20x20 Sigma Nut Holder

20x20 Sigma Nut Holder

thingiverse

There are specialized nut holders available for M3, M4 and M5 sizes. I prefer using M5 nuts with a 20x20 sigma profile because they perfectly fit my NEMA 23 motors. If you only need to attach small parts, M3 can be sufficient. These nut holders can also be used in conjunction with this corner bracket: http://www.thingiverse.com/thing:1934326. Print Settings: Printer Brand - RepRap, Printer - 3dIYId, Rafts - No, Supports - No, Resolution - 0.2, Infill - 10%

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