If you have young children that aren't too careful with open cups, or if you'd just rather not have to worry about accidentally elbowing your drink, then this convenient little holder would help you out a lot. It keeps your cup from tipping over easily, AND
acts as a coaster to protects your tables and counters.
This Instructable is going to show you how to make a 3D printable drink holder on 123d Design ( http://www.123dapp.com/design
) that drastically decreases the chances of your drink tipping over, acts as a coaster, and can be washed.
Now, the attached is an stl. file
of the holder I made (No, the poorly made soda can isn't included). It will fit drinks with a diameter of 7 cm or less (most soda or beer cans, bottles, and cups). You can download mine, or If you want to make a larger or smaller holder, I'll leave a formula at the end of this Instructable so you can plug in your own measurement, get the angles right, and have a holder that's to scale when printed!
First thing is first, download the desktop version of 123d Design at http://www.123dapp.com/design
, open a new project, and change your unit to cm if it isn't already!