HO Model Train Flex Track Guides
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Variety of radius and straights for laying flex track and planning model train layouts.
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Model information
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- Printables
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- Tools
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- Creative Commons — Attribution — Noncommercial
Multiple radius and straights for laying model railroad track. Curves have a 5 and 10 degree turn radius. All pieces lock in with each other. All parts contain the number embedded into the track to show the radius or length.
If you want any specific sizes or dimensions please let me know.
2021-10-17: Added 40 inch (1,016 mm) radius.
2022-09-10: Added Peco and Hornby Radius 1, 2, 3, and 4.
2022-11-10: Added 31in (787.4mm), 32.5in (825.5mm), and 33in (838.2mm) curves.
2023-12-20: Added Lima R1 (360mm) and R2 (431mm).
2024-03-17: Added 22in (558.8mm) and 24in (609.6mm) curves.
2024-03-24: Added 4x Lima Straights.
2024-09-07: Added 42in (1066.8mm) curves.
2025-01-26: Added 18in (457.2mm) curves.
2025-03-08: Added 19in (482.6mm) curves.
2025-05-17: Added 15in (381mm) curves.
2026-01-18: Added 21in (533.4mm) curves.
2026-06-14: Added 48in (1219.2mm) curves.
Straight
1 in (25.4 mm)
2 in (50.8 mm)
4 in (101.6 mm)
6 in (152.4 mm)
8 in (203.2 mm)
10 in (254 mm)
Curve Radius (5 and 10 degree)
14.2 in (360mm) Lima R1
14.6 in (371mm) Hornby R1
15 in (381mm)
17 in (431mm) Lima R2
17.2 in (438mm) Hornby R2
18 in (457.2mm)
19 in (482.6mm)
19.8 in (505mm) Hornby R3
21 in (533.4mm)
22 in (558.8mm)
22.5 in (572mm) Hornby R4
24 in (609.6mm)
26 in (660.4 mm)
28 in (711.2 mm)
28.5 in (723.9mm)
30 in (762 mm)
31 in (787.4 mm)
32 in (812.8 mm)
32.5 in (825.5 mm)
33 in (838.2 mm)
34 in (863.6 mm)
36 in (914.4 mm)
38 in (965.2 mm)
40 in (1,016 mm)
Track Sets
Lima
1st radius 36 degree
1st radius 18 degree
1st radius 9 degree
2nd radius 30 degree
2nd radius 22.5 degree
Straight Track (55.5 mm)
Straight Track (111 mm)
Straight Track (166.5 mm)
Straight Track (222 mm)