2015-02-21 15:16 GMT+02:00 Tobias Gogolin <usert...@gmail.com>: > I am suggesting small geared brushless motors
Gearing will introduce backlash. Linear delta machine may have end-effector vs actuator travel ratio up to 2:1, depending on rod length vs delta radius proportion, so any backlash in actuator means even larger backlash on end-effector. Take all 3 actuators, add together their backlash and you might have difficulties to achieve desired positioning accuracy for hotend. I would be tempted to go the traditional way of mounting belt pulley right on motor shaft - tuning feedback loop might be challenging, but once that is done, the machine can be very very fast... Viesturs ------------------------------------------------------------------------------ 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
