Lasercut Rocketry Ruler
Description
This Is A Ruler For Drawing Straight Lines On Tubes That Are Parallel To The Centre Of The Tube, Useful For Marking Fin Locations On Model Rocket Bodies. As A Reminder That In Model (And Larger!) Rockets The Centre Of Pressure Should Be Behind The Centre Of Gravity These Symbols Are Included! :) Designed To Be Lasercut Out Of 4Mm Ply In 2 Sections. Edit: Had A Request For A 3Mm Version So Have Added One!
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