
Save the model in a file format that you prefer.Click on the “update hollow” followed by “Generate holes” to generate a model with the parameters you have set.If you’re going for resin printing, select the number and size of the holes.Click on the “Edit” option on the menu bar.Here are the steps on how to hollow out STL files in Meshmixer: You can use Meshmixer to hollow STL files and 3D prints. Meshmixer is a 3D modeling software that creates, analyses, and optimizes 3D models. How to Hollow Out STL Files and 3D Prints How to Hollow Out STL Files in Meshmixer I actually wrote an article specific on How to Hollow Resin 3D Prints Properly. Make sure you have holes in hollowed resin 3D prints so the resin can drain out though. You can then choose to export that hollowed out file as an STL to use for other purposes, or to just 3D print.

With resin 3D printers, using software like Lychee Slicer, they have a hollowing feature directly in there so any STL file you input can be hollowed out pretty easily. For CAD software like Meshmixer you can hollow out models using a hollow function. Slicers like Cura & PrusaSlicer allow you to simply input 0% infill.

Yes, you can 3D print hollow objects by simply applying 0% infill density in your slicer, or by hollowing out the actual STL file or model within the relevant software.
