#linuxcnc | Logs for 2013-04-14

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[02:16:38] <DJ9DJ> moin
[03:16:49] <Loetmichel> mornin'
[04:46:33] * mr_new is searching for a solution, how to make a H-Bridge controllable with just PWM and dir
[04:47:04] <mr_new> could it work with a MUX for selecting which site of the bridge has the pwm signal?
[04:51:17] <Loetmichel> mr_new: you could use a 50% PWM signal alone
[04:51:47] <Loetmichel> works only with big motors with high induction but there it works great
[04:52:08] <Loetmichel> simply invert the PWM to one side of the bridge
[04:52:26] <Loetmichel> and rely on the inductance to canel out the torque for 50% PWM
[04:52:58] <Loetmichel> lower than 50% PWM: motor turns one direction, higher than 50% motor turns the other direction
[04:53:41] <Loetmichel> exactly 50% pwm: motor gets alternating + and - (exactly the same) power and stays whre it is.
[04:53:55] <Loetmichel> so you even omit the dir signal ;-)
[08:34:14] <L84Supper> has anyone seen a far-IR (>2um) laser diode array/bar?
[09:03:41] <L84Supper> sorry actually mid-IR, 2-6um
[09:40:25] <sadara> L84Supper: how far?
[09:41:41] <sadara> L84Supper: the longest I've seen is about 3um
[09:51:45] <L84Supper> 2940nm is the sweet spot but anything 2-6um works well
[09:52:41] <L84Supper> using it to heat water to make steam
[09:53:07] <L84Supper> only on the microscale
[09:57:47] <L84Supper> another option is to make water water absorb much more 600-1200nm
[09:58:51] <L84Supper> using black dye or similar
[12:30:31] <IchGuckLive> hi all B)
[13:52:33] <gammax> anyone attach encoders to steppers for exact resolution?
[13:58:29] <archivist> gammax, http://www.linuxcnc.org/index.php/english/forum/27-driver-boards/16030-encoder-support-in-stepper-systems
[14:01:19] <gammax> thanks
[14:03:57] <gammax> one last question i have is, If using steppers can I use one of the regular chinese type break out boards instead of a persay.. mesa?
[14:05:08] <Jymmm> http://11foot8.com/
[14:08:14] <gammax> Jymmm, thats rediculous! lol
[14:36:49] <pfred1> the ceiling in my garage is almost that high
[14:52:18] <AR_> lol Jymmm
[14:54:01] <pfred1> they let the air out of truck tires to get them out from under bridges
[14:54:17] <pfred1> the couple of inches makes the difference
[15:07:06] <Loetmichel> pfred1: hail to air suspension ;-) *press of a button* *PFFFFFFFFT* -> truck 15cm down ;-)
[15:08:06] <pfred1> they just need to build trucks strong enoug hthey can take down bridges
[15:08:28] <pfred1> there silly railad company I fixed ot for ya
[15:08:37] <pfred1> railroad even
[15:45:05] <gammax> anyone know the proper way to get the exact measurements from a center hole to center hole?
[15:48:05] <ReadError> i think they make little cone shape things that go on calipers..
[15:48:15] <ReadError> but the only way i did it was take the inside, then outside
[15:48:19] <ReadError> and do math on it
[15:54:02] <Loetmichel> thats the way it goes ;-)
[15:55:06] <Tom_itx> if they're the same size you can measure a hole and zero the calipers then measure between
[15:55:17] <Tom_itx> if they're different size that won't work
[15:55:21] <ReadError> wow thats a slick idea
[15:55:27] <ReadError> ;)
[15:57:23] <Tom_itx> just don't forget to reset the calipers afterward or your part will be screwed up somewhere else
[16:04:08] <mrsun> http://sphotos-g.ak.fbcdn.net/hphotos-ak-ash3/528252_10151537362143648_1115926893_n.jpg http://sphotos-d.ak.fbcdn.net/hphotos-ak-snc6/165475_10151537362278648_1840461716_n.jpg my machine is taking shape! =)
[16:04:16] <mrsun> first is a picture of my homemade machine feet :P
[16:04:40] <L84Supper> whatcha makin?
[16:04:48] <mrsun> router machine
[16:05:17] <L84Supper> every garage should have a purple motorcycle :)
[16:05:27] <mrsun> haha =)
[16:05:36] <L84Supper> what is that?
[16:05:51] <L84Supper> make, year?
[16:06:33] <mrsun> dont know
[16:06:34] * Loetmichel has only a brown one ;-)
[16:06:35] <mrsun> my fathers machine
[16:06:44] <mrsun> old thingie =)
[16:06:56] <Loetmichel> and its more of a "fake"
[16:06:57] <mrsun> been standing there for the better of like 30 years :P
[16:07:09] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=13465
[16:07:12] <L84Supper> I can't make out what make of bike it is, was guessing 50's or earlier
[16:07:19] <Loetmichel> ... 50ccm 50kmh ;-)
[16:10:05] <L84Supper> Italian Chopper
[16:10:16] <Loetmichel> hrhr, right
[16:10:56] <Loetmichel> but useful for the commute (at summertime) so i save some diesel
[16:11:14] <L84Supper> what do you have to do to get a motorcycle drivers license there?
[16:11:42] <Loetmichel> the car uses abput 9l/100km diesel, the bike more like 3l/100k unleaded
[16:12:17] <Loetmichel> nothing: the 50ccm bikes are in the car drivers license includes
[16:12:20] <Loetmichel> -s+d
[16:13:03] <DJ9DJ> gn8
[16:13:16] <Loetmichel> but if the bike gets bigger: about 20 hrs theory school, 20 hrs practical school (including night and autobahn) and all in all 2000 eur cost ;-)
[16:15:18] <L84Supper> you just have to pass the test here, ride in a circle, figure 8, stop in a turn, follow a straight line
[16:16:09] <Loetmichel> i knw
[16:16:15] <Loetmichel> cars the same
[16:17:07] <L84Supper> I like that they require you to actually take some lessons and have to show competence
[16:17:28] <andypugh> Bah! Missed gammax. But ReadError, this is how I measure hole or stud centres. With a digital caliper measure one hole or stud. Zero the caliper at that measurement, then measure over both. Let the caliper do the maths.
[16:17:29] <Loetmichel> thats the reason the sister of a friend of mine died in an accident few weeks after combin back from a "study abroad" in usa
[16:17:45] <L84Supper> I think the test for cars here is be able to reach the pedals and still be breathing
[16:17:52] <Loetmichel> hrhr
[16:17:55] <ReadError> andypugh, yea i just learned that ;)
[16:17:58] <ReadError> excellent trick
[16:18:01] <ReadError> much better than math
[16:18:21] <andypugh> Eek! http://www.instructables.com/id/ThinkSafe%3a-A-Magnetic-Power-Connector-for-Thinkpad/
[16:18:33] <Loetmichel> L84Supper: in germany the autobahns are not speed limited (some) ... so better know how to drive
[16:19:02] <Loetmichel> especially when driving "papas" audi :-(
[16:19:43] <L84Supper> Loetmichel: do cars have to pass safety inspections every few years?
[16:20:01] <Loetmichel> every 2 years
[16:20:58] <Loetmichel> and they want to change that to 3 years for new cars, then yearly
[16:21:06] <L84Supper> Loetmichel: you can drive cars here with *ventilation* holes from oxidation where you can see into the trunk or passenger compartment
[16:21:32] <Loetmichel> i know... and fear it ;-)
[16:21:54] <Loetmichel> <- had some moments whre i had to rely on the ABS
[16:22:06] <andypugh> I had a car when I was working in the US (cook on a girls' summer camp) and you could lose 3l coke bottles through the holes in the boot floor.
[16:22:17] <Loetmichel> ... when you drive 200++kph and some idiot pulls out wit 90kph...
[16:23:12] <Loetmichel> ... you make black "dotted" stripes on the tarmac...
[16:23:27] <andypugh> I think i prefer my homebrew magsafe (for the probe head): https://plus.google.com/photos/108164504656404380542/albums/5747722155741347649/5866812269989148114?banner=pwa and https://plus.google.com/photos/108164504656404380542/albums/5747722155741347649/5866812284499794850?banner=pwa
[16:23:33] <Loetmichel> ... and need fresh underwear ;-)
[16:24:35] <Loetmichel> andypugh: wont work with modern laptops: 3rd pin vor onewire-datachip in the PSU
[16:24:54] <andypugh> It's not for a laptop.
[16:27:31] <andypugh> It's for a touch probe, designed to break away cleanly if the spindle is accidentally started.
[16:31:44] <Loetmichel> ah, nice
[16:33:53] <gammax> anyone know any good online cnc training courses that will train cad and or cam
[16:34:46] <andypugh> Ah, gammax, did you see how to measure hole centres with a digital caliper?
[16:35:12] <gammax> I did not actually. I got kicked off...
[16:35:17] <andypugh> this is how I measure hole or stud centres. With a digital caliper measure one hole or stud. Zero the caliper at that measurement, then measure over both. Let the caliper do the maths.
[16:36:18] <Loetmichel> gammax: not kicked, just a bed internet connection: [22:36] * gammax (~Rob@unaffiliated/gammax) Quit (Ping timeout: 258 seconds)
[16:36:18] <gammax> thats how you get the exact measurement? Seems like too much room for error...
[16:36:37] <gammax> Loetmichel, thats what I meant :)
[16:36:49] <Loetmichel> s/bed/bad
[16:37:45] <andypugh> gammax: How exact do you want? It should be good to twice the uncertainly in the caliper reading. It does assume that both holes are the same size.
[16:40:20] <pfred1> is there anything Mothers wax can't trick out?
[16:40:38] <gammax> I guess that is good enough... just wanted to know if there was a more precise way...
[16:40:41] <gammax> thanks!
[16:41:00] <pfred1> I bought an old hole saw kit today and polished them with wax man they're sweet looking now
[16:41:47] <andypugh> gammax: Well, a coordinate measuring machine will tell you the answer more exactlty that you need.
[16:42:27] <andypugh> Or you could probe the machine on the bed of your milling machine with a touch-probe.
