Help - Fubata S3004 and Servo testers vs. rotational range

Help & Support Robot Parts
1

Hi guys: I’m trying to help some kids with some robotics projects. They use a VEX controller for their robt but I wanted them to be able to test mechanisms they use servos with without having to connect the full control system.

So I purchased a couple of the inexpensive servo testers like the Turnigy. Those work fine except they only rotate the serv0 about 70-80 degrees. I thought the regular, unmodified Fubata’s would move 180-200 degrees.

I don’t know the pulse width range of the little servo testers.

SO 2 questions…

  1. Will the Fubata S3004 turn 180 degrees? I read in an article on-line it would go 200 degrees with a pulse width of 800us to 2200 us.

  2. Whats a good servo controller I can use that will output the pulse width I need to get the full range?

Thanks!
Scott

2

We tested the servo using the GWS Multi-Tester and saw it rotates just less than 180 degrees (from 500 to 2500us). Most servos won’t accept anything below 500us, so the GWS tester is a good choice.

3

Thanks Coleman.