30 by 20bore tooth
thingiverse
Customized version of http://www.thingiverse.com/thing:16627 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=16627 Instructions Using the following settings: Pulley Bolt Diameter = 20mm Number of Nuts = 1 Motor Shaft Size = 20mm Idler Setting = Off M3 Nut Hex Option = On Additional Tooth Width = 0.2mm Pulley Body Height = 8mm Retainer Height = 1.5mm Additional Tooth Depth = 0mm Idler Height = 1.5mm Retainer Feature = Off Number of Teeth = 30 Profile Setting = 6 Nut Shaft Distance = 1.2mm M3 Nut Depth = 2.7mm Nut Angle = 90 Degrees M3 Nut Flats = 5.7mm Pulley Top Height = 12
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