Anycubic i3 Mega 3 point bed levelling

thingiverse

Inspired by the design of Gulfcoast Robotics, I created a simple three-point levelling system for the i3 Mega. For now, it's just an experiment as the part is printed. Print in PETG and don't use it with bed temperatures above 70-80c. I haven't printed with this yet, so I'm unsure how the petg will hold up. Do not print this in PLA! It will be very easy to make this part in metal or aluminum. I'll add a cad drawing for this later. It's just a strip with two M3 holes 209mm apart, and one M3 countersunk hole in the middle. Here's how to use it: Print the part. Remove the heated bed from the y carriage. Attach the printed part to the y plate (left or right side), put some screws through the outer holes. It now only serves as a drill jig. With a small drill (2,5mm) use the center of the part to drill a hole in the y carriage. Remove the printed part, and drill out the hole with a 3,2mm drill Remove the M3 nuts and washers from left or right side of the ultrabase bed Put an M3x30mm countersunk screw in the center hole of the printed part Now attach the printed part to the ultrabase bed using the M3 nuts and washers again Don't remove the M3 screws on the corners just in case you want to revert to 4-point levelling. Put the heated bed back on the y plate, only using 3 springs and adjustment nuts. Good luck, and let me know how it works out for you. My i3 Mega designs are available in this collection: https://www.thingiverse.com/bartolomeus/collections/anycubic-i3-mega