As usual, I pinned the fin blanks together to cut them at the same time, and match sand them. I rounded the leading edges, and also cut the 29mm motor tube to length.
Interesting. I do something a little similar when sanding down my scratch made fins except I use 2 sided carpet tape to hold all the fins together. It's a bit of a PITA peeling off the residue so I am going to have to try your method at some point...Nice build.
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