This is a y-motor-support for my new to build plexi-printer. (Plexi because I am going to make this printer from Polystyrene / clear Plexiglas).You can look at the pictures to see how it is meant to be used.It will be mounted to the back and to the right-side. In the right-back corner. About 80 mm from the top.The motor can be adjusted to keep the belt tension right. I will probably use a 160Lx6Wmm T2.5 timing belt.It will support a NEMA-17 motor.This object is designed to be printed without support with a filling of (for example 25%).You can look at the pictures to see how it is meant to be mounted.