A motor mount is designed to rigidly support the motor shaft bearing (aligns motor to gears) and incorporate two bearing holding plates. The design has a thick front surface that is fastened to the shaft alignment part on either side of the motor shaft bearing, providing reliable alignment and stability to the motor. Two pins on opposite corners of the part serve to position the motor mount relative to the shaft alignment part. The hole and slot that accommodate these pins are drilled blind but are designed with generous depth tolerance. Fastening the motor mount to the shaft alignment part using two screws on the sides of the part (in addition to the fastener on the corner flange) avoids the excessive material removal that would be required to fabricate flanges for an entirely top-down assembly. The part is machined from a 1.5in3 block of aluminum 6061-T6. Fabrication of the part requires four machining directions and assembly requires four orientations.
