It is my understanding that in a grinding machine: 1 -- Cutting forces are low.
2 -- Backlash is generally not important. 3 -- Smoothness of motion is very important. I would suggest that before you worry about how to drive the components in slow motion, you should tell us how you plan to drive the components smoothly. What are you going to use for linear (for the linear axis) bearings and what will you use for rotary bearings? Stiction can be a major issue. Air bearings come to mind as a possible solution. Regarding the feed rate of .001 inch per minute and the distance of 12 inches. Am I correct in assuming that you would not be traversing that length at that feed? If that is true, what is the actual distance that has to be traveled at that rate for any given "pass. A simple mechanism to provide very high reduction ratios is the differential screw. It does, however, have a limited range of motion. It sounds like an interesting project. Do you have any sketches showing the general layout? Ken [EMAIL PROTECTED] wrote: > look design of harmonic derive. it is compact and small. you do not want > to have huge gear reduction box on the machines. space are limited too. > >> Is there some reason why simple worm and wheel drives won't work here - >> even two or three stages with backlash adjusted out? >> >> Ian >> -------------------- >> Ian W. Wright >> Sheffield UK >> >> >> ------------------------------------------------------------------------- >> This SF.net email is sponsored by: Microsoft >> Defy all challenges. Microsoft(R) Visual Studio 2008. >> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Kenneth Lerman Mark Kenny Products Company, LLC 55 Main Street Newtown, CT 06470 888-ISO-SEVO 203-426-7166 ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
