Inner Y Rail specific Y Motor Mount for NEMA 17 Motors

This mount is designed to be both the inner Y rail corner support and the Y motor mount. it bolts onto the inside of the two rear 20mm extrusions and the Y rail extrusion. The motor mounting screw locations are designed to be recessed. M3 screws with 8mm washers for the motor mount, M5 screws with 9mm washers for mounting to the frame

EDIT: the mounting holes for the NEMA 17 motor were too close to the back frame. moved them, works fine now.