Promega Triple Z Axis modification

Modification to replace the original Z axis design with a triple leadscrew design, allowing auto tramming and true auto compensation.

This is an involved modification that requires good workmanship and accuracy if you want to gain all the advantages of a triple leadscrew design Z axis.

See the PDF for detailed instructions.

This requires a well tuned printer. There are images showing the best part orientation for printing. Everything prints without support, except where noted below.