Lasercut Rocketry Ruler

thingiverse

This is a precision tool for drawing precise lines on cylindrical surfaces parallel to their central axis, ideal for marking fin placements on model rocket bodies. A crucial reminder that in model rockets and larger designs the center of pressure should be positioned behind the center of gravity; these markings are included as a visual aid. Designed to be laser-cut from 4mm plywood into two sections. Note: I have added an alternative design cuttable from 3mm material at user request.