Stage 02: Top

Fix the four metal brackets to the sides of the top panel.

Bracket

M5 x 3mm Spacer

M5 x 16mm Button

M5 Nyloc Nut

Do not tighten yet, leave the bracket fixed loosely.

Make sure the bolt on the bracket is facing outwards and away from the centre of the base panel.

Install the two idler assemblies onto the rear left of the top panel as shown.

M4 x 18mm Button

M4 Washer

M4 Penny Washer

624zz Bearing

M4 Nyloc Nut

Install the two idler assemblies onto the rear right of the top panel as shown.

M4 x 30mm Button

M4 x 12mm Spacer

M4 Washer

M4 Penny Washer

624zz Bearing

M4 Nyloc Nut

Install the two idler assemblies onto the front of the top panel as shown.

M4 x 30mm Button

M4 Washer

M4 Penny Washer

624zz Bearing

M4 x 4mm Spacer

M4 nyloc Nut

Note, it's a little hidden in the photo, but there is another M4 washer between the panel and the top penny washer.

Install the two 0.9 degree stepper motors to the rear of the top panel as shown.

M3 x 30mm Cap

M3 x 25mm spacer

Orientate the motor so that the cable header is pointing towards the idler assemblies.

Double check it's the 0.9 degree motors that you are installing. 42BYGE2205

Use an oversized drill bit to carefully clear any burr left over from the threading of the rail mounting holes.

Remove a rail from its packaging and move the red carriage stoppers in one hole space.

Secure the rail to the top panel as shown with five M3 x 6mm Cap bolts.

Repeat the process for the rail on the other side of the top panel also.

Make sure that the carriage never falls off the rail.