On 25 March 2010 14:49, Mark Wendt (Contractor) <[email protected]> wrote:
> I'm not sure at this point. I'm not sure if the errors > showing up are cumulative or not. Not if they are due to backlash or microstepping nonlinearity. > Actually, I am looking for + or - > .001" accuracy on the strips I'm going to be cutting. That accuracy > will be the height of the triangular cross section of the strip. But that accuracy is needed in the Z axis, which you have already stated is spot-on. (I am guessing it is a ballscrew?) > On > the tips of some of the rods I make, I routinely hand plane down to a > .025" flat to apex height, and can usually hit that measurement > within a thou. If the machine can't do that in production, it ain't > gonna work for me. So, I need to make it accurate. I don't think any rack-and-pinion system will be accurate to sub-thou positional accuracy. However, as you are cutting a slow taper you need far less X accuracy than Z accuracy. -- atp ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
