3inch hole humidity dialer

thingiverse

Add a humidity dialer for your 3 inch holes. For use with plant terrariums and fungal monotubs or seed sprouting enclosures. V8 has a smaller hole for the axle that makes it spin less. But you need to ream the hole out yourself. V9 spins freely. I'm not sure what you'll want to use it for.. But if it spins too freely the mesh side will always be on the top due to gravity so instead of spinning the knob you'd have to adjust by spinning the mount.