil: (I guess 100m might be a reasonable interference fit at 75mm)
10:52 AM unterhaus: since I didn't have the inserts, I designed them at 6.25mm. The solid part of the insert is 6mm and the teeth are 7mm
10:54 AM unterhaus: maybe I'll just drill it out to a quarter inch
10:54 AM unterhaus: which is 6.36mm
10:55 AM unterhaus: there is no normal force to the insert in my design, or at least very little
10:55 AM CloudEvil: depending on stuff, heating and inserting the insert may be fine, or even, better than fitting 'right'
11:21 AM unterhaus: CloudEvil, is it going to work if the insert is bigger than the hole?
11:22 AM unterhaus: I figure the toothed part would be fine, but the solid part is going to need somewhere to displace the pla
11:24 AM unterhaus: I guess it can go into the tapped hole, but that wouldn't be fun to clean out
11:25 AM CloudEvil: Ah, I missed that, that may be a little squidgy
11:25 AM unterhaus: I can just keep printing new versions until it works, I suppose
11:26 AM roycroft: why did the parts print at the wrong size?
11:26 AM roycroft: that would be interesting to figure out, if you haven't already
11:26 AM unterhaus: no idea, how close to the correct size is a hole normally
11:28 AM unterhaus: could be the nozzle temperature
11:29 AM unterhaus: otoh, it's an easy fix and I have plenty of wall thickness
11:35 AM perry_j1987: cant wait for the new belt to arrive ugh
11:36 AM roycroft: can you ream the hole to size?
11:36 AM roycroft: and maybe knurl it a bit after if you need it to be grabby?
11:47 AM unterhaus: It's an easy fix, I was just surprised the hole diameter was so far off
11:48 AM roycroft: yeah, which is why i said that figuring that out would be interesting
11:49 AM roycroft: it will affect other parts too, which may not be so easy to fi
11:49 AM roycroft: x
11:53 AM JT-MachineShop: yummm that german sweet baloney is good
12:26 PM unterhaus: I want to design a breakout board for a 7i43, but I figure I will get it backwards
12:29 PM hazzy[m]: roguish[m]: howdy! Hope alls well
12:31 PM * Anim[m] uploaded an image: (88KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/JqPsgKxQlmuWMyMaGiwkppti/233545353782_status_f7bdc3851d864464bd4b07e999e981ec.jpg >
12:41 PM * Anim[m] uploaded a video: (14285KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/JengDwHrLupdMQTzLZYabYWv/VID_20220216_091812.mp4 >
12:43 PM Rab: Anim[m], looking good.
12:52 PM * roycroft wonders why people refer to cnc lathes as "cnc lathes", cnc mills as "cnc mills", cnc plasma cutters as "cnc plasma cutters", but cnc routers as "cncs"
12:53 PM Rab: A perfectly reasonable and efficient use of the namespace.
01:06 PM roycroft: because adjectives are now nouns?
01:07 PM * roycroft guesses he just needs to get with the program
01:07 PM XXCoder: dunno
01:07 PM XXCoder: I name type of machine explictly
01:08 PM XXCoder: onky use "cnc as standalone as "any cnc machine"
01:13 PM roycroft: "cnc" used standalone is a process, not a mechanism
01:15 PM XXCoder: not quite what I meant
01:15 PM XXCoder: "cnc machine" is generic concept that applies to lathe, mill and router
01:16 PM XXCoder: if I want to talk about specific type, then I use more specific one like "cnc router"
01:27 PM mrec: does anyone have an mtb2 based cnc?
01:27 PM mrec: I wonder if using a torque wrench is enough for fastening the mtb2 taper
01:28 PM mrec: and how reliable a tool change is
01:41 PM CloudEvil: 100% chance of success at changing a tool'
01:42 PM CloudEvil: 'but it fell out, which isn't counted'
01:42 PM -!- #linuxcnc mode set to +v by ChanServ
01:55 PM Tom_L: JT-Cave, thanks
01:55 PM mrec: CloudEvil: do you use mtb2?
01:55 PM mrec: I'm currently not using it with a torque wrench, I have one here but still need an adapter
01:55 PM mrec: if you fasten it too much the TLO will not be correct
01:55 PM CloudEvil: Sorry, it was not a serious comment, more a musing on how to define something being done, following lots of recent stuff I've been reading.
