If people can go in, and the energy is enough, use the three meter of the bottom, please do it, all the wooden frame, and use the canvas tailor. 1. First make a triangle, the bottom is 1, the ratio of the two ramp is 0.95, which is the proportion of 1: 0.95. 2. After tailoring four triangles, come back together, stick it, it will become. 3. The bottom can be used to cut a quad type, make up, and more complete. This is a way to steal steps, but the proportion, the angle is already very close.
