#linuxcnc | Logs for 2015-12-15

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[00:00:09] <andypugh> Which servo amp?
[00:00:49] -!- asdfasd [asdfasd!~332332@2.222.32.205] has joined #linuxcnc
[00:02:41] <robinsz> The one that failed is a Copley
[00:03:31] <robinsz> kinda like this
[00:03:32] <robinsz> http://mediaserver.voxtechnologies.com/FileCache/4122Z%20-%20-7910997231-wm-2.jpg
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[00:08:56] <andypugh> I bought a couple of AMCs on friday, to spin the new servo I hope will beef up my dividing head.
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[00:10:41] <robinsz> I've found a couple of much later Copley digital drives, 20A @90 and 180V
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[00:10:50] <robinsz> for £50 each :)
[00:11:09] <robinsz> they'll take PWN and direction directly too
[00:11:17] <robinsz> in torque mode
[00:12:22] <andypugh> I was looking for some 240V input ones, but they seem surprisingly rare. I got some 80V ones, I don’t know if they will spin the 300V servo fast enough yet. But £40 for the pair seemed worth a gamble. (25A / 80V)
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[00:14:14] <robinsz> ah, yeah, high voltage ones are rare
[00:15:06] <robinsz> it may be worht your while to go brushless ac drives
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[00:15:28] <robinsz> the Baldor drives are easy enough to get
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[00:21:27] <robinsz> I'm currently being tempted with another doomed project ...
[00:21:48] <robinsz> it could be "interesting" ...
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[00:22:47] <robinsz> andypugh, http://www.zenithair.net/introduction-750-stol/
[00:23:06] <robinsz> they sell the plans, you just need to rout out the bits and rivet it together, right?
[00:23:13] <robinsz> I mean, how hard can THAT be?
[00:23:52] <robinsz> I reckon you would need to set aside at least a whole afternoon for the routing.
[00:24:03] <robinsz> and buy a big box of rivets
[00:24:25] <robinsz> probably not from screwfix .. as they will be cheap shit
[00:25:08] <andypugh> Looks like fun, and no more than a few weeks work :-)
[00:25:30] <andypugh> Did you see my rivet squeezer?
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[00:37:23] <irontree9> G code looks uglier than it is right????
[00:40:03] * Jymmm snickers
[00:40:19] <toastyde1th> yeah, generally. depending on who/what wrote it
[00:40:44] <toastyde1th> machine generated gcode can be gnarly as fuck
[00:41:16] <toastyde1th> or if the person who wrote it is a douchenozzle. the professional term.
[00:41:37] <toastyde1th> although several of the tool and die makers in their 70s preferred "fuckwit"
[00:41:47] <toastyde1th> seems to be a generational thing
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[00:46:49] <irontree9> Well I was able to get the default "LinuxCNC" cut out and that is just about it. Generated some g-code from a png but can't get the scale and depth right. Just chewing through documentation atm
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[00:49:28] <robinsz> andypugh, rivetsqueezer?
[00:49:52] <robinsz> gcode from a PNG? srsly?
[00:49:53] <andypugh> robinsz: Yes, a squeezer. For rivets.
[00:50:08] <robinsz> andypugh, enlighten me
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[00:51:21] <robinsz> irontree9, I have not had any luck ever with 3D carving from graphics ... it just doesnt work like that *unless* you can find a 3D object specifically encoded as gray value = Z axis
[00:51:40] <andypugh> Well, firstly, by default LinuxCNC can take bitmap files and convert to a depth map. So if you open a bitmap instead of a G-code file, you get a raster-scan with depth of the image. Works best with monochrome.
[00:52:05] <cradek> engraved from simple black and white artwork: http://timeguy.com/cradek/01408982148
[00:52:17] <robinsz> yes, but what you dont get is something that resembles the 3D thing you might think it was in the firstplace
[00:52:28] <irontree9> That is basically what it seemed to do, but the resolution was wrong or something.
[00:52:29] <andypugh> And secondly: http://bodgesoc.blogspot.co.uk/2014/04/hydraulicrivetsqueezer.html
[00:53:12] <robinsz> cradek, nice
[00:53:34] <andypugh> What are the feeds and speed settings for silver?
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[00:53:48] <Tom_itx> hmm
[00:53:57] <Tom_itx> i bet it's pretty soft
[00:54:00] <cradek> the spindle was "fast" and the feed rate was "whatever"
[00:54:07] <cradek> I cut it under oil and it never gummed up
[00:54:45] <cradek> the spindle is maybe 15k, the tool was a V pcb trace isolator, so about .008 wide at the tip
[00:55:09] <robinsz> andypugh, nice rivet squeezer
[00:55:23] <robinsz> the plane is all pop rivet
[00:55:56] <robinsz> I have some "interesting" engraving tools for CNC
[00:56:16] <robinsz> its like a ISO40 taper with an air powered spindle mounted in it
[00:56:31] <robinsz> I forget exactly how fast it spins
[00:56:46] <robinsz> 160K comes to mind, it was *stupid* fast
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[00:57:20] <robinsz> i beleve its used in the mold/die industry
[00:59:00] <andypugh> Do you have a use for it?
[00:59:18] <andypugh> I know a chap who might want it for his Deckel.
[00:59:26] <robinsz> it sits around on the "that will come in handy one day" pile
[00:59:52] <andypugh> He makes lovely but tiny things: http://www.f1-2000.co.uk/index.php?f=conrods
[00:59:54] <cradek> wow 160k
[01:00:22] <robinsz> it might have been 90K or 120K .. I cant remember, it is just stupid fast
[01:02:25] <robinsz> ive got some speeder heads as well some place ... 5:1 speedup
[01:02:45] <robinsz> I'll dig them out and photo them, they can be moved on
[01:03:14] <robinsz> i'llprobably keep the nutty air turbine thing
[01:06:34] <andypugh> I would like a BT30 (or any 30 taper) speeder. I keep intending to make one.
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[01:10:43] <andypugh> I have a design in mind for a 10:1 one
[01:11:18] <malcom2073> You're certainly well versed in making your own gears
[01:14:55] <andypugh> I want to try a design with no gears, as it happens.
[01:15:02] <malcom2073> Oh yeah?
[01:16:32] <andypugh> Like this supercharger drive: http://i.imgur.com/pmhTMpn.jpg
[01:17:30] <malcom2073> Ah nice
[01:17:58] <robinsz> andypugh, that guy is a seriously good machinist, and so far I am only on the hardinge conversion page
[01:21:38] <andypugh> He made a super-elaborate DLP printer to print patterns for casting: https://www.youtube.com/watch?v=FscYq5uCys0
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[02:01:38] <Contract_Pilot> Finially wiring up these little machines...
[02:02:12] <Contract_Pilot> Well the controller atleast
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[02:09:13] <os1r1s> pcw_home You around?
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[02:44:18] <irontree9> truetype tracer rocks :)
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[02:56:56] <trentster> howdy - any fusion 360 CAM'ers around at the moment?
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[03:25:00] <pcw_home> os1r1s: yeah
[03:25:50] <os1r1s> pcw_home I would like to find a brushed servo driver to drive small < 30v < 3A servos from a mesa 7i77. Do you have something that would work for that?
[03:26:46] <pcw_home> Not from a 7I77 but from a 50 pin FPGA card (7I30 for example)
[03:28:02] <pcw_home> that is we dont make any analog input drives (drives that would match the 7I77)
[03:28:39] <os1r1s> pcw_home Do you know of any reasonably priced ones? :)
[03:29:03] <os1r1s> pcw_home I've seem people point to AMC ones
[03:37:59] <pcw_home> AMC is probably the most common and cheap though I dont know if they go that small
[03:38:17] <pcw_home> 3A cont or peak?
