At 7:25 PM +0000 10/23/04, vavaroutsos wrote: >Ron, I may have mis-understood what Chuck was saying, but I think he >is measuring the electrical resistance from the work to the spindle, >not the resistance to movement on the axis. This would require that >the work be electrically isolated from the mill or the probe be >electrically isolated. Things may have worked ok in Chucks case due >to the construcion of the mill not providing much electrical >conductivity from the spindle to the table, but I don't think this is >a valid assumption for all mills.
Yes, I was speaking of the resistance from the work table (and the work) to the spindle. The idea being that the electrical path from the table to the base, then to the spindle through the mount bearings (i.e. through the many joints) is going to be higher resistance than the direct path when the bit touches the the work surface. That change in resistance, though it might be small could be noticed by the software and acted upon. I would be interested to know what the spindle to table resistance is on a bigger machine. The reason I tried this is because I am just learning to use a dial indicator and wanted another check. :) -Chuck- 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/
