Pencil Rocket by Prof. Itokawa (1955)

This is a full-scale model of the Pencil Rocket, the first rocket developed in Japan by Prof. Itokawa of the University of Tokyo in 1955.

For more information about the Pencil Rocket, please refer to the information in the attached URL.

This model consists of three parts. Each is printed using the Spiralize mode of the slicer. middle and top should have Bottom Layer set to 0.

Also, set the Build Plate Adhesion Type to Brim.

For the middle and top parts, shave the inside of the bottom thinly with a file or knife.

JAXA: Flight Test of Pencil Rocket and Baby Rocket in 1955
https://www.youtube.com/watch?v=hODYsZbVysM&t=1293s

JAXA: Pencil Rocket Story
https://global.jaxa.jp/article/interview/sp1/index_e.html