Crafting 3D paper pop-ups can yield complex, expressive geometries, and can help develop spatial reasoning skills. However, designing the cuts and folds is often a frustrating process due to the strict geometric constraints. Foldlings is a tool that assists in this exploratory process, allowing a user to draw lines and be guided in creating well-defined pop-ups. We simulate the pop-up in 3D, allowing users to quickly preview their design before printing or laser cutting. We created an iOS app written in Swift, and performed informal user tests with 23 undergraduate students.
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It has been a month since ChessInvaders was published in the App Store! It has "sold" (for free) more than 6k copies, and has been engaged with (played through at least one level) almost 15k times. The download rate has slowed to about 10 a day, but about double that are playing every day! I'm pretty happy with that given that it's a pretty hard and definitely beta quality game experience.