Remixed from 22steve22's design (couldn't be bothered to create the teeth myself so I stole his!)
Designed to replace the rudder cleat on the feel free lure but will fit other models too. After a year or two of use, the teeth on my original started to strip so I made this to replace it.
It takes a little bit of messing around with settings to get the teeth to come out perfect but well worth it.
Mine was printed in ABS other materials should be fine, print 0.1 - 0.2mm, should print fine without supports but I set "build plate only" for the main arch.