If you’ve ever built a helix (or tried to), you already know the pain points: unclear dimensions, changing grades, re-cutting parts, and “almost fits” assemblies.
Helix Builder™ is our new digital design-and-build package that lets you confidently plan your helix and generate an accurate cut list—then build using our proven shop drawings and photo references.
What You Get
- Helix Builder (browser-based tool) with Imperial/Metric toggle
- Real-time cut list generated from your inputs
- 10 shop drawings with constant measurements, drilling locations, assembly markings, and material recommendations
- Helix style examples (circular, elongated oval, return-loop concepts, multi-level entry/exit guidance)
Why It’s Different
- Not just “the math” — this is a build-ready system
- Supports fractional turns and multiple configurations
- Includes a Total Run output to estimate total track length
- Includes Maximum Clearance so you can verify equipment clearance
Get Helix Builder here: Helix Builder™ Digital Package
How Helix Builder™ Works (and Why It Saves You Time)
Helix Builder™ was created to solve the two most common helix frustrations:
- Design uncertainty (grade, turns, footprint, clearance)
- Build complexity (repeatable parts, consistent assembly, accurate cuts)
Step 1: Enter your key design inputs
- Imperial or Metric
- Rise per turn (your clearance target + allowance)
- Maximum grade target
- Radius and roadbed width
- Segments (12 minimum; higher counts support elongated/oval and return-loop styles)
- Turns (including fractional turns in 1/12-turn increments)
Step 2: Review the outputs
- Total Rise (overall helix height)
- Total Run (total track length estimate)
- Maximum Clearance (confirm equipment clearance)
- Inside / Outside dimensions for circular and elongated footprints
Step 3: Build from proven shop drawings
Your package includes a full set of shop drawings (plus photo references) so you can cut parts efficiently and assemble accurately.
Helix Builder™ Digital Package:
Click here to view details and download
Helix Builder™ FAQ + Design Tips
Is Helix Builder™ just a calculator?
No. Many online tools stop at grade/turn math. Helix Builder™ is a build-ready design system that generates a cut list and is supported by shop drawings and assembly guidance.
Can I build something besides a basic circular helix?
Yes. Helix Builder™ supports:
- Standard circular helixes
- Elongated / oval helixes (more run = lower grade if you have space)
- Return-loop concepts (advanced configurations with guidance)
- Multi-level entry/exit approaches (includes photo examples)
What grade should I use?
Lower is almost always better. If your grade is higher than you’d like, the fastest improvement is usually increasing the radius and/or choosing an elongated (oval) configuration to increase total run.
Does it help me estimate track length?
Yes—Helix Builder™ outputs Total Run, which makes it easy to estimate total track requirements before you start.
What’s included?
- Browser-based Helix Builder tool (Imperial/Metric)
- Cut list generated from your inputs
- 16-page Shop drawing package with dimensions, drilling locations, and assembly photo references
- 22 Introduction/informational pages with photo references to help you select a configuration and build accurately
- 9-page Assembly instructions
Ready to design yours?
Get Helix Builder™ here
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Last Updated on 1 minute ago ago by James from Model Railway Techniques
