#linuxcnc Logs

Aug 26 2019

#linuxcnc Calendar

02:01 AM Loetmichel: mornin'
02:06 AM Deejay: moin
02:09 AM Loetmichel: *yaaaawn*
02:09 AM Loetmichel: $me walks into the kitchen and sets up a "cowboy coffee" pot
02:09 AM Loetmichel: (throw a horseshoe in, if it doesnt melt its to cold if it sinks its not strong enough)
05:14 AM Tom_L: morning
05:17 AM jthornton: morning
05:27 AM Tom_L: https://www.instructables.com/contest/metal2019/?linkId=72342823
06:55 AM jthornton: yo
06:55 AM miss0r: the guy will come'n pick up his wheel any moment now :)
06:55 AM XXCoder: yo
06:58 AM miss0r: XXCoder: I remachined a motor bike wheel last night. apparently the paintjob couldn't handle alcohol...
06:59 AM XXCoder: no drinking and cycling it looks like
06:59 AM miss0r: so it would seem
06:59 AM XXCoder: really thats quite odd
06:59 AM miss0r: yeah
07:00 AM miss0r: Never gave it a second thought - I almost always use alcohol when machining alu
07:00 AM XXCoder: not wd40?
07:00 AM miss0r: no
07:01 AM miss0r: well, I guess WD40 would make sense if I did alot of facing ect...
07:01 AM jthornton: wd40?
07:01 AM miss0r: but for drilling and tapping I use alcohol
07:01 AM jthornton: soap and water...
07:01 AM miss0r: leaves a nice'n crisp finish
07:02 AM miss0r: also - it is has a low boiling temperature so it keeps the alu nice'n cool so I don't get chip welds
07:03 AM miss0r: since starting to use alcohol for alu, I'll never go back to wd40.
07:04 AM miss0r: when I do more than just semi manual machining I use regular flood coolant
07:04 AM jthornton: I've never tried alcohol for machining
07:04 AM XXCoder: interestijng
07:05 AM miss0r: jthornton: I can realy realy recommend it for alu.
07:05 AM Loetmichel: jthornton: i like it for all kinds of aluminium machining
07:05 AM Loetmichel: i use Isopropyl alcohol though
07:05 AM Loetmichel: smells less than ethanol and leaves no residue when evaporating
07:06 AM miss0r: Loetmichel: "look at me, I have all the money in the world" :P
07:07 AM Loetmichel: miss0r: hmm???
07:07 AM miss0r: Loetmichel: Just messing with you. :) I just feel that isopropyl is a bit pricy for cutting fluid
07:07 AM miss0r: but it is nice, yeah
07:07 AM miss0r: it works the same as ethanol, but leaves no residue
07:08 AM Loetmichel: miss0r: i buy it (99,5%) in 10 liters canisters for cleaning. so its here at the company anyways
07:08 AM Loetmichel: also its pretty cheap
07:08 AM miss0r: hmm.. I'll need to re-lookinto that.
07:09 AM Loetmichel: around 3 eur the liter :-) https://www.ebay.de/itm/10-L-Liter-99-9-Ausgieser-ISOPROPANOL-ISOPROPYLALKOHOL-2-Propanol-CLEANER/123527462376
07:09 AM Loetmichel: for example
07:09 AM miss0r: ha... I take that back - I don't know what I was looking at earlier
07:10 AM miss0r: I found a local supplyer than can sell me the stuff for a quite fair price
07:10 AM miss0r: bye bye ethanol fumes. I will miss you :D
07:13 AM Loetmichel: be aware that the 99% stuff IS ignitable though
07:13 AM Loetmichel: (dont ask how i know... ) ;)
07:13 AM miss0r: absolutly - its the same with the 97 ethanol I ordinarily use
07:13 AM miss0r: 97% *
07:13 AM Loetmichel: ...especially when used in a flower vaporizer pump ;)
07:14 AM miss0r: holy :D thats one small spark away from a flamethrower!
07:14 AM Loetmichel: indeed
07:14 AM miss0r: I just have it in one of those bottles with a small nozzle on the end of a pipe...
07:14 AM miss0r: for manually injecting it to the work
07:14 AM Loetmichel: nice method to find that arcing spindle plug though ;)
07:14 AM Loetmichel: *fffump* "ah!"
