Sequential shifter for sim racing

This is a sequential shifter for driving simulators. The shift feeling is imitated by two bearings following a track, preloaded with a spring. I think the bearing track come out really good, this is the kind of shifting feel that I wanted to achieve when I started this project.

In the video you can see how it works:
https://photos.app.goo.gl/fvwjAALshejXzDWe9


The bearing size is 15*10*4, like these ones:
https://www.ebay.com/itm/10-PCS-6700ZZ-10mm-x-15mm-x-4mm-Modle-Sealed-Metal-Shielded-Ball-Bearing/142522930988?hash=item212f07572c:g:X5MAAOSwb-Jcdjgk

For the spring you can use any kind, I also attached a printable one if you can't find a proper spring.

For the microswitches, I use these type:
https://www.ebay.com/itm/20Pcs-KW10-125V-1A-3-Terminals-Momentary-13mm-Lever-Arm-Micro-Switch-xh/223740877425?hash=item3417feda71:g:K8YAAOSwBLdZs4zu

Currently they are attached to the shifter with toothpicks, but it should be attached by M2 screws.


Required hardware:
10p