01:56 PM mrec: ok
01:57 PM XXCoder: yeah torque wrenchs great to have
01:57 PM XXCoder: makes things more consient
01:57 PM Tom_L: makes them more torquey
01:58 PM mrec: today I milled quite some copper ... all those shitty 4flute carbide endmills are worthless fo rit
01:58 PM mrec: for it*
01:59 PM mrec: I stopped it before it gummed up and changed to a single flute endmill that worked okay
01:59 PM CloudEvil: Coolant/...?
01:59 PM djdelorie: is tesla's autodrive a form of cnc?
01:59 PM Tom_L: need really sharp quality tools for copper
01:59 PM XXCoder: djdelorie: does it run gcode?
01:59 PM mrec: my daughter killed my last HSS-Co 4mm endmill ... ya that one was okay
02:00 PM djdelorie: is that a requirement? and/or defining factor?
02:00 PM mrec: too easy to play with the pendant wheel and crash it
02:00 PM djdelorie: if so, that makes my 3d printer a cnc machine too...
02:00 PM XXCoder: id call it a requirement.
02:00 PM XXCoder: yeah though I dislike to call 3d printers as cnc machine, it is
02:01 PM mrec: without spindle :D
02:01 PM * djdelorie looks for the paper tape reader for the printer...
02:01 PM * Tom_L gives djdelorie a stack of punch cards instead
02:06 PM djdelorie: mrec: cnc plasma/laser cutters don't have spindles either
02:13 PM roycroft: well they could
02:13 PM roycroft: they wouldn't be very useful
02:14 PM roycroft: arguably, the first cnc device was a textile loom made in the mid 19th century
02:14 PM djdelorie: technically nc, not cnc
02:14 PM djdelorie: but yeah
02:14 PM roycroft: programmed weaving looms predate hollerith cards by decades
02:14 PM djdelorie: jacquard looms
02:15 PM roycroft: the meaning of that first 'c' is debatable, but i'll concede that a hand-punched loom card is not really a "computer"
02:16 PM * roycroft wonders why rockler is sending him emails on a daily basis asking him to purchase a product "soon, while supplies last" that he's had on backorder for 2 months
02:17 PM djdelorie: iirc even the early paper tape machines were just NC, back before everything was a cloud AI robot
02:17 PM djdelorie: manually punched paper tapes, at least
02:18 PM * djdelorie has his rabbit hole for the day...
02:19 PM roycroft: hmm
02:19 PM roycroft: the jacquard loom was actually a later invention
02:19 PM roycroft: the very first nc loom dates from the early 18th century
02:19 PM roycroft: basile bouchon invented a loom that was driven by punched paper tape
02:21 PM djdelorie: I searched youtube for "basile bouchon" and got a clickspring clip...
02:21 PM roycroft: his loom was only semi-automated, though
02:21 PM roycroft: and you were not surprised
02:22 PM djdelorie: more disappointed. Youtube doesn't have the breadth and depth of searchable content I'd like
02:23 PM djdelorie: it's like it has too much data about what I watch, and always gives the same results no matter what I search for
02:23 PM Rab: Can paper tape be considered 'numeric', if the data isn't a numeric abstraction?
02:23 PM JanneKro: unterhaus, sorry, been away. ("I have a whole pile of NI cards because everyone switched to usb") - what does that mean? You sold some equipment or something like that? Doesn't all real-time capabilities disappear with UBS?
02:24 PM roycroft: https://www.youtube.com/watch?v=2bk-pUp6V5o
02:25 PM roycroft: that just sounds like an artifical voice reading a wikipedia article
02:26 PM djdelorie: https://en.wikipedia.org/wiki/Basile_Bouchon for a transcript ;-)
02:28 PM roycroft: yeah, that's the article
02:29 PM roycroft: and i was going to say that the youtube video might be useful for blind people, but they would already have screen readers
02:29 PM roycroft: so there's really no point at all except to try to generate ad revenue
02:29 PM roycroft: which is all but impossible on youtube any more
02:29 PM roycroft: the only way to make money on youtube these days is to use it to drive people to your patreon account
02:36 PM djdelorie: the rabbit hole votes that the C in CNC implies any sort of ability to store/edit/etc the program, vs going from paper directly to the mechanism
02:38 PM djdelorie: so if you had a paper tape reader that turned the punched holes into step/direction commands directly, you could downgrade your CNC back to NC :-)
02:38 PM unterhaus: JanneKro, if all you do is data acquisition, you can set up a clock and you don't need real time
02:38 PM Rab: But the paper is storage. And you can edit it (very carefully).