[16:42:50] <gammax> At this point the probe is too much trouble...
[16:43:03] <pfred1> that's what she said
[16:43:12] <gammax> ohhhh
[16:43:39] <andypugh> Once you measure the spacing you can probably make an educated guess at what the designer intended it to be.
[16:44:33] <gammax> unfortuanetly Im currently measuring chinese things...
[16:45:20] <gammax> so any thoughts on the online training courses?
[16:45:24] <pfred1> well find whatever they copied and measure that
[16:45:31] <gammax> lol
[16:46:24] <andypugh> Most CAD packages come bundled with tutorials specific to them. Which CAD package do you want to use
[16:46:26] <andypugh> ?
[16:47:10] <gammax> solidworks... although Im opening a business right now and i can get extra free money from unemployment if im attending a course where I CAN get a 2 year certificate.
[16:47:29] <andypugh> I had to go back to a model I made in Alibre yesterday. I have been using Autodesk Inventor for the last year or so. The differences in appraoch were really frustrating, and those two packages work in almost exactly the same way..
[16:47:33] <pfred1> free money?
[16:47:56] <gammax> 50% extra just to attend a course...
[16:48:36] <andypugh> Going to an actual physical course, with instructors, is the best idea.
[16:49:06] <gammax> I agree... although the cheaper the better this way.
[16:49:56] <pfred1> who wants to see my flea market goodies I got this weekend?
[16:55:12] <skunkworks> archivist: https://www.youtube.com/results?search_type=videos&search_query=emc2&search_sort=video_date_uploaded
[16:55:37] <Tom_itx> http://upload.wikimedia.org/wikipedia/commons/2/2a/VacRect2E.png
[16:55:53] <Tom_itx> dunno why that made me think of andy
[17:39:53] <andypugh> skunkworks: I wonder why they do that?
[17:41:42] <skunkworks> no clue. are they utilizing ads>
[17:41:44] <skunkworks> ?
[17:41:49] <skunkworks> (I didn't click on them)
[17:42:26] <skunkworks> but it seems they would pick higher bandwidth videos like justin beber :)
[17:58:19] <andypugh> If you run ads you get (I think) $1 per thousand views.
[17:58:45] <pfred1> on Youtube?
[17:58:47] <andypugh> Even my most popular one would only have netted me $88
[17:59:35] <pfred1> I heard they don't pay out til you reach $100 owed
[18:00:11] <UncleG> Good Day! Can someone forward me some information on how to properly control my axis (which controls a steel cam drum.) The drum controls a slide and I do not want the cam to go in reverse and after each full rotation reset the encoder to 0.000 for its next cycle. Basically I want to "home" the camafter each rotation. I cannot find documentation, any links?
[18:01:07] <andypugh> UncleG: Do you have an index pulse?
[18:01:21] <UncleG> z z/?
[18:01:26] <andypugh> Yes
[18:01:27] <UncleG> yes
[18:02:35] <UncleG> should I take my encoder away from the motor shaft reattache to cam shaft and then...." clever coding inserted here"
[18:02:38] <andypugh> There is an outmoded HAL component called "supply" http://www.linuxcnc.org/docs/html/man/man9/supply.9.html
[18:03:31] <andypugh> I think you can use that to keep the encoder "index-enable" always true, so that the encoder will always reset every index.
[18:03:49] <UncleG> sounds great, im learning bit by bit!
[18:04:17] <UncleG> how fitting, Im using an "Index-Werke" screw machine.
[18:06:07] <andypugh> Now, there is a complication, as index-enable is a bidirectional pin, and the output of "supply" is not. That means that you will also probably need a "tristate_bit" ( http://www.linuxcnc.org/docs/html/man/man9/tristate_bit.9.html ) component to convert the output of "supply" into a bidirectional pin.
[18:06:34] <UncleG> if you want to see, here it shows me having to completely run all my cross-slide tooling all the way around and backwards through every cam, instead of justcontinuing on
[18:07:35] <andypugh> Not knowing yout situation, it may be that all you actually need to do is define that axis as a "wrapped rotary" http://wiki.linuxcnc.org/cgi-bin/wiki.pl?WrappedRotaryAxes
[18:07:56] <UncleG> one last question, maybe instead of using encoder, my home switch is already attached at bottom of cams maybe use that?
[18:08:29] <UncleG> yeah, I thought that was the correct route, but I didnt get it proper..
[18:08:32] <andypugh> Maybe. There are almost too many ways to approach this.
[18:09:28] <andypugh> Maybe just linking index-enable through a "not" http://www.linuxcnc.org/docs/html/man/man9/not.9.html and then through the tristate to convert to bidirectional would work too.
[18:10:15] <UncleG> I will review this all and try to decide again which is best
[18:11:57] <UncleG> Im doing alright getting things together, my biggest issues are trying to make sense of the programming. Which is not my strong suit!
[18:12:45] <andypugh> HAL is not actually programming. Imagine it as a very odd sort of wiring, where signals can be combined and changed.
[18:14:22] <UncleG> well, if its a series of tubes and wires im gonna have a bad time.
[18:15:37] <andypugh> If you don't like programming or wiring or plumbing then you came to the wrong place :-)
[18:15:37] <pfred1> my debugging skills haven't been too swift lately judging by how long it has tanek me to repair a simple VOM
[18:16:12] <pfred1> andypugh you can not like an activity but enjoy an outcome
[18:16:31] <UncleG> my encoder was slipping for a week and I didnt realize it ;(
[18:16:57] <pfred1> I've been slipping for at least the last 10 years and I didn't realize it either
[18:17:11] <UncleG> *nods*
[18:17:27] <UncleG> I think pink floyd made a song about that
[18:18:55] <UncleG> So, why dont we all start an online community machine shop?
[18:19:21] <pfred1> because there are local hackerspaces?
[18:19:32] <UncleG> then we can quit our day jobs
[18:21:43] <UncleG> I say, we make mesa based linux ready cnc retrofit kits for educational centers and hobbyists.
[18:21:55] <UncleG> =D
[18:22:16] <pfred1> doesn't someone already do that?
[18:22:30] <andypugh> Smithy
[18:22:40] <UncleG> oh
[18:22:43] <UncleG> good, I wanna see
[18:24:22] <andypugh> Hmm, but I lije the idea of moving back to Yorkshire, and making machine tools in Calderdale again. (look at Lathes.co.uk, for the first half of the 20th Centrury half the machine tools in the world came out of Calderdale.
[18:25:00] <pfred1> andypugh you want to start your own industrial revolution do you?
[18:25:29] <andypugh> (Town and Woodhouse, Ormerod, Denford, Boxford, Harrison, many many more). Of course the last three still exist.
[18:25:42] <UncleG> oh that is a great place!
[18:26:00] <UncleG> there are some really great historical bits on that site
[18:26:03] <andypugh> I need to look at a map to see if Dean Smith and Grace count.
[18:27:25] <andypugh> I did want a Willson lathe, (made in Halifax) but perhaps I should go for a Brighouse-made one.
[18:28:08] <pfred1> andypugh I still can't believe you're giving up on your multimachine
[18:28:23] <UncleG> well you know pfred1 if we don't our children will be slaves
[18:28:51] <andypugh> (A geographical note, these are different towns, but they are contiguous, I doubt that there is 40 miles between DSG in Keighley and Boxford in Brighouse)
[18:29:07] <FinboySlick> UncleG: andypugh is going to save liberty with his new lathe?
[18:29:21] <UncleG> andy! you were designing a multimachine?
[18:29:30] <UncleG> I have plans for one as well! =D
[18:29:32] <pfred1> he has one
[18:29:39] <UncleG> pix please
[18:29:46] <andypugh> pfred1: I still use the mult-thing. But it's a bit rubbish and changing between modes is a chore.
[18:30:14] <pfred1> UncleG ancy has videos
[18:30:17] <pfred1> andy even
[18:30:30] <pfred1> show UncleG your gear cutting one
[18:30:47] <UncleG> *waits patiently*
[18:30:57] <pfred1> he narrates
[18:31:06] <UncleG> fantastic
[18:31:33] <andypugh> It is (I think) a cheap Indian knock-off of a cheap Chinese knock-off of an Emco: https://plus.google.com/photos/108164504656404380542/albums/5747722155741347649/5856099195071654466?banner=pwa
[18:31:48] <pfred1> aww come on where's the youtube videos?
[18:32:05] <pfred1> I might have you bookmarked I don't know
[18:32:36] <andypugh> http://www.youtube.com/watch?v=ZhICrb0Tbn4
[18:32:42] <Tecan> (ZhICrb0Tbn4) "Hobbing (Gear cutting) on a Mini-Mill with EMC2" by "andy pugh" is "Tech" - Length: 0:02:34
[18:33:14] <pfred1> ha this is it https://www.youtube.com/watch?v=ZhICrb0Tbn4&list=UUexvgsGz_QFvOublovDYoTQ&index=24
[18:33:59] * FinboySlick woahs at Andy's awesome british accent.
[18:34:17] <pfred1> yeah I could never go out drinking with Andy I'd fall off the bar stool
[18:35:49] <UncleG> really great :)
[18:35:56] <pfred1> yeah that is great
[18:35:56] <UncleG> I have a similar plan.
[18:36:06] <UncleG> for the hardinge dv-59
[18:37:21] <UncleG> tooling goes in spindle, material would be located on a multiaxis compound slide. so it would be either an automatic lathe/cnc combination horozontal machining center
[18:37:27] <andypugh> For extra fun, turn on the automatic subtitles, they are abosultely and competley hopeless.
[18:38:41] <andypugh> A much more competent setup, with a machine made in Yorkshire: http://youtu.be/ltmZrDrt6pQ
[18:38:42] <Tecan> (ltmZrDrt6pQ) "Pulley" by "andy pugh" is "Tech" - Length: 0:02:44
[18:39:09] <UncleG> also tooling pickoff to automatically, feed a part, pull part out of collet and place endmill in spindle and rework back side of part before taking the tool out of spindle and then loading another.
[18:39:11] <L84Supper> http://www.youtube.com/watch?v=IePjYfVV8OQ so this isn't English English?
