Insert the M5 nuts in the front and back feet.

The two lateral frame parts are shipped with an inserted threaded rod that strengthens the structure. For each lateral main frame, attach the front and the back feet. Make sure they are tight and in the correct position.

In this step you'll need to insert the M3 nuts in the indicated sites. Make sure you have inserted 4 M3 nuts in each frame. These will be used later to attach the z-axis motor and the bed runners.

Insert the M4 nuts in place. Screw the M4 screw just enough to hold it, do not tighten it.

Insert the top frame on the lateral frames. Make sure the holes are aligned in order for the M6 rods to pass freely.

Prepare the M6 210 mm threaded rods, the M6 nuts and the M6 lock washers and...

... insert them through the assembled parts as follows (left to right):
nut-washer-top part- frame part-washer-nut-nut-washer-frame part- top part-washer-nut.

Prepare the M6 180 mm threaded rod, the M6 nuts and the lock washers, the two small parts and the bearing.