Captive Square Nut Thumbnut

prusaprinters

<p>This is a configurable thumbnut design. &nbsp;The default parameters are set up for a square M3 nut. &nbsp;This can be configured to fit any size of square nut.</p><p>When you're slicing the stl, make sure to set it up to pause at the end of the very last layer where the square opening is still open. &nbsp;In Cura you can do this by going to “Extensions” → "Postprocessing" → “Modify G-Code” → “Add a script” → “Pause at height” (make sure to set the method to match how you're printing).</p><p>I found that configuring it based on direct measurements of my nut didn't allow it to fit properly. &nbsp;I had to adjust the inside hole to be a bit larger (by more than I expected) before it would fit. &nbsp;It's really quick to print, though, so it doesn't take long to find the right size.</p>