Start making the wheels supporting and driving the cable/rope biy drilling a 10 mm whole in the middle of the plate. You can use the markings left by the production of the plate (injection moulding) to find the middle. Next, each pair of plates is glued together bottom side to bottom side to form a pulley wheel. Apply hot melt glue to the bottom of one of the plates as shown in the picture) and without hesitation put the other plate on, using the center hole to align. Check the alignment of the sides before the glue sets completely and press.
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