Ultimaker buildplate 3 point levelling

thingiverse

To achieve a 3-point bed levelling with zero force platform release, follow these instructions. Drill a 4mm hole in the z-stage base plate's center, aligning it with the original cutouts' centers. Then, drill two 3mm holes at 10mm left and right from the 4mm center hole. Counterbore five millimeter tapped blind holes, 2mm deep, into the acrylic buildplate, one centered at the rear and another at +/-80mm from the plate's center. Use the tick's end to place these holes correctly. The hole's cone-shaped bottom must match the supporting headless screw's tip precisely. Finally, move the print head to the front left and right corners and adjust the platform height using the Ultimaker tool screwdriver. Lastly, adjust the rear center screw. You will need six M3 x 10 screws, six M3 nuts, three M4 self-locking nuts, and three M4 x 10 headless screws for this procedure.