Responding to a humorous question from another thread asking if the 8.2 oz saw/machete I made floats, I decided to see if I could actually make a saw that floats.
I weighed one of the UL saw blades I fabricate sans handle, and it came to 2.3 oz. I traced the outline of the handle onto some 1/2″ cork panel and cut and shaped it to make half a handle, then placed it into a container filled to the brim with water and collected and weighed the water displaced when it was fully submerged, which came to almost precisely 2.0 oz. The 1/2 handle itself weighed 0.6 oz.
Doing the math, a complete handle would displace 4.0 oz of water, and the 2.3 oz blade + 1.2 oz cork handle would weigh 3.5 oz. Figuring that glue and several coats of Plasti-Dip would weigh less than 0.5 oz I decided to go for it and made the second half of the cork handle, glued it, and sprayed it. And it worked!
