I am releasing the design file and 3D model for a fincan I design for high powered rockets. Everyone is free to use the design and change it to meet their needs. If you have any suggestions for improvements, feel free to post them in the replies.
Link to design file and 3D model:
https://www.thingiverse.com/thing:3246140
Link to design file and 3D model:
https://www.thingiverse.com/thing:3246140