#linuxcnc Logs

Apr 04 2021

#linuxcnc Calendar

12:13 AM * drdoc has a thousand 3/16" 4-flute ball-nose cutters
12:20 AM drdoc: sometimes ebay bets pay off
12:22 AM drdoc: that's just crazy
12:22 AM XXCoder: rabbit one is interesting as its still functionally printer
12:23 AM drdoc: I need to find a new cam program
12:24 AM drdoc: my access to mastercam is about to go away
12:24 AM XXCoder: aw :(
12:24 AM drdoc: I know, right?
12:25 AM drdoc: damn those people for thinking I need to work there to use their software!
12:25 AM drdoc: I had a chance to buy the whole TopSolid suite for $3k
12:26 AM drdoc: I'd rather fill my bed with broken glass and then have sex in it
12:59 AM XXCoder: lol
01:30 AM Deejay: moin
02:13 AM veegee: Anyone here listen to synthwave?
05:25 AM Tom_L: morning
06:23 AM JT-Cave: morning
06:49 AM SpiritHorse: werd
07:14 AM miss0r: Woah. I'm using 53% of my spindle power at the moment! The most I've used yet. facemill with three positive rake inserts for alu, each a radius of 8mm, 3mm DOC 60mm stepover in 6062 T6.
07:14 AM miss0r: Sounds and looks great :)
07:15 AM miss0r: 1200 RPM 500mm/min
07:29 AM JT-Cave: cool
08:44 AM JT-Cave: I should go and start a fire...
08:45 AM miss0r: shouldn't we all... :]
09:07 AM roycroft: i have to go to work again today, but only for a couple hours
09:32 AM Tom_L: 57F currently
12:11 PM _unreal_: 73f here
12:29 PM _unreal_: cutting out an other keychain blank
12:29 PM _unreal_: got a guy at work who wants one
12:29 PM _unreal_: :/
12:37 PM ar: 7°C here
12:45 PM _unreal_: ya you can keep winter
01:00 PM ar: well, it is late evening
01:00 PM ar: almost 8PM
01:09 PM _unreal_: just hit 2 here
01:10 PM roycroft: aah, done with work
01:11 PM roycroft: my boss sent me a long email with all the other stuff he wants me to do today, but i'm ignoring it :)
01:12 PM roycroft: "since you're working today anyway, perhaps you could take a couple minutes and look at these things ..."
01:12 PM roycroft: and then lists 8 hours worth of work
01:12 PM roycroft: i did an off-hours maintenance that cannot be done during business hours - that is the only reason i am working on easter sunday
01:13 PM drdoc: give 'em an inch...
01:14 PM roycroft: i'm going to go drill and tap holes in a minute
01:14 PM roycroft: a must more eastery thing to do than sit in the office, imo :)
01:14 PM drdoc: yup
01:15 PM roycroft: it's more eastery because easter is supposed to be a holiday, and drilling holes is my choice
01:15 PM drdoc: I'm signing up for free trial periods for CAM software
01:15 PM roycroft: i should be able to make my own choices on a holiday
01:15 PM roycroft: freecad has some cam support
01:15 PM drdoc: then I'll be drilling holes too
01:15 PM drdoc: last time I tried freecad it made me stabby
01:15 PM drdoc: but that's been some while
01:16 PM roycroft: it has a unique user interface
01:16 PM drdoc: more unique than Fusion 360?
01:16 PM drdoc: ;)
01:16 PM roycroft: yes, quite more
01:16 PM drdoc: wow
01:17 PM drdoc: F360's CAM flow is beyond me
01:17 PM roycroft: ok, drawing printed out, so i know where to drill my holes
01:17 PM drdoc: excellent
01:17 PM * roycroft heads off to do some drillin' and tappin' and assemblin'
01:17 PM drdoc: yay!
