This post is about exploring the various architectural scales in geometry. It is to serve as an introduction to the subject for those who have never tried using an architect ruler before. In addition, there are some fun activities for you to try based on the examples. Blaha is one of the few American woodworkers who makes his living entirely from the crafts in which he specializes. That’s a pretty rare thing. He’s a carpenter who has worked on a wide variety of projects including carpentry, cabinetry, woodturning, furniture-making, blacksmithing, tool-making, knot-making, boatbuilding, and a host of other skills. Blaha is also a master craftsman with a phenomenal knowledge of wood.