Vase-Mode Printable 2020 Extrusion

prusaprinters

<p><a href="https://www.thingiverse.com/thing:10261">This Thingiverse model</a> includes DXFs of an extrusion-like profile optimized for 3D printing. &nbsp;I've taken it to the next level and made it printable in vase mode. &nbsp;At first, I just hollowed out the center and added a thin cut to allow the slicer to get in, but this made one side of the extrusion liable to spread apart under some loads. &nbsp;I then got the idea to extrude the same shape 0.2 mm at a time, but rotate it 90° every time. &nbsp;This eliminates the spreading problem. &nbsp;Replacing the square hole down the center with a 6-mm round hole should also improve strength.</p><p>vasemode_extrusion() takes two parameters. &nbsp;The first is the total height to render. &nbsp;The second is the intended layer height under which it will be printed.</p><p>Print in vase mode (of course) with a 0.8 mm extrusion width. &nbsp;1" and 150-mm pre-rendered STLs (for 0.2 mm layer height) are included, as well as the OpenSCAD source and a profile DXF.</p>