Re-working a multi-colour design for cutting in multiple levels

as requested on support…

given the geometry:

which is set up with toolpaths which do not capture the various aspects of the design to best advantage:

we will walk through the various concepts and considerations here…

This is a classic problem of figure-ground reversal:

One concern is that the rounded outer contour doesn’t capture the sentiment of the design well. Removing them and then incorporating the inner contour with the pocket clearing option results in:

which shows the text and logo to good advantage, and captures the outer rectangle with crisp corners, but has lost the saw blade.

Adding that as a second layer requires that we draw up the tool and design in profile (or do a bit of trigonometry):

If we get the Boolean Intersection of the tool outline at the Max Depth and the stock:

OK

then we can measure:

to get the dimension necessary for inset:

(or draw a rectangle)

If we then inset by that dimension:

Apply

If we then remove from the selection what we wish to keep:

The extraneous portions may be removed:

Then select and duplicate the saw:

and then Boolean Union it with the offset geometry:

OK

Then shift-click to add the outer inset geometry to the selection:

and assign a V Carve toolpath which starts at the bottom of the previous toolpath and cuts to the desired depth:

which previews as:

Or, some other design choice could be made — notably the various elements could be pocketed out and filled w/ coloured epoxy, or an inlay could be done

One finishing touch would be to do a shallow V carving in the surrounding area:

And by adjusting the space in-between those rectangles the width of the V carving may be adjusted.

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