y-axis trolley

The Y axis trolley has to fit on both of the mounting rails and also connect to and avoid the timing belt. I have designed this so that it will clip onto the two rail bearings and hang there by friction and gravity. 

I left a space at the back for the timing belt anchoring point and for the belt return. I’ll adapt the belt cleat design to fit in this space. 

The other side of the trolley is blank at the moment. I will be able to mount the hot end and extruder to this.