The goBilda servo programmer is sold as a simple electronics board with a foam backing.  This model is an effective case with buttons and even a "cap" for the slider.

goBilda Servo Programmer Case

Servo Programmer Case.stl

After putting the limit switches into the case, they were not being triggered at the same time.  This linkage will connect to both arms and effectively gang the two actuators together.

Double Limit Switch Linkage

Cover

This is the mounting plate for the Double Limit Switch Holder.  Since my printer does not do fine details well, I ran a hot pin through the case to hold the limit switches in.

Base Plate

Mounting Plate for Treedix Audio Jack Breakout Board.

Treedix Audio Jack Breakout Board Holder.stl

This is a mounting plate for this relay module.  This device is found at Micro Center.

Inland Button-Controller 1 Channel 12V Relay Mount

Mounting plate for the Adafruit Audio FX board.  This was designed for the version of the board with the audio jack.

Adafruit Audio FX Mount

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Dantourin

goBilda Servo Programmer Case

goBilda Servo Programmer Case

Double Limit Switch Linkage

Cover

Base Plate

Treedix Audio Jack Breakout Board Holder.stl

Inland Button-Controller 1 Channel 12V Relay Mount

Adafruit Audio FX Mount