Motors and Movement - Printing in Plastic: Build Your Own 3D Printer - page 210

• Qty-12 #6-32 x 1-1/4” (or 1-1/2”) machine screws

• Qty-12 #6 nuts

• Qty-12 #6 washers

• Qty-2 belt pulleys

• Qty-2 belts

• Qty-1 Motor collar

• Qty-1 Motor mating piece

• Qty-2 Threaded Rod, 13” length x 1/4” diameter

• Qty-4 #8-32 x 1-1/4” machine screws

• Qty-6 #8 nuts

• Qty-2 metal brackets (a.k.a. mending plates)Home Depot part#339-482 for
attaching belt for Y-axis

• Optional: Qty-4 of the metal brackets in lieu of screws/washers/nuts for attaching
belt to X-axis Strong-Ties

• Qty-2 #8-32 machine screws, 1” length

• Qty-8 #8 washers

• Qty-4 fender washers (optional)

Adding the X-Axis Motor and Motor Mount
The X-axis motor will control the forward and backward movement of the Table (Part C). The motor will
sit underneath the Table and use a nylon belt and notched timing pulley to control the movement.
Figure 13-1 shows the three stepper motors that will be used to control the X, Y, and Z axes. Each
axes has its own motor mount; a motor will first be attached to the motor mount and then the motor
mount will be added to the 3D printer body you've assembled so far.

■ Note You can purchase these types of motors with or without wires already attached, but we recommend that

you buy them with the wires already attached instead of soldering wires yourself. If you buy motors without wires,
you will need to solder wires to the motors or use another method for attaching the wires.