I had the idea to build one of Andrew McNeil's antennas using CNC precision and thicker material than a PCB.
I asked him what thickness he would recommend, and he replied 1.5mm.
Here are some links to his stuff:
Instructables site: http://www.instructables.com/member/andrew%20mcneil/
Youtube Channel: https://www.youtube.com/user/8bitandrewmcneil/
Shop: http://andrew-mcneil.com/
His Patreon: https://www.patreon.com/user?u=2476215
I used his plans to draw up a design which would have a 3D printed support structure and CNC machined elements, and this was the result.
I'm not really 100% sure it works, or if its just assembly error. I ended up heating the elements and pressfitting them since the precision of my 3d printer isn't really cut out for aligning the elements.
I used 5mm threaded rods to bolt all the plastic parts to the reflector, this might have an effect on the signal, but I don't know.
Also have a feeling that the rounding that happens on the inside of the elements might not be ideal.
You want to print 7 or 8 pieces of 02-Spacer.stl and 1 of everything else. 8 if you don't print the part for the mount.
| BiquadYagi-2.4Ghz-AndrewMcNiel.123dx | 415.0KB | |
| Element.stl | 19.5KB | |
| Mount.stl | 876.8KB | |
| Reflector.stl | 201.5KB | |
| Spacer.stl | 241.3KB |
