20/30 Circular Friction Mount for GoPro

If you've ever tried designing a mounting component before, you've had to think a little bit about the compromises between using a durable, hard plastic like PETG or ABS and a flexible, rubbery plastic like TPU or TPE. Picking a hard plastic means that your tolerances must bejust right for the part holding your device -- too small and your device won't fit; too big, and your device device will fly out at the first sign of trouble. Picking a soft plastic means that your device can be cozily and safely encased in the embrace of a nice rubbery plastic, but your mount might flop around or worse -- tear or crack when put under strain. This component is designed to let you forget about that compromise and instead just use each plastic for the job it is designed for.

This is a mounting system that allows you to use a hard plastic like PETG or ABS for the durable mounting components, while using a flexible plastic like TPU or TPE for the part holding your device. It's based around a 20mm plastic pin with a 30mm flange that sits snugly in an inset in your flexible part, and a 30mm cup that the pin inserts into. When properly assembled and tightened, this creates a sandwich between the flange of the pin component, the flexible part, and the rim of the cup component, allowing you to have wide-strong attachment to your flexible part without sacrificing the strength of your mounting components.

I originally designed this for use with my Baofeng UV5R Mount, but do plan to use the same mounting system for a few other things, too.

Also pictured above: GoPro Handlebar Mount (M6 / Captive nut) (Not required)

Print Settings

Notes:

This model is composed of two parts:

• The "Pin" (inner, male)
• The "Cup" (outer, female)

and requires two extra parts:

• One 15mm M6 Bolt (up to 17mm will work)
• One M6 Locking Nut

The M6 locking nut is captive in the design of the cup, and introduces two challenges for you if you've never printed a part having a metal insert before:

• You'll need to ensure that support material is not generated filling the position in which the nut will reside. This is easy to do in Simplify3d, but I'm not sure how such a thing is accomplished using Cura.
• You will need to pause your print at the right time so you can insert the locking nut at the layerright before the nut is covered. The instructions for this will vary depending upon what kind of printer you are using and whether it is printing from an SD card or using a tool like OctoPrint, but you can find a variety of tutorial videos on youtube to help you solve this problem.

To assemble, in case it isn't obvious, you:

1. Insert the pin through the hole in your flexible part such that the rim fits into the provided indentation.
2. Place the cup over the protruding pin.
3. Insert the 15mm M6 bolt through the hole in the pin and tighten until secure.

Good luck!

Category: Hobby