Snap-Fit Modular Design
The individual pie-cut sections are designed to snap together, allowing you to quickly add, remove and rotate segments while experimenting with different tube routes.
Each pie cut features 24 equally spaced rotational notches, with every notch representing exactly 15° of rotation. This makes it easy to accurately control and repeat the rotation between individual segments when creating complex three-dimensional tube routes.
Build complete bends, combine multiple bends or create complex routing without cutting or welding.
CLR Ratio Guide
The CLR (Centerline Radius) ratio determines the bend radius relative to the tube outside diameter. A lower ratio creates a tighter bend, while a higher ratio creates a more gradual bend.
| CLR Ratio | Bend Characteristic |
|---|---|
| 0.75D | Very tight radius |
| 1.0D | Tight radius |
| 1.25D | Medium radius |
| 1.5D | Long radius |
| 2.0D | Sweeping radius |
For example, a 50 mm tube with a 1.5D CLR has a centerline radius of 75 mm.
What you’ll get
✔ Complete bundle for one selected metric tube diameter
✔ All successfully validated pie-cut angles and CLR ratios available for the selected diameter
✔ High-quality, print-ready 3D models (STEP and/or STL)
✔ Designed to print reliably with standard filaments such as PLA and PETG
✔ Snap-fit modular pie-cut segments
✔ 24 rotational notches (15° per step) on every pie cut
✔ Individual pieces marked with diameter, angle and CLR ratio
✔ Suitable for exhausts, roll cages, intake piping, frames and general tube fabrication
✔ Compatible with most FDM 3D printers
✔ Recommended print settings and instructions
Instant Download
Select your required metric tube diameter and receive a bundle containing all successfully validated angle and CLR configurations available for that diameter.
Your files are available digitally so you can start printing and experimenting with different bend geometries right away.
Important
This is a digital product, not a physical item.
No product will be shipped. A 3D printer is required to create the tools yourself.
Personal-Use License
Your purchase includes a personal, non-commercial license. You may print the designs as many times as you like for yourself, friends and family, provided the prints are supplied free of charge.
The digital files may not be shared, redistributed or resold, and physical prints may not be sold or used commercially.
Each file is individually digitally watermarked upon generation/download, allowing unauthorized distribution to be traced back to the original purchase.
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