USRA MMP Boiler

Design by DocG

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USRA boiler for mikado, pacific and mountain-Z scale

cm: 1.532 w x 1.664 d x 7.134 h

in: 0.603 w x 0.655 d x 2.809 h

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hermonatpaull says:

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Doc- I think everyone in Z world would be excited about your steam loco projects. Can you please keep us updated here? Thanks. -Paul

May 27, 2011, 5:43 pm

DocG says:

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Paul, Thanks for your interest. I am actually building a whole new drive system-- not to go on Marklin Chassis, but one of my own design. After I get the rest of the pieces uploaded, I'll see if the system works and start manufacturing if it does. I'm using Shapeways as a protoyping system...go figure :). I'm planning on an entire line of American steam in the future. I'm starting with USRA as there were a lot of lines that used it during that era. I'm also setting it up so there are added pieces to change the boiler (e.g., a firebox addition piece to make the boiler for a K4 / M4). I just haven't gotten to it quite yet. Doc BTW, you're right. It's build on a 1:200 scale to account for the flange width on the drive wheels. I'll be adding some system details that make it where it will (hopefully) pull prototypically as well.

May 19, 2011, 6:00 pm

hermonatpaull says:

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WOW! This is an excellent shell, I think slightly oversized like many other Z locos. That is appropriate. However, it will require significant modification to fit onto a Marklin chassis. I assume this is what is intended, right? Can this be worked on? I always want more details. The handrail was loose on one unit. The USRA shell is very useful and can be used for many roads, but your success makes me think of many others I would like to see done. Various tenders. Other locos: B&M P4 4-6-2 (Steamtown). B&M R1 4-8-2. PRR K4 4-6-2. PRR M1 4-8-2. NYCs various 4-8-2s. On and on and on. Great effort! More please. -Paul

May 17, 2011, 1:04 pm