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5:00. Workbench Update. Lens. Workbench Update. Lens Acrylic (PMMA) resin Waterclear UV-stable Translucent red coating Vacuum casting. RTV Molding/Urethane Casting. SLA master 0.003 in/in oversize Mirror polished Mold Parting Surface applied to Master RTV poured over Master

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5:00

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  1. 5:00

  2. Workbench Update • Lens

  3. Workbench Update • Lens • Acrylic (PMMA) resin • Waterclear • UV-stable • Translucent red coating • Vacuum casting

  4. RTV Molding/Urethane Casting • SLA master • 0.003 in/in oversize • Mirror polished • Mold • Parting Surface applied to Master • RTV poured over Master • Parting Surface removed & Sprues applied • RTV poured on opposite side • Slow-cure resin poured into mold • Resin degassed • Vacuum used for finer detail • ~15 parts/mold

  5. Workbench Update • Previous Manufacturing Processes • Lathe • EDM • Short-run ‘rubber’ molding • Waterjet • ‘Rapid’ casting • Next update – Final Product

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