Rocket Fin Can for 29mm body tube

I have flown this several times past Mach 1 since the fins are perfectly aligned every time. All you have to do is print it (10% fill, normal speed print, with rafts) and epoxy the fin can a quarter-inch or so above the bottom (so you can use a ring of duct tape for motor retention) of a 12" (or longer) strong body tube (it is perfectly sized for Blue Tube) and tape a golf ball to the top (range balls are free nose cone + weight, which you will need). If you have extra epoxy, lather it on the