thingiverse
Spiro-graph coasters (Cup/Glass/Beer/Wine Mats) and holder
Somewhere to put down your charmed glasses http://www.thingiverse.com/thing:8920
Print them in glow-in-the-dark ABS to help your party goers find them!
The holder will hold up to 6 coasters.
Added one with a thin back for NYCDesigner and anyone else who wants to try a two colour print!
The domed one is for Bluemetal to try as a speaker cover I wouldn't use this as a coaster unless you really want to confuse your drunk guests (and don't mind the mess :)
Instructions
You know what to do...
Direct link to the original creator's page
pinshape
cgtrader
myminifactory
cults3d
thingiverse
thingiverse
thingiverse
prusaprinters
Click the "View on thingiverse" button above to visit the original model page on thingiverse. You can download the STL file directly from the creator's page for free.
This STL file is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
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Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer. Check the license on the original thingiverse page to see if modifications are permitted by the creator.