Skeinforge Trick: Extra Base Shells

Colorbroken used a a neat Skeinforge trick to get a concentric patter on the bottom of this 120 Film Advance Crank. All he had to do was increase the “Extra Shells on Base Layer” in the Fill pane. Can you can count the rings to calculate how old it is? 🙂

 

The Skeinforge path

 

 

Colorbroken's result

 

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