#garfield | Logs for 2016-11-05

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[00:10:41] <Jymmm> I use a carbide tip blade in my table saw to cut aluminum, leaves a PERFECT finish too. Just have to wear a shower cap to keep the swarf out of your hair, pockets, shoes, etc =)
[00:12:28] <katsmeow> and ear plugs and full face protection
[00:13:06] <Jymmm> No chatter at all, fullface shield isn't a bad idea though, neither is wearing a cup =)
[00:14:58] <rue_shop3> do you use one of the carbide ones for wood or metal
[00:15:03] <rue_shop3> bought a $70 for metal
[00:15:16] <rue_shop3> but I dont think the carbide wood ones are much cheaper
[00:15:41] <rue_shop3> I'm gonna fall asleep
[00:15:56] <rue_shop3> and history has it falling asleep in the shop is bad cause I wake up numb
[00:16:15] <Jymmm> rue_shop3: I have a 10" Craftsman table saw, it came with two carbide tip blades, so the most basic of (carbide tip) blades is what I use to cut aluminum. Not fast or anything, but works great
[00:17:41] <katsmeow> no, the past tense of "reach" isn't "roach"
[00:18:15] <rue_bed> :)
[00:42:33] <katsmeow> [22:38] <kat> give me a cookie, Tiggr
[00:42:33] <katsmeow> [22:38] * [TiggrBot] sends kat a plate of nutter butters!
[00:42:33] <katsmeow> [22:38] <kat> i want another cookie, Tiggr
[00:42:33] <katsmeow> [22:38] * [TiggrBot] tosses kat BIG rum and walnut chip cookies.
[00:42:33] <katsmeow> [22:39] <kat> gimme another cookie, bot
[00:42:33] <katsmeow> [22:39] <[TiggrBot]> kat, didn't i just give you some rum and walnut chip cookies and nutter butters?
[00:43:50] <katsmeow> [22:34] <Panenke> Tiggr, define tiggr
[00:43:50] <katsmeow> [22:34] <[TiggrBot]> 12,0 tiggr : I'm a really bright bot :-)
[00:47:15] <katsmeow> [17:46] <kat> so you are a smart bot, Tiggr?
[00:47:15] <katsmeow> [17:46] <[TiggrBot]> i *am* snart! 2:7-6)
[00:47:15] <katsmeow> [17:46] * [TiggrBot] holds up a memory chip to show,, umm,,  i forgot...
[00:47:15] <katsmeow> [17:46] * [TiggrBot] hurrily plugs it back in. 7B3-7]
[00:49:33] <katsmeow> [21:52] <kat> gimme a freaking cookie, Tiggr
[00:49:33] <katsmeow> [21:52] * [TiggrBot] freaks out some cookies and hands them to kat.
[00:50:50] <katsmeow> [22:01] <sickfella> gimma a can of coke
[00:50:50] <katsmeow> [22:01] <sickfella> gimma a can of coke, tiggr
[00:51:01] <katsmeow> [22:02] <sickfella> gimme a can of coke, tiggr
[00:51:09] <katsmeow> [22:02] <sickfella> gimme a coke, tiggr
[00:51:17] <katsmeow> [22:03] <[TiggrBot]> This establishment has a "no excessive drinking" policy, sickfella
[00:51:51] <katsmeow> [22:07] <kat> gimme a drink, Tiggr
[00:51:51] <katsmeow> [22:07] * [TiggrBot] DCC's kat a intravenous fix of Java 15~14~1,5___1,0P
[00:54:28] <katsmeow> [21:40] <kat> hi Tiggr
[00:54:29] <katsmeow> [21:40] <[TiggrBot]> hiee kat! How are you doing hon? 5 =(,¬ ¿ ¬,)=
[00:54:29] <katsmeow> [21:40] <kat> fine, you?
[00:54:29] <katsmeow> [21:40] <[TiggrBot]> that's nice to hear! :)
[00:54:29] <katsmeow> [21:40] <[TiggrBot]> i'm great! 7B3-3)
[01:08:22] <Jymmm> rue_shop3: This might be a solution for your radiator-in-the-duct backpressure issue... https://www.youtube.com/watch?v=TT9-AfLgfuE
[01:11:55] <katsmeow> [21:39] *** Topic is 'kat puts on impact resistant UV sunglasses to protect eyes, earplugs to protect ears, sunscreen lotions, bug spray, gloves and abrasion-resistant clothes,,, is she borg yet? '
[01:14:04] <Jymmm> It places the lotion in the basket...
