Yaesu FT-857 Portable Frame

Hi!

This is my frame for bringing my FT-857D out portable. It's designed to attach to the radio via the 4x M4 screw holes for the mobile bracket, and provide a bit of protection for the radio.

Main Features
* Provides bump protection; this is significantly enhanced with the use of some foam matting (see photos). 
* Provides protection for the rear cabling while in a rucksack- coax bends wont be squashed when setting the bag down on it's end. 
* Allows reasonable airflow/cooling. Note this is designed with the Scottish climate in mind, so YMMV...
* Deflects the audio from the speaker towards the front- and out of the open top of the rucksack. 
* Securely locates my N7DDC ATU100- see my other designs for this one. 
* Provides required fix points for cable ties. 
* Allows some room for expansion (i.e. for adding CAT/DATA interfaces) at a later date. 
* Allows access to the V/M & Lock buttons on the RHS, and 3.5mm headphone jack on the LHS.

STL files for slicing directly. F3D, OBJ, STEP also provided for tinkering.

Fittings Required
4x M4x8mm bolts and nuts (for joining the front and back sections of each side)
4x M4 bolts (for fixing the frame to the radio)
2x M4x12mm bolts and nuts (for fixing the rear bracket to the sides)

Print Notes

This just fits on the build plate for the Prusa i3MK3S+ in the following groups:
1: LHS front and rear sections
2: RHS front and rear sections
3: ATU bracket & Rear bracket

I used 0.3mm layer heights throughout. Infill was 20% grid for most parts, but for the ATU bracket i dropped this right down to 10%.

I used PETG for the final print for it's additional flexibility/durability. PLA for prototyping though (red/green parts in the photos are of my prototype prints).