DIYAT Switch V5 (microswitch, radial flexures)

thingiverse

This is a basic DIY Assistive Technology switch enclosure similar to the DIYAT V4 (https://www.thingiverse.com/thing:3062522). The main difference lies in the switch used in the enclosure. This version uses a mini-microswitch capable of switching five amps, unlike the fifty milliamp limit of V4. Even so, it's not recommended to go over an amp or two since 1/8" (3.5mm) audio phone connectors are not designed to handle power. The physical size of this switch necessitates a larger enclosure but is well-suited for higher current applications like motorized toys that have been switch adapted. Always be aware of the load current of your application and ensure it doesn't exceed the rating of your AT switch. This three-part enclosure (no screws) makes the momentary microswitch more durable and accessible by providing protection and a larger activation surface. Designed with OpenSCAD, this parametric design allows selecting the build diameter, base style (plain or strap mounting), and button style (recessed or protruding) using Customizer. Make sure the custom diameter setting matches each of the three parts saved to ensure they fit together. This version features a threaded latch and uses radial flexures for frictionless activation. Although it is frictionless, there is resistance from the flexures which increases the activation force slightly. Here's how the flexure works: https://youtu.be/2EqkSfG4u5U The DIYAT Switch is designed to be simple to build, durable, inexpensive (minimal parts), and customizable in size and style. This design is an assembly of three parts that fit together and must be printed with enough precision to operate correctly.