01:17 PM drdoc: happy funday
01:35 PM veegee: https://www.reddit.com/r/retrobattlestations/comments/mjtpfp/atari_pc1_with_amber_ega/
01:35 PM veegee: I'm going to start collecting vintage CRTs
01:36 PM veegee: I just love how emissive pixels look compared to shitty LCDs
01:36 PM veegee: That beautiful glow and halo around the text. It feels like the machine is alive and we're living in the future when I work on old CRT consoles
02:29 PM NoGodDamnIdea: hey guys
02:30 PM drdoc: heyo
02:35 PM miss0r: 'evening
02:35 PM Tom_L: afternoon
02:36 PM miss0r: I'm doing the 2. gen oil filter consoles
02:37 PM miss0r: I got rid of the ridiculous cut in from the side
02:37 PM Tom_L: too much hassle holding them?
02:37 PM miss0r: yeah
02:37 PM miss0r: cutting parameters were also ridiculous
02:38 PM miss0r: I made a new design, where the oil filter is mounted at 90 degrees to the original - which clears up alot of space for just doing it with a facemill
02:39 PM miss0r: now the total machining time is down to 1hour 15minuts, including setup for each unit
02:39 PM miss0r: which means it is now in the green
02:41 PM Tom_L: that's kinda the idea
02:42 PM miss0r: You don't say :]
02:42 PM Tom_L: just get a 9 axis lathe and cut it down even more :)
02:43 PM miss0r: I think I need to start making batches alot larger than the demand to get a proper turnaround time on such a machine :D
02:44 PM Tom_L: is there quite a demand?
02:44 PM miss0r: no
02:44 PM Tom_L: don't make more than you can get rid of
02:44 PM miss0r: Indeed
02:45 PM miss0r: which is why I don't run out investing in a damn expensive machine to do it faster :D It will never make me back my money on this
02:47 PM Tom_L: you can also make other parts on it ya know :D
02:47 PM Tom_L: you know you want a fancy lathe...
02:48 PM miss0r: I know.. i *DO* want one :D
02:48 PM miss0r: But for a one man operation like mine, a 9axis cnc lathe is a bit out of the scope, sadly
02:49 PM miss0r: On other news; I became a godfather today - My best friend had a little baby girl this morning
02:49 PM Tom_L: awesome
02:49 PM * miss0r will show up when they get home from the hospital with a 160cm tall teddybear... (payback time)
02:50 PM Tom_L: no, you get all noisy toys
02:50 PM Tom_L: with extra batteries
02:51 PM miss0r: I have kids too you know. and one of them is still at the age where he would love to get some himself... I need to cover my bases here
02:51 PM miss0r: also, when I had my kids, he came over with a rather large teddy each time(quite nice toys)
02:52 PM miss0r: So, I'm doing payback x2... No noisy toys. I would like to still be able to look his wife in the eyes
02:52 PM miss0r: The noisy toys I have other recepients for.
02:52 PM Tom_L: heh
02:54 PM miss0r: A friend of mine gave my first born this electromecanical butterfly, that sorte drives wobbely around on the floor making hellish noises. I'm sure he bought it good faith ect... But I tripped on it one night in the dark, and fell backwards on our coffee table splitting it right in half and waking up the entire house... Good faith or no, he is getting some realy nasty noisy stuff when the time comes.. But it would
02:54 PM miss0r: seem he is playing it safe and is staying single
03:03 PM Tom_L: a push popper is a great one on bare floors. the kids just love them
03:06 PM miss0r: what is that?
03:08 PM Rab: veegee, re: water pressure buffer, a standard tank won't do what you want because water isn't compressible. You need something analogous to a nitrogen accumulator in a hydraulic system.
