Silicone Overmold Nosepiece
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This is a great design, but I needed to modify it to fit my anatomy and add some cushioning.
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Virtual Reality
- Licencja
- Creative Commons — Public Domain
The printed portion of the nosepiece was fabricated using PLA+, but most common filament materials will work. If a more flexible mold is desired, consider printing the part in TPU or TPE.
The final nosepiece geometry was cast using a two-part silicone with a Shore hardness of 30A.
Assemble the mold and secure it tightly using electrical tape. Apply the tape under tension while wrapping to ensure a firm seal and minimize the risk of leakage.
Thoroughly mix the silicone according to the manufacturer’s specified ratio and mixing time—do not under-mix. Avoid using any silicone-based adhesives or sealants on the mold, as these can inhibit curing at contact points. If available, apply a suitable mold release to all interior mold surfaces prior to casting.
Degas the mixed silicone in a vacuum chamber before pouring to remove entrained air.
Pour the silicone slowly into one side of the mold until it begins to flow out of the opposite side. Continue filling until both cones are nearly full.
The mold pieces can be printed without support. Support will be needed to properly form the nosepiece.
A fuzzy skin on the Si/print interface may help with adhesion.