Throttle lever - using a cheap servotester

This is a big throttle lever for those small&cheap servo testers
Just fwd movement supported..
Designed this for accurate testing of my Jet-drive-motor / wired speed control of my Kayak.

I used some M6 nuts'n'bolts, some 6mm (softair) balls , as well as some M3 bolts and maybe, some glue.
(Update 20.02.21 )

first tests .... https://youtu.be/yehrLsuC8iY