[03:41:46] <os1r1s> peak
[03:42:01] <os1r1s> pcw_home This is a small sherline/taig size machine
[03:43:22] <os1r1s> pcw_home Sorry, that was incorrect. One like this ... http://www.automationtechnologiesinc.com/products-page/nema23-m-dc-servo-motor/skewed-servo-dual-shaft-3
[03:44:20] <pcw_home> thats 19A peak
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[03:45:00] <os1r1s> pcw_home Yes, I read it wrong the first time. Sorry about that
[03:54:52] <pcw_home> something like this with the current limit turned down to 19A
[03:54:53] <pcw_home> http://www.ebay.com/itm/Advanced-Motion-Controls-AMC-30A8I-LS1-Brushless-Servo-Amplifier-/252194424730?hash=item3ab7f5879a:g:rNMAAOSwyQtV0qhI
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[04:02:01] <os1r1s> pcw_home Ok. Thanks. I had been looking at the 12A8 by AMC
[04:09:07] <pcw_home> that should work also
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[04:17:22] <Erant> toastyde1th: So Melin recommends 125-250SFM in Aluminium Alloys for their roughing end mills, and 0.00225" chip load per tooth for the 3/8" end mill. That sound about right to you?
[04:18:04] <Erant> (Puts me at about 2 - 2.5k RPM at 13-17IPM, which sounds low to me)
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[04:53:21] <zeeshan|2> hss?
[04:53:27] <zeeshan|2> that sounds slow as hell
[04:54:20] <Tom_itx> zeeshan|2!
[04:54:24] <zeeshan|2> tom!
[04:54:32] <Tom_itx> what happened to your bud from Tn?
[04:54:35] <zeeshan|2> no idea
[04:54:37] <zeeshan|2> what happened
[04:54:57] <Tom_itx> dunno, haven't heard much from him
[04:55:04] <zeeshan|2> dude im so tired
[04:55:09] <zeeshan|2> i got 2 interviews tomorrow
[04:55:18] <zeeshan|2> one is a proper position -- i hope i get it
[04:55:31] <zeeshan|2> its crazy how much prep interviews take
[04:56:51] <Tom_itx> you don't just tuck your hair under your hat hitch up your britches and walk in?
[04:57:19] <zeeshan|2> no man
[04:57:26] <zeeshan|2> one of the interviews tomorrow is 3 hours long
[04:57:30] <Tom_itx> long hair freaky ppl need not apply....
[04:57:36] <zeeshan|2> its going to be tough
[04:57:39] <zeeshan|2> but i like challanges
[04:57:42] <zeeshan|2> challenges
[04:57:58] <Tom_itx> that's why i'm learning catia
[04:58:02] <Tom_itx> and something to do
[05:00:01] <zeeshan|2> good :)
[05:00:10] <zeeshan|2> you can get a serious job after that :P
[05:00:16] <Tom_itx> meh
[05:00:21] <Tom_itx> i'm not really looking
[05:00:28] <zeeshan|2> are you retired?
[05:00:33] <Tom_itx> no
[05:00:46] <Tom_itx> but i'm not looking
[05:00:48] <zeeshan|2> o :)
[05:01:04] <Tom_itx> if it was too good to turn down i might consider it
[05:01:35] <zeeshan|2> this job is so awesome man
[05:01:39] <zeeshan|2> i already did the phone interview
[05:01:47] <zeeshan|2> they build heavy duty automation equipment
[05:02:14] <zeeshan|2> my job would be to learn their product for the first two months, then design small parts, then big parts, and after 6 mo if they're satisfied
[05:02:19] <zeeshan|2> i become a lead intermediate eng
[05:02:37] <zeeshan|2> would be leading 3 jr eng and 5 drafts people
[05:02:43] <zeeshan|2> pray for me :P
[05:02:47] <zeeshan|2> (if you pray)!
[05:03:09] <zeeshan|2> its cool cause it involves, concept design, practical design, calculations, and manufacturing
[05:03:21] <Tom_itx> i've got no engineering degree though
[05:03:22] <zeeshan|2> its not oriented to one thing like my current job
[05:03:37] <zeeshan|2> if you do catia, you dont need eng degree
[05:03:38] <Tom_itx> sounds fun though
[05:03:55] <zeeshan|2> if you know design in the sense of cad modelling
[05:03:58] <Tom_itx> they offer 6-8 classes iirc
[05:04:05] <Tom_itx> i plan to take as many as i can
[05:04:07] <zeeshan|2> you can get a very good design related job
[05:04:10] <zeeshan|2> might not be doing calcs
[05:04:22] <zeeshan|2> but you'd be modelling and making things
[05:04:28] <Tom_itx> i'm doing it really to encourage my kid who is taking it
[05:04:36] <zeeshan|2> he should be encouraged
[05:04:42] <zeeshan|2> its a lot better than 99% of the jobs out there
[05:04:44] <zeeshan|2> but im biased :)
[05:04:49] <Tom_itx> i'm about halfway thru the class i'll be starting in Jan :D
[05:04:56] <Tom_itx> using his book doing the lessons
[05:05:07] <zeeshan|2> you should really see if you could find a job that utilizes it
[05:05:10] <zeeshan|2> otherwise you'll forget it
[05:05:19] <zeeshan|2> im clicking around in solidworks tonight
[05:05:26] <zeeshan|2> because ive been using inventor so much i forgot some of the shortcuts!
[05:05:34] <Tom_itx> they guarantee an interview after the 2nd semester with a large aircraft plant here
[05:05:41] <Tom_itx> used to be Boeing, now Spirit
[05:06:04] <zeeshan|2> any education can't hurt
[05:06:05] <zeeshan|2> :)
[05:06:11] <Tom_itx> and all his credits transfer to the local uni
[05:06:29] <zeeshan|2> he kind of needs to decide what he wants to do
[05:06:35] <zeeshan|2> if he's more technical, then college might be better
[05:06:39] <Tom_itx> leaning toward engineer
[05:06:42] <zeeshan|2> technical (hands on)
[05:06:45] <zeeshan|2> if he likes math a lot
[05:06:49] <zeeshan|2> then engineering is a good choice
[05:06:52] <Tom_itx> seems to
[05:07:17] <zeeshan|2> its hard to explain to kids the importance of these years
[05:07:21] <Tom_itx> seems like all the big boys use catia now
[05:07:23] <zeeshan|2> i wish my parents pushed me more
[05:07:39] <Tom_itx> same here
[05:07:44] <Tom_itx> that's why i am
[05:08:00] <Tom_itx> i'm self taught on everything i've done
[05:08:13] <zeeshan|2> i don't mean to put your down
[05:08:16] <zeeshan|2> but that was okay back 20 years ago
[05:08:19] <Tom_itx> i know
[05:08:22] <zeeshan|2> and now you have superior experience
[05:08:28] <Tom_itx> now you need paper
[05:08:31] <zeeshan|2> yea
[05:08:36] <zeeshan|2> or you're not even going to get in the door
[05:08:39] <zeeshan|2> no matter how smart you are
[05:08:47] <Tom_itx> i disagree somewhat
[05:08:51] <Tom_itx> but i know what you're saying
[05:08:59] <Tom_itx> it's about who you know
[05:09:06] <zeeshan|2> yes luck has a lot to do with it :P
[05:09:27] <zeeshan|2> Tom_itx: im sensitive about the topic
[05:09:33] <zeeshan|2> because i have a friend who has no education
[05:09:36] <zeeshan|2> works at a logistics place
[05:09:43] <zeeshan|2> same age as me
[05:09:56] <zeeshan|2> he thinks education is stupid (cause hes making 60k with no education)
[05:10:10] <Tom_itx> could be making 150
[05:10:19] <zeeshan|2> he argues with me that things like F=ma are just theories
[05:10:24] <zeeshan|2> until someone proves them wrong
[05:10:26] <zeeshan|2> it drives me insane.
