Quite relaxed the shunter holds on to the handrail of the wagon's balcony, giving handsignals to the driver.
The balcony and the railing have been reconstructed from brass.
The shunter has been fixed to the balcony, enabling a borehole to lead right through both shoulders into the corner of the wagon body.
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click for larger pictures !
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Through this borehole a brass wire (0,5 mm) leads into the wagon. Outside the shunter's arm is fixed to it, on the other end inside there is small crank with a small eyelet.
This eyelet takes the end of the con-rod (secured with a tiny lump of solder) that comes from the axle crank through the wagon's floor.
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The wagon's axle with the crank.
Two brass pieces with two drillings each are pressed to the axle. The second boreholes take a second piece of axle material (press fit!). Done this, the original axle is cut out between the crankwebs (use a micro grinding disc for this job). This procedure ensures a smooth run of the axle without wobbling.
The con-rod is clipped to this crank with its end which formes a small hook.
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The shunter's drive from underneath
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Cranked wheelset - Drawing not to scale.
A crank has - compared to an excenter - the advantage of a bigger throw.
The bigger the throw, the smoother the movement that results at the end of the mechanism.
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