Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Modulus Gear Customizer

by SciTeacherEd, published

Modulus Gear Customizer by SciTeacherEd Oct 7, 2017
0 Share
Download All Files

Thing Apps Enabled

Open in Customizer Order This Printed View All Apps


Liked By

View All

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag

Thing Statistics

2207Views 831Downloads Found in DIY


Public Domain Modulus Gear OpenSCAD code
version 1.0
This code defines a gear based on its modulus rather than pitch in mm, Modulus is the ration of tooth count:diameter, effectively the pitch of the gear is modulus * pi, ie, a gear of mod=1 has a tooth pitch of 3.1514mm.

The advantage of using modulus rather than pitch to define a gear is that it is very easy to prototype - for example, a gear of mod = 1 will have a diameter that matches the tooth count, with mod = 2, radius = tooth count.

This code is based on the poblic domain Parametric Involute Spur Gear code by Leemon Baird found at http://www.thingiverse.com/thing:5505

The file here is designed as both a library file (just use include at the start of your own OpenSCAD file, after removing the modgear call), and as a customizer so you can create and download your own custom gears directly from Thingiverse!

Note: If using the options of a square or hexagonal center hole, be aware that the size is diagonal (corner to corner) not the side length. This, for a square bore 4 mm an a side, the hole size should be set to 5.7 mm (This requires applying the Pythagorean theorem).

Print Settings

Printer Brand:



More from DIY

view more

All Apps

Customizer is the easiest way to take great 3D printable designs and make them your own. Make your OpenSCAD designs infinitely more valuable by empowering the community to customize them.

App Info Launch App
Customizer Thing App

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

Treatstock is an online platform that offers decentralized manufacturing services such as 3D printing and CNC machining for clients all over the world. We offer free and instant access to comparati...

App Info Launch App

3D print your favourite design with NinjaPrototype, a professional 3D manufacture with consistent quality and speed.

App Info Launch App