03:09 PM _unreal_: milling the first part of my new z motor mount
03:09 PM _unreal_: finally figured out how I can do it
03:10 PM Tom_L: miss0r, https://www.fisher-price.com/en-us/product/corn-popper-cmy10
03:10 PM _unreal_: hard part will be flipping the part over and re-aligning everything to do the second part
03:11 PM Rab: veegee, and such a product exists, in the form of a common well tank. It uses a gas-charged vinyl bladder inside a larger tank to maintain pressure between a cycling pump and intermittent consumption. https://www.pentair.com/en-us/products/residential/water-supply-disposal/water-supply-pumps/flotec-fp7110t-42-gallon-pre-charged-pressure-tank-tall-vertical.html
03:16 PM miss0r: Tom_L: Hahahaha That thing looks beautiful
03:16 PM miss0r: also, theres no batteries for the parents to "loose" :D
03:17 PM XXCoder: just glad i dont have kids
03:17 PM miss0r: I also have dreams like that from time to time, XXCoder
03:18 PM XXCoder: i cant imange toys are like now lol
03:21 PM _unreal_: sucks times up already have to go get the kid
03:21 PM _unreal_: 3 hour.... tour......
03:21 PM miss0r: :-D
03:21 PM _unreal_: well I got the motor mount side done
03:21 PM miss0r: I hope you have an audio book to keep you company
03:22 PM _unreal_: when I get back with luck I'll get the mounting holes done
03:22 PM _unreal_: if I get that done I'm a HUGE step closer to getting the new z stepper installed on my laser etcher
03:22 PM _unreal_: ! I should post one new photo before I run off
03:28 PM -!- #linuxcnc mode set to +v by ChanServ
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03:33 PM miss0r: _unreal_: Where is it then ?! :D
03:34 PM veegee: Rab it's water + air
03:34 PM veegee: fill with water to 50% or so, then pump in compressed air to around 100 PSI
03:34 PM veegee: that'll make the pump turn on automatically when its pressure switch opens
03:34 PM XXCoder: miss0r: lol audio book is as appealing to me as being stuck in plain white room with nothing but a chair for me to sit on
03:35 PM XXCoder: ie its very boring because i cant hear ;)
03:35 PM veegee: Rab yeah I know about the bladder tanks. Why do they have a bladder at all? Why not just air and water?
03:36 PM miss0r: XXCoder: Hehe I guess. But as I am my own boss, I accept that I can hear if the machine does something stupid with one ear, while listening to an audiobook with the other
03:38 PM XXCoder: :)
03:39 PM miss0r: But at the moment I have no battery left on my bluetooth headset.. so I am stuck here with you guys ;D
03:39 PM XXCoder: ohh damn
03:39 PM XXCoder: sorry im boring lol
03:39 PM miss0r: hehe
03:40 PM miss0r: I have the last unit in the mill on a very tried and true program by now
03:42 PM miss0r: xxcoder: making these: https://imgur.com/a/RDxCEsX
03:43 PM miss0r: those workpieces start out life as 85x85x105mm
03:43 PM Rab: veegee, the bladder is needed because otherwise the air would be introduced to the water supply. And I suppose it would eventually get flushed out.
03:44 PM XXCoder: in some systems air would cause damage
03:44 PM XXCoder: in other systems, air could cause water flow to stop
03:45 PM XXCoder: mis interesting part
03:45 PM Rab: veegee, according to the Flotec literature it's the reverse: precharge the bladder, then turn on the water. Otherwise the tank fills with water and there's no room for air.
03:46 PM miss0r: XXCoder: I designed it that way to get away from thar ridiculous slot I did with a slitting saw on the last generation :)
03:48 PM Rab: I have a 42g Flotec tank because I installed a commercial flush toilet in my house. The toilet valve needs a 1" line to develop enough flow; the service for the entire house is 3/4". So the tank charges through a check valve, with enough volume to operate the toilet for 3-4 flushes before needing to wait.
03:48 PM XXCoder: mis cool :)
03:53 PM veegee: Rab you mean air dissolving into the water?
03:53 PM veegee: that makes sense
03:54 PM veegee: I'm not worried about filling the tank with water because I would manually calibrate the volume of water to air ratio at the right air pressure
03:55 PM veegee: But yeah I guess I can see air dissolving into the water and then coming out of solution being a problem
03:55 PM veegee: I don't care about losing the air though, easy enough to pump air in with a compressor
03:56 PM veegee: I'll take a look at the product you linked
04:04 PM Rab: veegee, dissolving seems not unlikely, but I mean that if there's enough flow to and from the tank that the air might just get flushed out as bubbles. Eventually the charge would be gone.
