On to the X axis, similar to the one we just did, just longer C Beam and lead screw etc.

• 2 X 40 mm aluminium spacers
• 1 X 1/4"? x 8 mm flexible coupler
• 2 X 8x16x5 bearing (688Z)
• 2 X 8mm shim
• 8 X T-Nuts
• 2 X 8 mm lock collar
• 8 X M5 20 mm bolts
• 2 X C Beam end plates
• 2 X M5 55 mm bolts
• 1 X Nema 23 stepper motor
• 1 X 8 mm lead screw 500 mm
• 1 X 500 mm C beam

Arrange in order

i added the leftmost (looking from the front of the machine (c side ) plate with the 4 20 mm M5's

add two of the T-Nuts on top side going up to the plate., they won't slide in after the Z gantry is added, the wheels block them.

add the Z gantry

add the lead screw, again knocking them down with sandpaper first so the bearings slip fit. On some of the lead screws the threads at the end are damaged so either use a die or a small file to take off the damaged ends of the thread so it can thread into the delrin nut lock

Add the bearing

add the lock ring, 8mm washer . round side towards bearing, flat side to bearing again. flush the lead screw to the end of the plate.

add more T-nuts, four on the back bottom slot, looking at the underside of the X C beam C channel is looking up, lower slots.

and then top side, add two more, so this is looking down at the C beam, C channel forwards.

add the lock rink, spacer again round side to bearing, and bearing

add the plate with the 4 20mm M5's

leave a small gap, preload the bearing into the hole and lock it down with the locking collar, careful how hard to tighten the set screw,

now tighten down the 4 20mm M5's on the plate, which squishes it all together and preloads the bearing.

Add the coupler, making sure it doesn't run on the plate.

add the 55 mm bolts to the Nema 23 motor.

add the 40 mm standoffs

screw them into place, and tighten the set screw on the coupler

Check for slop, and adjust as necessary, make sure the lead screw can turn and not too much preload on the bearings.

Another step complete