Eryone Thinker Single Z Drive Conversion

thingiverse

The Eryone Thinker series has dual Z axis leadscrew motors and I have no issue with this it really produces superb prints. From an engineering point of view, a better idea would be to have a single Z motor and link the 2 leadscrews with a timing belt, thus making sure both lead screws stay in perfect timing. My solution links the screws with a toothed belt and is driven by an existing single stepper, replacing the other stepper with a bearing block, this will ensure the lead screws cannot get out of sync. All the parts cost less that £12.00 Print:- 2 x Eryone Thinker Lead Screw Top Block.stl 1 x Eryone Thinker Lead Screw Bottom Block.stl 3 x 688 Bearing Top Hat Spacer,stl Hardware required, all available on Amazon:- 2 x Aluminum GT2 30 Teeth 8mm Bore Timing Belt Pulley 1 x 8mm Shaft Lock Collar T8 Lead Screw Lock 5 x 688ZZ Deep Groove Ball Bearings Z2 8mm X 16mm X 5mm Double Shielded 1 x GT2 Closed Loop 6mm Width Timing Belt 800mm 4 x M4 20mm Slot Nuts 4 x M4 x 16 mm Cap Head Set Screw Optional : 2 x Z axis T8 Anti Backlash Spring Loaded Nut