Printable Gauge to set the plate - for Prusa Mendel

thingiverse

To quickly level the plate, use two indicators. One indicator's 1 mm tilt equals 0.17 mm height adjustment. You can set the height with precision up to 0.08 mm. Start by printing and assembling the arms of both indicators using two nuts on each screw. Note that the lower arm has slight movement. Both indicators must show the same value and be calibrated. Install one indicator on the X axis and adjust its height until the arms are parallel. Mark the level of the arm and remove the indicator from the X axis. Repeat this process with the second indicator in the same position. Now, both indicators should show the same height. To level the plate, install both indicators at opposite ends of the X axis and move the Y axis to adjust the Plate's height at its corners. Done!