Thanks to Billie I realized I really am a hot wiring wanna bee.
I got a massive block of foam at a plastering supply company in Reno. They had a very cool hot wire setup that really left me feeling inadequate, I know I'm a good person and great father and all that, but even their foam rasp made feel like a rookie. I really feel like I could be a good foam cutter too!
I fried my 24v doorbell transformer with dimmer cutting blanks the other day. Next I used a 12v led dimmer with a 7$power supply I had to replace it. Man I broke a bunch of wires figuring out how slow to cut with the new one.
Cutting formica templates ,however, was a breeze,with reading glasses.. These ones are a bit too skinny and fragile though. Sharp scissors got pretty darn close , followed by sanding to 400 and a pencil lead lube.
Ever since I started building hydrofoilses I've been working with airfoil templates that I already had on hand, actually selected for RC discus launch gliders. Before making a mold, I would build up layers until i achieved the dimensions I was after. I am sure this distorted the profiles significantly, good or bad.
I decided to try some profiles selected specifically for my new needs, hydrofoils., and also fabricate them as accurately as possible . I have always been looking for a quick and dirty way to make molds , Billie supported this notion. The foam wing beds may well help , After some hours of tinkering, I see a couple simple building techniques trying to reveal themselves.
Have a look kooks.
It took a bunch of tries, but I did get some very accurate ones!
OK you guys try