[05:10:46] <t12> maybe he went to the university of YHBT
[05:10:59] <zeeshan|2> haha t12
[05:11:03] <zeeshan|2> no, he really believes it
[05:11:22] <zeeshan|2> i try to explain to him, F=ma is the reason you can predict how quickly a car is going to stop
[05:11:29] <zeeshan|2> he just doesnt get it
[05:12:17] <Tom_itx> i've always 'got it'
[05:12:24] <Tom_itx> just didn't follow up
[05:12:29] <zeeshan|2> you
[05:12:32] <zeeshan|2> you're not ignorant!
[05:15:08] <zeeshan|2> man my ipad isnt cooperating
[05:15:15] <zeeshan|2> im trying to load my protfolio
[05:15:20] <zeeshan|2> and its just absolutely going to shit
[05:15:29] <zeeshan|2> it cant handle the 3d model app
[05:15:50] <Tom_itx> cause it starts with 'i'
[05:15:51] <Tom_itx> :)
[05:15:54] <zeeshan|2> haha
[05:16:42] <t12> i kinda regret not doing higher ed now
[05:16:51] <t12> not that it was really a consious choice
[05:16:51] <Tom_itx> same here
[05:16:54] <zeeshan|2> t12 how old
[05:16:55] <zeeshan|2> are you
[05:16:59] <t12> 35
[05:17:09] <zeeshan|2> im 31
[05:17:10] <zeeshan|2> :P
[05:17:14] <Tom_itx> you got plenty of time
[05:17:15] <zeeshan|2> its never too late!
[05:17:31] <t12> i mean alot of it has rubbed off
[05:17:37] <t12> having spent lots of years as staff at uni
[05:17:50] <t12> lack of math background is mainly what holds me back
[05:18:04] <zeeshan|2> dude i finished 3 years of a technical college diploma
[05:18:07] <t12> but mainly in learning/doing interesting stuff, monetarily i'm fine
[05:18:08] <zeeshan|2> and i didnt learn any of the math
[05:18:14] <zeeshan|2> just basic calculus
[05:18:20] <zeeshan|2> i was so upset i finished a degree
[05:18:25] <zeeshan|2> I LOVE MATH!!!!!!!!
[05:18:36] <zeeshan|2> if you get the right teacher, its a breeze
[05:18:41] <zeeshan|2> if you get the wrong one, its suicide
[05:18:49] <t12> yeah now its just a matter of carving the time/dedication out
[05:18:53] <t12> which consisintly gets harder
[05:19:14] <zeeshan|2> imo, even with time and dedication
[05:19:20] <zeeshan|2> its very hard to learn on your own
[05:19:28] <zeeshan|2> because you don't know exactly the order of things to learn
[05:19:31] <t12> yeah
[05:19:35] <t12> thats part of time/dedication though
[05:19:39] <zeeshan|2> i have tried to learn electronics on my own
[05:19:42] <zeeshan|2> and failed so hard!
[05:19:43] <t12> like actually going to school for it for enough hours
[05:19:48] <zeeshan|2> microelectronics that is
[05:19:57] <Jymmm> zeeshan|2: That's why you need a studette ;)
[05:19:59] <Tom_itx> i still struggle with some electronics
[05:20:03] <zeeshan|2> t12: are you still at univ?
[05:20:09] <t12> i always work there
[05:20:13] <Tom_itx> but i've programmed µC for quite a while
[05:20:14] <zeeshan|2> you should just go sit in the undergrad classes
[05:20:16] <zeeshan|2> no one will know
[05:20:16] <zeeshan|2> haha
[05:20:20] <t12> they have a labor problem, and they're competing with silicon valley
[05:20:26] <t12> aka they'll never win
[05:20:36] <Jymmm> t12: ?
[05:20:37] <t12> i accidently have a bunch of specialist skills they are always in need of
[05:20:51] <Jymmm> t12: competing how?
[05:20:52] <t12> (computer, unix, hpc stuff)
[05:20:56] <t12> in salary
[05:21:04] <Jymmm> lol
[05:21:09] <Jymmm> where is this?
[05:21:13] <t12> UCSF
[05:21:22] <Tom_itx> haha speaking of that, nasa was looking for some ole farts to program their old junk in the sky
[05:21:25] <Jymmm> heh
[05:21:27] <t12> ucsf is also fairly unique in having no undergrad presense
[05:21:33] <zeeshan|2> haha tom
[05:21:33] <Tom_itx> cobol etc
[05:21:36] <Tom_itx> serious
[05:21:39] <t12> lol
[05:21:40] <t12> ADA
[05:21:43] <t12> whats the shuttle language
[05:21:50] <Tom_itx> way older than that
[05:21:55] <t12> HAL/S
[05:21:58] <Jymmm> QBASIC
[05:22:10] <Jymmm> gorilla.bas ftw
[05:22:18] <zeeshan|2> i always thought hal got it's name from hal from space odyssey
[05:22:19] <zeeshan|2> :(
[05:22:21] <Tom_itx> http://www.popularmechanics.com/space/a17991/voyager-1-voyager-2-retiring-engineer/
[05:22:46] <zeeshan|2> fortran is that old?
[05:22:53] <zeeshan|2> our school uses it for cfd still
[05:22:53] <t12> lot of fortran development still happening
[05:22:54] <Jymmm> oh yeah
[05:22:59] <zeeshan|2> i didnt know that
[05:23:03] <t12> old fortran is pretty annoying
[05:23:20] <t12> the labs i worked for had 100k's of lines of code of fortran for simulations
[05:23:28] <Tom_itx> they'll hire from within if they can
[05:24:18] <t12> a competant young programmer can learn fortran fast
[05:24:26] <t12> the hardware target on the other hand...
[05:24:32] <Tom_itx> i doubt you'd learn all the tricks
[05:24:48] <zeeshan|2> Tom_itx: can you p[ost some drawings
[05:24:50] <zeeshan|2> that you were making
[05:24:54] <zeeshan|2> i wanna draw them in solidworks righht now to warm up
[05:24:55] <Tom_itx> of what?
[05:25:00] <zeeshan|2> any crazy models
[05:25:19] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/practice_drawings/
[05:25:24] <Tom_itx> all those i did in SW
[05:25:27] <zeeshan|2> thank u
[05:25:28] <Tom_itx> from his book
[05:25:34] <Tom_itx> those are models though
[05:25:35] <zeeshan|2> do u have detail drawings
[05:25:38] <Tom_itx> not drawings
[05:25:38] <t12> zeeshan: http://chrisbathgate.blogspot.com/
[05:25:40] <Tom_itx> not scanned
[05:25:51] <Tom_itx> i probably could
[05:25:59] <zeeshan|2> t12: cmon man
[05:26:05] <zeeshan|2> im not looking to spend hours haha
[05:26:10] <zeeshan|2> thats too detailed
[05:26:24] <zeeshan|2> its okay
[05:26:25] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/practice_drawings/Problem34_1.jpg
[05:26:27] <zeeshan|2> ill just build a scale mode
[05:26:31] <Tom_itx> that was his extra credit one
[05:26:35] <Tom_itx> he printed it
[05:26:35] <zeeshan|2> nice
[05:26:52] <zeeshan|2> did he draw half it
[05:26:53] <zeeshan|2> and mirror it
[05:26:54] <Tom_itx> he did em in catia as i helped him in SW
[05:27:05] <Tom_itx> pretty sure
[05:27:12] <Tom_itx> you can mirror the solid too
[05:27:16] <Tom_itx> it's the same on both sides
[05:27:20] <Tom_itx> except the center
[05:27:35] <Tom_itx> exterior pockets are
[05:28:01] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/practice_drawings/problem34.jpg
[05:28:21] <zeeshan|2> ok thats a good one
[05:28:36] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/practice_drawings/problem27.jpg
[05:29:02] <Tom_itx> i'm up to ~20 in catia
[05:29:44] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/practice_drawings/problem32.jpg
[05:29:49] <Tom_itx> that was easy
[05:30:22] <Tom_itx> some are just time consuming
[05:30:32] <Tom_itx> you gotta approach it different in catia over SW
[05:31:40] <Tom_itx> i did that 34 in one evening
[05:31:46] <zeeshan|2> which one to do
[05:31:46] <zeeshan|2> hm
[05:32:01] <Tom_itx> i can post the dwg later
[05:32:07] <Tom_itx> i'll need to scan em
[05:32:12] <t12> http://www.theonion.com/article/us-techno-industrial-base-eroding-due-to-foreign-c-920
[05:32:28] <zeeshan|2> need to do it now
[05:32:31] <zeeshan|2> interview tomorrow morning
[05:32:40] <zeeshan|2> high possiblity they'll make me model something in both inventor and solidworks
[05:32:40] <zeeshan|2> ;P
[05:32:46] <zeeshan|2> so i should be sharp so i can do it quick
[05:33:52] <zeeshan|2> http://tom-itx.no-ip.biz:81/~webpage/cnc/practice_drawings/problem32.jpg
[05:33:55] <zeeshan|2> gonna do this one
[05:38:17] <Tom_itx> was getting 34 for ya
[05:38:27] <Tom_itx> gotta unload the car first
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[05:44:44] <Tom_itx> zeeshan|2
[05:47:28] <zeeshan|2> http://i.imgur.com/TihMrqP.png
[05:47:28] <zeeshan|2> tom
[05:47:29] <zeeshan|2> lol
[05:47:32] <zeeshan|2> i didnt have the drawing
[05:47:37] <zeeshan|2> but i tried to make it to by eyeball
[05:47:46] <zeeshan|2> did yuou do it similar to that?
