At first I hoped to create 5 layers, but seeing as how I didn't want an ultra thick clock, I decided to do three layers instead, with the base 2 layers having 2 crescent type shapes etched or engraved. Each layer was 3 mm, by nature of the materials available.

PROCESS

My process was simple. I used Fusion 360 to create a circle, and then created 4 smaller yet still large circles and shifted them to create my crescents. I then free handed my figure fishing using various sketch tools in Fusion. My plan was for the fishing figure to be a part of the top crescent layer, but have their legs etched as to differentiate them. I then drew circles in the 2nd and 4th crescent from the smallest circle to add some designs using scoring and engraving. I made various extrusions to make making my DXF files easier. Below is the sketch of what I wanted my clock to look like, minus the extrusions or circle patterns.