04:04 PM veegee: Yeah that's fine, I can easily have a line hooked up to my air compressor
04:04 PM veegee: and a pressure regulator
04:05 PM Rab: My application is extreme, moving upwards of 2 gallons in a few seconds, and it flushes out any residual air pretty quick after I have the system open for any reason.
04:06 PM veegee: Mine only needs 16L/min
04:07 PM veegee: the pressure is to overcome the stupidity of the hose fittings like valves that have tiny orifices
04:07 PM Rab: veegee, if the pressure drops too far, or if there's a leak in the system, I think you can see that all the water plumbing might be purged with pressurized air. Sounds like a headache to me.
04:07 PM veegee: There will be a one way valve
04:08 PM veegee: definitely not worried about that. I have plenty of check valves
04:08 PM veegee: And the output is only for the pressure washer/garden hose
04:08 PM veegee: So it's quite far downstream of all other equipment like faucets and stuff
04:08 PM Rab: OK, I missed that part.
04:09 PM Rab: Yeah, def need a check valve. Other than that, not a big deal.
04:09 PM veegee: But 50m of PEX and garden hose is quite a lot and the pressure washer does 16 L/min
04:10 PM veegee: PEX is so annoying having to straighten the tubes from the coil
04:11 PM veegee: I need to rig up a device with a bunch of sheaves and heat that straightens it properly
04:11 PM vuko is now known as Guest46332
04:11 PM veegee: I should have just gone with copper
04:12 PM veegee: Could have made nice flare fittings and all that :(
04:24 PM JT-Shop: 7/16" OSB $41 a sheet!
04:24 PM Tom_L: must be alot better product now ehh?
04:24 PM XXCoder: isnt that like 15 before
04:25 PM JT-Shop: $8
04:25 PM JT-Shop: was a typical price for that
04:25 PM XXCoder: jeez
04:25 PM XXCoder: high demend
04:25 PM Tom_L: wonder what the excuse is for the increase?
04:26 PM XXCoder: tom demend.
04:26 PM XXCoder: lots people staying home with nothing to do
04:26 PM XXCoder: combined with fewer workers producing those
04:36 PM veegee: So annoying. 60 PSI static water pressure, but insta drops to 25 PSI when someone flushes the toilet
04:36 PM veegee: god damn thin service pipe into my industrial unit
04:37 PM veegee: Even when full pressure available, max flow out the garden hose is only 12 L/min wtf
04:37 PM veegee: That'll starve my pressure washer pump for sure
04:37 PM XXCoder: LOL all aqpperences of that lighted bar prop https://youtu.be/BmJRqZEG4rs
04:38 PM XXCoder: Data, while looking at prop: "extremely well equipped"
04:52 PM JT-Shop: they blame it on covid but it's a croc of shit there is a mountain of it at menards
04:53 PM XXCoder: i hope prices will go down
04:53 PM XXCoder: i want to have projects lol
04:58 PM Tom_L: when the stimulus is gone maybe the price will go down
04:58 PM Tom_L: gotta soak all that up first
04:59 PM Tom_L: seems alot like the false gas shortage of the 70's
05:10 PM XXCoder: 3d printing fun https://cdn.discordapp.com/attachments/582303078372474882/828387948952813638/unknown.png
06:05 PM cnc4life: I need a little help with 7i80HD + 7i40HD x2 + 7i37TA. To start off I loaded the bitfile for the svst8_4 on the 7i80 and only setup the primary 3 axis XYZ and left the other two pages of I/O empty. When I start linux cnc it says hm2_7i80hd.0.pwmgen.pwm_frequency not found. My config was built with Pncconf.
06:06 PM cnc4life: if I disable the effected line it just moves to the next for the error. I know it is at least communicating as it identifies the card at startup.
06:32 PM enleth: have you seen Tormach ZA06?
