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….........................--- U.P. N Scale Rotary Snow Plow ---

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Recently Norm on nscale.net post a build of a rotary snow plow that he had done ( HERE ). The blade spins and he is using a sound decoder for sound. I thought this would make an interesting project so ordered the Tichy Trains N scale rotary snow plow that he had used.

He used the stock frame and mounted an electric motor on it. I designed a frame with fusion where the motor sits a bit lower to align with the shaft going to the blade and has a bearing block that holds two 2mm ID ball bearings. I got that working but then decided to see if I could design a rotary snow plow around one that U.P. had. It was build in 1922 and retired in 1969. It also had been converted from coal fired to oil fired in '49-50'.

The following is Part 1 of the build.

I found a drawing of the snow plow on utahrails.net. A great site if you are into Union Pacific. I used it to try and get the model somewhat accurate, maybe 80%-90%.

I inserted the drawing as a 'canvas' into Fusion and re-calibrated it to N scale size.

I couldn't find a drawing for the left side but from pictures and a model of the snow plow came up with I thought was close (above).

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Above is the first print. It came out pretty good but there are some problem areas that need to be addressed. Not much and I think I know what I need to do (check back or see if the next page has the corrections).

The ladder was only attached to the body at the top and bottom. The print was done at 45 degrees and it sagged while printing. I believe a couple more attach points between the bottom and top on the back side of the ladder will fix that.

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Above the blade is sticking out a bit as it was a little oversize in diameter. The one, bottom right, should fix that.

The shrink wrap (above) worked well as a coupling. I might stick with it or look at designing a 3D printed coupling.

Above the shell is sitting on top of the frame and front wall. It is setup to work with MT trucks.

He new model looks smaller above but was further from the camera. They are almost exactly as long (the new one is a touch longer actually). More to follow in a couple days hopefully.

To be continued and a link to this whole build ( HERE ).

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