[18:39:12] <Tecan> (IePjYfVV8OQ) "Austin powers" by "ryan hoversholm" is "Film" - Length: 0:00:37
[18:39:19] <UncleG> ooh more
[18:41:14] <UncleG> that looks like a very solid mill
[18:41:33] <pfred1> andypugh so you're hand feeding it?
[18:41:55] <andypugh> Yes, it is going to be the X-drive pulley.
[18:42:00] <UncleG> bar loader
[18:42:06] <UncleG> oh
[18:42:08] <UncleG> pugh
[18:47:59] <andypugh> L84Supper: No, that is London English. I ought to talk like this, but I have been in the South too long.
[18:48:02] <andypugh> http://youtu.be/ScELaXMCVis
[18:48:08] <Tecan> (ScELaXMCVis) "Yorkshire Dialect" by "Guitcad1" is "Education" - Length: 0:02:14
[18:52:55] <UncleG> Ive got a couple barloaders with some free cutting time, if you guys or your friends need a range of 1000-10,000 of something turned, get my contact info Id like to give back to the community somehow. Cover shipping and material. Same thing if you guys need some material I have thousands of 3-4 inch long, 1 inch heagon bar ends, absolutely no use except scrap cost for the,
[18:52:59] <UncleG> them*
[18:53:14] <andypugh> In my second vidoe, the camera was mounted on a gorillapod grippping the original HoVo light fitting. Being long and wobbly and mounted to the machine, it wasn't a great choice. :-)
[18:54:24] <andypugh> UncleG: Which continent?
[18:54:30] <UncleG> Indiana, USa
[18:54:35] <UncleG> :P
[18:55:29] <andypugh> You could put the bar ends on eBay. $5 each, better than nothing.
[18:55:38] <UncleG> barends free to pick up! for anyone who needs em.
[18:55:49] <L84Supper> UncleG: what part of Indiana?
[18:55:51] <UncleG> yeah I have a guy right now planning on putting a package together
[18:55:55] <UncleG> fort wayne area
[18:56:26] <L84Supper> I'm ~2hrs away
[18:56:47] <UncleG> Well so long as you put them to good use and not just turn them in for scrap cash you are welcome to have some.
[18:57:10] <L84Supper> all hexagon steel?
[18:57:12] <UncleG> they are 1215 I think
[18:57:22] <UncleG> yeah I some other stuff but I have THOUSANDS of those
[18:58:12] <UncleG> some 1 1/4 round but I donate that to my local highschool vocational center
[18:58:37] <UncleG> I have alot of 5/8 12L14 also
[18:58:41] <L84Supper> yeah, sounds like good practice material
[18:58:45] <UncleG> its leaded so you shouldnt weld on it.
[18:58:56] <UncleG> toxic fumes when you do.
[18:59:49] <UncleG> l84 do you want a 5 gallon bucket or something of stuff hex and 5/8 rnd?
[19:00:08] <L84Supper> if i head out that way
[19:00:59] <UncleG> 260-359-9237 just ask for Garrett and mention EMC chat room.
[19:01:07] <L84Supper> heh, OK
[19:01:43] <UncleG> I usually make partf from them but I just been too busy and they are literally filling up my shop.
[19:02:38] <UncleG> What machines are you into?
[19:03:22] <L84Supper> mostly additive manufacturing, so we put material vs cut :)
[19:03:33] <UncleG> nice
[19:03:54] <L84Supper> but we have to machine parts to make the machines, that will soon make the machines
[19:04:11] <UncleG> so plastic printing or what?
[19:04:19] <L84Supper> metal printing is probably the most complex
[19:04:32] <andypugh> eBay is where I buy all my material. Unless I really do have a use for a 3m length. I reckon you would find _grateful_ buyers on eBay. Make sure the postage makes it worth your while.
[19:05:16] <L84Supper> several different techs, SLA, SLA, GGG, etc
[19:05:27] <UncleG> I have a place in my hearts for the grateful!
[19:05:36] <andypugh> GGG? (I think I can guess two Gs)
[19:06:01] <L84Supper> yeah, if you need metal parts for some small project you end up having to pay extra for small cuts
[19:06:10] <L84Supper> glorified glue gun
[19:06:31] <andypugh> Yeah, I had "glue gun"
[19:07:28] <L84Supper> <$100 at metal supermarkets or similar charges you ~$30 extra
[19:07:34] <UncleG> insane
[19:08:01] <andypugh> UncleG: Not really, there is a cost involved in handling small orders.
[19:08:35] <L84Supper> whenever I scrap something or throw it away, I generally need it about 3 weeks later :)
[19:09:22] <L84Supper> http://www.metalsupermarkets.com/ see what that bar would cost
[19:09:25] <andypugh> L84Supper: metal SLS, does any process make fully-dense parts, or do they still need to be flood-brazed?
[19:09:57] <UncleG> I think im just going to buy a hundred prepay shipping boxes fill them up with barends and get rid of them as quickly as possible. I just hate to see myself taking them to a scrapyard knowing some poor fella is paying 30$ for 3 barends.
[19:10:25] <andypugh> UncleG: Sounds good to me.
[19:10:32] <gammax> Can I please request what everyone on here is using for cad/cam?
[19:10:56] <UncleG> I talked my buddy into setting up an ebay account to sell them on, we would split anything we make on em.
[19:11:06] <UncleG> pencil/paper
[19:12:02] <L84Supper> andypugh: some are fully dense, the trick is printing parts with a range of density
[19:12:07] <andypugh> I use Autodesk Inventor CAD (I get a free home license via work, and used to use it full time as my job, so nothing else makes sense) and I am using PyCAM for CAM, (and spotting ways to improve it)
[19:12:31] <L84Supper> andypugh: e-beam makes the most dense parts currently
[19:12:45] <Tom_itx> gammax, smartcam here
[19:13:01] <gammax> Tom_itx, what cad you using?
[19:13:10] <Tom_itx> it is cad cam
[19:13:16] <gammax> ahhh
[19:13:28] <gammax> theres so many i dont know which one to use...
[19:13:36] <PetefromTn> gammax: I have been using Sheetcam for some time now and I will be using Either bobcam or CamBam for 3d stuff depending on what I like better.....
[19:13:38] <Tom_itx> it's a commercial product
[19:13:48] <andypugh> I did a research project on electon-beam welding a while a ago. It's a brilliant process. Single-pass welds 1m thick with no filller.
[19:14:09] <PetefromTn> For Cad I use Draftsight
[19:14:46] <Tom_itx> i hear sheetcam is good for 2.5d stuff
[19:14:56] <UncleG> its sounds to me like they made a laser printer with weld instead of toner
[19:15:02] <UncleG> is that correct andy?
[19:15:15] <PetefromTn> Yes I really like it and have been able to make all sorts of stuff fairly easily and it is pretty inexpensive.
[19:15:41] <andypugh> Yeah, I like SheetCAM if what you have is a DXF (and if you set up you layers as Z-heights in the CAD, it works well)
[19:16:05] <L84Supper> UncleG: it's similar to a laser printer, only without the electrostatic drum
[19:16:17] <PetefromTn> Yes that is precisely how I use it. Makes it rather simple to do things and it does a decent job of tapping too...
[19:17:41] <andypugh> Did you get the "1m thick" part? I really do mean three of your yankee feet.
[19:18:10] * Tom_itx looks at his feet
[19:18:47] <andypugh> (not relevant to SLS, but an indication of how deep an electron beam can go)
[19:18:52] <L84Supper> https://www.youtube.com/watch?v=BZLGLzyMKn4
[19:19:03] <L84Supper> Direct Metal Laser Sintering (DMLS) Process
[19:19:46] <andypugh> Why no inert atmoshpere/vacuum?
[19:19:59] <L84Supper> depends on the metal
[19:20:30] <L84Supper> we even do copper without inert gas, just a secret sauce
[19:20:55] <andypugh> Lard?
[19:21:17] <L84Supper> low fat lard
[19:22:08] <andypugh> That would seem to leave 'vacuum"
[19:22:34] <L84Supper> no vacuum required
[19:22:38] <UncleG> its pretty common practice the high fat lard is actually really affordable to use a s a medium though
[19:22:40] <UncleG> see here
[19:22:42] <UncleG> http://www.necn.com/searchNECN/search/v/66713551/help-me-brian-driveway-markers.htm?q=help+me+brian
[19:22:46] <UncleG> wrong 1
[19:22:53] <UncleG> http://myshapelipo.com/
[19:22:55] <UncleG> there it is
[19:23:39] <FinboySlick> L84Supper: Don't get me started on low-fat stuff.
[19:23:43] <FinboySlick> ;)
[19:24:20] <pfred1> andypugh 1m is more than 3 feet
[19:24:47] <andypugh> pfred1: Depends on who's feet
[19:24:51] <L84Supper> yankee feet of english feet?
[19:24:57] <L84Supper> of/or
[19:25:04] <pfred1> andypugh why the foot that is 12 inches long of course
[19:27:57] <L84Supper> http://www.imakr.com/ World's Largest 3D Printing Retail Store to open in London on April 30th, 2013
[19:28:36] <andypugh> Would that be the _only_ 3D printing retail store?
[19:29:05] <andypugh> I can't even tell if they sell printers, or prints.
[19:29:43] <L84Supper> http://3dprintingindustry.com/2013/04/11/a-new-dedicated-3d-printing-retail-store-opening-in-london-next-month/
[19:30:00] <L84Supper> The new iMakr store will stock a large range of personal 3D Printers from major American, European and Asian manufacturers
[19:31:12] <andypugh> I guess I really ought to have at least an GGG. Many of my friends have them.
[19:32:11] <andypugh> I am just rather more interested in making traditional parts.
[19:32:12] <UncleG> Oh does anyone know, is there a way I can "call" a home command within a program?
[19:32:24] <andypugh> In G-code?
[19:32:31] <UncleG> so make a cut, home, make another cut, home
[19:32:55] <UncleG> yeah that would get me a quick fix until I figure out this wrapped rotary issue.
[19:33:01] <andypugh> When you say "home" what do you want to happen?
[19:33:23] <andypugh> You may want G10.
