Review on Wood Trick Adult Wooden Puzzles by Steve Snyder

Having made over 25 wooden models/puzzles I have to say I have never made one that requires more sanding and waxing of parts. I'd say you spend about 70% of your time sanding and waxing, about 20% assembling it, and about 10% trying to figure out why it's not working. Additionally, by assembling two mirror halves of the model plus the same caterpillar threads that match the two halves, the repetition of assembly leads to a state of utter boredom. In any case, this model was NOT fun to build, and then it didn't work either! I'm not sure if I did something wrong or something else when winding the spring, but I can't figure out what the problem is. I know the spring/motor works fine as long as the two halves of the rail are not connected. Maybe the spring just isn't strong enough to launch the model. In any case, I would reject this model!