02:38 PM djdelorie: yes, but not within the NC machine itself
02:39 PM Rab: Yeah, just definitional quibbles...I don't think it can be construed as any kind of computer.
02:40 PM djdelorie: yup. Of course, the definition of "computer" back then was much different than now
02:41 PM JanneKro: unterhaus I'm thinking "timing operations to feedback", but maybe that's not how most things are implemented? Say, threading on a lathe, wouldn't you want to sync your operation to an encoder on the rotating axis?
02:42 PM unterhaus: the people I got my cards from don't do that and use windows anyway so there is no real time requirement
02:43 PM JanneKro: unterhaus, Sure. I thought were were talking about whether or not there are cases you need it, rather than "the people" :)
02:44 PM unterhaus: well, you asked why I got my ni equipment
02:44 PM JanneKro: unterhaus, but now I understand to what exactly you answered (the switch to USB "in your case)
02:44 PM unterhaus: people in general are moving away from desktops
02:44 PM JanneKro: unterhaus Yes exactly. Sorry, tired :)
02:45 PM unterhaus: I guess all the NI stuff I have is fast enough to do real time control on mechanical systems
02:45 PM JanneKro: unterhaus When I looked "what's available" I got a bit surprised that it was that USB-heavy nowadays.
02:46 PM unterhaus: if I was buying something for my consulting, it would be USB so I could go somewhere and take data with a laptop
02:46 PM JanneKro: "Moving to laptops" isn't really an alternative in my world if the point is to create machines that do a particular thing.
02:47 PM unterhaus: you can essentially do that with ethernet devices
02:47 PM JanneKro: unterhaus, sure, pure acquisition can be implemented in a specific device exactly for that. But general-purpose aqcuisition/control feels to me quite real-timey and desktopy.
02:47 PM unterhaus: rpi is more like a laptop
02:50 PM JanneKro: unterhaus Sounds reasonable. SoCs makes you be the slave of whatever decisions that have done that may or may not affect latency/jitter in unpredictable ways. I guess the RT industry have a harder time sourcing hardware that is predictable in these situations.
02:50 PM JanneKro: Poopsausage. My intention was to try look at the code for a bit, but I'm just too tired. :(
02:51 PM unterhaus: with something like a mesa card, the real time requirements for a computer are pretty relaxed
02:52 PM JanneKro: unterhaus I would imagine that. I think implementing comedi-drivers would be pretty good for all things open-source / cheap
02:52 PM JanneKro: especially if people are starting to get rid of the pci-cards..
02:52 PM JanneKro: (people == OTHER people)
02:52 PM unterhaus: unfortunately, NI is very unhelpful on the driver front
02:52 PM miss0r2: CaptHindsight[m]: Are you around?
02:53 PM JanneKro: unterhaus Hence comedi? :)
02:53 PM unterhaus: it's amazing that comedi works with some of these cards, they are closed up pretty tight
02:53 PM JanneKro: unterhaus Yes, I don't know what kind of magicians the guys behind the comedi-stuff are.
02:54 PM JanneKro: unterhaus So it would be a shame if that is not taken advantage of in the linuxcnc-world
02:54 PM JanneKro: unterhaus And maybe bring in more people to the comedi-project too
02:55 PM unterhaus: I won't be using mine for a machine.
02:56 PM JanneKro: unterhaus any for the world relevant reasons?
