higher = better
lower = better
higher = better
2.5 to 4
5 to 7
(Tungsten Premium Nozzle, TPN-Onyx & TPN-RIFLE *new*)
6 to 8
8.5 to 9
Corundum (Sapphire / Ruby)
8.5 to 9
5.5 to 6
Data source: Wikipedia (US & DE)
Please note: The current samples of our tungsten premium nozzle are also made of small amounts (up to 3%) of nickel. Some people react sensitive to nickel. If you have a nickel allergy, then we do not recommend you to use our nozzle right now. Instead, please wait for our release of a tungsten nozzle without nickel! Tungsten is like brass and all steel-tungsten alloys (such as various stainless steels or hardened steels) not food-safe!
Our tungsten premium nozzle is not a must, but if you print often with white colored filament then you should consider to use our nozzle. White colored filament is generally achieved by the addition of titanium oxide. Titanium oxide belongs to the most abrasive color additives in the plastic extrusion industry and causes strong wear to extruder barrels and screws compared to other color additives.
ABS, Nylon and Poly Carbonite are high temperature plastics. High Temperatures will expand a brass nozzle which cause an unstable layer thickness (especially in case of prints which needs days to print) and additionally the high temperature will lower its resistance and it makes the brass or steel nozzle softer! Usage of high temperatures is comparable to tempering of metal which is usually performed after hardening to reduce some of the excess hardness.
The diameter of the nozzle hole is 0.4mm which is the most used hole size for 3D Printing. Depending on the demand we will release more sizes.
Depending on the tungsten material which we will use for our future nozzles, there can be up to 3% amounts of nickel in the alloy. That sounds pretty less, but we do not recommend you to use our nozzle if you are sensitive to nickel. We rather recommend you to wait for our Tungsten Premium nozzle which is without nickel.
Tungsten is like brass and all steel-tungsten alloys (such as various stainless steels & hardened steel) not food-safe!
We refer to German Wikipedia and the CDC Report:
“Nach dem derzeitigen Wissensstand gelten Wolfram und seine Verbindungen als physiologisch unbedenklich.”
“You are not likely to experience any health effects that would be related to exposure to tungsten or tungsten compounds.”
Ref: CDC: http://www.atsdr.cdc.gov/ToxProfiles/tp186-c1-b.pdf – 1.5 How can Tungsten affect my health?
Ref: Wikipedia: https://de.wikipedia.org/wiki/Wolfram – Abschnitt: Toxikologie
Tungsten and its alloys are used for various applications and things such as darts, Rings, HSS drill bits, tungsten electrodes (TIG Welding) etc.
This tungsten alloy is such a hard material so that you can not drill it, so the nozzle hole is done by a laser
About 5 to 8 weeks
Sapphire has a very poor thermal conductivity even poorer than brass. Diamond is of course the best material for a 3D Printing nozzle (if the complete nozzle would be made of diamond) but the price and the design of using an unrealiable 3mm diamond nozzle tip is an absolutely no-go for desktop 3D Printers. And both materials can easily scratch your glass bed.