On 22 February 2015 at 00:17, Tobias Gogolin <usert...@gmail.com> wrote:
> I imagine that gear backlash can be measured and if its not captured by an > encoder on the geared down axis, it should at least in software be > considered for every change of direction. Is there such an option? > There is: look at BACKLASH or COMP_FILE in the INI config http://www.linuxcnc.org/docs/html/config/ini_config.html#sub:AXIS-section I have no idea if it works at all for non-trivial kinematics. I may on > my first printer also succumb the temptation to go with steppers maybe > overdoing torque such as with a fat NEMA34 instead of 17 or 23... > As steppers get bigger they get slower. Really quite a lot slower. A printer does not need a lot of force. I can't imagine any printer needing NEMA34. Most seem to use NEMA17... My first 3D Delta shall have a max. build height of whatever results from > 1 meter or 1.5m shafts, > ... But that's a big printer. One reply mentions the Ramps1.4 system; I wonder is the translation done > between linear delta motion control and Euclidean G-code, or is non > Euclidean G-Code used? > http://www.linuxcnc.org/docs/html/motion/kinematics.html -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
