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GT2 Idler Pulley using 608 bearing — image 1
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GT2 Idler Pulley using 608 bearing

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Quick print to make an idler out of a 608 bearing. It has a M3 center hole for mounting.

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Model information

Category
Accessories
License
Creative Commons — Public Domain

Contains a top and a bottom half that snap together with the 608 bearing in the middle.  

Outer diameter is 27mm.  Inside diameter is M3 (technically 3.5mm to allow for tolerance).

Print with PTEG or PLA using 0.2 layer height and 0.5 or less line width (i.e. a 0.4 nozzle would be best).  Make sure that both parts have the flat side facing downward on the plate.

STEP files are included, which you can add into your slicer just like an STL (but they are easier to edit in CAD if you need to).