06:33 PM enleth: they somehow managed to integrate a modified KUKA KR6 R900 with their own control cabinet running ROS, with no KUKA-provided software whatsoever
06:33 PM enleth: and they intend to make an actual product out of it
06:34 PM enleth: I can't even begin to imagine the hoops they had to jump through to get a deal like this sorted out with KUKA
06:35 PM enleth: unless they did something completely insane like refurbishing and retrofitting second-hand units
06:39 PM enleth: I can't figure out whether the arm itself is any of the stock KUKA setups - if it is, it's one of the more unusual confiugure-to-order options
06:39 PM enleth: if they actually did their own casting for the upper arm, it's even more insane
07:19 PM enleth: from a livestream done by one of the Tormach guys, it looks like they use ROS for path planning, but LinuxCNC HAL is used to manage the servo drives
07:20 PM enleth: (ROS is https://www.ros.org/, if you're not familiar with it)
08:00 PM roycroft: well all i was planning to do this weekend regarding my metal storage rack was unload the materials from my van, but i ended up building the whole thing and installing it
08:01 PM roycroft: and i am absolutely over the moon about having it - i've needed one for years, and now i have it
08:01 PM roycroft: and all the bits of metal that were stashed in random places have a hoe
08:01 PM roycroft: home
08:01 PM roycroft: it's not good for shorts, but that's something i was already planning on addressing
08:02 PM roycroft: it will help keep inventory down too - i found a lot of duplicate sizes that i really don't need in duplicate
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08:38 PM _unreal_: ve7it, hello
09:30 PM drdoc: MeshCAM - anyone use it?
09:46 PM Bleepshop: roycroft: I did that a few weeks ago. I got sick of tripping over all the various bits of steel
09:48 PM Bleepshop: and aluminum I've been collecting and decided to build a stock rack. I managed to fill it [4'x6'x12'] with the steel and now I need another one for the ~1200lbs of extrusions and castings I'm saving to smelt.
09:49 PM * Bleepshop wants to do 'Lost PLA' casting and make some decent cast parts.
09:52 PM roycroft: i don't have nearly that much material
09:52 PM roycroft: but enough that it was in the way and hard to keep track of
09:59 PM drdoc: that doesn't really take much
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10:22 PM roycroft: the rack i built is just over 5' long, because that's how big i could make it with the materials i had, but it holds 10' lengths just fine
10:23 PM drdoc: nice
10:23 PM drdoc: that's a good day's work, dude
10:24 PM drdoc: Did you end up welding it or bolting?
10:24 PM roycroft: neither
10:24 PM roycroft: i screwed it together
10:24 PM drdoc: ah
10:24 PM roycroft: lots of tapping
10:25 PM -!- #linuxcnc mode set to +v by ChanServ
10:25 PM roycroft: it took longer than if i welded it, but i was able to keep all the powdercoating intact, so it was worth the extra time
10:25 PM drdoc: yep
10:25 PM drdoc: plus, portable
10:26 PM roycroft: yes, i can move it if i need to
10:29 PM drdoc: tomorrow is the Big Experiment
10:30 PM drdoc: my router is half plastic - I printed some of the plates for testing the design
10:31 PM drdoc: I don't think it's rigid enough to machine the aluminum replacements, but I'm going to try graving the outlines and spot drilling the holes
10:32 PM Tom_L: router may be too high rpm
10:33 PM drdoc: Tom_L: I picked up a cheapish 600W spindle, so we'll see
10:34 PM Tom_L: i went for lower rpm on mine. i wanted more torque
10:34 PM Tom_L: 1.2kw
10:35 PM drdoc: something in that range is my goal
10:36 PM drdoc: I think this gantry machine will end up being the PCB & wood router and something like that design you posted the other day for metal
10:37 PM drdoc: this MeshCAM seems like it's making sane toolpaths, and it has post for lcnc
10:38 PM Tom_L: how much do they want for it?
10:38 PM Tom_L: it's only 2.5d right?