02:57 PM unterhaus: well, I don't need them for that, but also encoders are poorly supported
02:58 PM JanneKro: unterhaus ok. Maybe some rudimentary support will awaken interest in some corners to improve on that. We'll see how far I'll get. I think I'll probably need a a push or two in the right direction from the little I've seen
02:59 PM JanneKro: (within linux-cnc, not to extend on comedi)
03:00 PM unterhaus: I'm not sure if you can really read an encoder properly with the comedi. The NI timer/counters are highly configurable, but maybe not to people who don't have the proper documentation
03:02 PM JanneKro: I have a slight feeling that I did read the encoders with comedi on the model of the card that I have for nearly 20 years ago. I will need to do some testing. But first I merely want to be able to replace the parallel port. I think it's good enough of a start
03:02 PM JanneKro: If you or anyone else have any insights into making a "replacement for the parallell port", feel free to comment here. I really need some sleep. I will be back in a day or two. : ) '
03:10 PM -!- #linuxcnc mode set to +v by ChanServ
03:11 PM * JT-Shop just ain't going to get any work done today
03:11 PM XXCoder: yeah? whats up
03:13 PM miss0r2: I'm trying to figure out how to calculate this RCD snubber for my flyback converter. I am absolutly no expert on the subject, but using this calculator https://daycounter.com/Calculators/Snubbers/Snubber-Design-Calculator.phtml I get the result that my resistor should be able to desipate ~125watt, driving the flybacktransformer at 62KHz at 12V/25amps.. That seems a bit over the top. Can someone tell me if I am waay of the beaten track here?
03:14 PM miss0r2: I mean... I don't want to use this other formula I found. It tells me I need to burn off ~3kw of power in the (R)CD...
03:14 PM miss0r2: Or I am unable to do basic math
03:24 PM djdelorie: miss0r2: is that 25 amps actually represented in the back EMF? I mean, just because you're driving it at 25 amps doesn't mean you're snubbing 25 amps (/me says with no idea what your circuit is ;)
03:25 PM miss0r2: That is true. But as I understand this formula, it uses my driving amperage to determin the back EMF based on my transformers leakage inductance
03:26 PM miss0r2: I just don't like the idea of dumping half my input power into a resistor. :)
03:26 PM djdelorie: I would expect you'd be able to subtract your output power from what the snubber needs to dissipate, but that's just a guess
03:27 PM miss0r2: I also have some guesses :) But I want to get it right.. or atleast in the ballpark, so I can start tweaking. But I am at a loss.
03:29 PM miss0r2: djdelorie: Thanks for giving it a look anyway :) I am just about stomped here :D
03:30 PM djdelorie: on that calculator, I allowed it a faster rise time (62 KHz implies 16 uS) and it picked reasonable values
03:30 PM djdelorie: try 1 uS instead
03:31 PM miss0r2: I can see you are using the calculator for the RC snubber. scroll down a bit further for the RCD one
03:31 PM djdelorie: ok
03:31 PM miss0r2: The RC snubber only uses 0.417watts
03:31 PM miss0r2: for my calculations
03:32 PM miss0r2: for the inductance value, I must assume they are asking about my leakage inductance, as I would not presume to blow my entire inductance as back EMF. Rough guess at my leakage inductance is 3% of my magnetizing inductance which is 6.45uH, which is 0.1935uH
03:33 PM djdelorie: dV depends on the Vds of your mosfet
03:33 PM miss0r2: 650volt breakdown voltage
03:34 PM djdelorie: I get a 512K 4W resistor
03:34 PM miss0r2: You what now?
03:34 PM miss0r2: What jazzfinger routine did you do on your keyboard there? :D
03:36 PM djdelorie: assuming "method 3", I entered 25A 12V 620V 0.2uH and 62 KHz
03:36 PM djdelorie: sorry, method 2
03:36 PM miss0r2: hehe
03:36 PM miss0r2: hah. Interresting
03:37 PM miss0r2: that seems to have gotten it working straight. That is realy strange... but in an awesome way :D
03:37 PM miss0r2: Now I can start to tweak it alot.. :)
03:37 PM miss0r2: Thanks man
03:39 PM djdelorie: np
03:58 PM solarwind: unterhaus metal grommet was the right search term, thanks
04:01 PM _unreal_: hello
06:02 PM solarwind: I think I have every possible combination of CK torch and consumables at this point
06:03 PM solarwind: But things like the large diameter gas lens/push on diffusers are overpriced, so only have one of them and need to protect and improve them with my own diffusers in front
06:37 PM perry_j1987: c'mon new lathe belt pls arrive tomorrow
06:43 PM -!- #linuxcnc mode set to +v by ChanServ
07:05 PM CloudEvil: https://store.tmotor.com/goods.php?id=857
07:05 PM CloudEvil: neat.
