FF-20 V2.1
When
@iceking1152 posted his build of the FF-20 I thought it might be a good choice for a foam board EDF build. The original FF-20 plans are a .pdf image of sketches, and while adequate they are a bit fidgety, so I attempted to make them more accurate and more easily repeatable.
V2.1 is basically the original design with tabs/slots added for alignment and fitment, size adjustments,
familiar simplified FT-ish style color-coding to help during the build...
