Mendel Troubleshooting

I cannot figure out why my Z axis is binding.

If you remove the belt you can tell if one of the Z drive screws is more restricted than the other by feel.

Measure that your Z drive screws are parallel to each other. The X bar measurements in the spec make them a little longer than may be ideal. You may have = to loosen the 2 x-bar-clam-m4 on the motor end and slide the assembly containing the x-vert-drive-nut-trap toward the center of the machine . The x-motor-bracket-spacer does not fill the gap between the bracket the motor is bolted to and the next assembly.

The belt may not have sufficient clearance. If there are issues with the printed parts you may need an additional M4 washer or two with the idler bearings for the Z belt. The belt may be incorrectly routed.

The nuts may not be seated right in the x-vert-drive-nut traps.