10:38 PM drdoc: $250
10:38 PM drdoc: yeah
10:39 PM Tom_L: mmm
10:39 PM roycroft: meshcam is not very expensive
10:39 PM drdoc: and not a lot of control - it's "the easiest CAM program on the planet"
10:39 PM drdoc: meaning, you do what it wants
10:39 PM roycroft: if it works well i might take a look at it when i'm close to having my cnc conversion done
10:39 PM Tom_L: i'm just glad i've never been faced with that problem
10:39 PM drdoc: plus, it only accepts STL or drawings
10:40 PM Tom_L: i don't like stl
10:40 PM Tom_L: but that's just me
10:40 PM drdoc: roycroft: it runs in MacOS, which is a big plus
10:40 PM drdoc: Tom_L: STL is a horrid format
10:40 PM roycroft: yes, that's nice
10:40 PM drdoc: I'm also looking at HeeksCAD/CAM and SheetCAD
10:41 PM roycroft: and you can fed it .dwg an .sldprt, amongst other things
10:41 PM roycroft: so i can keep using the cad software i have
10:41 PM drdoc: meshcam?
10:41 PM roycroft: yes
10:41 PM drdoc: I haven't seen .sldprt mentioned
10:42 PM roycroft: hmm
10:42 PM roycroft: maybe not
10:42 PM roycroft: it says solidworks users use meshcam
10:42 PM Tom_L: i'm mostly used to exchanging iges files
10:42 PM roycroft: maybe they have to export to some other format
10:42 PM drdoc: they must be exporting to STL
10:42 PM Tom_L: but that's full 3d
10:42 PM roycroft: yeah, i see - it says stl and dfx
10:42 PM roycroft: oh well
10:43 PM drdoc: Tom_L: I was about to say, I expect I'll end up with something at least iges capable
10:43 PM Tom_L: i've done dxf but need to elevate them to use in my cad cam
10:43 PM drdoc: right
10:43 PM Tom_L: mine is an old commercial product i've used a long time
10:43 PM Tom_L: but it works great, just not state of the art
10:44 PM Tom_L: full 3d
10:44 PM drdoc: honestly FlatCAM can be made to do 2.5D but that's a pain
10:44 PM drdoc: Tom_L: which one?
10:44 PM Tom_L: smartcam
10:44 PM Tom_L: it was the leader back then just over mastercam
10:44 PM drdoc: I've heard of it, but never seen it
10:44 PM drdoc: my old job tried to teach me GibbsCAM
10:45 PM drdoc: that was a misery
10:45 PM Tom_L: you can write your own post which was a plus back then
10:45 PM drdoc: I bet
10:45 PM drdoc: is it still maintained?
10:45 PM Tom_L: it's sold a few times but i think you can still buy it
10:46 PM Tom_L: i haven't followed it much since then
10:46 PM Tom_L: point control had it back then
10:46 PM drdoc: ah
10:46 PM Tom_L: for small shops, mastercam seems to be the one to have now
10:46 PM drdoc: I *could* keep using mastercam, but I much prefer running legal
10:47 PM Tom_L: my kid has a student copy of the latest version
10:47 PM roycroft: smartcam must be expensive - they don't publish their pricing on their website
10:47 PM Tom_L: i haven't looked at it
10:47 PM Tom_L: it was ~6k back then
10:47 PM Tom_L: depending what you got
10:47 PM drdoc: ah
10:47 PM drdoc: I'm looking more in the BobCAM range...
10:47 PM Tom_L: i've got full 3d and lathe
10:48 PM drdoc: I like MC but it's way way more than I really need
10:48 PM roycroft: when my mill is converted, i probably won't need any cam software for a while
10:48 PM drdoc: got a backlog?
10:48 PM roycroft: the stuff i'll be doing at first will be pretty simple
10:49 PM drdoc: ah
10:49 PM Tom_L: jt has some files to generate some patterns
10:49 PM Tom_L: might wanna look at those
10:49 PM drdoc: I was learning MDI programming on work's old Mazak when I got laid off
10:50 PM drdoc: where would one find them?
