June 19, 2018
In
Techniques, Tips for Beginners
There are several ways to enlarge or “point up” from a model. It is best to use an even increment of enlargement (2x, 3x, etc.) to make the math easier.
(1) Use calipers and a ruler to transfer dimensions.
(2) Build a wire box around the model and use it to measure depths from the outside of the stone to the final surface.
(3) “Superimpose” your model over the stone by holding it a distance away until it “appears” the same size. Then you can mark on the workpiece where different things should be.
(4) Use a “pointing machine” which is an adjustable frame that can be moved back and forth between the model and the stone, drilling holes for approximate depths. See this for an example of pointing:
