DaVinci 1.0 Adjustable Z-Axis Motor Mount

thingiverse

Printed at 0.2mm layer height with 50% infill for enhanced rigidity. Requires supports to ensure smooth printing. I discovered a crucial issue in my XYZprinting DaVinci 1.0 printer - if the Z-Axis lead screw hung loose from the build table, it failed to align directly with the shaft emerging from the Z-Axis stepper motor. Consequently, there was a misalignment between the location of the Z-Axis stepper motor and the Z-Axis lead screw. To resolve this issue, I designed a replacement mount featuring adjustable slots for left-to-right positioning and front-to-back adjustment to precisely position the motor directly under the free-hanging lead screw. As a result, the lead screw is now almost perfectly vertical, significantly improving print quality (Z-wobble reduced). This design works seamlessly with the screw already installed on the printer for the standard Z-Axis motor mount. Furthermore, I noticed that on the stock motor mount, when the lead screw spun, it exhibited wobble originating from the motor itself. This became apparent when pulling up on the motor mounting bracket in an orbital motion as the lead screw turned. I suspect that a bent shaft is coming from the stepper. To address this issue, replacing the rigid coupling with a flexible coupling may help minimize the impact of motor wobble on the printing process. Alternatively, swapping out the motor altogether could also be beneficial.