cr-10 frame stiffener attachment

Simple addons for stiffening the frame. this pieces will allow to triangulate the frame using some bolts and a M8 threaded rod.

the objective is had in mind was:

1. As little machine modification as possible
2. As simple and slim as possible

there are 2 types of addons:

The ones that get bolted to the 2020 frame, use tnuts, (considered for me the best and final design), they work with a couple of nuts , one trapped and one out of the piece ( see image) there is one for upper side and one for lower side, the upper side has an angle of 26.2 deg and the bottom one 90-26.2 (63.8) deg.

The other ones are designed to be mounted in the outer part of the frame, on the side. There are 2 versions , the one for the left side and the one (mirrored) for the right side.

i include the fusion360 files in order to get people change holes for using smaller rods or angles for adapting this to S4,S5 versions.