smart: I'm building a mini ramp and am having trouble getting a good curve for the transition. The transition section is 5' long and 2' 6.5" tall.What is the best way to figure out the curve of the transition when building a mini ramp.?Lay our your X-Y on a piece of plywood, then get a thin strip of wood and flex it between the bottom and top and trace the arc. It helps to have somebody hold the top. I do this for curves on furniture projects. When I made a ramp 20 some years ago, I used r=x^2+y^2 to plot a grid.