10:50 PM Tom_L: my kid runs some big zimmermans
10:50 PM Tom_L: 25' slabs crane loaded
10:50 PM drdoc: wow
10:51 PM Tom_L: https://gnipsel.com/linuxcnc/index.html
10:51 PM Tom_L: you may find something there
10:51 PM drdoc: I worked in a shipyard in... '78? They had a mill that set down on the part
10:52 PM drdoc: magnetic feet, like a foot drill
10:52 PM Tom_L: yeah
10:52 PM drdoc: I was all into welding then, so that's the extent of what I noticed
10:53 PM drdoc: ugh
10:53 PM drdoc: I have a friend who's just certain that I should set this machine up as an 80% finisher
10:54 PM drdoc: he's on the edge of making himself unwelcome
10:54 PM drdoc: thanks for the link
10:55 PM Tom_L: there are some things you can load in linuxcnc as well
10:55 PM Tom_L: i've never tried them
10:55 PM drdoc: I want to try AutoLeveler
10:56 PM drdoc: a lot of PCB blanks are bowed or warped, and it's not like you can just face them
10:57 PM drdoc: trying to keep a clean cut can be tough
10:57 PM Tom_L: i tried milling them once and decided etching was easier for me
10:57 PM drdoc: I'm still on the fence
10:58 PM XXCoder: tom can alway use cheap diode laser as exposer
10:58 PM XXCoder: then etch
10:58 PM Tom_L: i don't do much of it anymore anyway
10:58 PM drdoc: the problem with etching is that then you gotta drill N-hundred holes
10:58 PM Tom_L: i did alot of smt so not too many holes
10:58 PM drdoc: yeah
10:59 PM XXCoder: lots super cheap pcb makers nowdays
10:59 PM drdoc: most of what I do is through hole, for example keyboards
10:59 PM Tom_L: anything worthwhile i'd send off to be made
11:00 PM drdoc: XXCoder: a 375x250mm prototype isn't all that cheap
11:00 PM drdoc: I'll cut the first one, at least
11:01 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/etching/etch_index.php
11:01 PM Tom_L: i used to do a few but not much anymore
11:02 PM drdoc: looks like a good result
11:02 PM XXCoder: clean
11:03 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/temp/tiny/tinyboard2.jpg
11:03 PM Tom_L: those are sot23-6
11:03 PM Tom_L: pretty small
11:03 PM drdoc: yes
11:03 PM Tom_L: with 3 traces under it
11:04 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/temp/tiny/tinyTPI2.jpg
11:04 PM Tom_L: avr attiny 10
11:05 PM drdoc: what did you use for resist?
11:05 PM Tom_L: laser toner
11:05 PM Tom_L: i tried various papers etc
11:05 PM drdoc: I've never gotten anywhere near that clean
11:06 PM veek: https://www.engineeringtoolbox.com/awg-wire-gauge-d_731.html why does he say 'diameter of a solid and stranded wire with the same AWG is not identical. The diameter of a stranded wire is larger than the diameter of a solid wire. ' ULAWM1569 28AWG 7/36 implies what exactly https://br.omega.com/omegaFiles/auto/pdf/HW3000.pdf 7 strands of 36AWG conductor with a total 28 AWG correct? so what's with the Solid core???
11:13 PM W1N9Zr0: "The AWG tables are for a single, solid and round conductor. The AWG of a stranded wire is determined by the cross-sectional area of the equivalent solid conductor. Because there are also small gaps between the strands, a stranded wire will always have a slightly larger overall diameter than a solid wire with the same AWG."
11:22 PM veek: W1N9Zr0, thanks
11:23 PM veek: oh wikipedia
11:43 PM _unreal_: well that was a total pain in the ass. but the replacement z motor is now on my laser etcher. the base is "gluing"
11:44 PM _unreal_: tomorrow after work I'll finish aligning the screw's etc.... then fix the wiring and tune the current
11:44 PM _unreal_: will be nice to have a working z on the laser again
11:44 PM _unreal_: well time for bed
11:51 PM veegee: What's the difference between T90 and THHN?
11:53 PM veegee: Some people are saying THHN/THWN/TWN75/T90 are the same thing