H pattern sim shifter table clamp remix

https://youtu.be/4EvM2tOlZpw

I made a new design for the table clamps, the original ones where useless.
I used as inspiration wood clamps, so the PLA is used in compression and the force is taken by an 8 mm threaded rod.

I also made an 8 mm to 5 mm adapter, so that 5 mm screws can be used for the lateral movement.