For this step you will need:
- Two NEMA 17 stepper motors with rotary encoders
- Two horizontal motor housings
- Eight M3 x 12mm screws
- 2mm hex driver
- 3mm hex driver
Slide a motor into a horizontal motor housing, ensuring that the shaft of the motor is coming out of the housing and that the motor and encoder connectors are facing down through the open bottom of the housing.
Position the motor and housing onto the gantry corner bracket and attach it with four M3 x 12mm screws.
Slide a GT2 pulley onto the motor shaft and tighten the two setscrews with the 2mm hex driver. Make sure that the two setscrews contact the two flat areas on the motor shaft.
Repeat the above steps for the second motor on the other gantry corner bracket.
Attach six horizontal cable carrier supports to the back side of the gantry main beam using two M5 x 10mm screws and M5 tee nuts for each support. The supports should reside in the middle slot of the main beam extrusion and be equally spaced along its length.
Attach the last horizontal cable carrier support to the left-side gantry column using two M5 x 10mm screws and M5 tee nuts.