I have not measured it but thank you for the reminder to do so Dennis as it may be undersized just enough. In all honesty I am leaning away from sanding because I am so bad at it.
Regarding stabilizing the blade, I know it is hard to picture w/o a picture but I am thinking that I would actually sort of sink the edge of the blade into the base I will create so it cannot move. Whatever I do I promise Rube Goldberg would be proud.
