Here are some simple instructions to make a Zero G Roll for those who need help. Zero G Rolls are elements which make a person travel directly in a straight line but roll over and dip up and down all at the same time. Enjoy:
Part 1:
Part 2:
Learn how to make knex roller coaster elements and more such as a loop, corkscrew or eurofighter lift. The instructions are free easy and you can also find knex guns on this site.
