Cutting an STL file into smaller sections

How To
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I have a large STL file I would like to cut into smaller sections (20" x 20") to make a large wall installation. My intent is to have spacing between the sections, not but them up against each other. How can I, or can I, divide the STL file into separate files to accomplish this?
Working with a Shapeoko 5 Pro - 2x2, Carbide Create V 8 Pro.
Thanks.

2

Use a mesh manipulation tool such as Microsoft’s 3D Builder to grid out and section things up.

Or, do it programmatically in a tool such as OpenSCAD.

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Thanks Will. Have a good weekend!

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Could you set it up like this, like you’re doing manual tiling? Create a boundary (black) for each tile, and a 3D path for each. You’d have to keep track of the zero corners. The second tile in this one the lower left corner would be X0 Y20…

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Thanks for all the input. I found a way to do it using Fusion 360 (Free Personal version). This video, while a little dated, made it very easy to figure out. I can divide up the file and export the smaller sections as new STL’s.

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Oops. Forgot to include the link for the video.

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