On 12 November 2012 11:32, Les Newell <[email protected]> wrote:
> I have been thinking about this for some time and a while back I came up > with a very different design to all of the others I have seen. First of > all, you don't need or want a ball screw on Z. Z doesn't need to be > hugely accurate. It needs reasonable resolution and it needs to be dirt > resistant. Are double-helical racks available? It seems to me that those would give good location in a number of degrees of freedom, and allow direct stepper control. (Google) I can't find any. It would be reasonably expensive to make as an injection moulding, though relatively expensive to hob. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_nov _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