07:05 PM CloudEvil: • Frameless Inrunner Motor
07:18 PM snakedGT is now known as snaked
07:46 PM unterhaus_: you can tell there are a lot of old people on the sheldon lathe list, one subject ends up being 6 threads
09:29 PM roycroft: if i had an opportunity to get a sheldon lathe at a decent price i might consider it, and get rid of my current lathe
09:29 PM roycroft: i could use one that's a bit smaller than what i have
09:40 PM unterhaus_: I don't think I would buy one of the regular ones. An R series in good shape is a really nice lathe
09:41 PM unterhaus_: Of course, maybe I see all the problems with the regular ones because there are so many of them
09:45 PM unterhaus_: it's likely sdp/si has one of the most annoying websites possible
09:49 PM flyback: if you want to see some highly tuned motors check out dyson's digital motor
09:49 PM roycroft: i don't think it's near the most annoying one, but it is quite annoying
09:49 PM flyback: they really fine tuned a srm type motor
09:50 PM roycroft: i have a sheldon horizontal mill, unterhaus_
09:50 PM roycroft: when i got that i became interested in their lathes, and they made a number of nice lathes
09:50 PM unterhaus_: I had somehow gotten the idea you had a sheldon lathe
09:51 PM roycroft: no, my lathe is a jet 12x36 from the mid-80s
09:51 PM roycroft: back when jet were making things in taiwan, and used that ugly green paint
09:52 PM roycroft: https://roycroft.us/LatheOnStand1.jpeg
09:52 PM roycroft: https://roycroft.us/LatheOnStand2.jpeg
09:53 PM roycroft: those are some old pictures
09:53 PM flyback: that's the one downside with rare earth motors is low temp range
09:54 PM flyback: unless you use older samarium colbalt magnet ones
09:54 PM roycroft: i built drawer units for that lathe stand years ago
09:54 PM roycroft: and i've moved the lathe to a different part of the shop
09:54 PM flyback: roycroft needs to get lathe
09:54 PM flyback: he doesn't get lathe enough
09:54 PM flyback: hopefully he can get lathe in the back of his truck
09:54 PM * flyback ducks
09:56 PM unterhaus_: I was just looking at the parametric pulley library on thingiverse, pretty impressive
09:57 PM -!- #linuxcnc mode set to +v by ChanServ
09:57 PM unterhaus_: I guess I'll go with printed pulleys on my lathe spindle rather than spending $200 for them from mcmaster
09:57 PM unterhaus_: spindle encoder
09:58 PM flyback: uh
09:58 PM flyback: how do you print pullets
09:58 PM flyback: you can only use pla or abs
09:58 PM flyback: I don't think either of those are really good for pulleys long term
09:59 PM Tom_L: he will discover that soon enough
10:00 PM Tom_L: maybe for encoder since it really has no load
10:03 PM roycroft: i think jt would object if you tried to print his pullets
10:08 PM unterhaus_: yeah, don't try to print chickens
10:09 PM XXCoder: you wouldnt download a chicken
10:09 PM unterhaus_: acetal pulleys work fine in applications like this
10:09 PM unterhaus_: so I can't imagine there would be a problem with pla
10:10 PM unterhaus_: when I was looking into the metric gear set, there are people driving their gearboxes with 3d printed pla pulleys
10:10 PM unterhaus_: lots more load than an encoder
10:11 PM unterhaus_: how many 3d printers have pla timing pulleys? 100000?
10:12 PM unterhaus_: pullets are a different matter entirely
10:14 PM flyback: if you can do acetal, that would be good
10:14 PM Tom_L: i certainly wouldn't set the bar using a 3d printer as an example :)
10:14 PM flyback: acetal is a gear/etc rated plastic
10:15 PM Tom_L: unterhaus_, did you check with sdp-si?
10:15 PM flyback: they use those for some food and chemical processing where they can't have luberication
10:15 PM unterhaus_: I'm not going to be putting anywhere near the load of a 3d printer on these pulleys
10:15 PM flyback: although acetal is a bit of a wuss when it comes to chemicals
10:16 PM unterhaus_: Tom_L just looked, I need a pulley with a 2.75" bore
10:16 PM flyback: unterhaus_, it's not just load dude
10:16 PM Tom_L: oh
10:16 PM flyback: it's temp and stability
10:16 PM flyback: and wear
10:16 PM flyback: 3d sand printers are pretty cool
10:16 PM unterhaus_: you have experience in this?
