PTFE Tube Cutter – Perfectly Cuts Bowden Tubes
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Bill of Materials
Description
This parametric PTFE Tube Cutting Jig is designed to give you perfectly square, repeatable cuts on Bowden/PTFE tubing. Clean cuts matter — especially for printers that rely on tight tolerances inside the hotend or extruder. A crooked cut can cause clogs, gaps, or inconsistent extrusion. This jig fixes that.
Built in OpenSCAD, the model is fully customizable: tube diameter, blade thickness, jig length, wall thickness, and optional viewing window are all adjustable. The default settings are tuned for 4mm PTFE and a 0.65mm utility blade, but you can adapt it to any hose or blade you want.
Features
- Perfectly square cuts thanks to a long alignment channel
- Parametric design — customize every dimension in the SCAD file
- Blade slot sized to your blade thickness for clean, controlled cuts
- Optional viewing window to see your cut mark without removing the tube
- Ergonomic side grips that reduce material and improve handling
- Strong walls to keep the tube firmly aligned
- Prints without supports
Default Dimensions
- Tube OD: 4.2 mm (4mm PTFE + clearance)
- Blade thickness: 0.65 mm
- Jig length: 30 mm
- Wall thickness: 4 mm
How to Use
- Insert your PTFE tube through the channel.
- Align your cut mark with the viewing window (if enabled).
- Slide a utility or X‑Acto blade through the slot.
- Press straight down for a clean, square cut.
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John_M | Published - MakerWorld
License
You may create derivative works based on this object, provided that all such derivative works are published exclusively on the MakerWorld platform and include proper attribution to the original creator. You may not share, upload, host, distribute, or publish this object—or any derivative work of this object—on any other digital platform, marketplace, or distribution channel. Commercial use of this object and any derivative works is strictly prohibited. This includes, but is not limited to, selling, renting, sublicensing, or using the object in any context in which you receive monetary compensation or other financial benefits.
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