Magnetic woodworking marking gauge and center finder

prusaprinters

<p>Inspired by the <a href="https://www.youtube.com/watch?v=Uc84lLwlLbk">“4-Way Measuring Ruler” by Youtuber B-Star Crafts</a>, this is a simple magnetic snap-on that can be used to easily measure and mark.</p><p>When the ruler is inserted in the vertical position, it works like a traditional marking gauge. The flat side lies flat against your work piece and you use the end of the ruler to mark things.</p><p>When using the horizontal position, the 90° corners can be aligned with inner or outer box corners to easily measure exact positions from the corner. Use the corner of the ruler to mark your position.</p><p>The horizontal position can also be used as a center finder for round stock.</p><p>The STL included here is for a 30mm steel ruler and a 3x25mm magnet - Fusion360 and step files are included and all important measurements can be adjusted through parameters. I used superglue to attach the magnet.</p><p>I found the hold good enough to not need any additional clamping mechanism or even a lid. However you could easily create a lid in Slicer by simply printing the bottom few millimeters. Or you could mirror the whole model to add a second magnet on top…</p><p>&nbsp;</p>