In the world of 3D printing, you’ll sometimes end up with models that — for one reason or another — just don’t want to be printed.

These models can come from anywhere: bad scans from Kinect or other DIY scanning solutions, objects made in 3D software that weren’t combined into a solid, or from code that creates 3D objects that were never intended to be made physical. This is a quick walk-through of how I was able to print one of these unprintable objects using a new, (currently) free app.

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