My 2dof motion office chair

Hello everyone. Unfortunately, the last year did not go so well for me,
so I still could not buy good engines. But I would like to do a few more tests
with the SMC3. Is it possible to change the used pins in the SMC3?

Hello everyone, it took a while, but now I want to start upgrading my Sim.
But before I get started I have two questions.

First one is:
In your opinion, which is better, a self-locking worm gear or a non-self-locking?

Second one is:
I´ve searched the web for hours but it is very hard to find a seller in Germany,
where you can purchase usable motors.
Is there someone here from germany who has found a seller in germany?

hello, if you want I can sell you my old engines. I also come from Germany.
here you can see the engines:
https://www.xsimulator.net/community/threads/my-6dof-with-diy-actuators.12360/page-2