Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

AT Switch

by atmakers, published

AT Switch by atmakers Mar 15, 2017
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Design Tools

Fusion 360


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This is a DIY AT Switch that provides a large activation area and a customizable activation force using various springs.

Switch "throw distance" can be controlled by shortening the stem on the button (either in the model or after printing via sanding). Activation Force can be changed by adding a variety of commonly available springs (from Ace Hardware or Home Depot) or by removing the spring altogether.

3 "keyhole" mounts are available to mount the switch to a flat surface. Other mounting options include using a 1/4"-20 adapter like this one: http://www.thingiverse.com/thing:2061248

Additional mounts including the Go Pro style mount shown in the pictures are under development and will be posted as separate Things. This file will be updated when they are available.

Follow the full guide here: http://atmakers.org/2017/03/3d-printed-at-switches-mark-i/

UPDATE: Added a version of the base with our logo on it. In the future I may just upload ones with the logo (we need to get the word out), but in this case I'm leaving the non-logo version up there in case folks have been planning on using it.

Print Settings

Printer Brand:



Creator Pro






.20 mm




Supports are recommended for the Jack mounting hole. Supports on the threads are optional (if your slicer supports removing them). There were no supports on the threads shown - notice there are some stray layers that will break off, but they will work themselves out when screwed into the bevel.

This prints fine in ABS and PLA, and should print in PETG (not yet tested) just fine. Mating parts of different types works fine.


This requires a small button switch attached to a 3.5mm jack. Full instructions will be posted at atmakers.org and this Thing will be updated.

How I Designed This

Designed in Fusion 360. The F360 archive file needs some cleanup but is available upon request.

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