Additive manufacturing allows integration of complex lattice structures not viable through subtractive methods. Lattices can reduce weight, increase flexibility, and improve aesthetics.
Radiation glasses typically include heavy leaded glass, adding significant weight. By latticing the arms, weight is reduced without sacrificing functionality, increasing comfort and improving aesthetics.
First Iteration, FDM:The part was designed in SolidWorks and printed on an FDM printer without latticing to test fit and function. The arms were bulky to allow for a larger lattice, but the front face needed reduction.
Second iteration, latticing: The model was separated into five parts: face, temples, and temple tips, allowing control over the lattice area. In Inspire, the model was reassembled and forces placed on each temple mimicking lens weight and head positions. Lattices were added at 70% material removal.
The initial solid part used 23.69 mL of material while the latticed part used 13.89 mL, a 41.4% decrease in material usage.
Final print: Glasses were printed on the Form 2 upside down at 45 ̊ from vertical. This build direction minimized the raft area and placed supports on non-”show” surfaces, creating a visually clean part.
