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Building a GE 85 ton steeple cab: Testing the side pantographs and other updates Journals/Blogs
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Super User 279 posts Tim Schwartz tschwartz Super User 279 posts
Tim Schwartz tschwartz

I did a light primer coat to protect the Micro Mark rivet decals I put on and to find more printing flaws.

I tried using my "green" filling putty on some of the flaws but it was not sticking to the printed body. I will have to look into that for any future work.

I decided not to worry about some of the flaws, instead I will make it look well used when I am done.

I put a number of the grab irons on but still have more to go.

Also installed the lights I chose for the project.

I also am in the process of test fitting the side pantographs.

To allow the pantographs to turn I elected to leave the pivot rod long and put it through the cab roof.

When I am ready to make them permanent I will cut the rods shorter.

[attach:fileid=/sites/model-railroad-hobbyist.com/files/users/tschwartz/85-with-panto-test.jpg][attach:fileid=/sites/model-railroad-hobbyist.com/files/users/tschwartz/85-with-panto-test-truck.jpg]

Since it is snowing and miserable out again, I am going to work on making some steps.

 

Until next time.

 

Tim

 

Tim Schwartz Having fun in HO
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Stephen A. Shaffer New member 11 posts
Stephen A. Shaffer

Fine model!

Hi Tim,

Your model is looking better and better.  I'm impressed by it and by what can be done with 3D printing.  I can already see that it will have a big impact on our hobby.  Thank you for bringing it to us in such clarity.

 

Stephen

 
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Tim Schwartz tschwartz Super User 279 posts
Tim Schwartz tschwartz

The future of 3D

I expect the costs of printing to come down and the quality to go up. Printing thin and strong is not quite there yet in HO. One nice feature is that duplication of your " scratch build" is one click away.

Tim Schwartz Having fun in HO
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Benny MRH Author 7,134 posts
Benny

...

Tim, I dare say you have already proven the technology is here right now.  It's only going to get brighter from here.

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Benny's Index or Somewhere Chasing Rabbits
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IrishRover Prolific poster 1,660 posts
IrishRover

SWEET

This is a fine looking locomotive!  I love the steeplecabs--though 3d printing isn't in my immediate future.  I've never seen side pantographs before--they are very distinctive!  What's the purpose?  They are so far off the centerline that I don't see how they would work.
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Tim Schwartz tschwartz Super User 279 posts
Tim Schwartz tschwartz

Side Pantograph

This locomotive and other styles were used in mining where they had to work beside large shovels. In order to provide power to the locomotive and not have the shovel interfere with it, the power was offset to the side of the track on the opposite side the shovel was working on. The engineer would swap the two pantographs.

Take a look at this video it shows it well at about 1:40.

Tim Schwartz Having fun in HO
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