Estes BT60 to BT55 Transition / Coupling

thingiverse

I'm trying to come up with something to join Estes BT55 and BT60 tubes smoothly without any seams showing. Using PLA should minimize shrinkage, but it really depends on the printer and material you're working with. If things don't fit just right, sanding lightly or adding a piece of tape might do the trick. For now, I'm gluing the new connection to a cardboard tube before giving it a coat of paint or letting it fly.