[05:48:34] <Tom_itx> yeah
[05:48:47] <Tom_itx> the dwg is there now
[05:48:52] <zeeshan|2> thank you
[05:48:53] <zeeshan|2> dude
[05:48:55] <zeeshan|2> after using inventor
[05:48:55] <Tom_itx> some reason it didn't load for me
[05:49:02] <zeeshan|2> i realize how many shortcuts i dont know for solidworks
[05:49:04] <zeeshan|2> i use the gui too much
[05:49:06] <Jymmm> YO DWG, WHUUUUUUUUUUUUUUUUUT UP!
[05:49:09] <zeeshan|2> like for example starting a sketch on a plane
[05:49:17] <zeeshan|2> i press s in inventor
[05:49:19] <Jymmm> ...instead of a train!
[05:49:23] <Tom_itx> gotta go.. mrs just got in from an 18 hr drive
[05:49:27] <Tom_itx> later...
[05:49:28] <zeeshan|2> oki :P
[05:49:29] <zeeshan|2> cya!
[05:53:20] <bobo__> zeeshan|two good luck tomorrow
[05:54:03] <zeeshan|2> thank you
[05:54:04] <zeeshan|2> bobo
[05:54:07] <zeeshan|2> is your name spanish
[05:54:26] <bobo__> not yet
[05:54:35] <zeeshan|2> it means fool in spanish!
[05:54:44] <zeeshan|2> my wifey told me this the other day
[05:54:44] <zeeshan|2> :)
[05:54:51] <zeeshan|2> she keeps calling me bobo now
[05:55:28] <Jymmm> zeeshan in english means stinky poo poo head!
[05:56:05] <bobo__> it should be fool in english,from some of recent goings on
[05:56:24] <zeeshan|2> what do you mean
[05:56:48] <Jymmm> zeeshan|2: (psss, you halo is crooked)
[05:56:49] <bobo__> just stuff in my life
[05:57:05] <zeeshan|2> did you miss out on a machine? :D
[05:57:33] <Jymmm> bobo__: Either LICK IT or have more tequilia, either way it'll be an adventure!
[05:58:20] <toastyde1th> Erant, yep
[05:58:30] <bobo__> sometimes the bar bill gets too high
[05:58:43] <toastyde1th> remember that on a roughing endmill the chip load is not feed divided by the number of teeth
[05:58:56] <Jymmm> bobo__: Less drinking, MORE LICKING then!
[05:58:57] <toastyde1th> but they publish numbers as though it were
[05:59:22] <toastyde1th> and also, with roughing, you want to go very slow. people try to go too much for speed and fall behind on feed rate, when feed is vastly more important
[06:00:04] <Jymmm> http://imgur.com/tMSwESY
[06:00:09] <bobo__> missed out on getting the garage done
[06:00:23] <zeeshan|2> bobo__: winter is here
[06:00:27] <zeeshan|2> you can get it done :)
[06:01:01] <Jymmm> Not mine, but I actually do have a neighbor that has mini donkeys. When she walks them, they will stop at my place and refuse to move till I bring them their carrots =)
[06:03:30] <bobo__> no problem ,eah . come on over after the interview tomorrow and we will put in the concrete floor
[06:04:12] <bobo__> you can tell me how the cats are doing
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[06:09:00] <zeeshan|2> hehe
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[07:59:55] <Deejay> moin
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[09:09:05] <Loetmichel2> *harhar* just found my thumbdrive with my timesheets in it... desperately seeked for a month... in the shopvac underneath the workbench ;-) (had to open it because accidentally sucked up some parts)
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[09:57:15] <archivist> big spindle? http://www.ebay.co.uk/itm/Cutler-Hammer-SVX9000-AC-Drives-Model-SVX100A1-4A1N1-100HP-NEW-/262191498843
[09:58:42] <Contract_Pilot> LCNC first movements.
[09:58:47] <Contract_Pilot> https://youtu.be/VTh52gv0524
[09:59:20] <Contract_Pilot> Now to learn more on HAL and the INI so i can get Path Pilot up.
[09:59:50] <cncbasher> now theirs the nightmare ? , what do you need
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[10:45:27] <jthornton> morning
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[11:50:51] <XXCoder> Contract_Pilot: heh that is a fun stage
[11:50:59] <XXCoder> spinny flags
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[12:48:21] <jthornton> crumb, the helloworld gladevcp example does not work
[12:49:21] <Tom_itx> bugger when sample code doesn't run
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[12:52:48] <jthornton> yea it's bad when the most simple one fails to work
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[13:01:25] <_methods> i had to get reading glasses :9
[13:01:30] <_methods> can't read prints anymore
[13:01:37] <_methods> gettin old sucks
[13:02:13] <archivist> and then two pairs stacked
[13:02:19] <_methods> oh man
[13:02:24] <_methods> plz dont tell me that happens
[13:02:48] <jthornton> I hate to tell you but it don't get better...
[13:03:07] <_methods> thanks for the pick me up lol
[13:03:11] <archivist> may I recommend a stereo zoom microscope
[13:03:27] <_methods> i want to get a monocle
[13:03:30] <_methods> lol
[13:03:41] <_methods> and a top hat
[13:04:43] <archivist> microscope above the lathe is very useful
[13:05:11] <_methods> i'm so used to being able to read microchip labels
[13:05:15] <_methods> now i can't see any of them
[13:06:07] <jthornton> yea, one day I could not read the MSC catalog very well...
[13:06:19] <_methods> ouch
[13:06:22] <jthornton> that sucked
[13:06:31] <jthornton> at least I can see far ok
[13:06:34] <archivist> electronics was the day job....
[13:06:46] <_methods> yeah i can see fine
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[13:07:27] <_methods> far
[13:07:37] <_methods> apparently not close now
[13:07:51] <Tom_itx> there are still printed words???
