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[01:26:59] <rue_bed> http://ruemohr.org/~ircjunk/projects/cnc4/
[02:32:27] <Jymmm> cool. But anythign involving welded steel tubing I don't consider WEEEKEND project =)
[12:04:51] <Tom_itx> good stuff rue_house
[16:14:21] <rue_house> Jymmm, why not?
[18:17:02] <Jymmm> rue_bed: you have to have/get the steel, cut to lengths, deburr, weld, grind, paint. Just dont think a weekend is long enought for all that plus everythign else.
[20:23:27] <rue_shop3> hmm, I suppose my horiz bandsaw makes that easier for me
[20:23:42] <rue_shop3> and I have all the metal in stock
[20:23:51] <rue_shop3> whats 'paint' ?
[20:24:24] <rue_shop3> oh, marking left and right with felt pen? is that 'paint'?
[20:41:44] <Jymmm> rue_bed: that stuff that prevents rust. You know that brown stuff on all your steel/boilers/pipes ;)
[21:01:54] <rue_shop3> yea, thats the ferrous oxide that prevents corrosion!
[21:16:32] <Tom_itx> rue_shop3, like they said over there, if you feed too slow it will just gauld on the bit
[21:16:46] <Tom_itx> it's not a center cutting bit so don't plunge with it
[21:16:50] <Tom_itx> start in a hole
[21:16:59] <Tom_itx> you will surely screw it up otherwise
[21:17:29] <Tom_itx> ramping into material is just as hard on a bit if not harder
[21:17:48] <Tom_itx> because it's cutting on the backside of the bit instead of the leading edges
[21:18:19] <Tom_itx> but if you do, ramp feeds are 1/2 to 1/3 regular feeds
[21:19:00] <Tom_itx> that's not one i sent you is it?
[21:19:47] <rue_shop3> yea
[21:19:57] <rue_shop3> yea
[21:20:09] <rue_shop3> its plunging ok at 5mm/min
[21:20:30] <rue_shop3> the what you sent me?
[21:20:37] <Tom_itx> cutters
[21:20:46] <rue_shop3> no, this is a solid carbide one
[21:20:51] <rue_shop3> http://www.freudtools.com/products/product/04-100
[21:20:57] <Tom_itx> saw that
[21:21:05] <rue_shop3> the ones you sent are in a router for slotting tubes
[21:21:12] <Tom_itx> k
[21:21:16] <rue_shop3> well, 2 of them, the rest are for me to play with
[21:21:18] <rue_shop3> :)
[21:21:50] <rue_shop3> its a good excuse to build up tooling stock
[21:22:06] <Tom_itx> http://www.daycounter.com/Calculators/GCode/Feed-Rate-Calculator.phtml
[21:22:26] <Tom_itx> they're all pretty accurate but you need to account for your machine rigidity
[21:22:30] <Tom_itx> and slow it down for that
[21:23:14] <rue_shop3> yea, those online calcs never work out for me
[21:23:19] <Tom_itx> http://hsmadvisor.com/
[21:23:31] <Tom_itx> http://hsmadvisor.com/index.php?page=FSWizard_H
[21:23:34] <Tom_itx> or for your phone
[21:24:19] <Tom_itx> they're designed for production machinery at production feeds
[21:24:27] <Tom_itx> reduce for your machine
[21:24:43] <rue_shop3> at 50% of what they say, I'm at 228mm/min
[21:24:51] <Tom_itx> generally speaking you should be able to take around .002" chip load per tooth
[21:25:03] <rue_shop3> but that dosnt account for cut depth either..
[21:25:07] <Tom_itx> generally aluminum is between .004 - .010" per tooth
[21:25:55] <Tom_itx> it is actually less stress on a cutter to take a full cut depth unless you're profiling
[21:26:06] <Tom_itx> take smaller cuts at full depth
[21:26:55] <rue_shop3> well, I accidently took it at 20mm/min in 1mm passes in a hole, it did fine, but I dont know how close it was to breaking the bit off
[21:26:56] <Tom_itx> and keep the chips clear of the cutter
[21:27:07] <rue_shop3> which has been happening to me on the 1mm bits
[21:27:12] <rue_shop3> yea, I have a puffer
[21:27:29] <Tom_itx> just follow the rules and it doesn't matter what size bit it is
[21:27:46] <Tom_itx> less surface speed on a smaller cutter...
