Ultrasonic Levitator Support

Tolerances are taken into account, shrinkage however is not.
Scale everyhting at 106%, the sliding arm at 108%.
I followed the instructions found here:
https://www.instructables.com/id/Easy-Acoustic-Levitator/
It uses only the arduino board to power the transducers, for greater output
consider using a boost converter coupled with a stepper motor driver.
The pin for the small gear is inserted with the gear by spreading the sides of the sliding arm, sorry, wanted to get this up and running, so after designing the base and sliding arm I got progressively more sloppy :)
Feedback is appreciated.

Also, if I there is something I can design for you, you can always drop me a line on fiverr:
https://www.fiverr.com/share/pdgm9N

I put together a short making-of here:
https://youtu.be/WZrFebASVJs
Also running on 10V through an H-bridge:
https://youtu.be/UxWEWeZ-GdU