Location: Otakon 2026
Walter E. Washington 144B - Workshop Room (Friday)
Walter E. Washington 144C - Crafts Room (Sunday)

Class Length: 2 hours

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You've got a 3D print off your printer – now what? In this hands-on workshop, cosplayer & engineer StarsOfCassiopeia will walk students through the differences between various 3D printing methods and showcase techniques for sanding, filing, polishing, and painting raw FDM and resin prints. Students will complete the finishing for a Genshin Impact 3D printed vision. Students will be able to take home the project for stringing on a chain or pendant. 

Please note: While we will be adhering to proper safety guidelines and precautions – including masking, off-gassing, and skin protection – 3D printing materials and polishing chemicals can cause short-term irritation to the eyes, nose, and throat, as well as headaches, nausea, and dizziness. Those with a history of respiratory issues, migraines, or any other health predisposition that could be aggravated by these fumes are kindly asked to attend at their own risk.

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In this workshop you'll learn:

• The differences between various 3D printing methods and when to use which in accessory/prop making
• How to properly sand, file, and polish 3D prints
• How to work with FDM and resin prints, both commonly used in cosplay
• Coloration & painting techniques for smoothed 3D prints

Prerequisite Skills:

None – beginner friendly

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About the Instructor:

StarsOfCassiopeia (she/her) has been crafting award-winning mixed media cosplays since 2007. Cass graduated from Harvard with a degree in Engineering, has developed multiple printing technologies as a professional in the 3D printing field (Formlabs, Studio 3e8), and loves combining that professional design experience with historical design influences and elaborate hand-sewn detailing. In addition to 8+ years of experience teaching panels at cons, she also taught Intro to Making at MIT, and co-founded the cosplay commission-centric website Cosmosii.com.

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The Nitty Gritty:

• To participate in this workshop, a liability waiver must be completed for all participants
• Anyone under 16 years of age MUST be accompanied by an adult or legal guardian
• Space is limited and all tickets are first come first serve
• Purchasing a ticket reserves one (1) seat at this class. For multiple tickets, please add more than one ticket to your cart
• All tickets are final sale. In the event of a no-show, no refunds will be available
• Tickets will be delivered digitally to the email address provided at checkout. This digital ticket will be needed to enter the event.
• All classes start promptly at the time they're scheduled for. In the event of tardiness, you may miss certain aspects of the class and may not be able to complete the scheduled project in full.

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Our Sponsors for the 2026 Otakon Cosplay Studio: