If you are mounting this to the underside of your Z6 or Z7 you will need to align the plate so the heads of the anti-rotation plastic screws are against the edge of the camera body. This will prevent the disk from spinning. However, once you position the plate where you need it and start tightening the 1/4-20 machine screw, the hinge wing of the screw will interfere with the surrounding metal since it is already at the end of the slot. This interference causes the plate to move when you tighten the screw. One way to get around this is to position the plate so that the anti-rotation screws are not in contact with the camera body, but then the plate may twist over time. Another solution is to remove the folding wing from the 1/4-20 screw to create the necessary clearance. I wish the record was a bit bigger. I can try to design it for my Z6 and have it CNC machined out of aluminum but without the sliding center piece.
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