Solenoids could definitely work. They might also be cheaper if I wind them myself. I might do that for a future version. Downside is that's more work to wind cu

Solenoids could definitely work. They might also be cheaper if I wind them myself. I might do that for a future version. Downside is that's more work to wind custom solenoids, which of course I could automate, but then that's more work to build the automation. Easier to start with small off-the-shelf DC gearmotors for now. Off-the-shelf solenoids are a bit too bulky from what I've found. (Although I don't have perfect knowledge of everything that's out there.) Linear actuators with DC gearmotors have more fine-grained positional control vs plain solenoids. But that could be fixed if I use a tubular linear actuator design that looks like a solenoid. [1] But at this point it's more important to get something/anything to a V1 and start getting real world feedback. [1]: https://youtu.be/3PLWTF_6odc https://youtu.be/3PLWTF_6odc