Extrusion Feet Bumpers

Get the left and right feet mounts and stick on rubber bumpers onto the corners. Reference the photo for correct placement. 

Install Extrusion

Insert the two aluminum extrusion through the square holes in the left foot mount.

Insert an M4 slim t-nut into the profile of the extrusion with the top mounting hole lined up.

Fasten an M4 x 8mm into the slim t-nut. Do not fully tighten yet, just enough for the screw to grab onto the t-nut.

Install Carriage Assembly

Carefully slide the carriage assembly onto the two aluminum extrusions.

Ensure none of the wires are being kinked or obstructed by the carriage assembly.

The pulley wheels should fit into the profiles of the aluminum extrusion.

Install Right Foot

Fit the two extrusions through the square holes on the right foot mount. Reference the photo for the correct orientation.

Insert an M4 slim t-nut into the profile of the extrusion with the top mounting hole lined up.

Fasten an M4x8mm screw into the slim t-nut. Do not fully tighten yet, just enough for the screw to grab onto the t-nut.

Timing Belt

Gather up the timing belt, end caps and M4 hardware.

Cut the timing belt to length using scissors or cutters. The belt should measure out to be approximately 116.4cm (45in or 3.75ft) long.

Install Endcaps

Locate the left foot and get the left end cap.

Place an M4 slim t-nut onto the profile of the aluminum extrusion. Reference the photo for the correct location.

Slip the left end cap onto the extrusion with the mounting hole lined up.

Fasten to secure he end cap to the extrusion.

Repeat this installation process for the right foot using the right end cap.

Tighten Feet

With the left and right feet not fully tightened yet, begin sliding the feet over to be flush with the end cap.

Then, tighten the screws to secure the feet to the extrusion.

Install Timing Belt

Insert the end of the timing belt through the side of the extrusion where the timing pulley is located. 

Continue to thread the timing belt through the profile and under the pulley wheels.

Pull the timing belt over the 36T pulley that is secured to the stepper motor.

Keep the timing belt taught while threading to the opposite end of the extrusion.

Lock and Tension Belt

Insert the timing belt under the other foot and through the slit on the end cap.

While holding the end of the timing belt, pull the level to lock the timing belt in place. The lever should bite into the belt.

On the other end, pull the timing belt so its taught and proceed to pull the lever on the end cap to lock the belt into place.

Cut the timing belt to length if it's too long. Tuck any excess under the end cap so it's going inside the profile of the extrusion.

Connect Switches

Orient the slider assembly so the PCB plate is facing you.

Then, locate the quick connect cable that is attached to the left switch. Plug that cable into the JST XH connector labeled A2 on the PCB.

Locate the cable for the right switch and plug that into the A3 labeled connector on the PCB.

Connect Motors

Locate the wires from the stepper motor with the timing pulley. Connect those wires into the block terminal of the stepper driver with the label MOTOR 1.

• B- (blue wire) from stepper motor to 2B pin on TMC2209 
• B+ (red wire) from stepper motor to 2A pin on TMC2209
• A+ (black wire) from stepper motor to 1A pin on TMC2209
• A- (green wire) from stepper motor to 1B pin on TMC2209

Use a screwdriver to secure the wires to the terminal blocks on the stepper driver.

Repeat this process for the panning stepper motor with the wires connecting to MOTOR 2.

PCB Standoffs

Use M3 sized standoffs and hardware to secure the PCB to the PCB mounting plate.

Combine the 10mm long and 6mm long M3 standoffs to create a 16mm long standoff.

Create four sets of extended M3 standoffs.

Secure PCB 

Install the 16mm long standoffs to the corner mounting holes on the PCB mounting plate. Finger tighten the hardware.

Place the PCB over the standoffs with the corner mounting holes lined up with the standoffs.

Insert and fasten M3 screws to secure the PCB to the PCB mounting plate.

Power Plug

Grab the DC barrel from the battery holder and plug it into the DC jack on the PCB.

Use the on/off switch built-into the battery holder to power the circuit on.

The TFT display will power on.

Install Rotary Crank

Orient the 3D printed crank with the shaft of the rotary encoder.

Firmly press the crank over the shaft of the rotary encoder until it's fully seated.

Rotate the crank to turn the shaft of the rotary encoder.

Press the hinge of the crank to actuate the select button that's built into the rotary encoder.