[19:33:32] <UncleG> I want the axis to turn till my home switch is activated then once 0.000 run again
[19:33:57] <cradek> no, you can't search for a home switch by issuing gcode
[19:34:19] <andypugh> You could use a custom M-code (M100) to call a bash script to send a home request via halui.
[19:34:27] <cradek> no, you sure couldn't
[19:34:37] <andypugh> No?
[19:34:43] <cradek> you can't home while a program's running!
[19:34:48] <JT-Shop> a probe move
[19:34:52] <UncleG> thats a sad thing
[19:34:57] <JT-Shop> to find it
[19:35:04] <cradek> what's the actual problem you're trying to solve? this is all crazy talk
[19:35:05] <andypugh> Well, apart from it not working, you could :-)
[19:35:34] <UncleG> this driving all the way back to the beginning of the cam is doubling my cycle time
[19:35:44] <andypugh> cradek: Agreed, I have no idea what he is trying to solve here.
[19:36:00] <cradek> then use wrapped rotary, or g92 or g10
[19:36:04] <UncleG> I have a cam system and need to 0.000 after each rotation
[19:36:13] <cradek> or poke the home button before you restart the program
[19:36:16] <andypugh> G10 sounds right
[19:36:31] <cradek> why do you need that?
[19:36:34] <UncleG> I tried and I end up with it just reversing
[19:36:48] <UncleG> its a cam machine
[19:36:56] <UncleG> the cams are not meant to be reversed
[19:37:03] <andypugh> It sounds like he has a cam-driven linear axis.
[19:37:10] <cradek> I don't know what that is
[19:37:16] <UncleG> Ill link you
[19:37:45] <UncleG> https://www.youtube.com/user/HuntingtonScrew/videos
[19:38:02] <UncleG> in the video you will see me reversing all the way backwards through the cross slide tooling
[19:38:25] <UncleG> instead, I need to just keep going in the same direction.
[19:38:35] <cradek> which video?
[19:38:40] <UncleG> any
[19:38:47] <UncleG> the first is just a close up
[19:39:26] <cradek> can you describe what's going on here? I'm not getting what you're talking about
[19:39:49] <UncleG> ok cross slide.
[19:39:57] <UncleG> works on a CAM
[19:39:58] <cradek> I don't see anything that looks like a rotary axis
[19:40:22] <UncleG> err you need to see a cam machine Ill find you a drawing
[19:41:39] <UncleG> http://en.wikipedia.org/wiki/File:Lead-sec.jpg
[19:42:06] <UncleG> imagine a motor attached to that cam shaft and the rise and fall of the cam produces a linear motion
[19:43:52] <Tom_itx> the old brittans i ran used cams for the crosslides
[19:44:26] <Tom_itx> tool slide too for that matter
[19:44:31] <Tom_itx> it was a drum cam though
[19:44:44] <UncleG> that is how my cross slides work, they use a roller and arm which follows a servo driven cam after the roller "falls" my tool is already out of the way and there is no need to revers the cam. yet I have no way to truly 0.000 the machine, it just backs up instead.
[19:44:53] <andypugh> I like the "Goth" coolant
[19:45:33] <cradek> ok, so you always want to move a certain rotary axis the same direction
[19:45:49] <cradek> wrapped rotary sounds good for this. you'd just always use the same sign
[19:45:50] <andypugh> I think you need to define the axes as rotary, but calibrate them in mm or inches, then set them to "wrapped"
[19:46:11] <UncleG> indeed. but then how do I get back to "0.000
[19:46:14] <cradek> you can only wrap A,B,C
[19:46:17] <UncleG> it just keeps adding up
[19:46:22] <cradek> g90 g0 a0
[19:46:27] <andypugh> cradek: That's a shame
[19:46:35] <UncleG> which after 1000 parts is quite painful
[19:46:39] <Tom_itx> what machine is that?
[19:46:51] <UncleG> index-werke
[19:46:55] <UncleG> b60
[19:47:11] <Tom_itx> all cam driven?
[19:48:02] <UncleG> yah
[19:48:05] <UncleG> front and rear
[19:48:17] <UncleG> all my actions are pneumatic though
[19:48:20] <Tom_itx> what about the tool slide?
[19:48:31] <UncleG> turret, bar feed, reversse, high/low
[19:48:33] <Tom_itx> the front drill slide
[19:48:46] <UncleG> the turret is on a servo as well
[19:49:00] <Tom_itx> reminds me sortof like the new brittans
[19:49:07] <Tom_itx> only they were pure mechanical
[19:49:14] <andypugh> OK chaps, need to sleep, work in the morning, you know.
[19:49:17] <UncleG> the rotation is pneumatically acted but mechanically driven via mechanical cam shaft in rear
[19:49:27] <UncleG> this one WAS purely mechanical
[19:49:33] <UncleG> till I got a hold of it :P
[19:49:48] <Tom_itx> the gridleys were 6 and 8 spindle
[19:49:56] <UncleG> I have two of those!
[19:49:59] <UncleG> Acmes
[19:50:03] <UncleG> 6 spindles
[19:50:09] <Tom_itx> yeah, i ran new brittan
[19:50:11] <UncleG> nice
[19:50:18] <UncleG> I have davenport too
[19:50:19] <Tom_itx> i think acme were older weren't they?
[19:50:29] <UncleG> yeah mine came over on the mayflower
[19:50:36] <Tom_itx> yeah the shop had a bunch of brown & sharp, davenport and newbrittans
[19:50:46] <Tom_itx> a room full of each
[19:50:49] <Tom_itx> 3 rooms
[19:51:00] <Tom_itx> probably 20 new brittans
[19:51:17] <UncleG> this is VERY similar to a brown and sharpe
[19:51:21] <Tom_itx> i ran 6 at a time
[19:51:24] <UncleG> yah
[19:51:26] <UncleG> crazy huh?>
[19:51:34] <Tom_itx> lots of bars per shift
[19:51:42] <UncleG> I just picked up and order for 1 millions pieces O.o
[19:51:51] <UncleG> million*
[19:52:03] <Tom_itx> that'll keep ya outta the bars for a while
[19:52:07] <UncleG> yeah
[19:52:21] <UncleG> luckily they are only 3/8
[19:52:32] <Tom_itx> these went up to 1.5" iirc
[19:52:39] <Tom_itx> maybe a bit larger
[19:52:50] <UncleG> probably switching to 20 foot bars
[19:52:59] <UncleG> 12 is just too short to reload that often
[19:53:04] <Tom_itx> yep
[19:53:20] <Tom_itx> some of mine would cycle thru every 20 min or so
[19:55:15] <L84Supper> http://www.kickstarter.com/projects/1340066560/velkess-energy-storage#
[19:55:25] <L84Supper> http://phys.org/news/2013-04-velkess-flywheel-flexible-energy-storage.html
[19:55:57] <Tom_itx> that does look a bit like a B&S
[19:56:17] <Tom_itx> the davenports always ran the tiny parts
[19:56:31] <Tom_itx> B&S the midrange parts and the new brittans the big ones
[19:56:42] <Tom_itx> lots of tubing on the B&S
[20:02:56] <UncleG> So cradek just applying wrapped rotary and defining it as a A,B,or C, and then it would be degrees now and not inches?
[20:03:29] <UncleG> or can inches be defined on a scale equivilent to the height of my cam (5 inches)
[20:05:34] <UncleG> Im bad @ irc do I need to use cradek or +cradek to alert?
[20:07:33] <PetefromTn> ..
[20:11:04] <skunkworks> PetefromTn: how did the weekend go?
[20:12:23] <Connor> skunkworks: We got allot done yesterday.. Not sure what he's done today. Got the Power Draw Bar working, Tool changer Ram working. Spindle working in both directions...
[20:13:06] <skunkworks> neat - sounds like there is a little noise that needs to be worked out?
[20:13:20] <Connor> yea.
[20:13:35] <Tom_itx> UncleG, the + is just status
[20:13:46] <Tom_itx> they got clout
[20:13:57] <gammax> anyone use solidworks/
[20:14:05] <Tom_itx> JT-Shop does
[20:14:29] <gammax> im debating on using that or not...
[20:14:53] <Connor> skunkworks: Pretty cool being able to work on a full sized VMC conversion..
[20:15:14] <UncleG> got photos/
[20:15:15] <UncleG> ?
[20:15:24] <Tom_itx> that would be a treat
[20:15:32] <Tom_itx> especially if it were mine
[20:15:38] <skunkworks> Connor: :) on the lookout for a conversion project now?
[20:15:52] <Connor> skunkworks: No place to put one. :(
[20:16:01] <Connor> I'll have to make do with my G0704.
[20:16:06] <UncleG> you can come convert my hardinge dsm-a =D
[20:16:10] <Connor> but, I know where one is If I need help. :)
[20:16:24] <gammax> Connor, I almost bought one of them... got a crazy good deal on a rf45 though!
[20:16:29] <UncleG> replacing the hydraulic turret with a gantry style servo
[20:17:00] <Connor> RF45 good machine.. beefer.. Again.. Size and money dictated my choice.
[20:17:13] <gammax> no problem with that!
[20:17:28] <gammax> im in the midst of adding linuxcnc to it right now.
[20:17:30] <L84Supper> we use solidworks
[20:17:30] <pfred1> Rong Fu!
[20:17:56] <gammax> L84Supper, how do you like it and what kind of training would you recomend on it?
[20:18:37] <Connor> PetefromTn: You do need to take some pictures and video of it now that we have all the axis working, spindle and power draw bar...
[20:18:44] <L84Supper> gammax: it's ok, it's not as powerful as NX, but it's popular and easy enough to use
[20:19:00] <gammax> L84Supper, nx?
[20:19:14] <L84Supper> gammax: used to be called unigraphics
[20:19:31] <L84Supper> http://www.plm.automation.siemens.com/en_us/products/nx/
[20:19:55] <L84Supper> but the full blown version is $35K
[20:20:03] <gammax> ouch lol
[20:20:03] <L84Supper> SW is what $3K
[20:20:10] <gammax> yeah lol
[20:21:12] <L84Supper> NX just has more stuff and you can design things faster
[20:21:13] <pfred1> someone ought to do a kickstarter for some native Linux CAD software
[20:21:37] <gammax> agreed lol
[20:21:53] <pfred1> because I've tried what is out there and it is pretty hurting
[20:21:58] <L84Supper> openscad, freecad?
