Introduction: Backyard Roller Coster 2!

About: i am crazy and like things that r loud and go kaboom. i somehow taught my self how to fix computers and elictronicks. ime realy bad at speling stuf and somtimes act compleatly random....... cherful cealing fa…
READ THIS FIRST! since YouTube has been stuffing up lately i have uploaded a file that you can play on pc or mac, please use that or else it wont have sound! click here for it ---> HERE <---

 i am a 13 year old in New Zealand and i came across a video of someone who made there own roller coaster so i decided to make my own.
the track is 30 cm and 45 cm wide with 2 or 3 15 cm planks side by side 
its 65 cm tall at the start and has already been extended to 23 meters and still has about 5 meters to go but might stop here. 
it goes over 15 kph at some points and will end up going up to twice this speed when complete.
 it is still a work in progress and has had about 3-4 weeks of work on it
hope you like it
total cost FREE all wood and side rails came from under our house
YES IT IS A ROLLER COASTER AS IT ROLL'S AND COASTS 
and its better than some people who make these like a skateboard on a drive way 

ive had from 6 to 18 year olds try this out and almost all were suscesful (two people around 10-13 fell of the track but none hurt)

for those of you who want to make one here are some tips hings i didif you have something like a BIG HEAVY and fairly tall tree stump for the start is fine but make shure its stablewide or youl make it tip.
when your nailing the fence palings i use eather a pice of scrap wood for conections or a pice of fence cut smaller and put across the join (like tape!) and then nailed it.
for a small bump or hill make small lengths of track, join it and prop it up with bricks or logs.
so basicly if you can cut and nail wood and have lots of it its pritty easy.
try to make a light curve by making pices like this /| as spacers in between the joints but if its too tight eather lean hard or fall of the track.

DO NOT MAKE THIS ANY HIGHER THEN 1METRE UNLES YOU HAVE PROPER RAILINGS!
or it will hurt... real bad.
hope all gose well and please send me pictures or a video when your done.    
thank you for waching and reading.