What are the main challenges and solutions for post-processing vat photopolymerization prints?

2 Support removal

Most vat photopolymerization prints require supports to prevent deformation and detachment during printing. However, these supports also need to be removed after curing, which can be a challenge depending on the geometry and fragility of the print. There are different methods for support removal, such as manual cutting, snapping, sanding, or using a dissolvable material. The choice of method depends on the type and size of the supports, the print material, and the desired surface quality.

4 Safety and environmental issues

Post-processing vat photopolymerization prints also involves some safety and environmental issues that need to be considered and addressed. For example, the resin and the solvent used for cleaning can be toxic, flammable, or irritant, so they need to be handled with care and disposed of properly. The curing process can also generate heat and fumes, so it needs to be done in a well-ventilated and fire-safe area. The print itself can also pose some risks, such as skin irritation, allergic reaction, or infection, depending on the material and the application.

5 Tips and best practices

To get the most out of post-processing vat photopolymerization prints, it is important to follow certain tips and best practices. Wear gloves, goggles, and a mask when handling the resin, the solvent, and the print. Clean it gently and thoroughly using a soft brush or a spray bottle. Follow the manufacturer's instructions for curing time and temperature. Remove supports with a sharp blade or pliers to avoid damaging the print. Start sanding with a coarse grit and gradually move to a finer one. Apply a thin layer of primer before painting or coating the print. Lastly, store it in a dry and dark place to prevent yellowing or degradation.

6 Resources and tools

If you need more information or tools to help with post-processing vat photopolymerization prints, there are plenty of resources available. For example, you can find a comprehensive guide on post-processing resin 3D prints, a comparison of different resin cleaning methods, a selection of curing chambers and lamps, a collection of primers, paints, and coatings for resin 3D prints, and a list of safety tips and precautions for resin 3D printing. All of these can help you learn more about the process and acquire the necessary materials.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?