[20:23:15] <L84Supper> the pro tools just automate lots of things, plus simulation and CAM
[20:23:17] <pfred1> openscad I think is more of a scripting application
[20:23:53] <gammax> L84Supper, which cam you going with ?
[20:24:01] <pfred1> last i looked at freecad the lead dev had no interest in supporting imperial measurements
[20:24:16] <pfred1> they were actually pretty hostile against the idea in fact
[20:24:25] <L84Supper> gammax: we are looking into expanding PyCAM
[20:24:27] <PetefromTn> skunk.. Yeah Connor and I made a TON of good progress over the weekend. Everything is as he said and more...
[20:24:33] <L84Supper> a few others are as well
[20:24:42] <gammax> L84Supper, any thoughts on camworks?
[20:24:49] <PetefromTn> Connor: I do need to take some pictures but I kinda wanted to wait on it until I get the wiring all tidied up a bit.
[20:25:17] <L84Supper> gammax: never used it, NX CAM or MasterCAM mostly
[20:25:43] <gammax> L84Supper, if your using nx then where do you work? lol I would imagine it to cost a boat load aswell...
[20:26:04] <PetefromTn> Wish I could afford mastercam because it seems like all the shops locally use it. If I had access to it to play with I would learn it quick I am sure and use it on my VMC to test the code.
[20:26:18] <L84Supper> gammax: most of the oem's we work with only use NX
[20:26:54] <pfred1> 35K for software they should ship it on a PC
[20:26:55] <PetefromTn> gammax: I built my first machine out of a Lathemaster RF45 and it was a very nice machine. Did all sorts of cool stuff with it before I sold it to finance this Cincinatti Arrow 500 project....
[20:28:40] <gammax> PetefromTn, what kinda parts did you attach to the 45?
[20:29:05] <PetefromTn> gammax: Whaddya mean?
[20:29:23] <PetefromTn> We talking accessories or motors/hardware
[20:29:25] <gammax> steppers? what size and brand... etc. Would be much appreciated
[20:29:43] <PetefromTn> No steppers, went with DC servos and Gecko Servo drives.
[20:29:49] <Valen> we are using 500W scooter motors on ours
[20:30:21] <PetefromTn> On your what?
[20:31:37] <PetefromTn> gammax: You can read all about my RF45 build on the CNCzone in my thread called "Finally Getting started". It spans some considerable time and lots of posts but you can see my ballscrew conversion, CNC conversion and my Belt driven spindle upgrades...
[20:31:43] <gammax> i currently have 550w steppers for x and y and a 1200 for the z
[20:32:01] <PetefromTn> That should work fine...
[20:32:52] <PetefromTn> Do yourself a favor and fabricate some kind of counterweight for the millhead or do like I did and install some industrial Gas shocks. My machine really came into it's own when I did that and it also made it easier to lift that heavy head LOL
[20:33:11] <PetefromTn> Should have done that way back in the beginning....
[20:34:02] <Connor> PetefromTn: You do anything on the machine today?
[20:34:15] <Valen> we have a HM45
[20:34:38] <PetefromTn> Connor: Not a lot spent the day with the kids and got my yard mowed and trimmed it was getting BAD!
[20:34:39] <Valen> we replaced the head totally with an epoxy granite thing
[20:34:58] <PetefromTn> Oh so you are the guy with that EG millhead RF45....
[20:35:01] <Connor> Figured as much.. we kicked a$$ yesterday.. I slept half the day away.. :)
[20:35:06] <gammax> Valen, can you explain anymore on that?
[20:35:14] <Valen> wait a sec I'll find it
[20:35:26] <Valen> http://www.cnczone.com/forums/general_metal_working_machines/118358-phenolic_basalt_head_our_hm45.html
[20:35:32] <gammax> thanks!
[20:35:36] <PetefromTn> Interesting setup with the EG and it looks like you did a decent job. As I recall you did a higher speed spindle too..
[20:35:51] <Valen> its mainly about the head
[20:36:25] <PetefromTn> Connor: LOL not surprised I slept in quite a bit. Got a lot done and I really appreciated all of your help and ideas...
[20:36:55] <Connor> Okay.. Why make a new head and use Epoxy Granite ?
[20:36:59] <gammax> Valen, did you guys make that head?!
[20:37:11] <Valen> yes
[20:37:27] <Valen> because the old one was craptacular Connor ;->
[20:38:20] <gammax> that is very interesting!
[20:38:37] <Valen> new one goes to 24k rpm
[20:38:57] <PetefromTn> Honestly the head on mine was more like the IH one and was not too bad really. The original gear head setup kinda sucked with slowish speeds and noisy gears but it worked fine once I gutted it and installed the belt drive. Should have done a timing belt drive at the top of the millhead the same way...
[20:39:28] <PetefromTn> Why do you need 24k? Do you just make aluminum parts or PCB's?
[20:39:36] <Valen> we make everything lol
[20:39:46] <Valen> we do make PCB's and a fair bit of Al
[20:39:50] <PetefromTn> Valen, where are you located?
[20:39:51] <Valen> but also stainless steel
[20:39:55] <Valen> sydney australia
[20:40:05] <gammax> yeah im gettin a belt drive setup next week...
[20:40:32] <PetefromTn> Most of the really high speed spindles suck at low speed, surprised to hear you cut stainless with the same spindle...
[20:40:50] <Valen> water cooled, pump the amps in and don't take a heavy cut ;->
[20:41:08] <PetefromTn> Belt drive is the way to go on the RF45 believe me.... Unless you completely remake the millhead like our friend Valen here....
[20:41:42] <PetefromTn> I am sure but still most folks cut stainless at much lower RPM... Cutting it with fast speed and high feed is kinda nutz.....
[20:41:59] <Valen> the other thing is to use a smaller tool
[20:42:05] <Valen> so the RPM can stay high
[20:42:08] <Valen> well highish
[20:42:15] <gammax> i picked up a balder washdown 3hp 3450 for 125.
[20:42:18] <PetefromTn> what's highish?
[20:42:30] <Valen> 6K 8K something like that
[20:42:37] <gammax> high of 9k rpm
[20:42:55] <PetefromTn> I used a 3hp 1725 and a belt ratio to bring me around 7k....
[20:42:55] <gammax> but ill only go to about 7500 to keep everything good.
[20:43:52] <PetefromTn> Believe me 7k is PLENTLY.... Do yourself a favor and use a timing belt setup even if you have to have it machined. Lots of guys make their own ribbed belt and they just look too small to me to bring any real torque into the equation.
[20:44:18] <PetefromTn> Also try to make a two speed belt drive with a real low speed for tapping and whatnot...
[20:44:44] <gammax> got a guy makin me one for 500, real nice setup
[20:45:22] <gammax> 2 speed belt setup and I bought a omron photomicrosensor
[20:45:30] <gammax> for timing.
[20:45:52] <PetefromTn> Honestly now that I have been working on a VMC here and see how it is built and even run one for awhile I cannot imagine building a machine from a manual machine anymore... it was a LOT OF WORK...
[20:46:13] <PetefromTn> Just make sure it is a timing belt setup anything else is just a compromise....
[20:49:53] <gammax> i want to mount the photomicrosensor to the inside of the head and have it right against the spindle shaft.
[20:50:55] <PetefromTn> Inside the spindle body?
[20:51:29] <gammax> i may be using wrong term...
[20:53:00] <PetefromTn> If your setup is anything like mine you could mount it above the spindle housing in the area where the old gear used to couple to the rest of the gear train but that would be a tighish fit.
[20:53:02] <gammax> collet holder that has the 5 or 6 teath on it.
[20:54:44] <gammax> the sensor is tiny
[20:55:08] <PetefromTn> This is wicked cool....anyone on here? http://www.youtube.com/watch?v=nebJ59TcYlQ
[20:55:10] <Tecan> (nebJ59TcYlQ) "CNC hexapod parallel robot 5 axis milling" by "PKM077" is "Tech" - Length: 0:00:43
[20:56:21] <pfred1> I for one welcome our new robot overlords
[20:56:23] <gammax> PetefromTn, http://www.ebay.com/itm/NEW-OMRON-EE-SY672-Reflective-Photomicrosensor-w-sensitivity-adjuster-/320968554164?pt=LH_DefaultDomain_0&hash=item4abb3776b4
[20:57:20] <PetefromTn> gammax: That looks like a nice one... Inside the head should keep it out of harms way...
[20:57:27] <PetefromTn> pfred1: LOL....
[20:57:39] <gammax> im assuming it will be able to keep a good speed aswell lol
[20:57:55] <PetefromTn> Does it trigger on a tape mark or what?
[20:59:06] <pfred1> someone should invent a CD speed system where you burn a special CD and read it with an old CD drive head
[20:59:14] <pfred1> that would be cool!
[21:00:19] <nazarm> and funny
[21:00:33] <PetefromTn> Tecan: (nebJ59TcYlQ) "CNC hexapod parallel robot 5 axis milling" by "PKM077" is "Tech" - Length: 0:00:43 What does this mean exactly it is TECH?
[21:00:43] <pfred1> it'd be better than printing outthose funny patterns
[21:01:30] <pfred1> I imagine CD data is pretty precisely aligned onto CD discs
[21:02:09] <PetefromTn> Connor: hey man whatyadoin?
[21:03:32] <gammax> its a reflective sensor
[21:04:29] <Connor> PetefromTn: At the moment.. Prepping Hamburger and boiling water for spaghetti.
[21:04:39] <gammax> i will polish the outer teather on that spline and the inner area will be black
[21:05:07] <PetefromTn> Cool...we made twice baked potatoes with bacon etc... it was yummy....
[21:06:12] <pfred1> I want to get flooded out so the government gives me a gigantic slice of bacon http://media.al.com/live/photo/national-flood-insurance-program-3caca7de73759532.jpg
[21:06:14] <L84Supper> http://www.beckhoff.com/english.asp?twincat/einlei1.htm howto interface Linuxcnc to Beckoff PLC's?
