CAD a D4

The goal of this instructable is to CAD a D4 with only 1 parameter

Link to my object

CAD Software, I use OnShape as it is free

1. Make an equilateral triangle whose center is on the origin
2. Add your one dimension to say how big the triangle is
3. Add a construction line from the constrained point down along the "Right" plane
4. Make the construction line be equal (same length as) the side of the triangle

1. Make a construction circle whose radius is the length of the side of triangle
2. Draw a construction line up from the origin to the circle

1. Loft the base triangle to both the top point found

You now have a "blank" D4!

Feel free to add numbers to it or whatever else you want!