Gearing Down the Arms

A project log for Big Delta 3D Printer

True Delta Kinematics. Now Bigger and Better.

Will ChurchWill Church 05/31/2016 at 00:080 Comments

The long arms in the delta mechanism amplify the quantization from the stepper motors, resulting in ridges on the surface of printed parts. To combat this effect and increase print resolution, we added 5:1 gears to the motors using GT-2 belts. The roughly designed prototype:

This modification was a total success, there is no discernible "ridging" from the motors anymore. The new mechanism in action (but out of frame).