Fishing Line Pulley for my DIY Ultimaker

2014-08-06: Uploaded a version for 6.35mm shaft as requested.

2013-10-18: Changed the files to two new designs in pretty high resolution. They are 20mm in diameter and 33mm high. It has 15 turns. When you use 2 turn for driving (as I do in my Rostock since a year) 13 turns for movement will remain.
20mm * 3.1415 = 62,8mm
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62,8 * 13 = 816mm --> This should be enough for your ultimaker.
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I'm going to build my own derivate of an Ultimaker. I want t