Playseat Challenge Bass shaker holders for chair and pedals

I made two bass shaker holders.
One bass shaker holder for underneat the chair of the playseat challenge (connected to an extra bar, see also my other designs for this extra bar connection)
And one bass shaker holder for the pedals of the playseat challenge.

I used M6 40 mm screws with nuts for the bass shaker underneat the chair and M6 20 mm screws with nuts for the bass shaker at the pedals

I used M3 20mm screws with nuts for connecting the bass shakers to the holders. The holes of the bass shaker were difficult to place correctly in the design. Therefore I used a 3 mm drill instead of designing holes for connecting the bass shakers.

I used a 30% infill to make it more sturdy.

This is designed for the Sounderlink 25 Watt bass shakers that can be bought on Ali Express.