[21:28:05] <Tom_itx> that's why they try to zing them at 10k + rpm
[21:28:18] <rue_shop3> 1mm mill with a cap of 4700rpm is not much feed, esp when the bit is 10mm long
[21:28:27] <Tom_itx> i know
[21:28:33] <rue_shop3> yea, need to finish the new mill!
[21:28:37] <rue_shop3> and then start another
[21:28:47] <Tom_itx> i wound up with around 6 ipm on my boxes
[21:28:54] <Tom_itx> at about 3000 rpm
[21:29:08] <Tom_itx> i didn't wanna push it either
[21:29:49] <Tom_itx> ^^ calculate from that and it will probably work ok
[21:30:48] <Tom_itx> that's why they say to use 2 flute cutters on aluminum, so the material won't ball up on the cutter as bad as 4 flute
[21:31:15] <Tom_itx> use 4 on steel
[21:31:27] <rue_shop3> steel on a sherline!?
[21:31:33] <Tom_itx> probably not
[21:31:43] <Tom_itx> i've done some but very slow
[21:32:04] <rue_shop3> 6ipm is 152mm/min, so still indicating to use over 100
[21:32:25] <Tom_itx> i'd say to try it
[21:32:32] <Tom_itx> or start around 80 anyway
[21:32:38] <rue_shop3> by all accounts it sounds safe
[21:32:48] <rue_shop3> then the only question is pass depth
[21:33:00] <rue_shop3> I'm guessing .5mm will be ok
[21:33:06] <Tom_itx> no more than the cutter diameter and to be safe about 2/3 it
[21:33:08] <rue_shop3> I'm at 0.25mm now
[21:33:38] <Tom_itx> aluminum?
[21:33:44] <rue_shop3> yea
[21:33:51] <Tom_itx> you should be able to go deeper than that ok
[21:33:56] <rue_shop3> by your account no more than 2mm
[21:34:01] <rue_shop3> ok
[21:34:03] <Tom_itx> yeah
[21:34:03] <rue_shop3> :)
[21:34:18] <rue_shop3> I'll try 0.5mm at 100mm/min
[21:34:24] <Tom_itx> just a good general rule of thumb
[21:34:40] <rue_shop3> but I'll have my teeth clentched the whole job
[21:34:54] <Tom_itx> 1/4" shank?
[21:35:01] <Tom_itx> 1/8" cutters?
[21:35:04] <rue_shop3> 1/4
[21:35:12] <rue_shop3> yea, cutter
[21:35:16] <rue_shop3> $30, only have one
[21:35:19] <Tom_itx> i could probabl get you some
[21:35:38] <Tom_itx> i bet i have some
[21:35:47] <rue_shop3> I wonder, I know a guy with a dropship on the other side of the line
[21:35:47] <Tom_itx> maybe not 1/4" shank though
[21:36:27] <Tom_itx> generally 3/8" or 1/2" shank are more common
[21:36:35] <rue_shop3> the sherline has 1/4 1/8 3/16
[21:36:47] <Tom_itx> i can get 1/8" cutters with 1/8" shank for sure
[21:36:54] <Tom_itx> yeah
[21:37:02] <Tom_itx> i don't use those collets though
[21:37:13] <Tom_itx> i got the holders for mine
[21:38:40] <rue_shop3> I'm worried about wearing out the brushes on this machine
[21:39:01] <rue_shop3> I understand their evil to replace, do you know what a new motor goes for?
[21:39:03] <Tom_itx> can you get more?
[21:39:11] <Tom_itx> yeah i had to get one
[21:39:21] <Tom_itx> but with the new ones they put external brushes on it
[21:39:31] <Tom_itx> i screwed one up trying to change them
[21:39:36] <rue_shop3> I'd rather put my own motor on it and wear that out
[21:39:43] <Tom_itx> heh
[21:39:47] <rue_shop3> recall ballpark cost?
[21:39:50] <Tom_itx> i don't think you'll wear em out
[21:39:53] <Tom_itx> way too much
[21:39:58] <Tom_itx> no i don't remember
[21:40:01] <rue_shop3> if we make money, I can put some into it
[21:40:03] <rue_shop3> k
[21:40:14] <Tom_itx> but the new ones have screw holders to replace em
[21:40:21] <rue_shop3> yep
[21:41:29] <Tom_itx> my eyes don't wanna focus tonight
[21:43:02] <rue_shop3> hmm
[21:43:26] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/spindle_board2.jpg
[21:43:39] <Tom_itx> that board on the left is the isolation board for the spindle driver
[21:43:57] <Tom_itx> because the driver floats ground
[21:44:39] <Tom_itx> the other one is to get the non reverse driver to reverse
[21:45:34] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/logic2.jpg
[21:45:44] <Tom_itx> i timed the relays to switch during the zero v deadband
[21:45:54] <Tom_itx> to save the contacts
[21:49:09] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/pendant/profile.jpg
[21:49:14] <Tom_itx> i cleaned that up at full depth
[21:49:49] <Tom_itx> 1/4" plate
[21:50:06] <Tom_itx> and i think i profiled it in 2 passes
[21:50:21] <Tom_itx> iirc it was ~3/16" cutter
[21:50:44] <rue_house> wow
[21:51:07] <Tom_itx> not fast
[21:51:13] <rue_house> is the machine down now?