[21:08:05] <Connor> Wife is working on the Shirts and Brochures and stuff for Critter Fest. Figured I would help by cooking tonight.
[21:10:45] <L84Supper> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Etherlab ah hah
[21:11:22] <gammax> critter fest?
[21:12:57] <r00t4rd3d> you got crabs?
[21:12:58] <jdh> it's a tennessee thing, go around picking up all the critters (possums, squirrels, etc) and have a cookout
[21:13:12] <r00t4rd3d> thats called hillbilly
[21:13:23] <PetefromTn> LOL...damn I gotta get outta Tennessee....
[21:13:24] <r00t4rd3d> HillBilly BBQ
[21:14:05] <r00t4rd3d> GREEEEN Acres is the place for me....
[21:14:13] <PetefromTn> Not for me....
[21:15:55] <r00t4rd3d> i worked 12 damn hours today
[21:16:44] <PetefromTn> on a SUNDAY?
[21:17:09] <Connor> jdh: Funny. Hah Ha.. Not, it's a local event held every year to help raise money and bring awareness to animal abuse and killing of animals in shelters.
[21:17:59] <PetefromTn> You can have my dog, he's a pain in the ass LOL....
[21:18:10] <r00t4rd3d> yeah pete, redoing a bar and they want to open soon
[21:18:16] <r00t4rd3d> getting warm out
[21:19:13] <PetefromTn> Redoing in what way?
[21:19:26] <r00t4rd3d> it was gutted and redone
[21:21:04] <r00t4rd3d> the building part is done, I am finishing the hardwood parts of the bar.
[21:21:10] <PetefromTn> No I mean what part of redoing it was your responsibility? Cabinetry, plumbing, painting, etc...
[21:22:27] <PetefromTn> Aah... I have done a TON of professional woodworking...
[21:24:21] <r00t4rd3d> They got a Cherry hardwood bar rail that wraps around the granite bar top in a horseshoe shape
[21:24:40] <r00t4rd3d> 4 pieces, $3500
[21:24:58] <PetefromTn> Nice... I love cherry.
[21:25:48] <r00t4rd3d> Im doing the assembly, mounting, sanding, staining, poly.
[21:25:51] <PetefromTn> I once built a fireplace that was over 25 feet high and around twelve feet wide with raised panels and gorgeous heavy mouldings for a show home here in Tennessee...
[21:26:16] <PetefromTn> Don't remember what it cost but I am pretty sure there are a lot of new cars that were cheaper to buy.
[21:29:12] <PetefromTn> This is pretty sweet...http://www.youtube.com/watch?v=ut2xiJFFJBA
[21:29:19] <Tecan> (ut2xiJFFJBA) "Alpine G Series riser machining" by "fastalpine" is "Sports" - Length: 0:02:04
[21:33:53] <r00t4rd3d> Hoggy
[21:34:28] <s1dev> don't ask? :P
[21:35:03] <r00t4rd3d> i though your bnc was on the fritz
[21:35:07] <r00t4rd3d> thought*
[21:35:43] <s1dev> more like I forgot that it would give everyone in every channel a notification that I'd changed nicks :P
[21:36:48] <r00t4rd3d> jdh i spotted your car : http://i.imgur.com/fxxmvqj.jpg
[22:04:53] <nazarm> so much documentation to look at…
[22:10:14] <Valen> PetefromTn: here is our mill cutting some stainless http://www.vapourforge.com/russell/mill/mill%20pics/knife/
[22:10:42] <Valen> thats the old head i think
[22:11:56] <Valen> new one did make this http://www.vapourforge.com/jake/stuff_made/sasha-plaque/sasha-plaque.jpg
[22:12:37] <gammax> on linux cnc should the limit switches be in an opened or closed position? Ill be using the parallel port.
[22:14:10] <nazarm> Mine are run in the closed state, and go open on contact. But I'm using a mesa card
[22:15:27] <Valen> closed is probably better, in a wiring fail will be detected
[22:16:00] <PetefromTn> Valen: That looks pretty cool man. You did a great job on that machine. The RF45 are probably the best of the benchtop machines...
[22:16:52] <PetefromTn> I just was watching some youtube videos of machining and I could not resist going outside and playing with the Cincinatti. Now that the power drawbar is working I can insert a tool and run the spindle in both directions and all three axes are working...
[22:16:57] <gammax> I guess closed is the way to go!
[22:17:07] <gammax> you run them in parralel?
[22:18:07] <gammax> I have this... http://www.ebay.com/itm/Upgraded-5-Axis-Cnc-Breakout-Board-For-Microstep-Controller-Cables-Software-/130880099971?pt=LH_DefaultDomain_0&hash=item1e790fd683
[22:18:10] <Valen> they are crap lol
[22:18:17] <Valen> we are making a new one
[22:18:29] <PetefromTn> I put a big corn cob rougher in the spindle and clamped a piece of aluminum down to the table top and just did some whittling to make me giggle. Still a lot of fine tuning to do before it is ready for prime time and the damn pneumatic oiler out back on the rear of the column is leaking air pretty badly so I will need to address this soon as I hate hearing the compressor running alll the time.
[22:18:48] <PetefromTn> Well I was just trying to be nice LOL...
[22:18:52] <Valen> http://www.youtube.com/watch?v=frIssODebKA&list=PL04F6B774F23F6873
[22:18:53] <Tecan> (frIssODebKA) "3600mm/minute 9600RPM 4 flute 6mm cutter" by "zyeborm" is "Tech" - Length: 0:00:24
[22:18:58] <Valen> lol
[22:19:00] <Valen> thats also me
[22:19:01] <PetefromTn> Stainless can be a real beotch to machine...
[22:19:09] <nazarm> yup
[22:19:13] <PetefromTn> so you're in oz...?
[22:19:17] <Valen> yeo
[22:19:19] <Valen> yep
[22:19:40] <gammax> oz?
[22:19:45] <Valen> australia
[22:19:49] <gammax> ahhhh
[22:19:50] <gammax> ozzy
[22:19:55] <PetefromTn> I have a fellow who has another Cincinatti Arrrow 500 who lives in New Zealand and I sold him some of the old parts from my machine....nice fellow.
[22:19:56] <nazarm> everything being extra rigid makes stainless a bit easier.
[22:20:12] <gammax> i went to thailand with a few of you boys. Awsome people!
[22:20:12] <PetefromTn> Sure does... Cannot wait to hit some stainless with my VMC here soon...
[22:20:45] <PetefromTn> meh they're alright....don't give valen a big head now.
[22:21:54] <PetefromTn> Checkout this Fadal milling a sweet bow riser with an interesting fourth axis setup. Pretty sweet...http://www.youtube.com/watch?v=YGOsGMz0aH4
[22:21:55] <Tecan> (YGOsGMz0aH4) "Maitland USA Zeus" by "a5sniper1978" is "Sports" - Length: 0:10:00
[22:22:11] <gammax> meant to say your
[22:22:16] <PetefromTn> Why does Tecan always do that when I post a youtube video link..
[22:25:03] <PetefromTn> Hoping my new Spindle encoder comes in the mail tomorrow so I can machine a spindle shaft adapter and get it installed....
[22:26:37] <gammax> im in the process of also reassembling a hardinge hc...
[22:26:45] <gammax> which I didnt take apart!
[22:30:16] <PetefromTn> A hardinge lathe is a sweet machine. I had one for awhile but it was not the kind of lathe I really need so I sold it. Would love to find a CNHC or something like an older Cincinatti slant bed to convert next.
[22:31:47] <gammax> this one had a gang tool style holder on it. with anilam crusader...
[22:31:53] <gammax> im hoping the crusader 2 works...
[22:32:23] <PetefromTn> Love gang tooling....
[22:33:30] <gammax> im in the process of trying to learn solidworks so my first try is creating a gang tool holder like http://www.ebay.com/itm/8-Position-Gang-Tool-Bar-OmniTurn-805-Tool-Holder-/290895634805?pt=LH_DefaultDomain_0&hash=item43babb2175
[22:34:03] <nazarm> hmm I wonder if I have the same setup
[22:34:11] <nazarm> I've been trying to figure it out..
[22:35:11] <gammax> nazarm, same setup as in?
[22:35:46] <nazarm> I think it it was anilam built and was retrofit for a Hardinge DV-59 lathe that we just finished rebuilding and now I'm in the process of getting everything configured and working.
[22:36:22] <gammax> nazarm, do you have photos? Id LOVE to see if we have the almost same type machine...
[22:36:50] <PetefromTn> That's what I had the DV59...nice little lathe...
[22:37:25] <gammax> theres a panel on this thing that says hardinge hc and then another that says hch.. no idea
[22:38:11] <nazarm> I'm actually was just reading about what actions happen when a M6 command happens
[22:40:11] <nazarm> http://www.flickr.com/photos/garthnet/
[22:40:41] <nazarm> you'll find some photos in there.. it's nothing to fancy build wise but we are learning.
[22:42:14] <nazarm> http://farm9.staticflickr.com/8190/8359505033_acc82cee73.jpg
[22:43:46] <gammax> yup
[22:43:58] <gammax> thats her with slight differances
[22:44:12] <PetefromTn> Gammax, You know once you get it working making a gang tooling fixture like that will be a piece of cake, just bolt it on and then use the machine to drill and bore the holes for the tools exactly on center...
[22:44:57] <gammax> PetefromTn, yeah im figuring it is a great thing to learn from...
[22:45:30] <PetefromTn> Yeah I have done that to make homebuilt boring toolholders and drill holders for my manual lathe many times.
[22:45:52] <PetefromTn> My Cincinatti seemed to like cutting metal again tonight LOL....
[22:46:11] <nazarm> yeah we just bored a new plate on the lathe
[22:47:05] <gammax> nazarm, did u make new gears for the ball screws?!
[22:47:29] <nazarm> we just ordered them
[22:47:45] <PetefromTn> nazarm: I see you are into bikes too LOL
[22:48:34] <Connor> PetefromTn: Interesting on that video of the Compound bow.. They have to move the bow out of the way in some cases to do the tool change..