[01:54:13] <katsmeow> i am too tired to have a computer keybd under my paws
[01:54:19] <rue_house> arg this library I need the functionality of was written in delphi, then ported to a zillion other languages
[01:54:48] <rue_house> the demo software is 99.95% crap to draw the results
[01:55:22] <rue_house> I cant sort out how to use the actual library
[01:55:49] <katsmeow> i cannot keep my eyes open
[01:55:54] <rue_house> 40% of the library is a library to deal with 128 bit numbers
[01:56:32] <katsmeow> 2^128 = 3.4028236692093846346337460743177e+38
[01:57:22] <rue_house> and its oop
[01:57:33] <rue_house> which would be object oriented pascall
[01:57:37] <rue_house> kill me now?
[01:57:52] <katsmeow> ouch
[01:58:18] * katsmeow must wave gnites
[01:58:25] * katsmeow waves gnites
[02:00:07] <rue_house> why the F&&&&& did he not make a SEPERATE math lirbary
[02:00:51] <rue_house> FOR FOX SAKE
[07:35:08] <Jymmm> rue_shop3 and you cant use any of the zillion other language variants instead?
[11:59:06] <Tom_L> rue_bed when you're ready to install lemme know
[12:34:52] <rue_house> I got bamcam to do it
[12:35:10] <rue_house> but I'll still set up other stuff
[12:49:23] <Tom_L> did you get the file?
[12:49:40] <rue_house> yes
[12:49:45] <rue_house> I plan to try to install today
[12:49:53] <rue_house> I just woke up
[12:50:00] <Tom_L> each directory has a setup.exe
[12:50:06] <Tom_L> you don't need them all
[12:50:19] <rue_house> so I'm attacking something easy and studdying how the owrld ususually phrases the storage of a polyline
[12:50:24] <rue_house> ok
[12:50:38] <rue_house> its not unpacked yet
[12:50:40] <Tom_L> ffm is the 3d
[12:50:53] <Tom_L> iges and dxf you can add
[12:51:00] <rue_house> jester is working on a solidworks solution
[12:51:11] <Tom_L> solution to what?
[12:51:20] <rue_house> he was able to get it to try to profile out cutout in a peice of sheet,
[12:51:31] <rue_house> there is a gcode generator for it
[12:51:35] <Tom_L> what one?
[12:51:42] <Tom_L> there are several
[12:51:50] <rue_house> anyhow, he was working on getting it to cut the peice out instead of shaping it out
[12:51:55] <rue_house> solidworks?
[12:51:57] <Tom_L> what sw version?
[12:52:04] <rue_house> no idea
[12:52:13] <Tom_L> i've got 2015
[12:52:25] <rue_house> he found a machine def for GRBL tho
[12:52:43] <Tom_L> i'd like to see that
[12:52:58] <rue_house> the bamcam is only good for eval, so we need a second working solution
[12:53:07] <Tom_L> you have one
[12:53:10] <rue_house> yea
[12:53:13] <Tom_L> you just don't know it
[12:53:20] <rue_house> I'm still working on writing one too
[12:53:30] <rue_house> interesting stuff has come up
[12:53:32] <Tom_L> it's not parametric like solidworks or catia
[12:53:54] <rue_house> can we put in a dxf and get out an nc file?
[12:54:07] <Tom_L> with the 2d version for sure
[12:54:12] <rue_house> k
[12:54:17] <Tom_L> 3d likes iges better
[12:54:22] <rue_house> at this point, thats all were after
[12:54:41] <Tom_L> i haven't used the 2d version in years
[12:54:46] <Tom_L> it looks the same though
[12:54:53] <Tom_L> just doesn't do 3d
[12:55:12] <rue_house> polylines(Mat& img, const Point** pts, const int* npts, int ncontours, bool isClosed, const Scalar& color, int thickness=1, int lineType=8, int shift=0 )?
[12:55:28] <rue_house> 3d tries to shape everything out of a block
[12:55:31] <rue_house> thats useless to me
[12:55:59] <rue_house> I'm not a university kid who uses a 50lb aluminum block for each little sheetmetal project! :)
[12:56:10] <rue_house> drives me crazy
[12:56:18] <Tom_L> define the material
[12:56:20] <Tom_L> then it won't
[12:56:27] <rue_house> solidworks did
[12:56:38] <Tom_L> with this you can do it one of 2 ways
[12:56:39] <rue_house> it used scanning to cut out a 2d profile from sheet
[12:56:48] <rue_house> so he's working on figuring it out
[12:57:01] <Tom_L> define the geometry and add tools to it or just define the tool path if you know where it's supposed to go
[12:57:15] <rue_house> polylines(Mat& img, const Point** pts, const int* npts, int ncontours, bool isClosed, const Scalar& color, int thickness=1, int lineType=8, int shift=0 )
[12:57:26] <rue_house> hmm
[12:57:28] <Tom_L> wtf is all that gibberish?