[13:07:53] <Tom_itx> :)
[13:07:55] <archivist> you must be 40+
[13:08:03] <_methods> yeah
[13:08:37] <_methods> i guess i'll have to start wearing diapers soon
[13:08:39] <_methods> hahahahaha
[13:09:48] <archivist> getting to the age where one has to be careful with farts
[13:10:06] <_methods> hahaha
[13:10:08] <Tom_itx> ghastly
[13:10:27] <_methods> not looking forward to that one bit
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[13:41:30] <jthornton> an older friend of mine kinda gave up when his wife died, then he lost his house last Dec 24th and his son put him in a nursing home a couple of weeks ago, I don't think he will see 80
[13:41:45] <jthornton> it's sad that he gave up on life
[13:43:27] <MrSunshine> https://www.youtube.com/watch?v=zR3abFbgXUw interesting about cylinder squares and stuff =)
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[13:52:57] <knas> has anyone gotten camview-emc running under linuxcnc 2.7 wheezy? having no luck neither downloading directly from apt or compiling the source...
[13:56:24] <Erant> toastyde1th: k, just wanted to check that that's a decent starting point. The IPM seemed low to me.
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[14:02:26] <gregcnc> So what's this about roughing endmill feedrate?
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[14:04:59] <zeeshan|2> gregcnc: youre a roughing end mill!
[14:06:24] <gregcnc> Hi Zee. I've only used them a couple times. I want to use one in a part I'm setting up. Never read anything about feeding them differently.
[14:06:42] <zeeshan|2> gregcnc: they can handle more chip load
[14:08:07] <gregcnc> someone wrote "that on a roughing endmill the chip load is not feed divided by the number of teeth "
[14:10:16] <zeeshan|2> sounds like they dont understand how to calculate velocity
[14:10:22] <zeeshan|2> :P
[14:11:33] <gregcnc> it doesn't sound right to me either. Swiftcarb has some high feedrates for their aluminum roughers.
[14:13:41] <zeeshan|2> from what ive seen you can easily put a 3/8 end mill to .005 chip load no prob
[14:13:48] <zeeshan|2> (rougher)
[14:24:56] <zeeshan|2> gregcnc: the other night i was pushing my machine to the limit
[14:25:15] <gregcnc> radial engagement (chip thinning) accounted for?
[14:26:40] <zeeshan|2> in what
[14:26:43] <zeeshan|2> the .005 feedrate?
[14:26:46] <gregcnc> yes
[14:26:49] <zeeshan|2> no
[14:26:52] <zeeshan|2> that is for simple slotting
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[14:27:22] <gregcnc> OK full chip axial depth
[14:27:41] <gregcnc> what was axial depth?
[14:29:39] <zeeshan|2> 1/4"
[14:29:50] <zeeshan|2> 3 flute
[14:30:01] <zeeshan|2> need lube and serious chip evac
[14:30:20] <gregcnc> right
[14:30:53] <zeeshan|2> i think thats the biggest problem in damn aluminum
[14:30:56] <zeeshan|2> gummy chips
[14:31:01] <zeeshan|2> when youre going super fast
[14:31:24] <zeeshan|2> (even with a roughing end mill)
[14:32:05] <gregcnc> you pretty much need through spindle if you want to get crazy
[14:32:17] <zeeshan|2> ive been pushing my mitusbishi apx cutters to the limits
[14:32:20] <zeeshan|2> they are so bad ass
[14:32:27] <zeeshan|2> i usually baby them
[14:32:49] <zeeshan|2> but now im running them at the recommended speeds:
[14:33:35] <gregcnc> babying tools is waste of time and tool life, as long as you have enough power and rigidity behind it
[14:33:35] <zeeshan|2> mild steel -> @ doc of .276 max, 0.007 ipt, pitch of helical cutting .079
[14:33:45] <zeeshan|2> 550 sfm
[14:34:20] <zeeshan|2> i was taking .1" width of cuts at a depth of .5"
[14:34:24] <zeeshan|2> depth of cut of
[14:34:28] <zeeshan|2> when the helix ramp was complete
[14:34:36] <zeeshan|2> holy cow does it remove metal
[14:34:55] <gregcnc> which machine
[14:35:02] <zeeshan|2> my little baby mikron wf21c
[14:35:18] <zeeshan|2> i have a burn on my forehead
[14:35:20] <zeeshan|2> and neck
[14:35:24] <zeeshan|2> from the chips lol
[14:39:22] <irontree9> I am just dealing with a cheap rotory tool. Dealt with my fir bit jam yesterday. I was lucky the work broke lose and the machine survived. Going to wire up a better kill switch. Clicking a mouse is impossible in a panic.
[14:40:20] <gregcnc> Escape button?
[14:40:32] <zeeshan|2> irontree9
[14:40:34] <zeeshan|2> if youre using linuxcnc
[14:40:37] <zeeshan|2> pressing escape works! :D
[14:40:59] <irontree9> Hell yeah, thanks guys.
[14:41:51] <gregcnc> Watching your Chiron clips Zeeshan. I need to move before i can get a real machine.
[14:42:01] <gregcnc> Mikron
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[14:52:14] <ssi> MORN
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[14:54:18] <irontree9> Anyone have any good ideas about securing the work piece. My Z-axis is real high and I have to lift up all the work when I mount it. Atm I am just testing using adhesive and blocks.
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[14:56:28] <cradek> have a picture?
[14:56:49] <irontree9> have a video brb
[14:58:07] <irontree9> https://www.facebook.com/video.php?v=1045012402205144&pnref=story
[14:58:23] <irontree9> video of the first g-code going through the machine
[15:00:08] <cradek> can you redesign the dremel holder so it can allow you to reach the table?
[15:01:33] <irontree9> I thought about using the rotory extender and mount that but it adds allot of play in the Z
[15:01:50] <irontree9> I figure building up the table would be easier
[15:02:09] <_methods> just screw the workpiece to your table
[15:02:16] <Jymmm> Um, remove the thumb grip and use the threads
[15:02:43] <irontree9> brb let me check that out Jymmm
[15:03:01] <_methods> and remap the stop to your spacebar so it's easier to hit
[15:03:29] <_methods> if you don't have an estop hooked up
[15:05:50] <irontree9> Jymmm, The extender goes to a grinder and it is pretty cheap. I would have to cut a bearing holder that drops down.
[15:06:38] <irontree9> I think I am going to just bolt everything up but yeah all I have is soft limits.
[15:06:47] <Erant> gregcnc: I'm wanting to use a rougher for aluminum. 3/8".
[15:07:02] <Erant> gregcnc: It's a Melin, and they're recommending a 0.00225" chipload.
[15:07:24] <Jymmm> Dremel produced a stand that turned the tool into a drill press. That stand had a bracket that held the tool, but it was "universal" in the respect that it could be attached to anything using just a couple of bolts.
[15:07:30] <Erant> And 250SFM for alu alloy, which comes out to 15-20IPM @ 2.5k RPM
[15:07:48] <Jymmm> If you can find the parts list, you can order just the bracket from dremel directly
[15:07:53] <gregcnc> Erant, Carbide?
[15:07:58] <Erant> Which is probably more than my machine can handle anyway at anything but the shallowest cuts.
[15:08:05] <Erant> HS Cobalt.
[15:08:08] <Erant> So, HSS.
[15:08:29] <gregcnc> That's why the numbers are low.
[15:09:13] <Erant> I ran a 4 flute through 6061 (because my 2 flute was dull as shit) at 0.05" DOC, slotting, 20IPM.
[15:09:22] <Erant> Little over 2.5k RPM.
[15:09:44] <Erant> So I'm curious if I should just increase the engagement a little with the rougher?
[15:09:57] <irontree9> Yeah I had to replace that dremel with a cheap knock off so it doesn't match. However great idea Jymmm, looking at the stand now
[15:10:14] <Jymmm> Here it is... http://www.ebay.com/itm/Dremel-Moto-Tool-Deluxe-Drill-Press-Stand-Model-212-/151917016780
[15:11:24] <irontree9> nice
[15:12:39] <Jymmm> http://stevespages.com/pdf/dremel_drill_press_stand.pdf
[15:12:40] <irontree9> tbh I was going to break out my micrometer, measure, scratch out some sketchy gcode and cut my own.
