Universal Bracket for PTFE Quick Connector 4mm

This bracket is designed to offer a simple and effective solution for mounting quick connectors for 4mm PTFE tubes.

Unlike traditional supports, this bracket is not tied to a specific 3D printer:

it can be fixed to any surface or structure where you need to guide the filament.

It is ideal for those using external spool holders, multi-feed systems,

or simply wishing to create a custom friction-free filament path between the spool and the print head.

⚙️ Technical Specifications

Tube Compatibility 4mm outer diameter PTFE / Reinforced PTFE

Connector Mount M6 internal thread for standard quick connectors

Bracket Mount 2.2mm through-hole for 2.5mm self-tapping screws (can be carefully drilled out to fit other screws)

Assembly Time ~2 minutes

Usage Quantity

Single or multiple, depending on the desired filament path

🖨️ Print Settings

The downloadable file is in .3MF format, which includes slicing settings already optimized to ensure precise threading and a clean aesthetic.

Recommended Material: PLA ✅ (tested)

Layer Height: 0.16 mm

Infill: 15%

Supports: Not required

Orientation: Print with the base flat on the bed (see photos)

🔧 Assembly Instructions

Follow this order for a secure fit without stressing the threads:

Pre-assembly: Screw the quick connector into the bracket's M6 thread before mounting the bracket to the structure.

Mounting: Position the bracket at the desired point and fix it through the 2.2mm hole using a 2.5mm self-tapping screw (or adapted screw).

Tube Connection: Insert the 4mm PTFE tube into the connector until it bottoms out.

⚠️ Important Notes & Disclaimer

Print Tolerances: Thread dimensions may vary slightly depending on your 3D printer's calibration, even between prints of the same model.

Tight Thread? If the M6 connector feels difficult to screw in:

❌ DO NOT force it.

✅ Screw and unscrew gently several times ("cold tapping") to adapt the tolerances.

✅ Proceed with patience until the fitting is complete.

Reliability Tested:

The model has been validated for 3 consecutive days under real load

(consumption of ~1kg of PLA) without failure, detachment, or stability issues.

🛠️ Support & Customization

Do you need a specific variant?

Different mounting hole diameter?

Alternative thread (e.g., M5)?

Modified dimensions or angles?

Feel free to contact me:

I am available to add print profiles or modify the model based on your needs

to make this tool even more useful for the community.