Hi i am buildn a ultimaker clone, but bigger...
Because of the bigger size i wanted to use 3 steppers on the z axis to avoid problems..
I thought if i use the 3 steppers it should be possible to auto calibrate the z axis using a proximity sensor..
I saw there is a options called auto leveling..
What proximity sensor to use? capacitive, inductive or ultrasonic - analog or digital?
The biggest problem with multiple steppers on the Z axis is keeping them in sync because when you first power up the machine, they will all jump to the nearest whole step. Some will jump forwards and some will jump backwards so after a number of power cycles, the problem will be exacerbated. For info, my bed weighs around 7Kg and is lifted using 3 screws but with a continuous belt and a single Nema 17 motor with 1:1 gearing.
Re: Triple stepper Z Axis
December 20, 2016 08:43PM
Registered: 1 year ago