⬢Place parts on the frame as shown in the picture. The small circular opening should be closer to the frame outer edge.
Note the frame orientation (PRUSA logo has to be visible).
All screws in this step are M3x10 (6 pcs).
⬢Use 2.5mm Allen key to tighten the parts to the frame. The screws must be perpendicular to the frame.
Tighten them gently, no superhuman force required.
Note: If you have troubles tightening the screws, try to place them on the other side of the frame to clean the thread. Then place them again from the previous side. Proceed with caution, or you might break the screw.