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Sidecar
Sunglasses

Sidecar Glasses Co.

Sidecar is a small business that designs and manufactures unique frames in their Moab, UT workshop. Over the summer, I worked with their two-person design team, Ryan and Danielle.

Sidecar workshop with tools and frame display Working in the Sidecar workshop

Daily Tasks

I gained hands-on experience working alongside professional designers, assisting with tasks such as prepping and assembling leather for glasses cases and cutting lenses. I was also introduced to their design process, which gave me the opportunity to design my own pair of frames.

Leather case assembly work Leather glasses cases Cut lenses
How might we create a pair of sunglasses that captures the oversized vintage look while being more comfortable and durable for everyday wear?

User Persona: Meet Valerie

Valerie — user persona
Age:
38 years
Income:
$85,000/year
Location:
New York City
Lifestyle:
Valerie is a frequent traveler who works remotely. She lives with intention and cares a lot about style. She has a deep appreciation for vintage pieces but often finds them impractical.

Inspiration

Inspired by the oversized rounded square frames popularized by Jackie Kennedy Onassis, this design embraces a silhouette that is silly and fun, yet effortlessly sophisticated. The shape functions equally well as sunglasses or optical frames.

Jackie O in white hat and oversized sunglasses Blonde woman with straw hat and oversized sunglasses B&W close-up with oversized glasses Jackie O in blue polka dot blouse Jackie O in tan coat with scarf Jackie O in white jacket with gingham scarf

Market Research

Low end oversized sunglasses Higher end Ray-Ban tortoise frames Secondhand vintage Jackie O frames with notes
Brand:
Luna Stone Vintage (on Etsy)
Price:
$11.90
Material:
Unknown (probably acetate)
Problems:
Great because they're cheap but are low quality
Brand:
Ray Ban
Price:
$248
Material:
Acetate
Problems:
They could commit to the huge funky shapes and oversized look more
Brand:
Vintage (on Ebay)
Price:
$65.99
Material:
Unknown (probably acetate)
Problems:
Real vintage sunglasses can be top heavy and not very durable

Material Research

Common materials used in frames:

Acetate

  • plant-based, durable, lightweight
  • wide range of colors, patterns, and layered, transparent effects

Propionate

  • hypoallergenic, lightweight, flexible plastic
  • frequently used in sports-style frames

TR90

  • flexible, durable, and impact resistant
  • popular for sports and safety glasses
Acetate tortoise frames Propionate black frames TR90 green frames

Sidecar material
Acitate frames are a great option for a durable and high quality sunglasses.

Ideation

Here are some of the other ideas I came up with exploring oversized square and rectangular silhouettes.

Hand-drawn sunglasses concept sketches with one design circled

Rhino Model / Keyshot Idea

This was one Idea I was playing with in Rhino, not the final design but, I wanted to see what It might look like on CAD.

Rhino 3D model wireframe views of sunglasses Keyshot render of sunglasses in wood material

Process: What I Learned

New imporved design

To make the glasses more practical I decided to raise the bridge and stems to so they sit lower and are less top heavy. Another thing I learned to think about is the nose structure, which I didn't include on my first CAD model.

Annotated sketch showing design improvements — higher bridge placement, lower stem placement, and durability notes

Final 3D Modeling

This is the CAD model of the frames I designed! At Sidecar they use a special 3D modeling program for their laser cutting machines which is very similar to solidworks.

Final CAD model of sunglasses on Acer monitor Physical prototype frames in various colors on workbench

Process

  1. cut out frames and stems from acitate
  2. shoot metal stem though acitate stem
  3. sand and ploish acitate

Finishing:

  • glue on metal hinges
  • dip all acitate in a finishing coat
  • screw hinges together and insert lenses
Acetate frames and metal stems on work surface
Cut acetate frames in various colors on work surface Workshop with machinery and antler mount Pegboard with frames and belt sander workbench Pegboard wall with frames and buffing wheel

Machinery

On the right is the laser cutting machine they use to cut the frames out of a rectangular piece of acetate.
On the left is the machine that cuts and sands down the lenses.

Laser cutting machine for acetate frames Lens cutting and sanding machine

Final Product

Portrait wearing finished sunglasses, black and white Portrait wearing finished sunglasses outdoors Portrait wearing finished sunglasses with blue cap