Tex & Steve (PMDX) have done a couple ball screw micromills. I go to the monthly meetings and have seen them;) I think Tex has to machine the nut a little to fit but they appear to work great. Might want to drop Steve a line again and see what they're doing if he doesn't pipe in here first.
On Thu, Jan 23, 2014 at 9:24 AM, Gene Heskett <ghesk...@wdtv.com> wrote: > On Thursday 23 January 2014 09:13:54 Russell Brown did opine: > > > Quoth Jeshua Lacock..... > > > > >I figured backlash was common to just about all reasonably priced > > >mills, and I was wondering what folks did with them to compensate with > > >CNC. > > > > FWIW, I "cnc'd" my "WMD30LValike reasonably priced mill" using the > > standard ACME screws thinking that backlash could be compensate for by > > software and/or that the backlash wouldn't annoy me. > > > > Neither was true (cutting forces push/pull the tool around the backlash > > envelope creating facets on the work) and I'm now in the middle of > > retro-fitting ballscrews.... > > > > ...which I should have done in the first place; Gawd knows there's > > enough advice on that there Internet saying 'just fit ballscrews'. > > Agreed and amen. Unforch, the size of ball screws it takes to do that to > my HF micromill, are made out of pure unobtainium. The smallest I can buy > on fleabay is 12mm and those nuts are 3x the size on the 8mm cartridge nut > and screw that I got one of from Steve (PMDX) a couple years ago. There is > not room for the 12mm screws I can get from asia in the micromill. > > So, come warmer weather, I'll see if I can make a suitable container for > the thermally molded acetal nuts per that link I reposted yesterday. > > 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) > Genes Web page <http://geneslinuxbox.net:6309/gene> > > NOTICE: Will pay 100 USD for an HP-4815A defective but > complete probe assembly. > > Microsoft is not Y2K compliant: Windows 95, 98, ... and back again to 01 > A pen in the hand of this president is far more > dangerous than 200 million guns in the hands of > law-abiding citizens. > > > ------------------------------------------------------------------------------ > CenturyLink Cloud: The Leader in Enterprise Cloud Services. > Learn Why More Businesses Are Choosing CenturyLink Cloud For > Critical Workloads, Development Environments & Everything In Between. > Get a Quote or Start a Free Trial Today. > > http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
