Introducing the Rotary Engine Coaster, or the aptly named, “Coastary”.

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This design is inspired by the iconic Mazda Wankel engine. A holder can be printed to securely hold four coasters at once.

I have tested this with various glass and mug sizes, and have yet to find one that doesn't fit. Having printed these in PLA, hot drinks do not affect the model in any way, so no need to worry about deformation!

Coaster Dimensions/Information

• Corner to corner is approx. 102 mm.

• 5 mm thick.Holder Dimensions/Information

• 60 mm x 40 mm base.

• 40 mm tall

• Holds 4

This is a 3d printed item!