Alfawise U20 - Dual Z with top mounted stepper

thingiverse

Here is the rewritten text: Dual Z for U20 low cost. No change to firmware or settings. Electronics: Extend the four motor wires and pass them through the profile. Details: Motor Support: 2 x 5x30 screws for pulleys 2 smooth pulleys (not like on the image) 1 GT2 20-tooth / 6mm / 5mm axle pulley 2 printed spacers (M5x8 ep1.stl) or not 5 M5x8 screws plus 5 T-nuts (personally, I put the back ones and once in place, the top one) Motor fixation: 4 x M3x12 + 4 spacers Right side from top to bottom: Upper tige block for GT2-20.stl M3x20 screw + nut 1 GT2 20-tooth / 6mm / 8mm axle pulley 14mm spacer.stl M8x12 washer, 1mm thick Right support: 2 blocking screws for the bearing M3x4 and one M3x8 2 M4x20 screws + T-nuts M4 608zz bearing M8x12 washer, 1mm thick Lower tige block: M3x12 screw + nut Noix block.stl / The noix of the threaded tige / Support 2nd axle.stl / Noix support.stl We fix everything with 2 x M3x18 screws + M3 nut nylstop. Personally, I tighten and loosen by one and a half turns to recover the adjustment. We will block once the complete assembly is done. Left side from top to bottom: Upper tige block for GT2-20.stl M3x20 screw + nut 1 GT2 20-tooth / 6mm / 8mm axle pulley 14mm spacer.stl M8x12 washer, 1mm thick Right support: 2 blocking screws for the bearing M3x8 2 M4x20 screws + T-nuts M4 608zz bearing M8x12 washer, 1mm thick Required material: approximately 13€ - 1 x closed GT2 6 mm belt of 860mm (5.80€) - 2 x smooth GT2 6mm pulleys - 20 teeth / 8mm axle (1.06€) - 1 x GT2 5 mm pulley - 20 teeth / 5mm axle (0.74€) - 2 x smooth GT2 6mm pulleys - 20 teeth / 5mm axle (1.34€) - 1 x threaded tige + noix of 500mm (3.41€) Attention, this tige must have values in concordance with your existing screw. A savoir Vis T8 / Pitch of 2mm and a lead of 8mm. - 2 x 608zz bearing (0.47€) - 5 x M5x8 screws + T-nuts in M5 (support motor fixation replaceable by M4) - 1 x M3 x 4 screw - 3 x M3 x 8 screws - 6 x M3 x 12 screws - 2 x M3 x 18 screws - 2 x M3 x 20 screws - 4 x M3 nut + 2 M3 nylstop nut - 4 x M3 washer - 4 x M4x20 screws - 4 T-nuts M4 (2.83€ for 50) - 2 x M5 x 30 screws