07:14 AM Loetmichel: :-)
07:15 AM miss0r: hehe yeah
07:15 AM miss0r: as mentioned; I only realy use it for the manual operations. Other than that I use the regular flood coolant
07:15 AM * Loetmichel has a CNC 6040
07:15 AM miss0r: I use it for the drilling, reaming & tapping ect (if I run it manually)
07:15 AM Loetmichel: no flood coolant there ,)
07:15 AM miss0r: meh? :)
07:15 AM miss0r: hehe
07:16 AM Loetmichel: for tapping i started to use bike chain lube... works a charm... -> https://www.youtube.com/watch?v=Dwotc3oRdtw
07:16 AM miss0r: a machine that cuts alu AND! washes the floor?! thats a real bargin
07:17 AM miss0r: sure. but I wouldn't use it for reaming though - you might very well end up making the holes oversize
07:17 AM XXCoder: i just use rapid tap oil lol
07:17 AM Loetmichel: yes
07:17 AM XXCoder: probably epensive but then I dont buy em
07:18 AM Loetmichel: XXCoder: had none at hand
07:18 AM Loetmichel: so i tried that wd40 chain lube bottle
07:18 AM Loetmichel: and it worked SOOO good ;)
07:18 AM XXCoder: cool
07:18 AM miss0r: customer for the wheel just pulled up. fingers crossed
07:19 AM Loetmichel: with alcohol you have to redip the tap every 2 or 3 holes
07:19 AM Loetmichel: with the chain lube it holds for about 10
07:20 AM miss0r: hmm...
07:20 AM miss0r: Interresting
07:20 AM miss0r: I am wondering; does it do any evaporation to keep the material cool?
07:20 AM miss0r: (not that it matters in that thin sheet there, but anyway)
07:21 AM Loetmichel: and yes, i am pretty ruthless to push that 3mm tap thru the alu at 1300 rpm ;)
07:22 AM Loetmichel: no, but it is extremly high lubricating film stability. it runs with so much less torque than dry or with alc its a totally different job
07:22 AM Loetmichel: i suspect that chain lube to contain PTFE powder or something like that
07:22 AM jthornton: I wonder if that would work for a M3 form tap
07:23 AM Loetmichel: never tried that
08:13 AM miss0r: costumer payed happily (but boy does he talk).. and is now on the way to the paint shop to make his case there
08:19 AM jthornton: glad that worked out good
08:26 AM JT-Shop: I've tried to blast PC off and gave up...
09:06 AM skunkworks: a little better.. bottom right hand corner needs work... http://electronicsam.com/images/greenmachine/IMG_20190825_152339.jpg The 4plex outlets are great - 2 powered 2 switched.
09:08 AM skunkworks: beachbumpete1_: !
09:11 AM skunkworks: probably mist, flood for now.
09:55 AM Loetmichel: HA! I REALLY like that new MoI "CAD"... friday morning boss came by and said: "I need those 4 PSUs in aluminium enclosures with filters." So i did. 2 times designing an enclosure in MoI, 4 times milling the parts, threading and folding the sheet metal: all done in 2 days. And the best part: not even ONE screw hole in the wrong place. The two shells fit like a glove... :-)
09:55 AM Loetmichel: -> http://www.cyrom.org/palbum/main.php?g2_itemId=17502&g2_imageViewsIndex=1
10:02 AM mozmck: Loetmichel: is thsi what you are talking about? https://moi3d.com/
10:13 AM Loetmichel: mozmck: yes
11:15 AM flyback: https://www.youtube.com/watch?v=mZ8l9MPAoyk
11:15 AM flyback: for you guys'
12:12 PM extorr is now known as extor
12:57 PM FinboySlick: flyback: You might like this guy's 'Origin of Precision' series: https://www.youtube.com/channel/UCfsznjef2zGJnrCRQBXqo6Q/videos
01:10 PM miss0r: I just bought a box full of inserts and shell, end & facemills that uses them for $80
01:29 PM miss0r: https://imgur.com/a/lNW17ou all that is in the photo (200+ inserts, the small plastic bags in the corner is all sorts of spare parts for the indexable mills(screws pads ect) alot of tooling) plus 2x 30mm H7 reamers, some larger drills with MT3 tapers... $80 ! I just took one look down the top of this box and decided I would bid on it :D
01:29 PM miss0r: not sure if I'll ever use most of it - but heck, if just one of those mills come in handy, I will have earned my money
01:35 PM SpeedEvil: :)
01:35 PM miss0r: Unrelated story: Anyone want to buy some cheap facemills? :D
01:38 PM miss0r: holy... theres a bunch of ceramic inserts in there as well
01:51 PM FinboySlick: miss0r: That's quite a score.
01:56 PM miss0r: FinboySlick. yeah, I thought so too
01:57 PM FinboySlick: miss0r: It's not a Schaublin so I'm not too envious.
01:59 PM miss0r: schaublin tooling? :D
02:00 PM FinboySlick: Nah, I just envy all the schaublin owners.
02:06 PM miss0r: with good reason. most all of what they've ever made is great equipment
02:11 PM FinboySlick: miss0r: Missed an opportunity to buy a Schaublin 53.
02:11 PM miss0r: *sigh*.. it happens
02:11 PM miss0r: Another one will come along - they are passed from owner to owner as they retire
02:12 PM FinboySlick: Heh. I probably would have no place to put it. My basement slab is not thick enough for one of those.
