NZFMM 1999 Auckland Convention page 10

Ping Pong Ball Colliery by John Hansen

Ping Pong Ball Colliery

Based on the model on pages 28 to 42 of the March 1997 Constructor Quarterly.  In the model a truck is arranged to pick up seven table tennis balls, one at a time, from the Pithead end of the model and deliver them to the Elevator end where, on arrival of the seventh, they are returned back to the start at the Pithead.  The model is fully automatic and designed with the aim of maximum audience attraction and unattended performance one set up.

.5" x .5" Angle Bracket, part 12Part 12

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