2020 Kossel Delta carriages Minimalistic with solid v wheels

Spacing front centerline to the bearing hole is 20.25mm. I experimented with different dimensions for fit. The design of the carnage allows the arms to bend slightly keeping tension the rail. The bearing hole is for a 5mm bolt and between the carriage car and y-style carriage are 2 - M3x12 bolts.
There is minimal play if you physically grab the car and twist and zero play when the machine is printing.

Just wanted a clean minimal design.

They print fast so can always be changed out if they