Servo Tester Case

thingiverse

I bought the servo tester shown in the photo from the internet. It works well, but it requires a power source to operate, which means I have even more wires cluttering my workbench that can get in the way. To make this tester more portable, I built a custom case that allows me to mount a battery pack inside. If you want to build one of these cases for yourself, follow these steps: First, print out all the necessary parts. I printed the button and LED covers in a lighter color because I found the LEDs on my servo controller to be extremely bright, so I wanted to diffuse the light by making custom covers. You can resize the switch openings using the 123D files I've included, which will allow you to use whatever switches you have lying around. Next, take apart the blue plastic case that came with your servo controller and carefully remove the circuit board from its rubberized pad. Since I only need to test one servo at a time, I used wire cutters to trim off the top two rows of servo headers from the circuit board. This also helped get rid of some unnecessary wires that were taking up space in my new case. To assemble everything, glue a battery pack to the bottom of the case and screw the circuit board to the top using two small screws. Make sure you first press the "mode" button you printed earlier into place. Now it's time to wire up the side switch to the battery pack and test it out. When you turn on the switch, one of the mode LEDs should light up. Test the mode switch to make sure the LEDs cycle through the different modes correctly. To add an extra layer of functionality, I wanted to have a separate power switch that only sends power to the servo when I'm ready to use it. To do this, attach a servo extension plug to the new case by threading the wire through the case and soldering it to the servo header. At the same time, route the power wire for the servo through the top switch. Once you've finished wiring everything up, plug in a servo and test it out! I sanded and spray-painted my case to give it a smooth finish and get rid of any rough edges. Printer Settings: * Printer Brand: Ultimaker * Printer Model: Ultimaker 2 * Rafts: No * Supports: Yes * Infill: 20%