The different 3d printing nozzles fdm

Volumic offers several types of nozzles for its printers, for different uses and applications.

These nozzles can be mounted/dismounted from a print head, but this manipulation must be considered as a maintenance operation, to be carried out following the exact methodology otherwise performance, precision and reliability will be lost.

A simpler and more comfortable solution is to opt for several interchangeable heads with different nozzles. Both heads and nozzles are available in our store.


Here are the main types of nozzles offered and their characteristics/differences:

Brass Nozzle :
Fitted as standard on the STREAM PRO and DUAL, it is a very good compromise for classic needs. Brass has good thermal characteristics and will give quality prints at low temperatures. Since brass has a low cost and is “soft”, nozzles of this type are easy to machine and therefore cheap, but they wear out relatively quickly if the material is not very abrasive. When used only with non-abrasive materials (e.g. PLA, PETG…) a brass nozzle will generally have a life span of several months. On the other hand, when used with a material loaded with fiber, it can become unusable in less than a kilo of printed material.

+ Thermal performance
+ The price

– The resistance


The Copper/Nickel nozzle :
The Nickel plated Copper nozzle is the “Performance” nozzle. Copper has very good thermal characteristics, so it will give very good impressions at low temperatures, and will be able to withstand higher material flows. Its hard nickel coating also gives it a high resistance
and therefore a much longer lifespan. Its increased strength will also withstand occasional printing of lightly charged materials.

+++ Thermal performancepan,
++ Resistancepan,
– Price



The stainless steel nozzle :
The stainless steel nozzle can be used for regular (but not continuous) printing of abrasive materials, but is especially recommended for printing of “standard” materials and objects, e.g. for food, medical applications etc., which will require this type of material to have minimum “contamination”. On the other hand, the materials used for stainless steel, including steel, have a much lower thermal performance than copper or brass, which will require printing at higher temperatures to achieve the same result. A print with a stainless steel nozzle whose layers delaminate more easily than normal shows a too low printing temperature. The delta generally found is about 10 to 15° more than a brass nozzle.

++ Panel resistance,
+ Use in health/normative areas,
Thermal performance


The hardened steel nozzle :
The hardest of all for continuous printing of filled and abrasive materials. An excellent resistance, but thermal performances even less good than the stainless steel, which obliges to push the temperatures of impressions, in general from 15 to 25° more.

+++ Pan resistance
,
— Pan thermal performance
, lb- Price



Nozzle diameters in 3D printing:

Different diameters are also available for all types of nozzles to suit all needs.

However, notall materials support all diameters, especially on small nozzles. It should be noted that it is strongly discouraged to use nozzles of less than 0.4/0.5mm diameter for loaded materials, the fibers of load will have a strong tendency to systematically block the nozzle on the small diameters. The 0.4mm nozzle mounted as standard is a very good compromise between quality, fineness and printing time.

Smaller nozzles will increase printing time, but will allow you to print objects with finer walls and details, i.e. your nozzle size defines the smallest printable dot/detail. Large diameter nozzles will speed up prints, but reduce sharp edges and printable detail. This can also significantly increase the strength of the objects.

Nozzle diameters range from 0.15mm to 1mm. Visit the Volumic website to see the different models offered.
If you change your nozzle diameter, you will need to change your slicing settings in your software to match:

– For Simplify3D: open your process window, and in the “Extruder” tab (in advanced mode), change the diameter with the “Nozzle diameter” value to match your mounted nozzle.

– For Repeater: Open the “Printer Settings” panel with the top right button, select the “Extruder” tab and change the “Diameter” setting to match your mounted nozzle.

Remember that in the case of stainless steel or steel nozzles, you will have to increase the temperature significantly to get good results, otherwise the material will not adhere to the bottom layer, or your objects will be fragile and will delaminate easily.

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