Thrust bench

I needed to bench some coaxial motor setups, so I built this thing.

All you need is some M3x10mm screws, a 8mm shaft (can be a wood dowel or carbon tube), 16mm carbon tubes, Z608 bearings (2) and motor mount.
I use some TAROT RC 16mm clamps and custom carbon plates, but you can use any motor mounts that fits on 16mm tubes.
Drill the carbon tubes with 2.5 or 3/32 bit when in place (screws will lock in there).
This bench is made to be used on any scale that is 5 to 10cm high. The main mount