prusa i3 Zonestar p802/Anet A8 z axis upgrade V2 by bunjatec

Last crawled date: 3 years ago

evolution of the previous version ( http://www.thingiverse.com/thing:1205037 )
but with the following improvements.
2:1 step down gear ratio for z stepper (2x torque to compensate for 1 less motor)
More adjust-ability in belt tension (3 motor mount positions, more range in fixed idlers and more adjustment for screw adjustable idler)
M8 rods to tie down top caps and the ability to triangulate to reduce X wobble.
For reference:
The M8 bolts joining the M8 connector blocks are M8x40.
The M8 rods are (I think) all 46cm long but you may wish to experiment with different lengths
suggestions:
I have not put an extra pair of m8 connector blocks half way up (where diagonal and vertical rods cross over) and this may improve x rigidity further)
Go slow when you print the M8 connector blocks, I had these pop off once due to the head hitting a curling overhang.