[22:48:59] <PetefromTn> Yeah man and that is a BIG mill....
[22:49:05] <nazarm> yeah.. that is actually another guy in the shop who took the photos. I'm not very good on the flickr front.
[22:49:11] <PetefromTn> Made some chips tongiht....!!
[22:49:30] <Connor> I saw. How it do ?
[22:49:33] <Connor> Wife happy ?
[22:49:58] <PetefromTn> nazarm: I recently completed my own recumbent bike, it is really fun to ride. It is an SWB with USS...peace
[22:51:01] <PetefromTn> Connor: Actually it did fine but I still have the Y axis way cover strapped up so I could not get the millhead down enough to reach the metal without using an extended toolholder. It did good. I think my spindle belts are needing replacement because they kinda vibrate at certain frequencies and speeds
[22:51:09] <PetefromTn> Wife's in bed LOL...
[22:51:36] <nazarm> what kind of mill?
[22:51:36] <Connor> Oh. So, she doesn't know yet.
[22:51:37] <PetefromTn> Gonna be really sweet to be able to use this machine to make stuff. I MISS having a mill to cut parts with and this thing is a beast.
[22:51:56] <PetefromTn> Yeah she honestly will not get happy about it until it starts paying the bills LOL....
[22:52:10] <gammax> nazarm, do you have any other photos of the mill im having a few issues of reassmbling it....
[22:52:36] <Connor> I think in a few more weeks you'll be able to do that.
[22:52:57] <nazarm> gammax: which mill? our bridgeport?
[22:53:01] <PetefromTn> The bow video is really interesting, would LOVE to machine my own riser for a compound on the Cinci somehow. probably have to make fixtures to drill the end holes at that angle tho there is not enough travel in the machine to make it work. UNLESS...
[22:53:08] <gammax> nazarm, sorry i meant lathe!
[22:53:28] <Connor> I still have allot to learn about machining stuff.. I.E. proper ways to hold stuff.. proper bits and speeds.. and depth of cuts.. etc etc..
[22:53:31] <PetefromTn> unless I can fixture the riser hanging off the side of the table somehow... It will probably fit then..
[22:53:34] <nazarm> gammax: possibly what do you need?
[22:54:21] <PetefromTn> Connor: I can help you with what little I know man... If you hang around here once the machine is running I am gonna be looking for work for it fast and furious so I can pay back myself for all this money and time LOL
[22:54:41] <gammax> everything you got! haha specificly how the way covers go on... how the ball screw is mounted to the from pulley plate.. etc
[22:54:55] <PetefromTn> There was a guy in Nashville selling a pair of CNC machininst vises for a reasonable price. Looked like the shars chinese ones....
[22:56:10] <gammax> speaking of vises... is there truly a difference between a 400 dollar vise and a chinese one?
[22:56:25] <nazarm> yes
[22:56:27] <WalterN> when looking at laser beam divergence, the units generally given are "NA"... what does NA mean?
[22:56:28] <PetefromTn> Art told me that Mike Kilroy posted in a couple threads about using a believe it or not water heater element as a resistor for the spindle...
[22:56:38] <PetefromTn> Hell yes is a better answer LOL..
[22:56:42] <WalterN> its a half angle thing... but.. degrees? radians?
[22:57:41] <PetefromTn> Altho some of the chinese cheaper vises are getting a LOT better lately. Still cannot beat a good kurt for the money. There are several better vises out there but the kurts are worth every penny in my experience.
[22:57:44] <Connor> http://www.tormach.com/store/index.php?app=ecom&ns=catshow&ref=multicat_cnc_vise
[22:57:50] <Connor> I think that would work good on my g0704.
[22:58:20] <PetefromTn> Don't you have a five inch now?
[22:58:30] <nazarm> a worn out old and beat up kurt vise is about the same quality of new chinese vise
[22:58:41] <Connor> Yes. But.. standard machinist vise.. not cnc style.
[22:58:45] <PetefromTn> LOL yes exactly....
[22:58:49] <nazarm> and I'm say totally destroyed kurt vise
[22:58:59] <Connor> Wit that one.. I could make it flush so it doesn't over hang the back of my table..
[22:59:20] <Connor> I can with the one I have now.. but.. Would just have to use the edge clamps..
[22:59:34] <PetefromTn> That was a problem for me with the RF45, I had to use the front tee slot to hold down the vise...
[22:59:54] <nazarm> gammax: but we don't have to much in the way of photos of it all pulled apart
[22:59:57] <Connor> I've got mine in the center slot right now.. loose about 1"
[23:00:17] <PetefromTn> Honestly unless you have a need to buy the CNC vise for some specific application I'd just keep the one you have.
[23:00:23] <gammax> nazarm the more you have the better. I would owe you a debt!
[23:00:33] <PetefromTn> Clamp it wherever you need it.
[23:01:04] <Connor> I *HATE* having to tram the dang thing every time I move it..
[23:01:05] <PetefromTn> Something else to consider is to buy a nice screwless vise to go with it...
[23:01:23] <PetefromTn> well you gotta get used to that, don't you have it keyed?
[23:01:32] <Connor> No.
[23:01:43] <PetefromTn> Well that really helps get you close..
[23:02:06] <PetefromTn> I'm gonna need to find a vise for this monster soon LOL
[23:02:08] <Connor> I have them sitting here.. I think they expect you to machine them down.. because they don't fit.. the vise OR my keyway.
[23:02:26] <PetefromTn> Yup you gotta mill them to fit...
[23:02:38] <gammax> the t bar things?
[23:02:57] <Connor> gammax: The keyway ?
[23:03:25] <Connor> PetefromTn: I wasn't confident enough to mill them yet when I got the machine..
[23:03:31] <PetefromTn> It sure was cool to cut some metal with the VMC tonight. Tomorrow I am gonna start reassembling the table guards so I can use it the way it was meant to be used. Just want to really clean the linear guideways and stuff...
[23:03:46] <gammax> Connor, thats what i meant lol
[23:03:58] <Connor> T-slots or keyways..
[23:04:00] <PetefromTn> Thats cool it takes time to get acquainted with machining....
[23:04:14] <Connor> PetefromTn: What type of coolant you going to use ?
[23:04:45] <Connor> I've got a gallon of this.. http://www.tormach.com/store/index.php?app=ecom&ns=prodshow&ref=31750
[23:04:59] <PetefromTn> Joe in PA that helped me to try to get the original control working has the same exact machine and he uses something calle trim sol or something like that and It looks pretty good....
[23:05:39] <Connor> I need to get a refractometer.. as I don't have one yet.. and It's been sitting for a while now.. so I know I need to add water..
[23:05:53] <PetefromTn> That Tormach stuff is supposed to be pretty good but I would need a BUNCH of it I think..... I cannot remember how many gallons it takes to fill the system but it is a bunch....
[23:05:55] <gammax> I have TRIM MICROSL585XT
[23:06:09] <PetefromTn> How ya like it?
[23:06:23] <Connor> 20:1 dilution.
[23:06:43] <PetefromTn> Yep I think my machine takes like 50 gallons or more...
[23:06:49] <gammax> I havnt even opened the bottle lol
[23:07:01] <PetefromTn> gallon?
[23:07:24] <Connor> depending on what your doing... you can go up to 30:1
[23:07:44] <Connor> I've not used it to cut anything yet.
[23:07:57] <nazarm> gammax: No luck finding more photos but if you want I can ask the other guys if they have some
[23:08:04] <PetefromTn> In a machine of this size you want to keep the water ratio kinda rich so you have less chance of funking up...
[23:08:12] <gammax> nazarm, That would be great!
[23:08:32] <Connor> more coolant? or more water ?
[23:08:37] <PetefromTn> You need to get that enclosure built. I cannot imagine having a CNC mill without an enclosure for flood coolant.
[23:08:41] <nazarm> feel free to msg me your email and I'll see what I can do
[23:08:44] <PetefromTn> More coolant...
[23:08:44] <Connor> I ust don't anything to rust..
[23:09:00] <Connor> Just..
[23:09:15] <PetefromTn> If you keep it from evaporating and wipe down every time you use it there is no issue...
[23:09:34] <Connor> They say the coolant doesn't evaporate.. just the water..
[23:09:38] <Connor> so, that's good
[23:09:52] <L84Supper> http://chicago.craigslist.org/nch/tls/3726077310.html it's back
[23:10:04] <PetefromTn> I used that blue stuff, cool mist or whatever for awhile on the RF45 and it worked okay but it made black marks under my vise that were a bitch to remove...
[23:10:29] <gammax> L84Supper, damn thats big!
[23:11:06] <Connor> I may want you to come over and look at my shop in person and help me figure out the enclosure and help me design it..
[23:11:18] <PetefromTn> Acroloc, those were actually decent machines years back. They have a funky toolholder setup tho..
[23:11:24] <nazarm> with coolmist it's a good idea to lay down some LPS
[23:11:32] <PetefromTn> that fourth axis would look good on my Cincinatti..
[23:11:50] <PetefromTn> Connor: No problem...
[23:11:54] <Connor> I love the C-clamp as a knob.
[23:11:57] <PetefromTn> nazarm: LPS?
[23:12:05] <L84Supper> PetefromTn: it comes with tooling and somebody still makes it
[23:12:24] <PetefromTn> Oh it's yours?
[23:12:28] <gammax> is there still linuxcnc fest's?
[23:12:37] <L84Supper> nah, it's just nearby
[23:12:44] <PetefromTn> gammax: yeah at my house LOL....
[23:12:59] <PetefromTn> Are you gonna grab it?
[23:13:22] <PetefromTn> That might make a cool retrofit project if you like those machines and have the space....
[23:13:35] <nazarm> PetefromTn: Corrosion inhibitors
[23:13:54] <PetefromTn> I'm loving my Cincinatti it is just big enough for what I want to do but fits in my shop easily...
[23:13:59] <nazarm> it's just a barrier against the coolmist essentially
[23:14:07] <PetefromTn> Who makes that?
[23:14:23] <gammax> anyone have cad files for gang tool holders? :D
[23:14:29] <nazarm> lpslabs.com
[23:14:37] <Connor> You shouldn't need a Corrosion inhibitor for Coolant.. that's just lame..
