------- How To Use -------

A cover for a clothes button that expands its diameter by 2mm. It's recommended that the shirt be buttoned up first before putting on the expander.

Each model is named for the type of button it will fit over. For example, if you have buttons that are about 11mm in diameter on your shirt, the 11mm model would be pushed over it (ridges facing down towards the shirt) and expand it to about 13mm wide.
(Note: while the ridges should hold the button expander in place, it may have a small amount of play and be able to rotate)

To remove, a thin rod, such as a small Allen key, can push down on the center of the button, while you simultaneously pull up on the button expander [potential future improvement: button expander removal tool?]
(Note: not guaranteed as washable/dryable, but I guess you can leave these on at your own risk)

------- Assets Provided -------

Button diameters: 9mm, 10mm, 11mm, 1/2" (0.5 inches), 9/16" (0.5625 inches)
Heights: 0.8mm-1.8mm (SLIM), 1.8mm-2.8mm (STANDARD), 2.8mm-3.8mm (THICK)
(Note: typical shirt buttons seem to be around 11mm wide and 2.5mm thick, so the 11mm “standard” thickness model is the recommended default)

For your convenience, a .zip file for several different diameters and thicknesses is provided for you to test out. If your button is between or outside of a button expander's range, you may need to scale one of these models in your preferred slicer.

------- Printing Recommendations -------

Examples were printed out of clear PETG and blue PETG at very slow speeds (20 mm/sec) for better strength/adhesion. Weaker materials may not hold up as well Since the walls are pretty thin (0.6mm minimum). A 0.16mm layer height on a 0.4mm nozzle was used for the example images, so any layer height shorter than that should also work in theory.

A clear material can be a solid default choice because it's not really noticeable at a glance, but if you want to make a really bold fashion statement you could potentially switch all your button rims to different color(s).

Depending on how your printer leaves material behind, note that there may be burrs or bumps to knock of the ridges so they don't catch on fabrics.

------- But Why Would I Print This? -------

• Stops embarrassing button pop-outs if you, as an example and definitely not personal experience, gained a little too much weight for stretchy shirts to hold together properly
• Can be a fun fashion statement ("a wearable 3D print!")
• “Chunky buttons are in” - A fashion expert, probably
• Needs only about a gram of material to make a full set
• Small and can be printed very quickly, even at slow speeds
• If made right, they're also a spin-able fidget on your shirt (watch out for fabric snags)