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Comment: Re:Impressed yet disappointed with Lego (Score 1) 60

by g5g5g5 (#46523215) Attached to: Lego Robot Solves Rubik's Cube Puzzle In 3.253 Seconds

Acetone is the most simple method. Nail polish remover is 70%, but 100% is available at hardware stores.
Brush it on both pieces and put them together. In 5 minutes they are permanently bonded as one piece of plastic.
The Lego Group uses other less user friendly solvents to do the same thing. MEK and GBL

The number of arguments is unimportant unless some of them are correct. -- Ralph Hartley