37.5 mm Gauge Track (L-Gauge) Heavy Duty

37.5 mm Gauge Track (L-Gauge)

This is a 37.5 mm gauge track system, comparable to L-gauge rail. The design is optimized for 3D printing and modular assembly, allowing straight, curved, and mixed track layouts using interchangeable joiners.

Rail Profile Dimensions

• Gauge: 37.5 mm
• Base width: 15 mm
• Overall rail height: 12 mm
• Rail head (ball) width: 4 mm
• Rail head radius: 0.5 mm
• Web width: 2 mm
• High side of base: 3 mm
• Low side of base: 1.5 mm

Ties (Sleepers)

• Height: 7 mm
• Width: 8 mm
• Length: 65 mm
• Spacing:
  • Straight track: 20 mm
  • Curved track: ~20 mm

Track Geometry

• Straight track length (assembled):
  • 400 mm (40 cm)
• Curved track:
  • R500 mm radius
  • 1 meter diameter circle
  • 45-degree sections
  • 8 sections form a full circle (360°)

Hardware Required (Per Track Section)

• M3 x 8 mm screws with nuts — 16 total

Included Components

• Straight track sections
• Curved track sections
• Track joiners, including:
  • Straight-to-straight joiners
  • Curve-to-curve joiners
  • Straight-to-curve joiners