I like to square up the centering rings. When they are cut at the factory the blade makes a wedge cut.
It's not necessary to do this - I sand the ends flat for a cleaner build. I always flatten the bottom ring face if the ring is even with (and visible) at the base of the main airframe tube.
I also check the tube ends.
On 3" and 4" tubes, there's a bigger chance the tube might have a rough cut.
The 18mm motor mount tube is yellow.
Here's the instruction drawings for the 24mm mount. You are told to repeat the same assembly for the 18mm mount.
The thick orange rings were notched for the engine hook relief and the upper ring for the Kevlar line tie.
This is not mentioned in the instructions.
No comments:
Post a Comment