Ender 5 Dual Z Axis support (single Z motor option with sync belt)

thingiverse

Dual Z axis support mod for Ender 5. Single Z motor option with sync belt and a simple belt tensioner. I aimed to steer clear of drilling any holes and shifting the electronic box towards the center or at the back. As a result, the mod is entirely reversible. Please note that the maximum print size after the mod will be reduced to X 230, Y 200, Z 285. The mod relies on off-the-shelf parts except for the bed support plate (attached CAD DXF, Freecad file and PDF with dimensions). I CNC'd my bed support plate but it can be laser cut/waterjet out of suitable material or you can remix my design to make the bed support a bit thicker than the current 3mm and 3D print the support. The bed support is sandwiched between the heated beds original support and the bed leveling adjustment screws. Parts to order online: 1. 1pc X Leadscrew with anti-backlash nut: Diameter 8mm, Pitch 2mm, Lead 8mm 2. 2pcs X Linear rod: Diameter 8mm, Length 390mm 3. 1pc X Bearing shaft support for 8mm leadscrew: Model KP08 4. 2pcs X Flange linear bearing for 8mm linear rods: Model LMH8UU 5. 4pcs X Linear shaft support for 8mm linear rods: Model SH8A 6. 2pcs X GT2 timing pulley: 20T W10 B8 (20 teeth, Width 10mm, Bore size 8mm) 7. 1pc X GT2 idler timing pulley: W10 B5 (No teeth, Width 10mm, Boresize 5mm) 8. 1pc X GT2 closed loop timing belt: Model 670-2GT (335 Teeth, 9mm width, Perimeter 670mm) 9. Aluminium V slot extrusions cut to the following lengths: a. 1 pc: 2020 x 330mm b. 2 pcs: 2020 x 100mm 10. 7pcs X 2020 corner angle brackets 11. Reasonable supply of T-slot nuts (M4/M5) and screws (M3/M4/M5)