On Sunday 28 August 2016 16:48:27 Ron Ginger wrote: > On 8/28/2016 11:38 AM, emc-users-requ...@lists.sourceforge.net wrote: > > Hi Ron. We met at one of your PA cocofests decades ago. I'd like to > > google for that machine, but I'd likely put linuxcnc in it as I'm > > moderately familiar with it. Name of machine please? > > > > Thanks. > > The one I got is http://www.ebay.com/itm/321887320580 There seem to be > several vendors with the same unit. I ordered from galaxyond. The web > page says they ship from CA, but mine came from NJ and was here in > just 4 days. > > I am running it with Mach4. It simply has a db25 connector on the > back, so anything that acts like a parallel port will drive it. I > still do not have the pins sorted out for the spindle control, but I > did find the stepper connections. They supply a manual with it that > shows all the mach3 screens for config so you can pick off the > necessary pins numbers and steps per unit. > > ron ginger
I had, 2 years back, looked at that family of machines, but lost interest when I found they had more or less normal screws, and at the time, they were higher than now. With a 4th axis, that is now a quite decent price. But I think the objection to the screws still stands. However I am learning a lesson on screw life. When I put a 1605 on my wildly hacked up 7x12 for its Z screw a couple years ago, I looked at the molded felt wipers in both faces of the nut & figured those would do an entirely adequate job of wiping away the swarf. I hadn't checked the backlash in about a year, which was in the .0015" area then. In the meantime I switched its native mode to mm's. and as it was working on the final cuts of a block of cast iron to replace its own weeping willow compound feed, I noted it was cutting heavier in one direction than the other, this despite its now having tapered gibs. So when the job was done, I did some incremental moves, with a dial on the toolpost, and had to increase the z backlash to .179 mm's in the ini file to restore a .1" move to be .1000 inch. So when I put that 2505 1500mm screw in the Sheldon, I have some brand new but NOS satelllite jack bellows that will be put around that screw to help keep it clean. I bought them intending to cover the little monsters screw, but they are both too big around, and collapsed, still too long. As far as that size of machine, the Sable seems to be much better built, but will need a better spindle in the long run. I may yet get one for pcb carving as the spindle in the one I have used for that on a couple dozen occasions peaks at 2500 revs. So the usable feed rates are only 2 or 3 times faster than watching grass grow. One double sided board a day is not a very good production rate. :( Take care Ron. Live long and prosper. :) Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
