Sunglasses

pinshape

Printing orientation is crucial for best results, so follow the instructions in the pictures carefully. # Lens Dummy: Print the lens dummy in PLA with supports in standing up orientation. Refer to the picture provided. # Frame: Print the frame in PETG/ABS with a minimum wall thickness of 1.2mm and 20% infill, using full support is advised. You can also print it in PLA, but it's not recommended as it may become soft after prolonged exposure to sunlight or when left in a hot car. # Arms: Print the arms in PETG/ABS with a minimum wall thickness of 1.2mm and 20% infill, using full support is advised. You can also print them in PLA, but it's not recommended as they may become soft after prolonged exposure to sunlight or when left in a hot car. # Flex Connectors: The flex connectors need to be printed in TPU or similar flexible plastic with a Shore Hardness of A90 or less. Shore Hardness A80 is recommended for comfort while wearing. BOM: 2x Lenses (designed to fit common cheap Chinese Ray-Ban/80's style sunglasses) 1x M3x4mm screw (Linsenschraube mit Innensechskant ISO 7380) 1x Frame 2x Flex Connectors 2x Arms (in one CAD file) Assembly: FIRST, print the lens dummy and check it with your lens to ensure a good fit. You can also take the finished glasses to an optician and get custom lenses made. Sand the frame (I sanded mine for a nice matte finish), especially the part that rests on your nose. Check that the lenses fit the frame. Thread the M3x4mm screw into the frame to create a thread. If the thread doesn't start, you can use a thread cutter or enlarge the hole with a D2.5mm drill bit. Insert the flex connectors into the frame. The tolerance is on the larger side, so if you have an accurate printer, you may need to apply glue (gel-based superglue works best). Now, put the arms on the flex connectors (! 2 different sides). You may also need to apply glue. The final step is to insert the lenses and tighten the screw. I will include a lens dummy so you can determine if your lens would fit. The glasses were designed in Creo Parametric 6.0, and all source files will be included.