Part list

• 4 X 90 cast corners
• 4 X M5 10 mm bolts
• 4 X T-Nuts
• 1 X 500 mm C Beam (from before)

install the corner brackets with a T-Nut and 10 mm bolts on the C Beam

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

install left side mount plate with 4 M4 20 mm

I found it easier to install the lead screw with the gantry off the C Beam

install the bearing, add the washer round side towards bearing, and the lock collar, fit it all in, flush the lead screw

install the other side now

leave a small gap on the mounting plate, don't tighten the 20 mm M4's all the way

push it all together, lock the collar and then tighten down the plate so it'll preload

Add the flexible coupling, leave a small gap away from the plate

add the 55 mm bolts to the motor, add to 40 mm spacers

wire going out this way

and install the motor and tighten the coupler

And its all together