Servo Tester Case by MakerDan55

Last crawled date: 3 years ago

I purchased the servo tester shown in the photo from the internet. It works well but requires a power source to operate which leads to more wires on my workbench that can get in the way. I built a case for this tester that lets you mount a battery pack inside so the unit is mobile.
If you want to build this, do the following:

Print out all parts. I printed the button and led covers in a lighter color (I found the leds in this unit to be extremely bright so I wanted to diffuse the light by making covers). I have included the 123D files so you can resize the switch openings to suit the switches you may have lying around.


Take apart the blue plastic case the servo controller came in and pull the circuit board off of the rubberized pad it is attached to.


I only need to test one servo at a time so I used a pair of wire cutters and cut off the top two rows of servo headers from the circuit board as shown in the photos (the top 2 rows also get in the way of the new case).


Glue in a battery pack to the bottom of the case and screw the circuit board to the top of the case using 2 small screws (make sure you first push in the "mode" button you printed off earlier).


Wire up the side switch to the battery pack and test it (when you turn on the switch, one of the mode leds should turn on. Test the mode switch to make sure the leds cycle through the modes.


I wanted to have a separate power switch that sends power to the servo only when you are ready to do so (switch on top). Attach a servo extension plug to the new case by feeding the wire through the case and soldering it to the servo header (at the same time, have the power wire for the servo go through the switch on the top).

Plug in a servo and test it out!
I sanded and spray painted my case to get rid of the rough plastic surface.