Yishin Li wrote: >> >> Michael has provided us a spindle simulator for this purpose. It really >> > helps. > However, we still like to get a *real* one for rigid tapping ;-) > Oh, OK, I think by viewing signals in Halscope I could be pretty confident it is working correctly. But, in the US we have these cheap "mini mills" that are about 60 Kg and fit on a small desk. They have DC brush motor drives. I modified one to have an encoder on the spindle, and rigged a servo amp to drive the motor so it could be reversed by LinuxCNC.
Here are some old pictures of it : http://pico-systems.com/minimill.html I use this for demos of LinuxCNC as it is more portable than my Bridgeport mill! Maybe this is more work than you want to get involved in, but the spindle/head assembly could be used on some other machine, too. Jon ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