10:16 PM flyback: you can print all kinds of molds for metal parts
10:17 PM flyback: I have read a little about plastics and gears
10:17 PM unterhaus_: I had plastic toys 58 years ago, but that doesn't help me right now
10:17 PM flyback: learned some from repairing washing machines
10:18 PM flyback: https://all3dp.com/2/pom-acetal-delrin-3d-printing/
10:18 PM flyback: that would be excellent if your 3d printer can handle delrin/acetal
10:18 PM flyback: that's a well used gear, etc plastic
10:18 PM unterhaus_: let me help you, repeat after me, "I have no relevant knowledge about the expected lifetime of a pla printed timing pulley under near no-load conditions"
10:18 PM flyback: repeat after me
10:19 PM flyback: pla is known to be a brittle plastic with no good wear rating
10:19 PM flyback: also repeat "BITE MY "CANUCK"...........................................CANUCK!'
10:19 PM * flyback hurls veegee at unterhaus_
10:20 PM flyback: yep they sell acetel 3d filament
10:20 PM flyback: just checked
10:22 PM flyback: I don't have to be an expert to read about general behavior of pla
10:22 PM Tom_L: no but it makes you look smarter
10:22 PM flyback: yeah I know
10:23 PM flyback: well I learned something new today than you can print acetal/delrin
10:24 PM Tom_L: the local vo'tech printed some timing belts
10:25 PM flyback: unterhaus_, btw delrin is a nylon if you didn't know already
10:25 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/threading/prints/plastic_prints.jpg
10:25 PM Tom_L: the red one was printed
10:25 PM flyback: neat
10:25 PM roycroft: you could print some pulleys to use for sand casting or investment casting aluminium or bronze ones
10:25 PM Tom_L: the vase is 1 layer thick
10:27 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/threading/prints/Ti_print2.jpg
10:27 PM Tom_L: ti printed as one piece
10:27 PM flyback: the post office switched from metal gears to delrin cause it allowed them to run without lube or use lubes that don't mix with paper dust easily
10:27 PM flyback: neat
10:28 PM XXCoder: yeah. herringbone too
10:28 PM XXCoder: you basically cant take those gears out
10:29 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/threading/prints/3d_printer2.jpg
10:29 PM Tom_L: one of their printers they were setting up
10:29 PM Tom_L: i never got to see that one in action
10:29 PM flyback: we aren't telling you not to print pulleys unterhaus_
10:30 PM flyback: just think you shouldn't use abs or pla
10:30 PM Tom_L: yeah use Ti
10:30 PM Tom_L: :)
10:30 PM XXCoder: nylon :P
10:30 PM CaptHindsight[m]: flyback: just to pick on you for no particular reason https://www.differencebetween.com/what-is-the-difference-between-delrin-and-nylon/
10:31 PM Tom_L: they had some filament with metal fillers in it as well
10:31 PM flyback: yeah glass reinforced plastic print would be good also
10:31 PM flyback: or metal reinforced
10:31 PM flyback: not loading captain_morgan
10:32 PM flyback: err CaptHindsight[m]
10:32 PM roycroft: you could print it in pla and then hire an alchemist to conjure it and convert it to gold
10:32 PM flyback: ok I was wrong I thought derin was a nylon family member
10:32 PM CaptHindsight[m]: any real conurerer would not even need the PLA print sheesh
10:33 PM Tom_L: i did too but i haven't used it much at all
10:33 PM CaptHindsight[m]: s/conurerer/conjurerer/
10:33 PM flyback: https://www.protolabs.com/resources/blog/nylon-vs-delrin/
10:34 PM roycroft: yeah, but alchemy is all about transmutation
10:34 PM CaptHindsight[m]: flyback: protolabs people are practically Canadians!!
