<a href="https://www.thingiverse.com/Caster/about">Caster's</a> <a href="https://www.thingiverse.com/thing:2569379">CR-10
...显示更多 dual z axis with single stepper</a> remixed for the Ender 3.
+ The Power supply will need to be spaced out a minimum of 5mm to clear the bracket. I used 2 nylon spacers with fender washers on each side for stability.
Parts needed:
+ 400mm T8 Lead Screw and nut https://goo.gl/s4ayqE
+ 2 36 tooth pulleys https://goo.gl/FNHT1B (Note: these have a 5mm bore and will need to be drilled out to 8mm).
+ GT2 timing belt - approximately 800mm. (I simply cut some bulk belt at an angle and CA'd together to make a closed loop belt at the correct size).
+ 3 688ZZ 16mmx8mmx5mm ball bearings https://goo.gl/sJsbaQ
+ T8 Lead Screw Lock Collar https://goo.gl/FpFNzy (or do what Caster did and use a flexible shaft coupler)
+ My four thing files.
+ Caster's <a href="https://www.thingiverse.com/download:4177491">Z_axis_nut_retainer.stl</a>
+ Caster's <a href="https://www.thingiverse.com/download:4177492">Z_axis_nut_block.stl</a>
+ 4 M5 x 8-10mm button heads two each for the two blocks.
+ 2 M5 x 35mm button heads for the new bracket.
+ Possibly 2 M4 caps for the power supply depending on how far you space it out.
+ Bearing and nut retainers use M3 hardware.
https://youtu.be/Y-3BkdmjLs0
