On Tuesday 16 March 2010, Jon Elson wrote: >Slavko Kocjancic wrote: >> Somewhere somebody write that 90% users have ATC. > >Maybe 90% of commercial CNC machining centers have ATC, I SERIOUSLY >doubt 90% of EMC2 users have it. >Even the monster EMC2-controlled machines at MPM in Wichita don't have >an ATC. >(The Mazak at Cardinal Engineering did have a working ATC, however, so >it CAN be done with EMC2, just that there are a LOT of machines out >there that do NOT have an ATC.) > >Jon Neither does mine Jon, but AIUI, this isn't rocket science although it might need a little rocket fuel. ;-) Or a round tuit, that would be helpful.
BTW I am still looking for a pair of (front and back) round tUIt patterns I can scale to about a 50 cent piece size. I've been promising a friend I was gonna make a small bag of them at some point. I already have a couple sticks of alu for them. Sticking a piece of pcb material, with the copper still on it, to a little used corner of the table shouldn't take more than something to clean the table down to bare metal so the superglue would bond well, and a tube of superglue. Solder the sense wire to a pulled up spare port pin, and a short jog to that location & a creep down till the port pin goes low, _should_ make an el-cheapo switch. The only fly I could see is that since the ground would assume to be through the spindle bearings, and they run on an oil film, it might not be too bad an idea to have a ground (wired also) spring against the tool shank or the bottom of the collet to assure the tool does have a good ground. I don't see any reason that sub thousandth accuracy could not be obtained if the copper film on the pcb is kept reasonably clean. Spindle stopped of course. ;-) -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Suggest you just sit there and wait till life gets easier. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
