Overview:
Norm considers a historic example of the classic marble roll, as well as a huge mechanical version located at Boston's Museum of Science. His own design emphasizes safety, proportioned for marbles too large for a child to swallow, while the entire unit is small enough to be portable. It is a relatively simple project, made primary on the table saw, that can often be constructed from workshop scraps.
Genre : Reality
Actors : Norm Abram
Release Date : 1994-02-05
Duration : 30 menit
Rating : ⭐ 0/10 (0 votes)
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