10/09/2011
Since my order for wood still has not arrived, I decided to work on the flap hinges. I cut them from PCB material.
Here is the hinge dry-fitted to the top wing. I quickly realized that a single layer of PCB is not enough, and I will have to cut some more. The two hinge parts are joined with a nylon bushing and an M3 screw and lock-nut.
Here is the wing seen from the side. Yes I know the hinge-shape is slightly wrong. The vertical part should be more rounded, and the part to the left should be a bit fatter. I will clear that up in the CAD drawing and make a new set.
Beautiful design and build work. You have my attention!
May I suggest G10 phenolic or carbon sheet material for hinges instead of PCB.
Thank you Dennis
The PCB material I use is G10 with a flamability rating of 4. Same thing. Don’t like phenolic as it tends to flake. Haven’t tried carbon. It used to be a no-no because it is conductive, and caused radio interference when rubbing against each other. With 2.4GHz that should be a thing of the past. For the PCB I put a nylon washer inbetween.