Ok so I have to make a cardboat boat for a class, it has to carry (2) people and you can only use cardboard and duct tape, nothing else. The boat will be paddled in a pool with no choppy waters or anything. Anyone have any good tips or tricks? i'll scan my original idea in soon.
Any uber tips for making a cardboat boat?
- Thread starter Joony
- Start date
shouldn't be too hard.
A recommendation for you: Cover the ENTIRE outside with ducttape.
Otherwise it will get soggy and disentegrate. You know duct tape was orginally 'duck' tape, used in WWI by units that saw lots of water because it was designed to repel water like the back of a duck.
They didn't call it that for nothing, put it to good use.
A recommendation for you: Cover the ENTIRE outside with ducttape.
Otherwise it will get soggy and disentegrate. You know duct tape was orginally 'duck' tape, used in WWI by units that saw lots of water because it was designed to repel water like the back of a duck.
They didn't call it that for nothing, put it to good use.
uber tip #1: it should float
uber tip #2: it should not sink immediatly
uber tip #3: it should have lasers
uber tip #4: it should torpedos
uber tip #5: it should fly
uber tip #2: it should not sink immediatly
uber tip #3: it should have lasers
uber tip #4: it should torpedos
uber tip #5: it should fly
displace as much water as possible.
basically do some physics and find out how much area you will have to cover in order for you and your friend to not immediately sink.
MIKE
basically do some physics and find out how much area you will have to cover in order for you and your friend to not immediately sink.
MIKE
regular cardboard only, it has to go back and forth through the pool once. (about 200 feet total)
Any readily avaliable formula to figure displacement?
whats the best brand of duct tape that I can get at like home depot?
Any readily avaliable formula to figure displacement?
whats the best brand of duct tape that I can get at like home depot?
just take a cardboard box, COMPLETELY cover it in duct tape so it is air tight, then sit on it/attach something to it to sit on. a big box of air is very bouyant.
Create your design by cutting and folding paper, then scale it up to the proper dimensions for two people. A flat bottom will displace the most water, but is the most difficult to control.
Make it widdddde. I'd say have it look more like a rowboat than a canoe. Problems I could forsee:
thing getting soggy and falling apart, LOTS of duct tape inside and out.
Structural rigidity/being able to withstand you 2 inside. This is important. Make sure that where your bum bum goes and where your feet go there is a lot of reinforcment. Gotta make it strong enough that if 1 of you leans to 1 side it wont collapse. Take pics of your finished boat! I wish i got to do this in class
Buy CHEAP duct tape. That stuff is expensive, getting some 4 dollar a roll stuff is gonna put you in the poor house.
Oh, you could always cheat? That'd be cool.
thing getting soggy and falling apart, LOTS of duct tape inside and out.
Structural rigidity/being able to withstand you 2 inside. This is important. Make sure that where your bum bum goes and where your feet go there is a lot of reinforcment. Gotta make it strong enough that if 1 of you leans to 1 side it wont collapse. Take pics of your finished boat! I wish i got to do this in class
Buy CHEAP duct tape. That stuff is expensive, getting some 4 dollar a roll stuff is gonna put you in the poor house.
Oh, you could always cheat? That'd be cool.
Yes. Multiple layers on an already sturdy base. Make sure the layers overlap and are as flat as possible. Air bubbles are cause for seepage.
Seeing as you are making this from two very flimsy materials I would make sure to make it as triangular as possible for added sturdiness, and layer up the cardboard too, either in all areas you won't need to bend or after you have it assembled.
If you want some help on cardboard structuring, go to a local fast food joint and ask them if they have any left over boxes from the soda. These boxes are roughly 18x9x6, with about 1/8 inch cardboard... and can support a 200 pound man without any more than a dent.
He's smart!
or take some 55 gallon drums and cover them with cardboard and duct tape
Then electrify the drum so if someone goes to inspect it they have a seizure and die.
This would actually be a good start if you could come up with like... a refridgerator box and slice it in half long ways. Then layer up the cardboard, and some support joints and tape it to all hell.
What you have to realize is that while you need to support your weight in the boat, you also have to support the weight of the water pushing against the sides. If a long edge of cardboard gives way to a bit of water and bends in, it may start filling up fast.
Is there a limit on the thickness of a cardboard? If not, sandwich two layers of corrugated cardboard with a pleated layer of corrugated cardboard between. (for the bottom)
displacement = volume of boat that is beneath the water line.
The max capacity is figgered like this:
Find out the max amount of water your boat will displace if you push it down and down and down. Then figure out how much that water weighs. That weight is the max weight for your boat with you and everything else in it.
So, make it have as big a hull as possible, while still retaining a basic shape that makes it move more easily forwards than, say sideways (read: longer than wide).
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