Inlays can be used to create a dramatic look on a flat surface. Like many issues with
designs for carving, the difficulty comes from needing to carve out shapes using a
round bit. I’ve talked before about “the inside corner problem” and about visualizing the problem to create more carvable designs. Now I want to show you how to create inlayable designs, compensating for the bit size.
Here is the effect we are going for:
Anatomy of an inlay
An inlay project has two kinds of parts:
- The insert: the piece(s) cut entirely out that are layed into the…
- The pocket: the depression carved into a larger piece that the insert fits into.
Let’s take a simple design to illustrate the core problem. The simplest approach would
be to take two copies of a single shape, carve inside one to make the pocket and
carve outside the other to make the insert.
The red dot is the bit. Because it is a circle, it cannot fit into inside corners of the design.
And which corners are “inside” is different for the pocket and the insert!
You end up with a different shape for the pocket and the insert; they will not fit together.
The solution is to create a new design that compensates for the rounding of the bit.
This is exactly the process the Inlay App in Easel does to create an inlayable design!
Give it a try.