----- Original Message ----- From: "Philip Pemberton" To: Sent: Thursday, May 11, 2006 5:49 PM Subject: Re: [PIC] CNC PIC Programmer > In message <200605111632.k4BGWoJW017480@fort-point-station.mit.edu> > "Howard Winter" wrote: > >> Ah, you didn't take the mating part from the printer(s) then? I always >> try >> to make sure I have matching parts >> when I cannibalise something... > > I did, but it's a plastic gear that looks shoddily made at best. > >> These would wear really quickly. If you can't get steel rails (silver >> steel would be good) then at least use >> chromed copper, so there's some resistance to surface wear. Otherwise >> the >> copper (/brass) will creep away >> from the bearing surfaces. > > Hmm, that would be a pretty big problem. An even bigger problem is the > fact > that I can't seem to find anywhere that sells suitable steel rails... > > -- > Phil. | Kitsune: Acorn RiscPC SA202 64M+6G > ViewFinder > philpem@dsl.pipex.com | Cheetah: Athlon64 3200+ A8VDeluxeV2 > 512M+100G > http://www.philpem.me.uk/ | Tiger: Toshiba SatPro4600 Celeron700 > 256M+40G > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.392 / Virus Database: 268.5.6/336 - Release Date: 10/05/2006 > > For shafts, bushings and bearings etc in the UK try a company called Euro Bearings - http://www.euro-bearings.com/ Speak to Gerry and he will sort you out. I worked there for a while and one of the projects I was involved in was a giant CNC machine. Gerry will do you almost any length shaft at a good price :-) Dom -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist