Free 3D Printed Epoxy Mixing Nozzle for Ramset ChemSet – Save $15 Per Pack

A 5-pack of Chemset mixing nozzles costs $12.60 at Bunnings — and you throw them away after one use. The TekOnline Epoxy Mixing Nozzle Generator lets you print unlimited nozzles for a few cents each. Customise the length, outlet diameter and mixing vanes to match your cartridge system.

Open the Epoxy Mixing Nozzle Generator

The cost problem with mixing nozzles

Chemical anchor cartridges (Ramset ChemSet, Powers Pure Epoxy, Hilti HIT) use static mixing nozzles that combine the resin and hardener as you dispense. These nozzles are single-use — once the epoxy cures inside, the nozzle is solid. A single pack of 5 nozzles costs between $10 and $18 at Australian hardware stores:

If you use 20 nozzles on a project (common for a deck or retaining wall), that is $50 in nozzles alone — or $2 worth of filament.

Does a 3D printed mixing nozzle actually work?

Yes. The internal geometry of a static mixing nozzle is a series of alternating helical elements that split, rotate and recombine the fluid stream. The TekOnline generator reproduces this geometry accurately. The printed nozzle threads onto standard cartridge luer-lock fittings and mixes the two components as you dispense.

Key design features:

• 18 mixing vanes: alternating-left-right helical elements for thorough resin/hardener blending
• Standard thread: compatible with 13 mm cartridge outlets (ChemSet 101, 801, Max, Pure Epoxy)
• Tapered spout: narrows from 8 mm to 3 mm for precise placement into drilled holes
• Ribbed grip: external ridges for easy attachment and removal

Generator parameters

• Nozzle Length: 30 mm to 100 mm — longer for deep holes, shorter for overhead work
• Outlet Diameter: 2 mm to 6 mm — match to your drilled hole size
• Number of Vanes: 6 to 30 — more vanes = better mixing but higher back-pressure
• Wall Thickness: 1 mm to 3 mm — affects strength and filament usage

Compatible adhesive systems

The generator’s thread profile fits standard 13 mm cartridge outlets used by:

• Ramset ChemSet 101: pure epoxy, 1:1 ratio
• Ramset ChemSet 801: pure epoxy, 3:1 ratio (needs different cartridge, same nozzle thread)
• Ramset ChemSet Max: epoxy acrylate, fast cure
• Ramset ChemSet Reo: vinyl ester, 10:1 ratio
• Powers Pure Epoxy: 1:1 ratio, same thread standard
• Hilti HIT-HY 200: same 13 mm outlet standard

Note: the cartridge itself must match your adhesive system. The nozzle only fits the outlet — it does not adapt between cartridge types.

Printing tips for mixing nozzles

• Print in PETG or ABS — PLA softens at 60°C and may deform under sustained dispensing pressure
• Use 0.2 mm layer height or smaller for clean vane geometry
• Print with the nozzle upright (vertical) — the vanes print cleaner this way
• Add a brim to prevent the tall, narrow part from detaching mid-print
• Do a test dispense before using on a critical structural anchor

Safety note

3D printed mixing nozzles are for non-structural, non-critical applications where incomplete mixing does not risk life or property. For structural anchoring (balcony rails, beam connections, safety barriers), use manufacturer-supplied mixing nozzles. The printed nozzle is a cost-saving tool for general fixing, fencing, shelving and DIY projects.

How to generate a mixing nozzle STL

1. Open the Parametric 3D Generator
2. Select Epoxy Nozzle from the generator dropdown
3. Set nozzle length, outlet diameter and number of vanes
4. Click Generate Preview to see the 3D model
5. Download the STL and print

Generate a free Chemset mixing nozzle STL now