[21:51:24] <Tom_itx> no but i haven't used it in a while
[21:51:52] <rue_house> armyofevil robots lent me his there, he'd not been using it in 2 years
[21:51:58] <Tom_itx> yeah
[21:52:44] <rue_house> oh the pendant case I got arrived today
[21:52:50] <rue_house> I got it on Nov 15
[21:52:53] <rue_house> arrived today...
[21:52:55] <Tom_itx> i thought you made em
[21:52:57] <rue_house> its big
[21:53:14] <rue_house> I did make one
[21:53:14] <Tom_itx> you didn't print one?
[21:53:16] <Tom_itx> oh
[21:53:18] <rue_house> didn't want to wait anymore
[21:53:33] <Tom_itx> i couldn't find one i liked
[21:53:40] <Tom_itx> and didn't wanna pay $$$ for one
[21:53:51] <rue_house> I like my printed one better in a few ways
[21:54:04] <Tom_itx> i like mine ok but the buttons are cheap
[21:54:10] <rue_house> less screen space, more button space
[21:54:35] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/pendant/pendant2.jpg
[21:54:41] <Tom_itx> you saw that didn't you?
[21:54:45] <rue_house> https://www.aliexpress.com/item/1-pcs-hot-selling-szomk-abs-plastic-handheld-junction-housing-203-100-35mm-electronics-enclosures-for/32320489918.html\
[21:54:48] <rue_house> https://www.aliexpress.com/item/1-pcs-hot-selling-szomk-abs-plastic-handheld-junction-housing-203-100-35mm-electronics-enclosures-for/32320489918.html
[21:54:56] <rue_house> yea :)
[21:55:02] <rue_house> bit to square for me
[21:55:38] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/pendant1.jpg
[21:55:43] <Tom_itx> i started to design one
[21:55:46] <rue_house> anyhow, this one is pretty big
[21:55:52] <Tom_itx> didn't like where it was going
[21:55:53] <rue_house> wide, large screen
[21:56:02] <rue_house> ah, that looks more ergenomic
[21:56:09] <rue_house> but no screen :)
[21:56:15] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/pendant7.jpg
[21:57:02] <rue_house> I'm working on rewriting my file spooler to handle the pendant I made
[21:57:09] <Tom_itx> i scrapped that idea
[21:57:13] <rue_house> I'v got an encoder comming too...
[21:57:16] * rue_house wits
[21:57:21] * rue_house waits even
[21:57:31] <Tom_itx> encoder?
[21:57:35] <Tom_itx> pendant thing?
[21:57:41] <rue_house> the encoder
[21:57:50] <rue_house> still waiting, should be any week now
[21:57:55] <Tom_itx> those are cheap if you look
[21:57:59] <Tom_itx> ~16 bux
[21:58:00] <rue_house> yep
[21:58:50] <Tom_itx> i blew one out when my psu shorted way back when
[21:58:53] <rue_house> https://www.aliexpress.com/item/5V-CNC-numerical-control-manual-pulse-generator-RGT600-001-100B-5L-hand-CNC-machine-tools-encoder/32452353366.html
[21:59:58] <rue_house> eek, its going to be a snot to fit on this controller
[22:02:53] <Tom_itx> you know what's bad about writing free code for somebody?
[22:03:05] <Tom_itx> you gotta support it until you die
[22:03:22] <rue_house> hmmm, some rough layout indicates I may need to put the button on a touch screen
[22:03:32] <rue_house> yea
[22:03:38] <rue_house> the database is evolving?
[22:03:47] <Tom_itx> they're pc idiots
[22:03:51] <Tom_itx> it's done
[22:03:58] <Tom_itx> but....
