I also plan to use rack and pinion for my setup if the cost comes out being worth it. I have been told to use the new 20 degree pressure angle rack instead of the older 14.5 degree. But I also have the concern of accuracy, I know it will be really good for Plasma and Oxy/Fuel, and on a 4'x4' router I am sure you would probably not even notice the error in a really big job like a house door or something, but PCB milling might be a differant story. Here is a neat web site showing how the gears work on a rack drive system, you need JAVA installed I think. http://www.brockeng.com/mechanism/RackNPinion.htm
--- In [EMAIL PROTECTED], "mlkpmiller" <[EMAIL PROTECTED]> wrote: > I once saw someone mention a rack and pinion drive for a long axis. > What kind of tolerances can this arrangement maintain? > > Mike Addresses: FAQ: http://www.ktmarketing.com/faq.html FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ Post Messages: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [Moderators] URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO OFF Topic POSTS: General Machining If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. http://www.metalworking.com/news_servers.html http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill List Mom List Owner Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
