Large Compass – Trammel Circle Jig Tool

MembershipIf you’d like to sell prints of this model, you can do so by joining my Commercial License. It’s a simple way to support the project while getting permission to sell your printsA simple way to draw large, accurate circles using materials you already have in your workshop.This tool is designed for situations where a regular compass is too small – for example when marking tabletops, arches, or large cutouts.Instead of relying on a fixed ruler system, it mounts directly onto a straight beam, giving you full flexibility depending on the material and length you choose.🪵 Practical designThis is a fully 3D printed solution with no additional hardware required.It is made to be easy to reproduce and use:• No assembly• No metal parts• Uses standard workshop materials📏 How it works in practiceSlide the two parts onto a straight beam, insert a pencil, and rotate around the center point.The radius is defined entirely by your beam length, which makes it useful for both small and very lar