Longboard Steering Stick System

A little project I built by myself for university.
This is a prototype, drivable but not safe!
If you want to make one, you may have to reconstruct or modify some parts because I designed it especially for this "globe" longboard.

In addition to the printed parts you need:
2x steel plates with additional cutouts
1x 12mm riserpad for the rear trunk
1x steering stick of a kickboard (no matter if fold-able or not)
1x aluminium or metal tube (bicycle handlebar), outer diameter 22mm
2x metal strips 60x15x1mm with two 6,5mm holes in a distance of 40mm

Screws and nuts:
1x M10 allen bolt, head is grinded down to a heigth of 3mm
1x M10 self-locking nut
4x M6 screws to hold the metal strips
4x M6 distance nuts 30mm height
4x M6 countersunk screws long
4x M6 countersunk screws short
4x M6 nuts