A model train helix is a spiral ramp that enables trains to transition between layout levels without needing tons of horizontal space. It’s not just practical—it also adds a dynamic, operational element to any layout.
Why Use a Helix?
Helixes effectively transform flat 2D layouts into multi-level ones, boosting operational interest and realism. They allow you to include hidden staging yards and extended mainline runs without expanding your footprint.
Key Considerations When Building a Helix
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Radius & Footprint
Use the largest radius your space allows; it smooths train movement. Calculate using your layout’s smallest dimension: radius ≈ (min L/W ÷ 2) – clearance. -
Grade (Incline)
Keep the incline gentle—ideally under 3%—to prevent engine strain and ensure smooth climbs. -
Clearance Between Levels
Ensure vertical space is enough for your tallest equipment, plus structural supports. -
Structure Stability
A helix must be sturdy and well-aligned to avoid derailments—stability from the base is essential. -
Accessibility
Consider how you'll reach trains inside the helix for maintenance. Allow access via removable panels or observation hatches.
Why Proses Helixes Stand Out
Building a helix from scratch often means plywood, trial-and-error, and alignment headaches. Proses Helixes avoid those pains by offering:
- Modular Design – Easy to assemble, customizable, and scalable per your layout needs.
- Precision Engineering – CNC-cut paths and supports ensure accurate curves and consistent grade.
- Custom Options – Multiple radii, scales, and level counts to match your layout.
- Long-Term Durability – Materials built to last, maintaining alignment over time.
- Quick Assembly – Get your helix running in hours—not weeks—so you can focus on running trains.
