Should I increased or decreased the nozzle diameter?

 most of 3D printers users are left with the same nozzle as the one that comes with the printer (usually 1.75mm thread thickness + 0.4mm diameter came out material) , the main reason is convenience.

Nozzle is  a rapidly warming metallic part through which our media passes is a diameter very critical to the result we want to get.

The diameter of the wire in most printers is 1.75 mm and the diameter of the final hole is usually 0.4 mm.

The heating mechanism consists of a small ceramic heating element and a thermistor (resistor varies depending on the temperature), as soon as the heating element heats the block to the desired temperature the thermistor resistance changes and accordingly the controller stops the heating action and when the temperature drops it activates the heating element again.

To purchase a suitable printer for a printer … 

Changing the diameter greatly effects the print quality A smaller diameter gives greater accuracy but longer printing time.

Conversely a larger nozzle diameter significantly shortens the printing time but the print stripes are more prominent.

If the Volcano mechanism the nozzle length is twice as long i.e.  The heating area is double, so if you want a high diameter, for example 1.2 mm, this is definitely a good option, for a smaller nozzle diameter, it is not efficient, but quite the opposite.

When working with very hard materials it is recommended to switch to a steel titanium die.

It should be taken into account that the thermal conductivity is less good and the heating of the block should be raised by 10 degrees.

Another solution is to increase the nozzle diameter so that the particles pass easily.

Before disassembling a nozzle it is important to heat the heating block so that the metal expands without preheating there is a good chance that the nozzle will break inside the block and it is very difficult to release it.

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