3D Printing R8 Rocket

Hi,

I just finished this rocket. I decided to try something different for fun. Came in at 11.7 OZ with E12 motor installed and all recovery installed. CG is right at the top of edge of the fins. I left the top of the nose open to add weight if needed but I think it may be good as is. Have not calculated the CP in rocksim but I am just guessing its somewhere below the top edge of the fins. Overall height is 15.125", Fins are 3" out from the body and 7" tall, and the body is 2.5" OD. All printed with black Prusa PETG. Fincan was printed upside down and the nose was printed in three parts. I have a pin that is used to secure the shock into the very top. I am pretty happy with the looks of it and hope it flies well. Its so dang foggy out or I would be launching it now instead of typing .

What do you think, will it make circles or go up? Planning on standing
behind the Gator when we launch this one the first time.
I started a poll for fun. Feel free to let me have it if you see something I missed or really messed up. Its all in fun.

Couldn't wait for nice weather I have been itching to fly this thing. Blowing about 10-15 and around 0 deg F. It flew great and no damage. PETG doesnt seem to get to brittle in the cold weather. I was very happy. Here is a link to the video and a picture.

https://photos.app.goo.gl/pqYsKpeC9QPawd6x9

Good looking rocket and flight!

Looks awesome nice one! I also printed a rocket, however, I used PLA for it. I'm working on a new build intended for D/E motors and I'm using PETG for the motor casing

Hey thanks. After further inspection one of the fin tips cracked on touch down. The print was done upside down with the fins and body together. The tips of the fins were actually quite flexible when printing and the very tips didn't hold well when printing. I am now printing a body and separate fins that slide in with a keyslot. Should be much stronger.

Looking to use higher power 24 mm motors on next launch.

It did fly dang good I thought. I can get STL files to anyone who wants them.
Thanks

Hi,

Here are some pictures of the final design. Very strong fins. Flew great.