Fusion 360: Split Large STL files for 3D Printing @ProductDesignOnline
Fusion 360: Split Large STL files for 3D Printing  @ProductDesignOnline
Uploaded July 2019 | Updated September 2026, 2 weeks ago
By the end of this video, you’ll know how to use Fusion 360 to split up your large STL files for easier 3D printing.

This tutorial has two main workflows, depending on what type of model you’re working with.

The first workflow I’ll cover is how to split STL mesh files. In other words, a lot of Fusion 360 users import an STL file from Thingiverse and they need to slice the file into smaller pieces so it fits the size of their 3D-printer’s build plate.

For the second workflow, I’ll show you how to split up your model if you built the model directly in Fusion 360, or if you’ve imported a solid body file, such as a STEP file. This method has similar procedures, but we’ll be working in a different workspace.

Be sure to stick around until the very end of this tutorial, as I’ll show you a trick or two that will help you make joints so each 3D printed part fits together firmly.

TIMESTAMPS
0:00 - Splitting large STL files in Fusion 360
1:37 - Measuring the model
2:36 - Turning on the Mesh preview
4:50 - Using the plane cut feature
6:39 - Selecting the cut type
7:13 - Selecting the fill type
12:13 - Second method: using the split body tool
14:23 - Moving the newly cut parts
16:51 - Creating a dovetail
23:20 - Copying the joint type: make duplicates

TUTORIAL RESOURCES
1. This tutorial's resource page ➞ ProductDesignOnline.com/9
2. View my checklists for Fusion 360 beginners ➞ bit.ly/f360checklist
3. Join us on Patreon ➞ patreon.com/productdesignonline

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QUESTION
Have a question about Fusion 360? Post it in the comments section of this video!

DISCLAIMER
This video and description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. This helps you support the channel at no extra cost to you and allows me to continue to make videos like this.


#3DPrinting #Fusion360 #ProductDesignOnline
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Fusion 360: Split Large STL files for 3D Printing

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