Rough sanding and first coat of prime
I’ve completed assembly of the airframe. It just took a bit of CWP to fill the nose cone to body tube joint. A coat of sanding primer and some sanding with 220 grit paper, and not a spiral or groove to be seen.
I also experimented with using epoxy fillets, both to build up the fillets a bit for appearance/aerodynamics as well as to provide some added strength. I’d hate for the shock cord to interfere with the fins and tear one off during recovery.
It took a little bit of practice to pull them nice and smooth, by the fourth fin I pretty much had it down. It definitely helps to mask off the fillet area with some tape. As you can see in the images, they didn’t come out too bad. A little bit of sanding and CWP will clean them up nicely.