Skip to content

Model Train Bridge (Functional, Modular, & Scalable truss bridge)

Creation's quality: 5.0/5 (1 vote)
Evaluation of members on the printability, utility, level of detail, etc.
  • 1 download

3D model description

This is a large scale project designed originally to replace large O-Scale Truss Bridges on a large scale layout. In it's current size it will function perfectly on any O-scale/similar sized layout. Plenty of examples of the bridge in use can also be found on my site:

Currently consisting of 13 separate models. No support material needed to print any of the models technically, though a small amount to support the slide insert on a few pieces is suggested. I took a lot of time to make sure this worked out perfectly for how my father needed for his layout.

It can be scaled to different sizes and still retain its full function. No adhesive or clue is required. All pieces slide and/or snap together. There are separate roof/coverings that allow for full or partial coverage of the bridge all the way across. I designed this specifically to be very user friendly to not only print, but use as well. It's extremely strong, even at just 25% or so infill.

Pieces slide together with some pieces having multiple versions to allow an endless amount of pieces to be added. Currently on our personal layout there are two 4-6ft bridges utilizing these exact models.

Filenames correspond to their function/use. There are a couple side/top pieces to allow for multiple combinations of looks. Jimmy Stars is made in remembrance of my brother and his favorite team the Stealers, which is what the star pattern/name on that particular small model mean.

Please follow up with any comments/issues or potential requests. All those who purchase the bridge in its original form will be supplied any updated models applied to this project free of any additional charge. I make sure to email and keep those updated when changes are requested.

Thanks and enjoy!

3D printing settings

Printer Used: Creality Cr10S & Ender 3 Pro

Layer Height: 0.2mm recommended (the +/- variance on the slide is very tight to allow for it to be very snug)

Material: Tianse PLA is used in most pictured Black & Blue examples.

  • 3D file format: STL
  • Last update: 2019/12/07 at 04:10
  • Publication date: 2019/08/26 at 21:16





Software Developer by trade, I work on designing, modeling, and producing innovative solutions using up to date software development, CAD, and 3D printing technology.

Email/message for design requests. I'm always open to new ideas! :) for additional models and project details.

IG: @the3dcoder & @3dcdesigner

Issue with this design? Report a problem

Collection associated with this 3D model

Makes created by the community

Best sellers of the category Various

Add a comment

Would you like to support Cults?

You like Cults and you want to help us continue the adventure independently? Please note that we are a small team of 3 people, therefore it is very simple to support us to maintain the activity and create future developments. Here are 4 solutions accessible to all:

  • ADVERTISING: Disable your AdBlock banner blocker and click on our banner ads.

  • AFFILIATION: Make your purchases online by clicking on our affiliate links here Amazon or Aliexpress.

  • DONATE: If you want, you can make a donation via PayPal here.

  • WORD OF MOUTH: Invite your friends to come, discover the platform and the magnificent 3D files shared by the community!