[23:14:49] <L84Supper> PetefromTn: I have plenty of space, just not the time
[23:15:16] <PetefromTn> L84Supper: LOL.... I think the 4500 RPM spindle would get old.
[23:15:57] <PetefromTn> gammax: That is such a simple thing, just basically a block with holes in it and you would need to size it to your lathe's travels and what holders you intend to use in it...
[23:16:01] <nazarm> yeah, it's a bit lame but the coolmist works well
[23:16:23] <nazarm> I've been interested in a alternative but haven't found one yet
[23:17:06] <PetefromTn> Connor: I am thinking it would be ool to use one of those extra solid state relays to power a pneumatic solenoid to use for a mister in the Cincinatti or just an air blower.
[23:17:13] <PetefromTn> Cool...
[23:17:15] <gammax> PetefromTn, trying to get one as a referance,
[23:17:29] <Connor> PetefromTn: Wouldn't be a problem.
[23:17:44] <Connor> Still need to figure out the motor setup for the tool changer.
[23:17:58] <Connor> I sure hope it's not a 3 phase motor..
[23:17:59] <L84Supper> PetefromTn: how are those spindles attached to the head?
[23:18:24] <PetefromTn> gammax: That would be hard since each lathe has different center heights and travels and each person uses different toolholders..
[23:18:41] <PetefromTn> Connor: Honestly I will check it out tomorrow....
[23:19:35] <PetefromTn> L84Supper: I don't know, I have a freind who had one in his machine shop locally for awhile and watched him run it several times but he went out of business and now they're gone...
[23:20:11] <L84Supper> http://www.acroloc.com/Acroloc/Acroloc%20Tooling.htm
[23:22:11] <PetefromTn> L84Supper: again I just watched him run it, never run one personally. They look like good solid machines tho.
[23:22:32] <gammax> PetefromTn, true, more of a refereance though for just the cad programming....
[23:23:06] <L84Supper> http://www.ebay.com/itm/GETTYS-5-HP-DC-SPINDLE-MOTOR-ACROLOC-M12-/360411076761
[23:23:21] <PetefromTn> gammax: Tell you what when you get it ready and live I can try to help you with it if you want, the Cad drawing that is..
[23:23:43] <gammax> PetefromTn, that would be great.
[23:24:05] <L84Supper> only Z travel 9 1/2
[23:24:19] <PetefromTn> gammax: I would just draw it in 2.5d with Draftsight and mill it LOL...
[23:25:06] <PetefromTn> L84Supper: http://www.youtube.com/watch?v=LJPE1ciMsWQ
[23:25:07] <Tecan> (LJPE1ciMsWQ) "ACROLOC 3000V Vertical Machining Center Fanuc 11M CNC Contro" by "machineryexchange" is "Tech" - Length: 0:02:43
[23:27:32] <L84Supper> "I use to work for Acroloc in Gardena Ca. modified many spindle mods to accept the 10,000 rpm increase w/o heating up and no chatter during the cut,"
[23:27:37] <PetefromTn> L84Supper: Watching this video it looks like a pretty sweet machine and not terribly huge actually....http://www.youtube.com/watch?v=LbaKx7ZJhDQ
[23:27:38] <Tecan> (LbaKx7ZJhDQ) "1984 Acroloc Series 10, 4-Axis Vertical Machining Center, ID#53545 [Video 1]" by "ABLTech1" is "Tech" - Length: 0:01:47
[23:27:54] <L84Supper> http://www.youtube.com/watch?v=PNx_W5rGAPk
[23:27:55] <Tecan> (PNx_W5rGAPk) "Acroloc CNC Conversion to Mach3" by "Will A" is "Tech" - Length: 0:04:01
[23:28:00] <PetefromTn> L84Supper: 10k DROOL>>...
[23:29:08] <Connor> Talking about vises.. this is the one I got: http://www.shars.com/products/view/62/5x5x112quot_Lock_Down_Precision_Milling_Machine_Vise
[23:29:28] <PetefromTn> Man I'd never build a VMC with mach3 and smoothstepper controls...
[23:30:12] <L84Supper> I might take a closer look at it
[23:30:33] <L84Supper> see what shape it's in
[23:30:43] <PetefromTn> Yeah man especially if you have some experience with them.
[23:31:02] <PetefromTn> Looks like a well built machine anyways. My buddy made some cool stuff with it.
[23:31:40] <PetefromTn> Connor: hey man How can I get the control to show spindle speed now?
[23:32:19] <Connor> I'll have to go look at my mill and see what I did... and send you updated files.
[23:32:42] <Connor> brb
[23:33:00] <PetefromTn> Sweet man...
[23:33:47] <PetefromTn> L84Supper: Having used the Mesa/LinuxCNC combo now on the Cincinattti conversion I cannot imagine using anything else. It is a sweet setup that could probably be used to control about anything.
[23:34:32] <L84Supper> PetefromTn: I'd never use Mach
[23:35:29] <PetefromTn> L84Supper: I used it on my first retrofit of my RF45 and it is fine honestly but now that I have used LinuxCNC I am sold on it. It is just a better more industrial control all around from what I have seen so far.
[23:36:33] <L84Supper> http://tinyurl.com/d33h6zj they have 2 of them
[23:37:29] <L84Supper> they still make parts for those
[23:39:00] <PetefromTn> L84Supper: Man that is a great deal.. I need to get this one finished and start making money with it before I go looking for another retrofit machine.
[23:39:35] <L84Supper> PetefromTn: I have a few unfinished machines here already
[23:39:50] <PetefromTn> Do tell...
[23:40:51] <Connor> PetefromTn: Okay. my config was no help at all.. I forgot I'm doing some major internal PID stuff with mine.. I need to clean it up.. but.. basicly, we add a new control to the gladevcp panel.. and tie to to the commanded-velocity abs pin that we made.
[23:41:26] <PetefromTn> You already did that, the bar is there just don't work yet LOL
[23:41:41] <Connor> No, that's the actual speed.. not the commanded speed.
[23:41:55] <Connor> and since we don't have a encoder.. it doesn't show anything yet.
[23:42:24] <Connor> I have 2 bar graphs and a gauge. 1 is commanded, 2nd is actual, 3rd is analog actual.
[23:43:09] <PetefromTn> Man I honestly don't need that, just actual would be more than fine...
[23:43:14] <L84Supper> http://tinyurl.com/coof6xu even nicer cnc lathe
[23:43:49] <Connor> It's cool because you can see when the G-code changes the speed.. you can see the ramp up/down of the spindle in actual speed.
[23:43:51] <PetefromTn> L84Supper: yummy.... too big tho
[23:43:56] <Connor> You just need to see how mine is setup.. :)
[23:44:43] <PetefromTn> Connor: Okay man, funny thing is I did not want to add all these bells and whistles but now that we are getting close to being completed It is like icing on the cake here LOL
[23:44:59] <PetefromTn> I really want to get that spindle load setup working too...
[23:45:07] <Connor> I think this week I'm going to wire up my encoder to the 2nd lpt port and get that up and running. and hang my controller back on the wall..
[23:45:45] <L84Supper> PetefromTn: it's not too big http://www.youtube.com/watch?v=MTAXWoxPsC4
[23:45:47] <Tecan> (MTAXWoxPsC4) "Hitachi Seiki Hitec-Turn 23S III CNC Lathe at Midwest Machinery Inc. 262-895-3462" by "MidwestMachinery" is "Tech" - Length: 0:01:34
[23:46:53] <PetefromTn> L84Supper: NICE>>..
[23:47:40] <PetefromTn> Checkout this video of the same Alpine Archery who incidentally makes some SWEET bows cut on Haas equipment....http://www.youtube.com/watch?v=E9FO1ekgcL0
[23:47:41] <Tecan> (E9FO1ekgcL0) "Hunting Bows Manufactured by Haas Machines" by "haasautomation" is "Sports" - Length: 0:04:48
[23:50:51] <r00t4rd3d> http://watertown.craigslist.org/tls/3731346039.html
[23:51:00] <r00t4rd3d> man i want all that
[23:51:34] <L84Supper> it's an entire museum of tools
[23:52:31] <r00t4rd3d> better then just about all the new stuff made today
[23:52:34] <PetefromTn> LOL..you'da loved my shop before I went metal working, I had a complete cabinet shop with planers, moulders, jointers, sanders, bandsaws, tablesaws fully equipped you name it...
[23:52:52] <r00t4rd3d> I have all the stuff in that ad
[23:53:04] <r00t4rd3d> but newer
[23:53:34] <PetefromTn> Well fellas Gotta hit the sack Gnight...
[23:54:02] <r00t4rd3d> dont be hitting your sack
[23:54:16] <PetefromTn> LOL no that is painful...
[23:55:03] <LeelooMinai> Any ideas what forces are involved when millin aluminium on a small DIY CNC?
[23:55:21] <r00t4rd3d> 8pounds per square inch.
[23:55:38] <LeelooMinai> I Isn't that pressure?
[23:55:46] <r00t4rd3d> i was kidding
[23:56:04] <r00t4rd3d> but really without knowing your machine, its a guess.
[23:56:13] <LeelooMinai> I mean some approximate force in Newtons that would work on the spindle
[23:56:30] <LeelooMinai> I don't think it's dependent on the machine (?)
[23:56:36] <r00t4rd3d> sure it is
[23:56:52] <LeelooMinai> No...
[23:57:03] <r00t4rd3d> okay it isnt.
[23:57:38] <LeelooMinai> My question is about material really - millin aluminium at normal/slow speed
[23:57:47] <r00t4rd3d> if I build a cnc with 1/4 screws compared to one with 1/2 screws, would the forces be different?
[23:58:08] <r00t4rd3d> lead*
[23:58:12] <LeelooMinai> r00t4rd3d: I am calculationg it in reverse - I need to know forces to apply to the CNC:)
[23:58:39] <LeelooMinai> And you think I want to know what CNC will do to the workpiece...
[23:59:24] <LeelooMinai> Surely there must be some approcimate force figure that will work for aluminium