NEMA17 4:1 Gearbox

A printable gearbox that fits standard NEMA17 stepper motors.

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Description

Here's a 4:1 gearbox for NEMA17 stepper motors that utilizes herringbone gears for smooth power transfer and minimal side-thrust from the gears.

THIS DESIGN MAY NOT WORK FOR YOUR PRINTER WITHOUT ADJUSTMENTS

Parts have been designed to be 0.3mm larger. This should be taken taken into account when printing.

If you are unable to assemble the parts as shown or if there is any backlash in the assembled gearbox, you will need to modify the design files/change part dimensions to fit your printer.

For more details, assembly steps, design files, and a guide to designing printable gears in Autodesk Inventor see my post at https://0x7d.com/2014/08/41-gearbox-for-nema-17-stepper-motors/.

Materials and methods

- 4x 20mm M3 Screws
- 4x 16mm M3 Screws
- 4x 1.6mm M3 Low-Profile Nuts

Documents

Double Helical Gear 11.3mm Od 5.35mm Id 8mm H 0.1mm Bl 40deg 0.8mm M 11 T Motor
STL – 4.1 mb
Version 1 - Apr 01, 2016
Updated on 01-04-2016 – 0:08 h – 1 g – 13×13×8 mm
Edit in 3dslash
Version 1 - April 01, 2016 12:36
Download
Double Helical Gear 11.3mm Od 5.35mm Id 8mm H 0.1mm Bl 40deg 0.8mm M 11 T Motor
STL – 4.1 mb
Version 1 - Apr 01, 2016
Updated on 01-04-2016 – 0:08 h – 1 g – 13×13×8 mm
Edit in 3dslash
Version 1 - April 01, 2016 12:36
Download
Double Helical Gear 11.3mm Od 5.3mm Id 8mm H 0.1mm Bl 40deg 0.8mm M 11 T
STL – 4.1 mb
Version 1 - Feb 04, 2015
Updated on 04-02-2015 – 0:08 h – 1 g – 13×13×8 mm
Edit in 3dslash
Version 1 - February 04, 2015 14:08
Download
Double Helical Gear 11.3mm Od 8mm H 0.1mm Bl 40deg 0.8mm M 11 T Peg
STL – 2.5 mb
Version 1 - Feb 04, 2015
Updated on 04-02-2015 – 0:22 h – 1 g – 13×13×23 mm
Edit in 3dslash
Version 1 - February 04, 2015 14:08
Download
Gear Base 11.4mm D 4x 4.7mm W 3mm H 4.4mm E
STL – 300 kb
Version 1 - Feb 04, 2015
Updated on 04-02-2015 – 0:25 h – 2 g – 38×38×7 mm
Edit in 3dslash
Version 1 - February 04, 2015 14:08
Download
Inner Helical Gear 34.5mm Od 3x11.5mm Id 4mm H 0.1mm Bl 40deg 0.8mm M 33 T Ccw Nema17
STL – 940 kb
Version 1 - Feb 04, 2015
Updated on 04-02-2015 – 0:50 h – 4 g – 42×42×11 mm
Edit in 3dslash
Version 1 - February 04, 2015 14:08
Download
Inner Helical Gear 34.5mm Od 3x11.5mm Id 4mm H 0.1mm Bl 40deg 0.8mm M 33 T Cw Nema17
STL – 1.1 mb
Version 1 - Feb 04, 2015
Updated on 04-02-2015 – 0:36 h – 3 g – 42×42×7 mm
Edit in 3dslash
Version 1 - February 04, 2015 14:09
Download

Issues

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Comments

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