Anet A8 GT2 Belt Idler Pulley Insert

thingiverse

This will allow you to convert the smooth "pulley" (two bearings pressed against each other) to a real toothed pulley, reducing X and Y axis vibration and noise. A toothed belt should never ride on a smooth surface, especially under tension. This allows you to use the stock bearings without any modifications and still have a toothed pulley. Whether you are using the stock Y and X idler mount or an upgraded Y or X tensioner, this is a must-have to ensure your belt lasts long and reduces noise from the teeth chattering on the bearing/pulley. Thanks to droftarts for the customizer and original part! This customized version of http://www.thingiverse.com/thing:16627 was created with Customizer at http://www.thingiverse.com/apps/customizer/run?thing_id=16627. Print Settings: Printer: Anet A8-B Rafts: No Supports: No Resolution: .12 Infill: Doesn't Matter, outline only Notes: Print this SLOW... 15mm/sec, and at .12 resolution for the smoothest teeth. 0.04 Perimeter top bottom sides. Wait for your bed to cool completely before taking off. Take a close look at your bottom layer and make sure it's not too smooshed. If so, adjust in your slicer accordingly as this can cause wear on your belt if the tooth profile doesn't match the rest of the print. Post-Printing: Remove the 2 bearings from either the X or Y axis. Press the printed part onto one half of the bearing, then the other. Center it as best as you can and re-install. You're good to go! Instructions: Using the following options: pulley_t_ht = 5.0 pulley_b_dia = 0 motor_shaft = 10.5 nut_angle = 90 nut_shaft_distance = 1.2 additional_tooth_depth = 0 m3_nut_depth = 2.7 retainer_ht = 1.5 profile = 12 idler = 0 m3_nut_hex = 1 m3_dia = 3.2 m3_nut_flats = 5.7 no_of_nuts = 1 pulley_b_ht = 0 retainer = 0 teeth = 22 additional_tooth_width = 0.2 idler_ht = 1.5