Gene wrote... >>>>>>>>>>I also don't know about the bearings, I'd think ball cuz sleeved stuffs usually have more end-play than could be tolerated in a spiral groove drive setup.>>>>>>>>>>>>
you might need to look at those motors carefully - some of them only had very rudimentary bearings in the front of the motor and relied on a simple steel ball sitting in a dimple in both the motor back bearing and at the end of the screwed shaft. A lot of the little 3 1/2" floppy disk motors now use the same technology. Have you considered using the innards of a mouse to make an encoder such as - http://tinyurl.com/3awsou ? A dead computer printer will probably give you a couple of usable motors but they are often only 48 step. -- Best wishes, Ian ____________ Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
