Reverse: 1999 Cooper's Wreath Prop

A prop of Cooper's Wreath, a Borda repeating circle, mainly used at sea to measure angles for calculating longitude and latitude

I originally wanted to replicate the specific mechanical structure, but it was too complex and required very high precision; it's not just difficult, it's the kind of difficulty you could write a thesis about

Found a link to an image with specific details:

https://chsi.emuseum.com/objects/16783/bordatype-reflecting-circle;jsessionid=4CA9CF609471F9AD13923B7B132D937E?ctx=289f421d68a8237a933df4f90907b542b7d5832d&idx=0

Still missing a piece of fabric for the bottom left corner, don't have it on hand

Ultimately, it's just a simplified cosplay prop. Compared to EVA foam, 3D printing allows for more detail, so I simply added some scales and movable parts (though they don't have much practical use)

Based on research and visual appearance, a 30cm diameter would be more suitable, but my printer can only print up to 25cm, and I didn't want to cut it, so I only made a 25cm one