no...i didnt do any hardening of the nose cone. And I probably should have used some sort of adhesive to make that eye screw more secure to the nose cone.The way that fin broke looks like you built it with a "pop" fin... With the grain orientated the wrong direction. Also, balsa isn't exactly crush proof. Did you do anything to harden your nosecone? Say, use some super thin CA to seal and harden it after you glued the eye bolt in?
In looking at their image online, the fins are not oriented the way yours were glued on.
just checked the instructions...i see what you are saying now....i glued them on in the wrong orientation.The way that fin broke looks like you built it with a "pop" fin... With the grain orientated the wrong direction. Also, balsa isn't exactly crush proof. Did you do anything to harden your nosecone? Say, use some super thin CA to seal and harden it after you glued the eye bolt in?
In looking at their image online, the fins are not oriented the way yours were glued on.
ok...thanks for the input
The way that fin broke looks like you built it with a "pop" fin... With the grain orientated the wrong direction. Also, balsa isn't exactly crush proof. Did you do anything to harden your nosecone? Say, use some super thin CA to seal and harden it after you glued the eye bolt in?
In looking at their image online, the fins are not oriented the way yours were glued on.
SOP for balsa nosecones is to screw the eyebolt in, back it out, then fill the hole created with some white or wood glue, and screw the eyebolt back in before it dries. This helps prevent the loss of the cone. Hardening it afterwards with CA or a wood hardener just prevents dings and helps it look pretty (https://www.rocketryforum.com/showt...rial-Making-Balsa-Nosecones-Look-Like-Plastic).