[15:13:22] <Jymmm> Dremel PN 5294206, Moto Tool Holder Bracket
[15:13:44] <Jymmm> PDF page 5, item #7
[15:14:20] <Jymmm> #6 and #24 too
[15:14:39] <gregcnc> Erant is this what you're looking at? http://www.endmill.com/pages/catalogs/2012/Sections/133-146%20-%20Cobalt%20and%20HSS%20Roughers.pdf
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[15:21:28] <irontree9> seems that my emergency stop is keyed to F1
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[15:35:56] <gregcnc> Is there a DC brushless, 48V, servo control that takes step and direction input? Like a G320, but brushless?
[15:36:28] <archivist> you dont really want step dir do you
[15:36:42] <gregcnc> No, but you can't get a 7i77 if you try
[15:37:02] <gregcnc> i'm considering pico upc tough
[15:38:20] <ssi> man this 7i77 shortage is a disaster :(
[15:39:27] <archivist> just have a little patience
[15:39:57] <gregcnc> had some, but it ran out
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[15:41:51] <archivist> I had the fun of being production manager with a 3 month backlog once :)
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[15:58:00] <Jymmm> archivist: Um, wouldn't that make you a sucky product manager?
[16:01:45] <Jymmm> Our division only had one (very high end) product, but the founder/chief engineer went up and died on us, and so did the division 24 months later.
[16:04:29] <archivist> Jymmm, nope, the cause was high demand and Canon could not supply enough product
[16:05:22] <Jymmm> What, not enough child/slave labor to make more?
[16:05:24] <archivist> it is very hard when you take a third of a companies worldwide production of one thing
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[16:06:13] <Jymmm> archivist: You worked for Canon or ???
[16:06:37] <archivist> a two bit company that got lucky with a printer for a while
[16:07:14] <Jymmm> ah
[16:07:51] <archivist> we were selling canons A1210/PJ1080 into UK education
[16:08:18] <Jymmm> Hmmm, I just FELT an aircraft. I dont thik thats a good thing in the forest at 3000ft elevation.
[16:08:21] <archivist> but with our name on
[16:08:30] <irontree9> okay dumb question. I am trying to calibrate this thing and I got the measurements correct. However what would cause a stepper motor to lock up when the feed is increased.
[16:08:32] <Jymmm> ah rebranding.
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[16:08:48] <archivist> we changed the ROM and made it do more
[16:08:49] <Jymmm> irontree9: That's called stalling
[16:09:02] <irontree9> ah
[16:09:08] <archivist> back off a bit
[16:09:09] <Jymmm> It's a trait of ALL stepper motors.
[16:09:23] <archivist> never accelerate too fast
[16:09:52] <Jymmm> There are some drivers that can prevent it though.
[16:10:11] <archivist> reduce, not prevent
[16:10:17] <irontree9> yeah I keep turning it down, got it at 8mm/min
[16:10:24] <Jymmm> irontree9: http://www.geckodrive.com/support/step-motor-basics.html
[16:10:34] <irontree9> thanks
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[16:51:42] <pcw_home> ssi: 7I77s are available
[16:52:17] <gregcnc> That's great! How long will it take to get through shipping backlog?
[16:52:42] <pcw_home> still about 3-4 weeks
[16:53:16] <ssi> good
[16:53:25] <ssi> I have a couple on hand but I think I have fewer than I have machines that need them :P
[16:55:07] <pcw_home> 7I76s are available also but I wont put them on the store yet at least until we have a chance to catch up
[16:56:02] <gregcnc> if ordered 3 -4weeks ago?
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[16:59:59] <pcw_home> if you did it will likely go out this week
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[17:39:37] <archivist> what does rb stand for as a wire colour in german?
[17:39:52] <archivist> I think is is pink....
[17:39:56] <archivist> it is
[17:40:28] <archivist> just decoding a label off an ebay encoder http://www.archivist.info/cnc/screw_error/AMI_encoder.php
[17:41:19] <MrSunshine> gah i want a concrete floor foundation for my cnc :(
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[17:45:10] <Magnifikus> https://www.dropbox.com/s/wcfmju9mo33mzpp/2015-12-15%2018.44.22.jpg?dl=0
[17:45:19] <Magnifikus> milled me a monitor holder :D
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[17:45:44] <Loetmichel2> archivist: i would say red with blue stripes
[17:45:49] <Loetmichel2> Rotblau
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[17:46:32] <archivist> but there is no red blue :)
[17:46:49] <Loetmichel2> then the rb is simply wrong
[17:47:03] <Loetmichel2> there is no single colour with the R and B in them in german
[17:47:15] <vexation> lol maybe rosafarben, though would be silly to use the b
[17:48:00] <archivist> that is the one part of the label with a scratch :(
[17:48:08] <archivist> rs?
[17:48:13] <vexation> would make sense
[17:48:17] <Loetmichel2> rs would fit
[17:48:24] <Loetmichel2> for "rosa" = Pink
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[17:50:26] <archivist> under the microscope I can just about be sure of rs
[17:51:35] <archivist> web page updated, I might dare to power it up now
[17:52:23] <archivist> My complaints to the makers though for a crappy website with little data
[17:54:49] <duc> pcw_home: where you able to look up the status of order 1706 from a few weeks ago
[17:55:23] <archivist> I found the brochure some time ago http://www.collection.archivist.info/archive/mirror/AMI/
[17:57:37] <vexation> Yeah brochure is an apt name for that.. bit shy of a datasheet
[17:58:34] <archivist> I get the impression of no standard versions
[17:59:27] <zeeshan|2> man i know this much
[17:59:29] <zeeshan|2> whatever company i work at
[17:59:33] <zeeshan|2> 7i77 needs to be implemented
[17:59:36] <zeeshan|2> =D
[18:01:56] <ssi> wat
[18:02:05] <zeeshan|2> i went to this awesome place today for an interview
[18:02:11] <zeeshan|2> theyre a huge automation company
[18:03:09] <zeeshan|2> lots of allen bradley control
[18:03:12] <zeeshan|2> and bechoff
[18:03:16] <zeeshan|2> i like the bechoff hmi
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[18:05:02] <ssi> zeeshan|2: I guess I need to start building another control for this new mill :/
[18:05:06] <ssi> I don't think the other one is going to turn up
[18:05:09] <zeeshan|2> doh
[18:05:18] <zeeshan|2> what are you missinmg
[18:05:24] <ssi> drives and a 7i77
[18:05:32] <ssi> and the mating cannon plugs for the motor and power lines
[18:05:38] <ssi> and an enclosure
[18:05:41] <ssi> couple relays
[18:05:44] <zeeshan|2> $$
[18:05:48] <ssi> yeah.
[18:05:59] <ssi> I don't remember what the servo voltage is on it
[18:06:02] <ssi> probably 190v
[18:06:14] <zeeshan|2> brushless?
[18:06:18] <ssi> brushed
[18:06:22] <ssi> I think
[18:06:25] <ssi> again, it's been awhile :)
[18:06:35] <ssi> I'm pretty sure I used BE25A20 drives in the first one
[18:06:58] <ssi> https://scontent-atl3-1.xx.fbcdn.net/hphotos-xfl1/t31.0-8/459136_10100131793367542_829866394_o.jpg
[18:07:08] <ssi> but yea there's only one phase hooked up
[18:07:11] <ssi> so they must be brush motors
[18:07:33] <ssi> dammit I did such a good job on that control, it really irks me that it's missing :(
[18:08:05] <gregcnc> how'd you lose that?
