Snap Ball fix for a smoother surface

prusaprinters

<p>The “Snap Ball” by DaveMakesStuff (<a href="https://www.thingiverse.com/thing:5408201">https://www.thingiverse.com/thing:5408201</a>) is a wonderful model, but it can be improved.</p><p>The top surface of the “Penta” part is not smooth, therefor the slicer does not make nice round circles on top. This script shaves off a little from the top to make it smooth.</p><p>The Snap Ball in the photos is made with Silk PLA (Dark Copper and Sky Blue).</p><p>I have added the “Hex” part in the script as well, although there is not need for it.</p><p>Put the OpenSCAD script in the same folder as the stl files. The added file “SnapBallFix.scad” is the same as the script below:</p><pre><code class="language-plaintext">// Snap Ball fix by shaving off the top with a sphere. // To make the surface more round so the slicer can // make better round circles. // Put the scad and stl files in same folder. $fn = 300; // Try 100 for slow computer intersection() { // Select either the Penta or the Hex part. // The * is to ignore that part. translate([0.52,0.48,0]) // It needs to be centered import("Truncated_Icosahedron_Penta.stl", convexity=5); *translate([0,0,-42.285]) // It needs to be lowered import("Truncated_Icosahedron_Hex.stl", convexity=5); translate([0,0,-42.35]) // Lower the sphere for more shave sphere(50); // The sphere that does the shaving }</code></pre><p>&nbsp;</p><p>The files “Truncated_Icosahedron_Penta-fix.stl” and “Truncated_Icosahedron_Hex-fix.stl” are the files that has been fixed with the OpenSCAD script.</p>