My last design went largely misunderstood. Nothing that a small animation can't solve...

My last design went largely misunderstood. Nothing that a small animation can’t solve… @Mauro_Manco and @shauki , this is for you. <3

admit i don’t notice oval wheels holes.

Actually, it’s working quite well as it is with 4 rigid corners. Even some slight mis-alignment errors can be absorbed by the current design. The “QR” technology is really good at keeping the whole frame rigid.