The Mrs was horrified that I posted the pic of me
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I checked for backlash in the gears and found a tight spot at the time of building, which kind of threw me a bit at first, as the bearing seats against the shoulder of the bevel gear. Even so, there was still enough play to correct it. I would imagine this has caught a few people out that don't know about bearings. In simple terms the bearing had gone on squint, I call it toggling, which was a surprise to me It was very hard to see visually due to the white colour of the gear. The tight spot did it for me,which on spool up would have manifested itself as a massive vibration.