[22:03:59] <rue_house> hmmm
[22:05:48] <Tom_itx> http://www.ebay.com/itm/cheap-CNC-MPG-Hand-wheel-manual-pulse-generator-encoder-Siemens-5V-100PPR-60mm-/152396348015?hash=item237b87ba6f:g:pc0AAOSwd4tTtVpy
[22:05:59] <Tom_itx> that's about the best i can find on ebay now
[22:06:08] <rue_house> US $17.88
[22:06:13] <Tom_itx> yeah
[22:06:19] <rue_house> so, not much better
[22:06:25] <Tom_itx> no
[22:06:31] <Jymmm> rue_shop3
https://www.aliexpress.com/item/CNC-Mach3-USB-Handwheel-4-Axis-Pulse-50PPR-Optical-Encoder-Generator-MPG-Pendant-for-CNC-Router/32782081526.html
[22:06:37] <Tom_itx> comes from china anyway
[22:06:38] <rue_house> the size is descieving, those things are big
[22:06:47] <Tom_itx> that's the small one!
[22:06:53] <rue_house> Jymmm, 50ppr opposed to 100ppr
[22:06:58] <Tom_itx> they make a 80mm? one i think
[22:07:21] <Tom_itx> 100 is preferred
[22:07:23] <rue_house> Jymmm, those are also not gonna work for me
[22:07:25] <rue_house> 60mm
[22:07:37] <rue_house> Jymmm, did you see the one I made?
[22:07:56] <Tom_itx> i think your case turned out good
[22:07:58] <Jymmm> https://www.aliexpress.com/item/Free-shipping-generador-manual-mpg-handwheel-5v-6-terminals-60mm-cnc-controller-handle/32391322434.html
[22:08:06] <Jymmm> rue_house: no
[22:08:34] <rue_house> Jymmm, the one I bought was $18usd
[22:08:45] <Jymmm> ah
[22:08:47] <rue_house> http://www.thingiverse.com/thing:1964013
[22:08:48] <Tom_itx> for some reason the black ones seem to cost more
[22:10:00] <Jymmm> I think traditional pendants are a bit aged
[22:10:10] <rue_house> :P
[22:10:17] <rue_house> I like to turn wheels
[22:10:19] <Jymmm> use a 3dconnex
[22:10:28] <Jymmm> 6axis
[22:10:44] <rue_house> you know bits are from $2-$30 ea?
[22:11:01] <rue_house> you crash, and it dosn't matter how much it cost, its useless
[22:11:39] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/etching/mills1.jpg
[22:11:47] <Tom_itx> those were around $25 ea
[22:11:52] <rue_house> ouch
[22:11:58] <Jymmm> then dont do that
[22:12:04] <Tom_itx> carbide
[22:12:14] <rue_house> it would be easy if wireless accelerometer positioned
[22:12:27] <Jymmm> http://www.3dconnexion.com/products/spacemouse/spacemousewireless.html
[22:13:01] <rue_house> great way to crash a cnc machine
[22:13:05] <Tom_itx> space mice suck
[22:13:13] <Jymmm> Tom_itx: bs
[22:13:25] <Jymmm> rue_house: Again, dont do that, it's that simple
[22:13:25] <Tom_itx> they have dozens of em at the uni, nobody uses them
[22:14:01] <Jymmm> it's not a mouse, and thats what ppl are trying to turn it into is the issue
[22:14:21] <Tom_itx> Jymmm, i was gonna try one but after trying them at the uni decided not to
[22:14:31] <Tom_itx> i know what they are
[22:14:46] <Jymmm> just because a tractor has wheels and an engine, doens't make it a corvette
[22:15:02] <Tom_itx> bugatti
[22:15:47] <Jymmm> If you have a touch off system, you shouldn't be able to crash anything
[22:16:49] <rue_house> I could make money building and selling 4-20mA instrumentation meters
[22:16:53] <Jymmm> I really do know what you mean rue_house, but it seems you are focusing strictly on that one thing... dont break bits
[22:17:07] <rue_house> even from china they are almost $300
[22:17:51] <Tom_itx> kat's not been around
[22:17:52] <rue_house> "I'm not old, I'v just been young a really long time."
[22:18:43] <Tom_itx> went to the dr's office and by the time they called me in it was time for my follow up visit
[22:21:27] <rue_house> hah, I hear ya
[22:32:48] <Jymmm> Damn, I can get RGB matrix easily/cheap, but bi-color, forget it =(
[22:36:34] <rue_shop3> mmm black and green
[22:38:05] <Jymmm> rue_house: bi-color...
http://imgur.com/gfBKBYS
