Flashcard Protector protects flashcards from dirt and moisture.
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updated July 9, 2025

Description

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Tired of your flashcards getting smudged, soaked, or bent out of shape? The Flashcard Protector shields your cards from dirt and moisture.

Designed for both storage and study, it offers reliable protection even when you're flipping through cards with damp fingers or on the go.

This model was designed to fit flashcards I created by manually dividing a standard letter-sized sheet (8.5 × 11 in / 216 × 279 mm) into thirds vertically (approx. 72 mm wide) and eighths horizontally (approx. 34.9 mm tall), resulting in a grid of 24 uniformly sized cards per sheet.

However, every flashcard is different. That’s why I’ve included the Fusion 360 source file—so you can customize the design to match your exact card dimensions.
 

ParameterValue (mm)Description
length80Total length of the flashcard cover
width40Width of the flashcard cover
hole_x14Horizontal offset for the hole position
hole_r5Radius of the hole
corner_r3Radius of corner rounding
thickness1.2Extrusion thickness
side_r12.4Radius for side rounding
fillet1.2Fillet for general rounding
fillet_top0.5Top edge fillet
fillet_hole0.5Fillet applied to the hole edge

 

I recommend printing with TPU for a flexible, long-lasting shield that won’t crack or warp under pressure.

TPU is the preferred filament for its:

  • Flexibility and durability
  • Resistance to tears, scratches, and moisture
  • Comfortable grip and resilience when held

 

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Model origin

The author marked this model as their own original creation.

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