G-Scale Arch Bridge - Modular System
Print Profile(1)
Description
🚂 Modular G-Scale Arch Bridge - High Precision Engineering
[🇩🇪 German] Welcome to the ultimate arch bridge for your garden railway (G-Scale / LGB)! This model is not just another 3D print; it is the result of true attention to detail and structural precision. It was designed from the ground up to not only look fantastic but also to assemble like a professional architectural model.
The bridge can be fully parameterized in OpenSCAD.
Length, width, profile heights – all easily adjustable.
About this Print Profile (The 3MF File): This profile contains a perfectly prepared bridge set:
- Total Length: 450 mm
- Segment Layout: 3 parts (150 mm each)
- Arch Height: 150 mm
- Special Note: Only the pure arch segments (without crossbeams and snap-fit hooks) – ideal for model builders who want to use their own track bed or individual base plates (walkways)!
Engineering Highlights:
- 🧠 Invisible Joints (Open Sleeve Gussets): The bridge segments aren't just glued butt-to-butt! The gusset plates at the joints are designed as open U-sleeves (forks). The adjoining half-beam slides perfectly horizontally into this fork – making the seam completely disappear inside the rivet plate!
- 📐 Mathematically Perfect Portals: No clunky rectangular boxes at the bridge ends! The portals feature custom-calculated trapezoidal gusset plates. They sit perfectly flush against the vertical pillar on one side and seamlessly follow the exact parabolic slope of the top chord on the other.
- 🔩 Rivet-Counter Approved: The rivets aren't just randomly placed. The underlying script calculates the true mathematical centroid of every plate (even the angled trapezoids!) and places the rivets with a perfect 4mm inset precisely into the corners.
- 🏗️ True Parabolic Geometry: The top chord doesn't use a cheap circular arc; it follows a genuine, mathematically calculated parabola for optimal load distribution.
Happy printing and building! I look forward to seeing your makes and pictures of your garden railway layouts!
[🇬🇧 English] Welcome to the ultimate arch bridge for your garden railway (G-Scale / LGB)! This model isn't just another 3D print; it's the result of true attention to detail and structural precision. It was engineered from the ground up to not only look fantastic but to assemble like a professional architectural model.
The bridge can be fully parameterized in OpenSCAD.
Length, width, profile heights – everything is easily adjustable.
About this Print Profile (The 3MF File): This profile contains a perfectly prepared bridge set:
- Total Length: 450 mm
- Segment Layout: 3 parts (150 mm each)
- Arch Height: 150 mm
- Special Note: This file contains the pure arch segments (without crossbeams and snap-fit hooks) – ideal for makers who want to use their own custom track beds, wooden planks, or walkways!
Engineering Highlights:
- 🧠 Invisible Joints (Open Sleeve Gussets): The bridge segments aren't just glued butt-to-butt! The gusset plates at the joints are designed as open sleeves (forks). The adjoining half-beam slides perfectly horizontally into this fork – making the seam completely disappear inside the rivet plate!
- 📐 Mathematically Perfect Portals: No clunky rectangular boxes at the bridge ends! The portals feature custom-calculated trapezoidal gusset plates. They sit perfectly flush against the vertical pillar on one side and seamlessly follow the exact parabolic slope of the top chord on the other.
- 🔩 Rivet-Counter Approved: The rivets aren't just randomly placed. The underlying script calculates the true mathematical centroid of every plate (even the angled trapezoids!) and places the rivets with a perfect 4mm inset precisely into the corners.
- 🏗️ True Parabolic Geometry: The top chord doesn't use a cheap circular arc; it follows a genuine, mathematically calculated parabola for optimal load distribution.
Happy printing and building! I look forward to seeing your makes and pictures of your garden railway layouts!
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including, but not limited to, publishing derivative works outside the Makerworld platform or hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money or collect fees. Subject to the above restrictions, derivative works may be published only within the Makerworld platform, and all such derivative works must be licensed under the same SDFL‑C license, without modification or additional terms. You may download the digital versions of this object, 3D print it, and display images, videos, or usage demonstrations of 3D printed versions of the object on personal social media platforms or Makerworld official channels, provided that no digital versions of the object are shared or distributed.
Comment & Rating (0)