I hope you enjoy creating bow ties using your Shapeoko CNC using the file that I have created. Please realize that this is only one method of creating bow ties. You may find better options out there using different methods and that’s great if you do.
I created the bow tie file to work with a 1/4" flat end mill bit. In this one file are two vector paths. The first path, the actual bow tie, is 1.364" x 3.001". The second path, the pocket, is 1.354" x 2.991". These paths are one over the top of the other in the same file. If you zoom in close enough you will see the difference between the two.
I exported two different two different GCode files by enabling one tool path and disabling the other, and vice versa. One thing you'll need to pay attention to is the depth for both toolpaths. Your material thickness will likely differ from mine.
When I placed the bow tie into the pocket it was a tight fit! I had to use a mallet to hammer down the bow tie. It is very important to drive down the bow tie evenly or you could reveal a hairline. I hope this information makes sense to you. If not, you should be able to figure out what's going on by looking at the file.