When you think about it, this gear has 48 teeth, meaning it also has 48 gaps. What we want to do is rotate our gear so our teeth align. Notice that the gear with 48 teeth is twice as large as the gear with 24 teeth. Now, let’s create another gear that has 48 teeth. Change the hole size to 1 inch and click the button for “ok.” This will create one gear with 24 teeth. Click on the script (doesn’t really matter which of the two), then click the button for “run.” To start off, let’s create one gear with 24 teeth. This script is designed to help you create gears inside of Fusion 360. In this particular case, we’re going to scroll down and look for the function labeled “spur gear.” You can access them in the “tools” toolbar, under the add-ins function, under the scripts and add-ins button. Scripts are basically little mini-programs inside of Fusion 360 that automate an action. I don’t want to get super in-depth about the mechanics of gears in this particular video, so what we’re going to do instead is use a script to create our gears. In order to do this, we’re going to start by creating our gears. In this video, I want to talk about creating operating gears inside of Fusion 360 that have movement tied together, so that when one gear moves, another gear moves accurately at the same time. In this series, we’ve talked about the different kinds of moving joints you can use in Fusion 360 in order to simulate movement. If I want to do something more complex, I will have to dive into coding my own extension script.In this video, learn to use Autodesk Fusion 360’s joint simulation tools to create working gears inside of your 3D models!ĭo you like these Fusion 360 Tutorials? Make sure to subscribe to my YouTube channel to stay up to date on the newest videos! Subscribe Here – The Fusion Essentials YouTube Channel Onshape and Fusion 360’s spur gear scripts present their gear parameters in slightly different formats, but both should suffice for simple projects. I found the Python version in the “Scripts and Add-ins” menu and clicked “Run”. They presented it in both C++ and Python format. The spur gear script is part of the sample script library installed alongside Fusion 360, so I didn’t have to find a separate download nor was copying of public document necessary. They used to also support JavaScript, but as of July 2017 they have moved that into maintenance mode due to lack of usage. They expose their extension API to two languages: C++ for the high-performance native code crowd, and the Python interpreted scripting language for the less performance-focused audience. Thanks for the comment!įusion 360 did not declare their own scripting language. These two factors combined means many, many copies of the spur gear script in the public documents library. Correction: Custom FeatureScript can be added to the toolbar without making a copy. One downside of this approach is the fact that (1) Onshape users needs to make a copy of a public document before they could use it for their own purposes, and (2) all documents created with the free subscription tier of Onshape are public. A member of the Onshape team used it to create the spur gear script and made it available in the public documents library. Thankfully, both companies have heard the user requests and made simple spur gear creation available as an add-in created with their own respective scripting mechanism.Įxtending Onshape requires learning to write code in their custom language FeatureScript. So I had expected to find a significant section of the CAD package to be devoted to creating various types of gears for different applications, simulating and analyzing their suitability to the task, but there was nothing.įor basic projects, a simple spur gear would suffice. I’ve always thought of gears as a critical part of any nontrivial machinery. One item they share that I found surprising is that neither of them has built-in capability to add gears into the mechanical design. They each have their strengths and weaknesses and it’s always interesting to compare and contrast between them. I’ve been learning Onshape and Fusion 360 as they are two of the cloud-based CAD solutions with a subscription tier that’s free for me.
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