Brief Description: Prop Spinner 7 - Marking for Screws
Here is another step that I pondered on for a bit. You need to drill holes around the spinner in two different areas. They need to be spaced equally.
I ended up using some light cardboard as a pattern. I taped it on the spinner in line with the backing plate. Then, I layed it on the table and measured where the holes should go. I taped the pattern back on the spinner and tranferred the marks. I used a square to line the holes up exacty over the center on the backing plate.
