Thanks for the answer...

The keys have small rotators. Besides that, I thought about changing the tones (presets) which swaps the entire keyboard and sounds (within the synth) for another. this is already working as desired, but there is still this wall...

positioning some of these parts outside of the synth might be a solution for me.

I have only seen such a problem while building an elevator, since this is something that actually moves the player around. But, synthesizer... How does it even use moving parts? The thing that I would recommend to you anyway, in case you are talking about the collision of a rail part that seems too big, is to put rails away from the working zone. Moving parts don't have to be close to each other to work. You can just place your rail underground by 20 blocks, and it will still be able to move any object connected to it.

Wow. An interesting way to use screens.
I haven't even thought about that.

have you figured out a way how to avoid the collision with assembled objects? (more precisely: if you attach rotors/rails/stuff to a certain height, there is suddenly an invisible wall)
I'm currently building a synthesizer with 2 interchangeable tones... but this "wall" is annoying.

This treadmill's track is basically a screen with 20 diffrent parts changing each other in second (20fps) This is achieved by placing 20 pistons each made of 3 loop rotors in order.

I'm very interested in how you did the treadmill (rails and rotors?). Unfortunately, workshop objects cannot be loaded into the assembler.

Реально крутая вещь .