Remixed from: https://www.thingiverse.com/thing:3223207 I changed the scale of the cone a bit, the biggest changes I made were in the fins. I cut the fins in half to decrease print time, and I made it so they have four fins instead of three, this way it can fit on the print bed much better. The fins for a full two-liter bottle can now fit on an Ender 3 bed.

Make sure to scale the parts correctly and use Vase mode.

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Check out my video about these rockets here: https://youtu.be/s1Jk3NoKY-M