Page Contents

Component list

Component Qty
Gantry Wheel Plate 1
Gantry Column 1
Gantry Plate Spacer Block 1
Idler Pulleys 4
Left Gantry Corner Bracket 1
50mm Horizontal Motor Housing 1
NEMA 17 Motor 1
20 Tooth GT2 Pulley 1
Electronics Box Subassembly 1
X1 Motor Cable 1
Seed Trough Holder 1
50mm Cable Carrier Mount 1
Barbed Adapter 2
Pressure Regulator 1
Solenoid Valve 1
Solenoid Valve Mount 1
Solenoid Valve Cable 1
200mm Zip Ties 2
M5 x 40mm Screw 4
M5 x 20mm Screw 4
M5 x 16mm Screw 4
M5 x 10mm Screw 16
M5 Flange Locknut 6
M5 x 14.5mm Spacer 2
M3 x 12mm Screw 4
60mm Nut Bar 5
40mm Nut Bar 1
10mm Nut Bar 6

Step 1: Mount the idler pulleys

Mount two idler pulleys to the gantry wheel plate using two M5 x 40mm screws, two M5 flange locknuts, and the gantry plate spacer block as a spacer.

Mount the other two idler pulleys with M5 x 40mm screws and M5 flange locknuts, this time using two M5 x 14.5mm spacers.

Step 2: Attach the gantry column

Lightly screw four M5 x 20mm screws to two 60mm nut bars. The nut bars should be loose enough to slide into the end of an extrusion in the next step.

Slide the gantry column onto the assembly, ensuring the cut end of the extrusion fits flush against the horizontal stop on the gantry plate spacer block. Then tighten the four M5 x 20mm screws.

Step 3: Attach the gantry corner bracket

Attach the left gantry corner bracket to the gantry column using three 60mm nut bars and six M5 x 10mm screws. The top of the extrusion should be aligned with the notch in the corner bracket.

The top of the extrusion should be aligned with the notch in the corner bracket.

Step 4: Attach the X1 motor

Insert the shaft of the NEMA 17 stepper motor into the hole in the center of the gantry corner bracket. The motor connector should be facing down, towards the gantry wheel plate.

Slide the 50mm horizontal motor housing over the top of the motor. The open end of the motor housing should be facing down, towards the gantry wheel plate.

Secure the motor and housing in place with four M3 x 12mm screws.

Slide the 20 tooth GT2 pulley onto the motor shaft, ensuring the two setscrews are aligned with the flat sides of the motor shaft. The pulley’s toothed area should be aligned with the large holes in the extrusion such that the belt can be routed through the extrusion without rubbing. Then tighten the setscrews.

The pulley’s toothed area should be aligned with the large holes in the extrusion such that the belt can be routed through the extrusion without rubbing.

Step 5: Attach the electronics box

Attach the electronics box to the gantry column using four M5 x 10mm screws and 10mm nut bars.

Step 6: Wire up the X1 motor

Attach the X1 motor cable to the X1 motor. Then route the cable behind the left side of the electronics box, under it, and up into the box through the middle hole in the supergland.

Attach the cable to the X1 motor connector on the bottom left edge of the Farmduino Express board.

Step 7: Attach the solenoid valve

Screw the pressure regulator onto the outlet of the solenoid valve.

Screw barbed adapters onto the inlet of the solenoid valve and the outlet of the pressure regulator.

Attach the solenoid valve to the solenoid valve mount using two 200mm zip ties.

Attach the solenoid valve mount to the gantry column using two M5 x 10mm screws and 10mm nut bars. The X1 motor cable should be routed between the mount and the box. The mount should be vertically aligned on the column such that the top barbed adapter is aligned with the top of the electronics box.

The mount should be vertically aligned on the column such that the top barbed adapter is aligned with the top of the electronics box.

Connect the solenoid valve cable to the solenoid valve. Then route the cable under the electronics box and up into the box through the third from left hole in the supergland.

Connect the other end of the cable into the WATER peripheral connector on the Farmduino Express.

Step 8: Attach the seed trough holder

Attach the seed trough holder to the gantry column using two M5 x 16mm screws and one 40mm nut bar. The top of the seed trough holder should be aligned with the top of the gantry plate spacer block.

Step 9: Attach the 50mm cable carrier mount

Attach the 50mm cable carrier mount to the gantry wheel plate using two M5 x 16mm screws and M5 flange locknuts.