Sand Spirograph

My sand spirograph brings math from your school desk to the beach.

**About the design:**
Modeled in Blender with the original Spirograph toy in mind that I used to have when I was little. I tried to keep the list of printed parts minimal by creating a two-gear system instead of a more complex scissor extension arm. A unique feature of my design is the guide wheel that supports the tracing gear to keep it level and from falling into the sand while still allowing the gear to rotate

**Assembly:** *(same for both large and small designs) See video for visual*
1.) Assemble the tracing gear with the tracing pins at any of the four holes into the top face of the gear. You may use any combination of the pinholes.
2.) Stack the base, guide wheel, and then tracing gear.

**How To Use:**
*Large sand spirograph*
1.) Find moist sand and make a flat surface with it. Sprinkle a thin layer of dry sand on the top for a more contrasting result.
2.) Place the sand spirograph on top of