We have compiled a guide with instructions and ”do’s and don’ts” for using The Olsson Ruby nozzle which you can find on our support webpage using the below button.

Instructions For Use

Improvement suggestions are always welcome, let us know via email at

The Olsson Ruby installed on a Ultimaker 2+

The Olsson Ruby, installed on an Ultimaker 2+

Frequently asked questions

What is the Olsson Ruby?

It’s a unique nozzle for 3D Printers, designed to print highly abrasive materials while retaining the excellent heat conductivity of brass. It works equally well for printing common FDM / FFF 3D printing materials.

What is the benefit compared to standard brass nozzles?

The tip of the nozzle consists of a ruby gemstone – technically Aluminum Oxide – which is a very hard material.
This means that it is very durable even when printing exotic materials containing abrasive materials. See list of tested materials.

Some people have also seen an improved surface finish with the ruby tip (compared to pure brass).

Are there any downsides compared to a standard brass nozzle?

So far, we have only seen benefits. Join the discussion on the Internet forums.

What is the benefit compared to stainless steel or other, coated, nozzles?

Since the base material is still brass – which has an outstanding heat conductivity – the Olsson Ruby has a big advantage to most other materials (for example stainless steel). Also, the tip is made out of ruby which is very hard and durable. We believe that nozzle designs with different coatings will wear off quite quickly when continuously printing/grinding towards an abrasive material (the model being printed).

Which 3D Printers is the Olsson Ruby compatible with?

We have designed The Olsson Ruby to be compatible with the popular form factor of a nozzle with a 7.5mm long M6x1 external threading, like the range of Olsson Nozzles used on the Olsson Block for the Ultimaker 2, and on the E3D hotends. This list is compiled both of the printers we have tested and some we believe will be compatible from looking at specifications.

2.85mm versions:
Ultimaker 2+
Ultimaker 2+ Extended
Ultimaker 2 with Olsson block upgrade
Ultimaker 2 Extended with Olsson block upgrade
Ultimaker Original *1 *2
Ultimaker Original+ *1 *2
Lulzbot TAZ 3 with hexagon hotend upgrade *2
Lulzbot TAZ 4 with hexagon hotend upgrade *2
Lulzbot TAZ 5
Lulzbot TAZ 6 *2 *3
Every printer with a E3D V4 3.0mm hotend *2
Every printer with a E3D V5 3.0mm hotend *2
Every printer with a E3D V6 3.0mm hotend *2

1.75mm versions:
(in beta testing, iterations being performed)
Every printer with a E3D V6 1.75mm hotend, including:
Prusa Research i3 MK2
E3D BigBox

*1 = You will need to adjust the fan shroud since the nozzle is shorter than the original nozzle.
*2 = You will need to mount it with the nozzle not placed against the front face of the heater block but against the heat break/isolator tube to create a seal.
*3 = Will require disabling of the automatic bed leveling since the ruby tip is not conductive.

What materials can I print with the Olsson Ruby?

You should be able to print with any material you normally print with a standard brass nozzle, but with the benefit of lasting longer when printing abrasive materials. It has been tested by many (50+) beta testers alll over the world with a lot of different materials, including:
Colorfabb XT
Carbon filled (Colorfabb XT-CF20, Formfutura CarbonFil and other brands)
Metal filled (Colorfabb SteelFill, Brassfill, Copperfill)
Boron Carbide-filled ABS
Ultimaker CPE
Ultimaker TPU95A

(As always, your particular 3D Printer, material and slicer settings used will play the biggest part in the result, regardless of the nozzle type)

What models/sizes are the Olsson ruby available in?

2.85mm filament / 0.4mm diameter: Available (released December 2016)

We have several models/sizes planned, however doing test iterations with new ruby nozzle geometries is affected by quite long lead times due to the complex manufacturing process. It helps us to prioritize if you submit your interest in the model/size you are most interested in as per below.

2.85mm filament / 0.6 diameter: Release planned for Q1/Q2 2017 – Submit interest
2.85mm filament / 0.8 diameter: Release planned for Q1/Q2 2017 – Submit interest
1.75mm filament / 0.4 diameter: Possibly Q1/Q2 2017 – Submit interest
1.75mm filament / 0.6 diameter: Possibly Q1/Q2 2017 – Submit interest
1.75mm filament / 0.8 diameter: Possibly Q1/Q2 2017 – Submit interest

Who invented the Olsson Ruby nozzle?

The Swedish research engineer Anders Olsson from Uppsala University. Full story.

Who manufactures the Olsson Ruby nozzle?

3DVerkstan from Sweden. Read more