Most sawhorses have the legs set out at 15º for stability. I decided to make the A-Frame legs splayed out 15º, and make that frame and the mono-leg splayed out 15º from each other. The idea was to make this as stable as it could be while still being a 3 legged sawhorse.
To get the length of the legs, you can use these equations
or you can just use this calculator
. I knew I wanted to make the sawhorse 30" tall, and I knew all 3 angles of the triangles (90º + 15º + 75º = 180º). For the single leg, I ran it through the calculator once and got a leg length of 31.05829"(31 1
"). For the 2 legged end, I used that result and solved for the hypotenuse again which gave me 32.15391" (32 3
). This number gives me the length of the compound mitered legs.
For a detailed blueprint, open the attached PDF.