[18:08:26] <ssi> I built it for a company, teh company went under and gave it to an electrical contractor that they couldn't pay, and he sold it to me
[18:08:35] <ssi> the whole mill, that is
[18:08:42] <ssi> somewhere in there, the control got lost
[18:08:57] <ssi> the folks at the company swear it was with the mill when the contractor picked it up, and gone after he took it
[18:09:02] <ssi> he swears he never had it
[18:09:15] <ssi> I swear I don't want to have to rebuild it :(
[18:09:24] <ssi> https://scontent-atl3-1.xx.fbcdn.net/hphotos-xaf1/v/t1.0-9/262501_10100133915824122_1848380283_n.jpg?oh=c0dc12e1f1da08e9ae4a730fdb17fe44&oe=571CAE7A
[18:09:30] <ssi> that's what it looked like installed in their shop
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[18:09:51] <ssi> I got the computer and the arm with teh monitor and that bit of unistrut that was attached to the wall
[18:09:56] <ssi> but not the nema box itself
[18:10:06] <archivist> send the boys in to collect
[18:10:21] <ssi> srsly
[18:11:08] <ssi> I wish I could read the stickers on the edge of those drives in the pic
[18:11:17] <ssi> pretty sure it's BE25A20E tho
[18:13:02] <ssi> pcw_home: is there a 7i77e yet?
[18:13:47] <gregcnc> looks like bx25A20E, no encoder input
[18:14:12] <ssi> hey good catch
[18:14:19] <ssi> I've got it wired for tachs don't I
[18:15:02] <ssi> 30A8s are very plentiful but I'm pretty sure that those motors are well over 80V or I would have used the 30A8s
[18:15:06] <ssi> I had some on hand when I built that control
[18:16:00] <gregcnc> oops I think it reads BX15A20, that would make them 15A, 40-190V?
[18:16:20] <ssi> yeah
[18:16:25] <ssi> and the current is less critical than the voltage
[18:16:41] <ssi> most of those drives are way higher current rating than I need
[18:16:51] <ssi> but AMC as a rule makes 80V drives, 200V drives, and 400V drives
[18:17:12] <ssi> and I'll have to look but I bet those are 190V servos
[18:17:20] <ssi> 190v is 120vac rectified and filtered
[18:17:30] <ssi> and that's likely what the power supply in teh power cabinet is
[18:18:05] <ssi> I have five or six BE25A20AC drives on hand
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[18:22:24] <maxcnc> hey all
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[18:22:53] <gregcnc> I hope to be messing around with some AMC drives when the 7i77 comes, I have several to choose now. something should work.
[18:23:33] <maxcnc> most will work fine its a perfect BOB for the amc
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[18:26:26] <ssi> yes, I've had great luck with amc drives and mesa servo interfaces
[18:27:35] <maxcnc> did pcw_home mamage his isllness and is back at work ?
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[18:59:19] <maxcnc> if some starwors fans are here today is the german Startrek Xmas party its live on the net
[18:59:27] <maxcnc> http://143.93.17.81/weihnachtsvorlesung/
[18:59:30] <zeeshan|2> STAR WARSSSSSSSSSs
[19:00:54] <maxcnc> thee is troubel now with the conversion from klingon to federation technic towards the beamer ;-)
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[19:15:33] <Tom_itx> zeeshan|2 was that one pdf ok? i wasn't able to open it online here
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[19:21:49] <ssi> blahhh
[19:21:59] <anomynous_> what is the process of making chips called?
[19:22:38] <anomynous_> cutting? ;D
[19:22:54] <jdh> potato slicing
[19:22:57] <Tom_itx> grinding, machining, hacking, sawing etc
[19:23:17] <ssi> grinding doesn't make chips :D
[19:23:28] <ssi> neither does sawing really
[19:23:33] <ssi> although it's sort of a spectrum I guess
[19:23:54] <anomynous_> im looking for a specific book on sandvik site and i cant find it ;D I have it printed, but i cant find it in english
[19:23:57] <Tom_itx> what's that crap all over my shop floor by the grinder then?
[19:24:02] <ssi> dust
[19:27:45] <gregcnc> Title doesn't turn it up ont he sandvik site?
[19:30:59] <anomynous_> no i cant find it. Lastuavat työkalut , Techical handbook . It has a picture of a part with indexable drill, boring head, grooving thing, threading thing, indexable mill, boring bar and od turn operation.
[19:31:26] <anomynous_> technical handbook = tekninen käsikirja
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[19:33:25] <anomynous_> lastuavat työkalut = cutting tools
[19:33:37] <CaptHindsight> dust <100um avg dia, chips >100um dia
[19:34:01] <CaptHindsight> dust/powder
[19:34:46] <CaptHindsight> flakes would have to be more flatter than more round
[19:35:17] <CaptHindsight> do chips have a defined shape?
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[19:38:48] <anomynous_> https://www.anony.ws/i/2015/12/15/IMG_0736.jpg
[19:38:52] <anomynous_> like so
[19:38:56] <CaptHindsight> are all chips swarf, but not all swarf are chips?
[19:39:02] <anomynous_> where can i find that online?
[19:40:18] <anomynous_> CaptHindsight, all chips may be swarf if you only have grinding machines? :D
[19:40:35] <anomynous_> implies your chips.
[19:40:37] <CaptHindsight> chip, swarf or shaving? https://c2.staticflickr.com/4/3043/2964262410_458ed13e77_b.jpg
[19:40:44] <gregcnc> http://sandvik.ecbook.se/SE/us-en/Training_Handbook/
[19:41:22] <anomynous_> gregcnc, so its that
[19:41:29] <anomynous_> thanks... i saw it but i thought its different
[19:41:30] <gregcnc> Not sure is it?
[19:42:05] <anomynous_> didnt check it
[19:43:20] <anomynous_> its the same
[19:50:05] <ssi> leaks, drips, seeps, streaks, stains
[19:50:47] <gregcnc> interesting book. i was hoping it would have more details about specific cutting force.
[19:51:43] <anomynous_> i think you can determine it somehow... ;D
[19:57:00] <gregcnc> "all cutting data is based on 15 min tool life"
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[20:16:21] <anomynous_> CaptHindsight, its machinist's serpentine
[20:16:31] <anomynous_> just don't cut your fingers
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[20:17:50] <anomynous_> a guy told he cut a tendon by pulling a long jammed chip like that.
[20:26:03] <anomynous_> you might also call it jenkalastu
[20:26:25] <anomynous_> thread chip or something
[20:26:26] <anomynous_> :D
[20:27:52] <anomynous_> guess im going to sleep then
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[21:29:44] <ssi> zeeshan|2: you around?
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[21:53:18] <zeeshan|2> now i am
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[21:56:05] <ssi> well then
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[22:00:10] <jdh> did I mention that driving near atlanta vefor thanksgiving really sucks?
[22:00:19] <ssi> sucks after thanksgiving too
[22:00:23] <ssi> and before christmas
[22:00:27] <ssi> and pretty much every other time of the year
[22:00:31] <JT-Shop> http://gnipsel.com/images/shop/Siding14.jpg
[22:00:35] <ssi> I'm sitting at work dreading going home :'(
[22:00:38] <JT-Shop> http://gnipsel.com/images/shop/Siding15.jpg
[22:01:07] <jdh> we drove through friday night. not bad.
[22:01:09] <XXCoder> ssi: my old job it was bad on fridays. normal days, around 30 min drive. Fridays? can he hour and half
[22:01:19] <ssi> yeah... see
[22:01:31] <ssi> rush hour in atlanta starts at 2:30 and ends at 7:30
[22:01:39] <ssi> except on fridays, when it starts sometime thursday around lunchtime
[22:01:59] <JT-Shop> lol
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[22:02:12] <ssi> I wish I was kidding :(
[22:02:12] <ssi> http://www.511ga.org/#Variable_Speed_control&zoom=4&lat=4008646.58026&lon=-9389299.5127
[22:02:50] <jdh> move!
[22:02:56] <ssi> where?
