How to Setup Co Print? Place Limit Switch at X Maximum Point of 3D Printer March 28, 2022 Featured Posted by admin 15 Mar The limit switch that comes with Co Print is the part that communicates Co Print and the 3D Printer by notifying Co Print of the filament change during printing. Therefore, it should be placed at 215 mm level on the X axis. (This value may change in the application where print files are being edited.) The hotend of the 3D Printer should be touching the limit switch as in the picture, while it is at 215 mm in the X axis. Otherwise, the 3D Printer will not be able to come to the level of 215 mm at the time of filament change and give Co Print the command to change filament.