On Thu, 2009-12-10 at 14:53 -0500, Martin Pinkston wrote: ... snip > Squareness has never been an issue. I was amazed to find the head swept in > less than .0005. And even if the head is ever out, it's just a matter of > four very large bolt which hold the column to the base. Just shim to adjust. > Simple. When I checked the X and Y for squareness, I cut a square block and > then check the squareness of the product with a solid square. Ultra > precision is not needed in steam locomotive manufacturing. Average > tolerances is +/-.003 ... snip
Oops, my mistake, I'm getting my e-mail threads confused, sorry. The Z getting pulled into your work is a sign of significant backlash. In my opinion, getting rid of it is well worth the effort, especially with machines using servos. I wouldn't worry too much about understanding the electronics details. I was hoping someone could confirm or correct my thinking so that you could an idea of how much of these parts you might want to reuse with EMC2. My guess at this point is, that you can reuse the first board, the motor supply, and the last board/s, motor driver, and the I/O board by matching the EMC2 step/dir and I/O signals on your parallel port buffer card to your Centroid boards. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
