Re: [CAD_CAM_EDM_DRO] Fine-pitch allthread?

Thank you Charles, JanRwl, Elliot, jjmefoam, Jeff and Marv (I hope I
haven't left anyone out) for your answers.

It was a bit disingenuous asking here, since it isn't strictly home-shop
related, and for that I'll take any lumps coming to me.

The application is in fine-adjusting an optical alignment by stepper motor,
but we want to do it on the cheap (thus, the "home-built" aspect even
though it's for quantity building...)

I had thought of gutting a cheap micrometer for prototyping, but Ball
Screws & Actuators in San Jose (as JanRwl suggested) does indeed make
allthread in pitches as fine as 1/4-80. I knew of them for leadscrews, but
was totally unaware that they made precision allthread!

Best regards,

Randy
Randy Gordon-Gilmore ,----.___________ ______________ _________________
ProtoTrains // = = === == || == == == = || == == == = == =|
Rio Vista, CA, USA /-O==O------------o==o------------o==o-----------o==o-'
zephyrus@... http://www.prototrains.com