Any one got any plans to fabricate one? If not would anyone measure one for me, most of them seem to go like this:-
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but before I make one and find it's pretty useless I'd like to get an idea as to the best angles and the length of the three surfaces. I'm guessing that the the longer the first section, the better the approach ground clearance, but the longer that is the steeper the second part has to be!
Thirdly and finally, perhaps someone has one they want to sell to me for pennies, I missed out getting one at sodbury this weekend, I think the rain damped everyones spirirts a little :-(
Thanks
Matthew