[12:57:41] <rue_house> shift is useless, linetype is useless
[12:57:44] <Tom_L> i've got a sherline post for it
[12:57:46] <rue_house> colour is useless
[12:58:06] <rue_house> Tom_L, there is no sherline to it
[12:58:16] <rue_house> its a sherline hardware, with diy motors
[12:58:22] <rue_house> 1mm ball screws
[12:58:28] <rue_house> so 2000 steps/mm
[12:58:33] <rue_house> aka slow
[12:58:46] <rue_house> its a polyline fuction
[12:59:11] <Tom_L> it should be close though
[12:59:29] <rue_house> I'v got a grbl controller in it now
[13:00:07] <Tom_L> create: geometry, profiles, curves, dimensions, user elements, machine events
[13:00:22] <rue_house> just want a stepped down 2d profile
[13:00:41] <Tom_L> curves include polylines, splines, elipse, helix
[13:01:06] <Tom_L> profiles include start profile, line, arc
[13:01:14] <Tom_L> for adding leadin leadout moves
[13:01:15] <Tom_L> etc
[13:02:24] <Tom_L> will generate offset paths easy
[13:02:38] <Tom_L> ie cutter stepover on a pocket or such
[13:02:52] <Tom_L> i usually do them manually because i'm used to it
[13:03:30] <Tom_L> newer solutions will update everything including tool paths etc upon a geometry change
[13:03:34] <Tom_L> this won't do that
[13:04:55] <Tom_L> surface machine includes: straight, projected, roughing, flow line, contour
[13:05:06] <Tom_L> determines how a surface cut is done
[13:05:15] <Tom_L> flow line does it in even layers
[13:05:31] <Tom_L> projected follows the contour throughout the cuts
[13:07:36] <Tom_L> you may not like it but it's been good to me
[13:08:18] <Tom_L> sw 2015 is 64bit bwt
[13:08:20] <Tom_L> btw
[13:08:49] <Tom_L> i've got a 2004 ver that is 32bit
[13:18:12] <rue_house> yea I'm writing polyline code
[13:18:15] <rue_house> or trying
[13:18:25] <rue_house> so I'm working on how the rest of the world is currently doing it
[13:18:58] <Tom_L> why do you need polyline so much?
[13:19:03] <rue_house> libpolyclipping does it all, but the code is such a mess, and the examples are so littered, that its useless
[13:19:28] <Tom_L> why are you fighting it when there are solutions available?
[13:19:35] <rue_house> to trace a shape, you order the segments in it
[13:19:51] <rue_house> I want to keep going on my linux code for cam
[13:20:06] <Tom_L> did jt help?
[13:20:08] <rue_house> an ordered list of lines is a polyline
[13:20:19] <Tom_L> dot to dot
[13:20:37] <rue_house> but things to phrase, like if its closed or not seems to bea popular one
[13:22:18] <Tom_L> you don't know what addon to sw jester is using?
[13:24:33] <rue_shop3> no, there were two, and one just crashed
[13:26:23] <Tom_L> try to find out what he's using and the sw ver
[13:28:47] <Tom_L> catia has it built in too but i havn't learned all about it yet
[13:28:59] <Tom_L> not easy to modify the post on it either
[13:29:08] <Tom_L> requires a 3rd party solution
[13:40:42] <rue_shop3> it would be nice if he just left irc running
[17:45:55] <Tom_L> still having saturday class?
[21:24:53] <katsmeow> Tom, got email from autodesk, asking if i was having trouble downloading, cannot reply to email, all addresses bounce as "do not exist"
[21:25:09] <katsmeow> hell of an org
[22:57:13] <katsmeow> <COUGH>
[22:59:46] <rue_house> well I broken 3 bits now
[23:00:25] <katsmeow> lemme guess,,, not lathe bits
[23:00:50] <rue_house> no 1 1mm milling bit and 2 1mm drillbits used for milling
[23:01:00] <rue_house> so I have a carbide 1mm drillbit in there now
[23:01:08] <rue_house> (the others were hss)
[23:01:28] <katsmeow> rpm and pressure sensitive
[23:02:01] <rue_house> yea it tops out at about 3900
[23:02:18] <rue_house> so I'm down to 10mm/min and 0.2mm layers
[23:02:27] <rue_house> Tom_L, have a cut calculator?
