Mark4 GoPro mount

This model is similar to [this one](https://www.thingiverse.com/thing:6226279) or [that one](https://www.thingiverse.com/thing:5109128) but has the following difference: the distance between front bolts' centers is 32mm (check the sizes on the sketch match your frame).

* The model (the height of legs) is designed for GoPro bolt with round / symmetric handle (see the picture). For other bolts make sure that bolt handle is not touching propellers, for example [this one](https://m.media-amazon.com/images/I/61AuCEYRbWL.jpg) can cause troubles!
* Mind that the platform should be at least 4mm tall (see the picture of 3mm platform that broke into parts after drone hit the ground)
* The nut is hot-pressed into the model. For that put a nut leaving about 5mm of bolt in front, heat a nut with hotgun or matches and then melt into the model.
* You would need bolts M3×8 mm with cone head (default that come with frame) or M3×10 mm with cylinder head (they come with motors). On the picture you can