@philippth said in Hypercube Evolution build question:
Thanks for all the replies, I'll add these to my considerations.
While thinking about the problem of asyncronised z axis stepper, I was wondering if you could set two additional endstops for both stepper motors at their max z position. Then you would have to program a macro that would go to the max z position and stop each stepper motor individually as soon as they hit "their" endstop. You could run this every time you power on your printer to syncronise minor differences and therefore could use two stepper without the risk of them bein asyncronised.
You could do it that way, or you could use the same approach used by Prusa. Set mechanical stops at the bottom of the Z axis that are placed so that when the bed support is in contact with them the bed is square with the Z axis, and when you power up the machine, run the bed to the bottom and a little beyond. The bed will hit the stops, the motors will stall, and will be synchronized. Then you can run the bed back up to the extruder to print. No extra hardware is required, just a simple gcode script.
