Post-Processing
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Removal from Build Platform
DLP prints are removed from the printer still attached to the build platform, in the uncured state. Further steps are taken to ensure a clean and precise curing process. With our FDM prints, once the print time has concluded the part is ready to be removed from the build plate and inspected to ensure dimensional accuracy. Once inspected and all tolerances are in check, the parts are set aside for further steps.
DLP Curing Process
DLP prints are washed in 2 cycles of 99% isopropyl alcohol to remove uncured resin from the surface. After washed parts are inspected for cleanliness and set inside of a drying oven. Once dry, the part is placed in a UV curing chamber where it is exposed to controlled light and heat to fully harden the resin. Proper washing and curing improve the part’s strength, accuracy, and long-term stability.
Removing/Cleaning Supports
Support removal in FDM printing generally involves mechanically breaking away the support structures using tools such as pliers, cutters, or scrapers. Taking special care to maintain a high quality finish. In DLP printing, supports are clipped or cut off at their attachment points, and care must be taken to avoid leaving marks on the surface. Both processes require precision and patience to preserve dimensional accuracy and surface quality. Proper post-processing ensures the final part is both functional and visually clean.
Finishing
Both FDM and DLP parts can be finished with an aerosol paint to enhance appearance and protect the surface. Acrylic and spray paints are commonly used, allowing for a wide range of colors and finishes tailored to the application. For DLP prints, additional care may be taken to ensure the resin surface is fully cured before painting for optimal adhesion. At Integrity Advanced Manufacturing, we currently provide painted finishes and are working toward offering advanced options such as bead blasting to further expand our finishing capabilities.