[23:03:43] <rue_house> at 3900 rpm, I think the cut rate is horrid
[23:08:53] <rue_house> according to the calculators I can find, I was fine
[23:09:10] <rue_house> I was 100mm/min at 3800 rpm
[23:09:15] <rue_house> with a 1mm bit
[23:10:22] <katsmeow> good air blowing the swarf out?
[23:10:36] <rue_house> I did an oil flood
[23:10:41] <rue_house> think I should use air?
[23:10:45] <katsmeow> yeas
[23:12:07] <rue_house> ah, this one says 19mm/min
[23:17:18] <rue_shop3> I was assuming the crux was aluminum building up on the edges of the cutter
[23:17:46] <katsmeow> and you broke 3 bits, time to change the game up
[23:17:51] <rue_shop3> I need to try, I think that corn oil is good for cutting
[23:18:16] <rue_shop3> the first bit was carbide 2 flue, the second two were 1mm hss drill bits
[23:18:35] <rue_shop3> this now is a 1mm carbide drill bit
[23:18:39] <katsmeow> drill bits aren't usually sharp enough on the sides to cut
[23:18:48] <rue_shop3> each time I bring down the feed rate
[23:18:53] <rue_shop3> I'm at 10mm/min
[23:18:57] <rue_shop3> 10mm/min
[23:19:15] <katsmeow> and 2-flutes chatter like heck, youo can get dremel mill bits with several flutes
[23:19:19] <rue_shop3> the bits lasted about 2 inches, then started to drag, and fatiuged out
[23:19:29] <rue_shop3> 1mm bit
[23:19:45] <katsmeow> stop when they start to drag, examine them closely, ask them why they are dragging
[23:20:14] <katsmeow> make life more pleasant for them, so they won't break down
[23:20:15] <rue_shop3> I have the tips
[23:21:22] <rue_shop3> edges seem fine, I think it was side load induced failure
[23:21:50] <rue_shop3> maybe 0.4mm is too deep a cut for a 1mm bit
[23:22:51] <katsmeow> umm
[23:23:21] <rue_shop3> I'm at 0.2mm on this cut
[23:26:05] <Tom_L> some aluminum is crap to cut anyway
[23:26:14] <rue_shop3> aluminum and copper
[23:26:18] <rue_shop3> stickey metal
[23:26:20] <Tom_L> copper is horrid
[23:26:24] <Tom_L> stringy
[23:26:28] <Tom_L> and need very sharp tools
[23:26:39] <Tom_L> no cheap chinese shit
[23:26:41] <rue_shop3> and never let stainless heat up
[23:26:54] <Tom_L> don't slow down with it
[23:26:57] <Tom_L> it will work harden
[23:27:46] <Tom_L> the cad cam has built in calculators
[23:27:56] <katsmeow> and if yu melt alum with a tungsten bit, it will break every drill bit you ever use there
[23:28:20] <Tom_L> change your clock.
[23:28:28] <Tom_L> i'm gonna sleep now
[23:28:35] <katsmeow> but i like this clock
[23:28:43] <rue_shop3> Tom_L, whats it say for a 1mm bit, 6061 aluminum, with a max motor rpm of 3900
[23:28:59] <rue_shop3> the most pesimistic number I can find is 19mm/min
[23:29:06] <Tom_L> what mill?
[23:29:11] <rue_shop3> 1mm 2 flue
[23:29:29] <Tom_L> .002 - .003 or so ipt
[23:29:34] <Tom_L> inch per tooth
[23:29:38] <Tom_L> do the math
[23:29:41] <rue_shop3> sound right
[23:29:57] <katsmeow> and blow the teeth clear
[23:31:08] <Tom_L> could be you're not feeding it hard enough
[23:31:19] <Tom_L> it will gauld up just as bad that way as well
[23:31:26] <rue_shop3> broke the first bit at 100mm/min
[23:31:27] <Tom_L> unless the mill won't take it
[23:31:46] <Tom_L> tool flex breaks bits too
[23:31:56] <Tom_L> need a rigid spindle
[23:32:35] * katsmeow shows Tom her 32mm spindle
[23:32:36] <Tom_L> short as possible for the cut
[23:37:23] * katsmeow guesses he spindle is defective and tosses it into the closet
[23:57:41] <The_Jester> heeks cnc..