I built this Robot Arm https://www.thingiverse.com/thing:1136876
When I move the arm it shakes, like it is hunting for the correct location.
If I tap the Arm I can get it to start shaking again and it won’t stop.
I am assuming the servo’s are cheap and not real accurate so they go past the proper location and then
the system tries to correct it self but goes past the proper location, so it constantly trying find the proper location.
I used SG90 servo’'s got 10 for $18.
I have ordered some MG90S servo’s they are about twice the price, so I hope they are better quaility and work.
Does anyone know of a good servo that is afordable, I guess I just really want a servo that works, whatever the price.
I’m trying to keep the price down so students in my class can build an Arm.
I read on the internet that it is very common to have a 10% defect rate for the cheap servo/s.
I’m not very good at using this site, I can’t find responses very well. My email is [email protected]
Thanks so much!!
Dan Hanson PhD PE