03:54 PM Deejay: gn8
03:55 PM jthornton: night
03:56 PM Tom_L: afternoon
03:57 PM roycroft: it is, indeed, afternoon
03:57 PM roycroft: and a relatively good one at that
04:05 PM Tom_L: JT-Shop, what's the Outer Banks have to see? never been there...
04:06 PM Tom_L: i assume you meant NC
04:09 PM Tom_L: been to Winston Salem Greensboro area but not much further east
04:18 PM JT-Shop: museums wright bros, 1/2 scale iron side boat fully operational, light houses, sand dunes restaurants etc
04:18 PM Tom_L: the mrs is related to the wright bros
04:19 PM Tom_L: sounds like a fun trip
05:09 PM jdh: outer banks rock
05:11 PM JT-Shop2: working on the wrong side of the AC sucks...
06:04 PM _unreal_: I have a stepping motor I'm not sure what its power rating is
06:04 PM _unreal_: oz/in
06:06 PM _unreal_: stp-57d505 other numbers on it 127k18073
06:06 PM _unreal_: I'm trying to find the oz/in rating for this motor
06:06 PM _unreal_: its on my cnc machine annd I have an other motor I could swap out. the other motor is a 100oz/in but I dont know if the current motor is that rating or higher?
06:08 PM CaptHindsight: JT-Shop: not as bad as some 120V AC going through you :)
06:10 PM CaptHindsight: https://www.mpja.com/download/17461ms.pdf
06:11 PM CaptHindsight: MFG: SHINANO KENSHI, P/N: STP-57D505 ,, NEMA: 23, COIL: 5.3VDC/1A, TYPE: 2 Phase Uni-Polar 5 lead
06:11 PM CaptHindsight: no torque given
06:11 PM _unreal_: ya I've been trying to find it for some time :S
06:11 PM _unreal_: its a good motor dont get me worng
06:12 PM _unreal_: I'd just like to swap it for a more powerful one I have IF the other one I have is more powerful
06:12 PM _unreal_: the other one I have draws more amps btw
06:12 PM CaptHindsight: fire them both up, measure the torque
06:12 PM _unreal_: I dont have any easy method for doing so
06:12 PM _unreal_: I hve no weights
06:13 PM _unreal_: this other motor is rated at 2.5A
06:13 PM CaptHindsight: have a 10:1 set of pulleys? oz/in torque wrench
06:14 PM _unreal_: the one on the machine is 1amp
06:14 PM CaptHindsight: see which one turns harder relative to each other
06:14 PM _unreal_: heh
06:14 PM _unreal_: That would be a bit of a pain in the ass I have no easy way of doing that
06:14 PM _unreal_: Granted I'd have to take the cover off my motor controller to adjust the amps regardless
06:15 PM _unreal_: still :S
06:15 PM _unreal_: I think this other motor is stronger regardless
06:15 PM CaptHindsight: "to the victor goes the spoils"
06:15 PM _unreal_: heh
06:15 PM CaptHindsight: who is victor?
06:16 PM _unreal_: one of them will go to my Z
06:16 PM _unreal_: My z needs a stronger motor reardless
06:16 PM _unreal_: I'm happy with my current XY motors BUT Y is more powerful then my X for sure
06:18 PM _unreal_: I'm ripping the Starboard with a 4 flute end mill right now
06:18 PM CaptHindsight: use a cordless drill to turn each stepper...
06:18 PM _unreal_: I'm cutting out the main body for my daughters cnc
06:18 PM _unreal_: ?
06:18 PM CaptHindsight: see which one hurts your tongue more when you hold all the wires on it
06:18 PM _unreal_: ! that I could do
06:18 PM CaptHindsight: please put it on youtube
06:35 PM _unreal_: 30min of milling to go sigh
06:36 PM _unreal_: and I still need to do a surfacing pass on the thing
06:36 PM _unreal_: I really should do a
07:04 PM _unreal_: just finished cutting the first part for my daughters little cnc machine
07:04 PM _unreal_: just cut the base
07:42 PM _unreal_: just emptied my little vacuum for my cnc WOW that F'er was ful
07:43 PM _unreal_: and I have to admit its working great
07:58 PM infornography: excellent
08:09 PM _unreal_: infornography, I'm using a 12v CAR cleaning vacuum
08:10 PM infornography: Oh, i bet that does fill up quickly
08:10 PM _unreal_: yes
08:10 PM _unreal_: not very strong in the vacuum range but very low power
08:10 PM _unreal_: works great for my small cnc machine
08:11 PM infornography: does it turn on via gcode then?
08:11 PM _unreal_: no :/
08:11 PM _unreal_: I could but have not gone that far
08:34 PM -!- #linuxcnc mode set to +v by ChanServ
09:32 PM flyback is now known as phylback
09:32 PM phylback is now known as flyback