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[22:03:06] <jdh> good point
[22:03:18] <XXCoder> ssi: doubt possible work at home on friday? heh
[22:03:28] <DaViruz> rush hour is when i see more than five cars on the way home from work
[22:03:28] <jdh> 40 more miles of .ga and I'll be in FL
[22:03:35] <XXCoder> thankfully my current work don't have friday, and finisges at 1:45 am besides.
[22:07:51] <Deejay> gn8
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[22:37:25] <Valduare> hows it going everyone
[22:38:42] <irontree9> Just fine tunning my new machine :)
[22:39:11] <Valduare> wish I had one :)
[22:39:16] <Valduare> any pics?
[22:39:54] <irontree9> https://www.facebook.com/video.php?v=1045012402205144&pnref=story
[22:39:57] <irontree9> a video
[22:41:44] <Valduare> very fun
[22:42:10] <Valduare> is it much of an issue having a heavy head on these cnc machines
[22:42:26] <Valduare> wonder why you dont see more flex shaft power heads?
[22:42:41] <SpeedEvil> because flex shafts are shit
[22:42:57] <irontree9> ditto
[22:43:22] <Valduare> too much friction/heat?
[22:44:05] <SpeedEvil> they have terrible life, poor power transmission without being destroyed, lots of 'whip'
[22:44:35] <Valduare> how about pneumatic die grinders?
[22:44:53] <Valduare> (if you have a humongous compressor)
[22:45:38] <irontree9> I have a POS compressor
[22:46:43] <Valduare> heh http://aimlab.wpi.edu/includes/research/prism_motor.jpg here’s x,y,z pneumatic stepper motors
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[22:48:34] <irontree9> How about steam turbine? :)
[22:50:32] <Valduare> punch card g-code would be fun to keep track of lol
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[22:53:42] <Valduare> 3d printer guys hang out in here too?
[22:54:31] <tiwake> several
[22:55:24] <tiwake> Valduare: pretty sure something of everything hangs out here
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[23:18:53] <JT-Shop> lol there was something tan floating in my glass of red... wine soaked pistachios are pretty good
[23:20:32] <toastyde1th> gregcnc, the whole point of a roughing endmill is that the chip load is not calculated by feed per rev/number of teeth
[23:21:47] <toastyde1th> the teeth on the mill are (on a high quality roughing endmill) positioned so that each tooth is the only cutting surface on the mill
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[23:22:17] <toastyde1th> so that if you have .015" of feed per revolution on a 3 flute endmill, rather than having .005" per tooth, each tooth actually cuts the full .015"
[23:22:57] <toastyde1th> this is done for two reasons - the major reason is that larger chips require less power as the chip size grows (up to a limit)
[23:23:36] <toastyde1th> the other reason is that the chip load per tooth, and the cutting length of the endmill, are part of the gain/damping terms for chatter
[23:23:58] <toastyde1th> and both improve in a helpful way when using a roughing/toothed cutting tool
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[23:30:54] <gregcnc> right, I got the impression from reading that greater depth of cut was more efficient in terms of specific cutting power. But feed rate is still whatever the book says.
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[23:34:41] <toastyde1th> if you're measuring feed in IPM, yes
[23:34:51] <gregcnc> toastyde1th we could assume a 3 flute cutter would have only 33% of each flute cutting, but most have at least 50% and most carbide roughers much more.
[23:35:25] <toastyde1th> there are a wide range of types of roughers, so the 33% is for high quality, pure roughing endmills only
[23:35:41] <gregcnc> I've never seen one like that
[23:35:43] <toastyde1th> also ground so that they don't pull the hell out of the holder, which is another thing poor quality cutters do
[23:36:27] <gregcnc> I think some of it also come from chip thinning due to the angled cut at each tooth
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[23:37:30] <toastyde1th> definitely
[23:41:14] <FloppyDisk> @toastyde1th I know minimal when it comes to cutters, roughing or not. Do you have a recommendation for a roughing cutter for aluminum where I have a bridge port and
[23:41:18] <FloppyDisk> not much coolant flowing?
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[23:42:21] <toastyde1th> unfortunately not, I am really really bad with brand names and whatnot. but for what you described i'd recommend the following type of cutter in general, which any semi-reputable company should have:
[23:43:08] <toastyde1th> 3/4 inch diameter, 3 flute, with a non-cobalt/non-high-temp full roughing (the teeth do not have flat tips, they're round) endmill
[23:43:42] <CaptHindsight> maybe something from Shars, cheap and good for roughing
[23:43:42] <toastyde1th> you don't really need coolant on a roughing endmill, you turn them very slowly and try to maximize feed rate instead
[23:44:11] <FloppyDisk> Thanks - will make a note and look for one.
[23:44:18] <toastyde1th> any kind of cutting lube will help, doesn't have to be flowing. Kerosene and disel work well for aluminum.
[23:44:26] <toastyde1th> brush it on and walk away
[23:44:55] <gregcnc> lamp oil if you don't want it to smell
[23:45:13] <toastyde1th> if you have the budget, you want to hold the endmill in an *end mill holder*, not a collet
[23:45:16] <CaptHindsight> http://www.shars.com/products/cutting/end-mills?cutting_diameter=3%2F4&end_mill_category=Roughers
[23:46:22] <toastyde1th> on CaptHindsight's link, go for the M2 (M2AL) endmills
[23:46:26] <toastyde1th> not carbide or cobalt hss
[23:46:33] <CaptHindsight> only $13.75 (or less on ebay) http://www.shars.com/products/cutting/end-mills/3-4-x-5-8-m2al-4-flute-roughing-end-mill
[23:47:11] <FloppyDisk> ohhhhh... The first ones I saw were not $13.75 on the shars link. Thank you!
[23:47:24] <CaptHindsight> I got most of mine through giant lots on ebay
[23:47:42] <toastyde1th> also, get the full diameter shank ones.
[23:47:45] <toastyde1th> not step down
[23:48:00] <FloppyDisk> I've bought some on Ebay as well, but I did't know what needed and have a few cutters (not roughing) that I might not use...
[23:48:17] <toastyde1th> though you probably won't come across a rougher with a narrow shank in 3/4"
[23:49:05] <FloppyDisk> Sounds good - I have some tool holders (not collets) and will use those. Wouldn't have thought that, but I see your point on cutting forces.
[23:49:33] <toastyde1th> if you find you don't have the right holder, http://www.shars.com/products/toolholding-workholding/tool-holders?bore_diameter=3%2F4&shank_size=R8&toolholder_category=End+Mill+Holder
[23:50:10] <toastyde1th> r8 is not strong enough to resist the tension on the cutter using just collets
[23:50:14] <FloppyDisk> Oh my, that's a good price for a R8. I have NTMB30's...
[23:50:28] <toastyde1th> oh, sry - i just assumed you had an r8 spindle
[23:50:33] <CaptHindsight> and most of them are cut properly :)
[23:50:54] <CaptHindsight> I got one that was off center
[23:51:08] <CaptHindsight> for me they are a short drive for returns
[23:51:10] <gregcnc> probably that 1/1,000,000 right?
[23:51:15] <FloppyDisk> No worries - I appreciate you looking. There's so much out there that impossible to find it all.
[23:52:29] <gregcnc> capthindsight, where about IL are you? I'm in Crystal Lake
[23:53:36] <CaptHindsight> I have a lab just north of you in an underground bunker
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[23:54:21] <toastyde1th> also, it may sound dumb? but facemills.
[23:54:39] <toastyde1th> bridgeports do pretty well with 2" and 3" facemills
[23:55:17] <toastyde1th> if you have some ebay patience, you can find older, HSS inserted facemills and resharpen them yourself on a bench grinder
[23:55:53] <CaptHindsight> http://www.use-enco.com/CGI/INLMK32?PARTPG=INSRAR2
[23:56:04] <toastyde1th> 404