Newton’s Gravity Defying Puzzle

grabcad

A recent challenge was left on my desk: remove the "rocket" from a cup without spilling or using tools. However, there's no obvious grip point! See the video if you're stumped. I usually create wooden projects, but lacked a lathe, so opted for a 3D print based on the original dimensions. CAD files are provided. The wood version can be bought here: http://amzn.to/2hV9NL0