Cutting Can Tops for Solar Can Furnace

Very clever, thanks!

“Newfanler guy”

Hey! You’ve invented the electric can opener! )

Hey Lock,
Great idea! I tried the hole saw thing and it scared me to tears. Holding the can while the drill press spins so close to my hand was crazy! I tried your idea with just using the hand crank and it worked easily. I also tried to use it on the bottom and it was a little off angle but it worked. i had to adjust the ammount of pressure on the blade but it worked. I’ve been trying to figure an easy way to do this for months. What a simple solution! Your’e a genious!!!

Dude wouldn’t you have t turn your cans right side up where you cut them with your knife in order t get an effective turbulence thing going or does it really actually matter which side up your cans really are? Good idea with the can opener just wish the bottom part was that much simple t cut as well…

This helped tremendously. The only problem I had was that the gripper grooves kept digging into my cans – hence I had to squeeze lightly. No biggie, the holes get covered by the joining mortar later. Thanks for the idea!!!

Great idea! Thanks.

did you know that works on bottom of can also?leaves some teeth marks,but better to hold the caulk with.giver a try.

Thats what my neighbors think! Im wondering how much more efficient the fins are? It seems like would get better air flow without the use of an industrial sized fan.

wouldnt an electic can opener work?

smart use of can opener.but i prefer to drill,as to leave ledge on can for caulk.