Questions & Answers
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 up to 300C.
There is also a high temp version of the Olsson Ruby, enabling the use of high temp materials up to 500C.
Read more about the High Temp version below
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 a improved surface finish with the ruby tip (compared to brass nozzles).
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 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. Our experience is that nozzles with different coatings will wear off quite quickly when continuously printing/grinding towards an abrasive material (the model being printed). See our test results with different nozzle materials below.
The High Temp version is made of a special high conductivity copper alloy, and uses the same ruby tip as the standard version, sharing the same benefits as described above. In addition to this, it supports printing temperatures up to 500C and the body is coated with a high performance non-stick chromium nitride surface, resulting in smoother and cleaner prints. This surface can withstand these high temperatures and does not wear off since it is never in contact with the print surface.
WHAT IS THE OLSSON RUBY HIGH TEMP?
Just like the standard Olsson Ruby nozzle, it is a unique nozzle for 3D Printers, designed to print highly abrasive materials.
As the name suggests, the high temp version is designed to print high temperature materials.
It supports printing temperatures for up to 500C, making materials such as Carbon-filled PEEK or Ultem possible to print.
In addition to this, the high temp version is made from high conductivity copper and is coated with a high performance non-stick chromium nitride surface. This results in smoother and cleaner prints.
Which 3d printers is the Olsson Ruby compatible with?
See our Compatibility page.
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 thousands of users all over the world with a lot of different materials, including:
Carbon filled PLA (Proto-pasta Carbon Fiber PLA)
Carbon filled ABS (Oo-Kuma CF0 Carbon filled ABS)
Carbon filled Nylons (Fiber force Nylforce Carbon Fiber, Matterhackers NylonX)
Carbon filled Co-polyesters (Colorfabb XT-CF20, Nanovia PETG-CF, Formfutura Carbonfil, 3DXTech CarbonX PETG)
Glass fiber filled nylons (Fiber Force Nylforce Glass Fiber)
Kevlar-filled ABS (Nanovia ABS-K)
Tungsten-filled ABS (Turner MedTech GMASS)
Metal filled PLA (Colorfabb SteelFill, Brassfill, Copperfill, Proto-Pasta Stainless Steel PLA)
Graphite filled PLA (Proto-pasta Conductive PLA)
Boron Carbide-filled ABS
As always, your particular 3D Printer, material and slicer settings used will play the biggest part in the result, regardless of the nozzle type
In some cases it’s advisable to increase printing temperature 5-10C depending on material and type.
If using wood filament it is important to remove the filament from the extruder and nozzle soon after finishing a print, as the filament will begin to burn in the nozzle. (Applicable to all types of nozzles.)
WHAT IS THE MAXIMUM TEMPERATURE FOR THE OLSSON RUBY?
We do not recommend using The Olsson Ruby nozzles at temperatures above 300C.
If you have the need for higher temperatures, The Olsson Ruby High Temp is designed for use up to 500C.
WHO INVENTED THE OLSSON RUBY NOZZLE?
The Swedish research engineer Anders Olsson from Uppsala University. Full story.
WHO MANUFACTURES THE OLSSON RUBY NOZZLE?
How does the wear resistance compare to other nozzles?
Brass, 0.3kg carbon fiber filled filament printed.
Stainless steel, 1kg carbon fiber filled filament printed.
Hardened steel, 4kg carbon fiber filled filament printed.
The Olsson Ruby, 8kg carbon fiber filled filament printed
No wear visible under microscope