CNC Brain is ready! 6-axis Double Closed Loop Controller

[minimum]

Originally Posted by dgapilot I've read almost this entire thread and couldn't find an answer to my questions, so ... Will scales similar to these work for the feedback loop? http://www.mitutoyo.com/TerminalMerc...spx?group=1298 These type scales are quite reasonable on Ebay, see http://cgi.ebay.com/DRO-0-6-Y-AXIS-V...QQcmdZViewItem Thanks, David

In short (as I understood), NO!
The data refresh rate from the scales is poor (comes in bursts) so there's no way to use these (or at least with good results).

Besides, Mitutoyo and cheap Chinese scales use different data protocol. Shumatech who sells DRO kits for Chinese scales, has a brief description:
http://www.shumatech.com/support/chinese_scales.htm

[macona]

zLike minimum said, nope, these wont work. You need scales with a quadrature output. Heidenhain, RSF, Anilam, Acurite are big names. You can find scales pretty cheap on ebay.

There are also a couple chinese manufacturers out there as well.

[ger21]

I copied this thread to the controller forum, and am going to close this one in the Product Announcement forum. Please continue further discussion here.
http://www.cnczone.com/forums/showthread.php?t=64794