This post is in response to some questions I got about finding the length of the transition. This would be the distance from the flat to the coping. It can be found by using good old geometry and a TI-83 (or some other scientific calculator). See the below illustration explaining this process. A 5ft tall half pipe with 8ft of transition radius is used as an example.
Went over to Swift-Cantrell yesterday. Still just doing a lot of site work. Can't wait to skate!
Transition…the most import part of the half pipe. The transition is the curved section of the ramp that goes from the flat bottom to the deck. Getting this right is crucial because a transition that is too steep or to mellow will not be fun to skate and your half pipe will turn into a giant lawn ornament. There is no equation for the perfect transition radius, the best thing to do is to draw out several different radii in full scale and select which one looks best to you. You could even draw and cut a few out on some cardboard and compare it to some local ramps or bowls in your area. I used computer software to design mine, but I’m still going to draw it out and think about it long and hard before I cut it out. Currently it’s a 7 foot radius. The radius should always be bigger than the height of the half pipe and the larger it gets the mellower it will be.
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HOW TO DESIGN A HALF PiPE
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HOw TO BUILD a half pipe
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