This instructable shows how my friend Jared, my brother, and I built a cardboard canoe for his kids to play with in the swimming pool.
-Packing Tape - 1 1/2" - (lots(3 rolls))
-Cardboard - 1 sheet - 40" x 84"
-Utility knife (to cut the patterns out of the cardboard)
-Time (about 3-4 hours start to finish) (Not including CAD/Design/Snack time)
Step 1: Step 1: Design the Canoe
We've attached the canoe design so that you can print it out and scale it to however big you want the canoe to be.
We printed the shapes out on an 11"x17" paper and made a model (see pics)
The final kids' canoe shapes were printed out just shy of 8' long.
Step 2: Step 2: Get the Design onto Cardboard
We decided to scale the pieces up to fit on a 40"x84" piece of double walled cardboard.
We projected the shapes using a laser galvanometer and traced them.
If you have access to a CNC, you could use that instead.
If you have a large laser cutter, that would work.
**UPDATE** You can use a normal computer projector (like for doing a power point presentation)
**UPDATE** You can print out the pattern and use an overhead projector.
If you are a very good artist, you could just copy the pattern using that grid technique that only works for a drawing of Mickey Mouse.
You can use the pattern and have it printed out on a large format printer like they have at copy stores(Kinkos) and then cut patterns out of paper to transfer it to the cardboard.
Step 3: Cut Out Your Pieces
Use proper knife safety. Don't let your kids cut the cardboard. Don't cut any cheese during this step.