How to make QR code coasters
- Replace the example with your own link: a menu, a Wi-Fi page, a review page or a table-ordering page.
- The round coaster base is chosen, 95 mm across. Keep the print plaque look for a flat, easy-to-clean surface, or try engraved for a code sunk into the top.
- Download the STL and print a set. With one nozzle, change filament at the layer the print guide gives, so the code comes out dark on a light coaster.
Getting a coaster to scan on a busy table
Coasters get wet, scratched and photographed at an angle in dim light, so give the code every advantage: strong contrast, a matte filament, and no glossy clear coat that throws reflections. The quiet zone is part of the round base, so keep the rim clear of stickers and logos.
A link you control is worth setting up before you print a stack of coasters. Point the code at a page on your own site, and you can change the menu or the Wi-Fi password behind it without reprinting anything.
Engraved coasters
The Engraved look turns the coaster around: the base is dark and the light modules stand up from it, so the code is carved into the top. Condensation collects in the pits instead of on the code, and the raised light surface wipes clean. Print it with the dark filament first and change to the light one at the layer the print guide gives.