CardBoard Rollercoaster

[DCA Fan]

use support structures along the bottom to maintain a smooth curve upwards, make a tear drop shape. cut small triangular portions out of the sides of the tube to make it easier to make a loop.

[Chaos204]

I cant tell you how much i appreciate all of your help so far. our first attempt was to take toilet paper rolls cut it longways into two halves we then cut relief triangles in it then we attached them to each other forming the required 8 inch diameter loop and then let it go in a very steep tube for the 7 foot drop and it didn't work... The frustrating part is that we should be able to do it but its just not working. i wish i could use things other than cardboard and tape.

Thanks a lot everybody, I know we need to be saving our brainpower for next week, but i really can't tell you enough how thankful I am. This really is what FIRST is all about.

-Jordan