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Building a GE 85 ton steeple cab: The new 3D print version arrives Journals/Blogs
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Super User 279 posts Tim Schwartz tschwartz Super User 279 posts
Tim Schwartz tschwartz

My initial 3D print arrived and I have done the pre fitting over the Atlas HH600/660 frame.

I am happy with the body but have found a few design issues with my trucks.

IMG_1804.jpg 

I print using Shapeways.com and here you are able to see right into the model and I don't have any clearance issues with the drive. 

IMG_1811.jpg 

When I did my original scratch build I wanted to make two operational units. Well that never happened but I did end up with a second body. Here you can see how close the two are to each other. I needed space for the motor and PC board to be able to use the the Atlas frame. The cab was enlarged by a scale 3ft so all fits.

IMG_1818.jpg 

I also needed more clearance for the drive. I added just a bit to the cab height as well which should give enough room to plug a simple decoder into the PC board.

 

Next time a bit about the trucks.

 

Tim Schwartz

 

Tim Schwartz Having fun in HO
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Jimbo 46 Active Member 59 posts
Jimbo 46

3-D

This is very interesting.  Can I ask you the cost of this service?

Jim Miller
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Tim Schwartz tschwartz Super User 279 posts
Tim Schwartz tschwartz

Printing cost

Eventually I plan on having this available to anyone at shapeways. You should be able to search it right now. To get the detail needed means expensive materials. I think body and trucks is about $70. Tim

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Rene Gourley renegourley Prolific poster 1,071 posts
Rene Gourley renegourley

How did it turn out for smoothness?

I found I needed to sand a bit to get a reasonably smooth surface. How did your's go?

Rene Gourley
Modelling Pembroke, Ontario in Proto:87

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Tim Schwartz tschwartz Super User 279 posts
Tim Schwartz tschwartz

How smooth?

Yes I will have to sand it. I did not add rivet details to the body expecting there would be a fair bit of roughness. After cleaning the model,I usually wet sand with a 1000 grit sand paper.

Tim Schwartz Having fun in HO
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Pflarrian Active Member 88 posts
Pflarrian

Plans?

Out of idle curiosity, (assuming you used them as a guide,) where did you get plans for this model? I ask because my current traction tinkerings involve S scale, and I have been trying to draft a set of plans for this very motor, with little to no success.
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Tim Schwartz tschwartz Super User 279 posts
Tim Schwartz tschwartz

Plans.

I have a copy of the assembly drawing provided by GE to HBM&S. That provided the basic dimensions and the rest is guess work.

Tim Schwartz Having fun in HO
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Pflarrian Active Member 88 posts
Pflarrian

I don't suppose...

You could share those dimensional datum? If no, I understand and can return to trying to draft my own. To be honest, I'm more looking for the 125-tonners than the 85 tonners, but thought the lighter one would serve as a starting point.
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Tim Schwartz tschwartz Super User 279 posts
Tim Schwartz tschwartz

Plans

I don't have the plans in a format I can share at this time. utahrails.net has loads of information including the 85 ton and others. Somewhere in there are a few dimensional diagrams that are about as good as I have.

Tim Schwartz Having fun in HO
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Pflarrian Active Member 88 posts
Pflarrian

Really?

Most excellent! Many thanks for the information.

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