Parametric Clam Gauge (metric or imperial)

Fishing action video! https://vid.me/JGd6

If the clam won't fit, you must eat it. Or something like that. Set the large hole to the minimum clam size according to your local regs, and then you can test the clams you dig to make sure they are legal. In my area, the clam is legal if there is at least one orientation that won't fit through the hole.

To make one, just click on the "Open in Customizer" button to the right, choose metric or imperial, enter the minimum clam size you are targe