The next thing I started on was the motor mount. I decided to make the plate that the front of the motor screws into out of .125 carbon fiber plate. The hacker motor comes with two fiberglass rings. One appears to be a spacer and the second could be used as a mounting bracket although I think the design with wider spread ears makes more sense to me, so that is what I set out to make.

I started with a square of CF plate and drilled a center 1 inch hole which fits the Hacker very well. I think the actual diameter of the motor mounting flange is just under 1 inch. In order to drill the 8 holes for the mounting screws I tack glued the hacker supplied mounting plate to my plate using a 1 inch wooded dowl for alignment. A 3 mm drill or number 32 drill bit works well. Using a drill press the holes were easily placed.

Next was the layout of the piece I was trying to make. I started with a square which was 54 mm on a side. This gave me the approximate 2 3/4 inch measurment across the diagnal that I was looking for. I drew the outline with a circle tmplate and the 1/2 inch nylon stand-offs that will be used to mount the bracket to the nose ring plate. The spacing between mounting holes through the stand-offs is about 2 5/16".

The final shape was cut on a jig saw and a finished off on a drum sander.

In order to drill the plate mounting holes in the corners, I tack glued the nylon stand-offs in position and used them as a drill guide. The nylon standoffs are 1 inch long and will need to be cut to size once the nose ring is in place.

I actually made two mounting plates. The first was the smallest I could make with the nylon stand-offs just touching the spacer ring. I decided togo a little wider on the design for more support.