For use with a Printrbot Simple with an aluminum handle attachment. Designed to print as one piece w/o support. Recommend printing at 40% infill or greater.<br><br>If you don't have the aluminum Simple Handle, it can be purchased here: http://printrbot.com/shop/simple-handle-alu/<br><br>Designed By: Tommy Bertken<br>The Printrbot Printrn
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