This is an under-to-mid-sized butterfly shape with a 100% concave cup. Was trying to see if I could get it to an acceptable weight/inertia without making the hub pop out. Had to settle for an 8mm axle though. It landed on 52x52x63g.
I was also trying out an oversized but under-weighted butterfly shape that could take a slim bearing and do stalls. 60x42.43x64g. Not happy with the weight yet, would probably need to go more aggressive on the schmoove ring and just remove a lot of material there. Or, drop it from 10mm axle to 8mm.
Did a wide angle shutter in acrylic, not really a serious design, just to see how it looks. An actual design couldn’t get away with a 10mm axle and nothing else to hold it together. It’d need some brass in there kind of like the 3yo3 Acryllion.
yeah, no doubt. On the other hand I’ve seen some pretty crazy traditional press-fit ring designs, and I think those are more sensitive to runout/concentricity issues.
Yeah, the idea started as a metal d-bearing no-jive.
