Aleph, two color

prusaprinters

<p>This is a simple two-color remix of stevemedwin's "aleph" model (<a href="https://www.thingiverse.com/thing:80016">https://www.thingiverse.com/thing:80016</a>).</p> <p>I used blender to split the original model so that base and the Aleph are each a separate color/material, flattened the base, and scaled the whole thing up so that the model stands just a hair shy of 110 mm tall. It was a bit over 130 mm for the previous revision, but I started from the original model again, and didn't scale it up as much.</p> <p>Along with the separate "letter", "base", and "support" pieces, I've included my .blend file as well.</p> <p>I originally intended these to be printed with a dual/multi-extruder setup, but you can also print these with one extruder, one color at a time, if you arrange the pieces properly and then "split" them (as Slic3r calls it). Use both support pieces for dual extrusion, and just "support 1" for single.</p> <p>When the pieces are loaded, you'll find index/alignment squares next to the base. Position things so that the base's mark is to the right (+X) of the Aleph's mark, and the two supports' marks are right behind (+Y) them. Taken together, the four should form a perfect square with no gaps between them.</p> <p>Update: 2016-07-15: Simplified the geometry a bit and made the model printable as separate pieces, without using dual extruders.<br/> Update: 2016-07-16: added custom support material for the upper Yod, so that you don't have to use your slicer's automatic supports.<br/> Update: 2016-07-17: put a ~0.2mm gap between the "support 1" piece and the upper Yod (it was adhering to the Yod too well)</p> <h3>Print instructions</h3><h3>Licence: Creative Commons - Attribution Category: Sculptures Print Settings</h3> <p><strong>Printer Brand:</strong> RepRap</p> <p><strong>Printer:</strong> Prusa i3</p> <p><strong>Rafts:</strong> No</p> <p><strong>Supports:</strong> Yes</p> <p><strong>Resolution:</strong> 0.2mm</p> <p><strong>Infill:</strong> 15%</p> <p><strong>Notes:</strong></p> <p>With the low infill percentage, be sure you use an ample number perimeters and top solid layers. If you have an especially-good cooling setup, you can omit support objects entirely.</p> <p>In any case, make sure you have GOOD anti-ooze settings in place if you're doing this with dual extrusion.</p> <p>You may want to apply some custom settings to the support objects to reduce their density and number of perimeters, so as not to waste filament.</p> <h3> Post-Printing</h3> <p>Some trimming with an X-acto knife. Vapor smoothing recommended.</p> <h3> How I Designed This</h3> <p>I imported stevemedwin's original STL into blender, scaled it up, and did a "limited dissolve" over the whole model, with a threshold of 1 degree. Then I separated the Aleph from the base part, made both solid/manifold, extruded the bottom of the Aleph and flattened the bottom of the extrusion to create short mounting studs. I then copied those studs to a new object, scaled them up a bit, and used the result to cut corresponding holes into the base, with a nominal 0.15mm gap around all sides. Finally, I created custom support objects for the Aleph's upper Yod segment.</p>