On Wed, Jan 18, 2012 at 09:41:12PM +0100, Lars Andersson wrote: > I try manually while running: > > setp stepgen.3.position-scale 210 (it was was 200 before) > > This immediately gives a "joint 3 following error" even for a very small > change.
That's because the absolute position of A just moved by a lot. Let's say you've extruded for 1000 A units. The motor is at 1000*200. When you change the scale it suddenly wants to be at 1000*210. If you didn't get the following error you would have instead gotten 10000 stepper units of extrusion instantly to "catch up". > Can I work around this? You could put a gasket between the axis and stepgen to cancel out the error. I'm not sure how tricky that would be in practice. -- Ben Jackson AD7GD <b...@ben.com> http://www.ben.com/ ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
