Simple single sided mold generator

prusaprinters

<p>This is a modification to jason webbs two part mold generator for single sided molds to cast tin/other low melting metals.</p> <p>It splits the mold in 2 pieces, which helps greatly when removing the casted part.</p> <p>Still very WIP, but maybe some find it already useful</p> <h3>Instructions</h3> <p>**<strong>The metals</strong> :</p> <p>In the second image you can see three casts: 1: Pure Sn97Cu3 (from local hardware store), 2 and 3: Sn97Cu3 with an added small Bismuth pellet, the third was made with leftovers from the second cast. Using Sn97Cu3 gives you a shiny finish, adding bismuth adds detail and a more matte surface. (mold 1: 0.20mm, 2/3: 0,125mm layer height)**</p> <p><strong>Caution:</strong> If you try to pour cavities deeper 5mm, you may loose the form due to melting! (Atleast with the tested tin)</p> <p><strong>Generating the mold (same as James Webbs generator):</strong></p> <ol> <li>Download the mold_v2.scad file and open it in OpenSCAD.</li> <li>Update the parameters in the script to point to your model, as well as transform it to be suitable for printing.</li> <li>Compile and Render (F6) the script with your updated parameters.</li> <li>Grab an STL using the "Design &gt; Export as STL" tool.</li> </ol> <p>optional: Seperating the mold in 2 pieces 5. Load the STL in Netfabb basic, rightclick extras-&gt;repair part 6. Use "select shells" to select and then delete one of the 2 parts 7. repeat for the other part.</p> <p>(default STL used in the script is sappo.stl, provided in the downloads)</p> <p><strong>Casting the metal parts:</strong></p> <p>Use ABS plastic for the molds, slightly sand the 2 facing surfaces for better alignment. Clamp the 2 parts ( <a href="https://www.thingiverse.com/thing:12616">http://www.thingiverse.com/thing:12616</a> works great). Heat the metal to be just above the melting temperature, best is to move it a bit around before pouring. Pour into the mold. After it has settled a bit you can drop it in a glass of water for faster cool down.</p> <p>Twisting the 2 molds against each other works pretty well to remove the mold.</p> Category: 3D Printing Tests