Required a lot of sanding on all faces to get it to fit. The screw unfortunately had some artefacts on the back side, probably an issue with my cooling, so it required some modification with a craft knife to allow it to fit into the thread. As the creator says, the screw is very tight and will loosen up a bit with patience. Did not print the toothed pulley, so reversed the right and left arms to provide a flat side for the original bearing. All in all it is working well.