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Bruce Hansen's Erector Electromagnet Loader

Bruce writes: "Keeping with Dr. Prune's nice idea of organizing models by type, I'll start building the 12½ ones. The first one in the series (excluding the Walking Giant and Half Track already built by Dave Ware) is the Electromagnet Loader. The model was built from a 1950 12½ set pictured in the background. The model picks up steel with the electromagnet and deposits it on the opposite side of the model.


Here's the outlet ramp.

The model uses a P55 motor taken from the American Flyer train line and is powered by a transformer. A control box with two buttons operates the motor in either direction when the appropriate button is pressed.

When the model is started, the magnet is at its bottom position.

As the motor winds up the string, the electromagnet raises. The electromagnet is wired to the motor; it's under power only when the motor is running. The magnet is raised up until it bottoms out on the trolley which is contructed of strips and P7A pulleys. At that point, the trolley starts to travel up the DP angle girder ramp into the tower. When the trolley reaches the top of the ramp, the operator releases the control box button which stops the motor and deactivates the electromagnet. The steel load drops down a steep ramp, hits the yellow MC base backstop, reverses travel and leaves at the outlet ramp.


The model works really well. The only problems I had in building it were solved by using the parts as pictured instead of as labeled (errors in the manual; MD mislabeled in the top ramp - should be BE/MF angle girder/plate and MB angle girder mislabeled for the trolley ramp - should be DP angle girder). The other problem was attaching the top ramp to the overlapping MN baseplates at the top of the model. As pictured, you need to run a screw through two small overlapping holes; good luck. I moved the ramp up one row so it was attached at overlapping small/large holes in the baseplate. Later in the series I'll build the 1956-62 version which is similar but is powered by an A49 motor and differs from the 1950 version by having a separate switch/battery arrangement for powering the electromagnet."