10:34 PM roycroft: not all conjurers are alchemists
10:35 PM * Tom_L thinks flyback is secretly canadian
10:36 PM * flyback enjoys some ham wrapped in white cheddar
10:37 PM roycroft: that proves you're not canadian
10:37 PM * CaptHindsight[m] is cheese agnostic
10:37 PM roycroft: if you were, you'd be eating back bacon smothered with processed cheese food
10:38 PM CaptHindsight[m]: speaking of canadians, hockey and women, the medal game is on now
10:38 PM roycroft: unless you were french canadian, in which case you'd be eating poutine
10:39 PM CaptHindsight[m]: who would have thought that this years Olympics would be so full of scandals?
10:39 PM roycroft: um
10:39 PM roycroft: it's in china
10:39 PM roycroft: so everybody :)
10:40 PM Tom_L: CaptHindsight[m], i thought that was a given for the Olympics
10:40 PM Tom_L: it's a contest to see who can cheat the best
10:41 PM CaptHindsight[m]: I laughed when right before the Olympics they mentioned out loud that no politics would be allowed
10:41 PM roycroft: and the russians are participating
10:41 PM roycroft: so everybody, again
10:41 PM XXCoder: didnt bother to watch any of olymics
10:41 PM roycroft: and it's the olympics, so everybody yet a third time
10:42 PM flyback: i refuse to ever watch
10:42 PM CaptHindsight[m]: and right in the opening ceremonies the NBC announcer goes on and on about Hong Kong and Taiwan polices in China
10:42 PM flyback: when it's contreolled to rediculous levels by media companies
10:42 PM flyback: runners aren't allowed to have a diary
10:42 PM flyback: cause that's competing with moosefucker news etc
10:43 PM CaptHindsight[m]: i watched a little through the Canadian broadcasts
10:43 PM unterhaus_: can't believe they are letting the cheating skater compete
10:43 PM CaptHindsight[m]: was a nice break from US TV
10:43 PM roycroft: i was going to avoid the games completely this year
10:43 PM roycroft: i have watched snippets
10:43 PM roycroft: but not much at all
10:43 PM flyback: im not even going to bother with cable tv at my own place
10:43 PM flyback: antenna is fine
10:43 PM roycroft: and never intentionally - i've only watched when i turned on the tv and they were on
10:43 PM flyback: whatever I can get, I will get
10:43 PM roycroft: i've been 100% ota for years
10:44 PM CaptHindsight[m]: unterhaus_: well she's not on the Russian team, she is on the ROC team :)
10:44 PM flyback: espically since chris CHIMPnall ruined dr who
10:44 PM flyback: that was the only cable tv channel worth subscribing to
10:44 PM flyback: now I have no reason
10:44 PM unterhaus_: if there weren't mountains in the way we could watch Dr. Who ota
10:44 PM CaptHindsight[m]: the whole ROC team concept is just silly
10:45 PM flyback: I still hope RTD can bring the show back but I doubt it
10:45 PM roycroft: the whole concept of separating politics and the olympics is ludicrouse
10:45 PM roycroft: it's like that sovereign citizen crap
10:46 PM unterhaus_: especially the national medal counts, that's supposed to be non-political?
10:47 PM CaptHindsight[m]: unterhaus_: part of the logic i read is that she is under 18 so it's not her fault so she should not be disqualified at a young age since she will grow older under the stigma of cheating
10:47 PM roycroft: and her meema is the one who gave her the drugs
10:48 PM CaptHindsight[m]: so now all you have to do is have all your athletes under 18 cheating
10:48 PM roycroft: it's not like she got the drugs from her coach
10:49 PM CaptHindsight[m]: nah that would be unheard of in Russia
10:50 PM CaptHindsight[m]: "I got this unbalanced hockey puck from my grammy"
10:50 PM CaptHindsight[m]: same for my ski jumping suit
10:51 PM CaptHindsight[m]: so far the ice dancing looked pretty legit
10:51 PM CaptHindsight[m]: the French pair was amazing
10:53 PM CaptHindsight[m]: US women's hockey team lost their best player in the first game (injured)
10:54 PM roycroft: the alpine skiing events are my favorite
10:54 PM roycroft: although i've taken to snowboarding of late
10:55 PM roycroft: and skeleton/luge/bobsledding is always fun, and are all ape shit crazy sports
10:56 PM CaptHindsight[m]: CBC has them all available for replay, so I skim through the best parts