Gridfinity Template (modified for mid-air holes)

prusaprinters

<p>This is the Gridfinity template by Zack Freedman, with a small modification to allow printing the holes in mid-air without supports.</p><p>If you don't know what Gridfinity is, check out &nbsp;<a href="https://www.youtube.com/watch?v=ra_9zU-mnl8">Zack's original video</a>, his original <a href="https://thangs.com/designer/ZackFreedman">designs on thangs</a> and this <a href="https://gridfinity.xyz/">unofficial specification</a>.</p><p>The original design had small holes, which would normally print mid-air and cause a little mess.</p><p>The usual solutions are:</p><ul><li>Change slicer settings to print external perimeters first</li><li>Plug the small hole with a single layer, so it can still be punched open</li><li>Plug the entire hole, who uses it anyway?</li><li>Print with supports</li></ul><p>Out of all the options above, the single layer solution is probably my favourite. However, the template included here adds another solution, which allows printing the holes mid-air without any changes to settings.</p><p>The technique is described in <a href="https://github.com/gregsaun/maker_cheatsheet/blob/master/3d_printing/techniques.md#mid-air-hole">Greg's 3D Maker Cheatsheet</a>, and I recommend you read it for more details.</p><p>Included is a sample model, which you can print to see how it works in real life.</p><p>The most important file here is the Fusion360 archive, which you can use as a template for creating gridfinity compatible modules.</p><h4>Mid-Air holes by other people</h4><p>There are other gridfinity based solutions that also incoroporate this same technique.</p><ul><li><a href="https://www.printables.com/model/275757-gridfinity-base-template-with-improved-holes-and-w">Gridfinity Base Template with Improved Holes (And Weight Slots - if you want them)</a><br>This design includes a base model that can be inserted into existing Gridfinity models</li><li><a href="https://github.com/kennetek/gridfinity-rebuilt-openscad">Gridfinity Rebuilt in OpenSCAD</a><br>This OpenSCAD implementation of the Gridfinity standard, also including support for mid-air holes</li></ul>