0.3mm MK7 Nozzle for 3mm Filament Expand

0.3mm MK7 Nozzle for 3mm Filament

HWPHNMK7-3X.3

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This 0.3mm MK7 Nozzle is compatible with 3mm filament printers and is designed for high precision 3D printing – Ideal for small, detailed prints.

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R29.95

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These 0.3mm MK7 Nozzles for 3mm filament diameter are designed to be used in 3D Printing for high detail and precision, based on the MK7 design and capable of fitting a wide range 3mm Hotend Assemblies. Although they are not designed by Makerbot, they are made to the exact same specification with strict quality testing to ensure the same quality that you can expect from original MK7 nozzles.

Another benefit of these nozzles is that they are made from durable brass, which is an excellent choice if you are eager to print ABS or PLA plastics. However, they might not be a good choice for Exotic Filaments like carbon fibre or glow in the dark, as the abrasive nature of such filaments can easily damage the nozzles and widen the output diameter. For any standard types of 3D Printing Filament, however, these nozzles are more than capable of producing quality prints with high levels of detail.

 

Technical Specifications:

  • Material

– Brass

  • Input Diameter

– 3mm

  • Output Diameter

– 0.3mm

  • Thread Diameter

– M6

  • Hotend Compatibility

– E3D V5 3mm / E3D V6 3mm

 

Quick Guide to Changing your 0.3mm MK7 Nozzle:

When swapping out 3D Printer Nozzles from other components, we recommend utilising the hot tightening technique for optimal thermal coupling. To do this, simply follow these easy steps, while being careful not to burn yourself of course.

  • Unscrew the heat break from the heatsink by about half a turn, to be sure you are not tightening against the heat break in later stages.
  • Heat up your hotend to 285°C, but do not overshoot as you risk damaging your thermistor.
  • Remove the existing nozzle from the heater block and insert the new nozzle.
  • While firmly gripping the heater block, slowly tighten the nozzle. Be careful, however, that you not apply any torque through the heat break, as they are fragile and relatively easy to break when loose.
  • Turn off the heating unit and allow the hot side to cool.
  • Finally, once the nozzle is installed and cooled down, tighten the heat break back into the heatsink and ensure that there are no loose parts.

The reason for this is that the aluminium heater blocks used have a higher coefficient of thermal expansion than the brass and steel used in the nozzles and Heat Breaks. This results in a small gap being created between the nozzle and the break inside the block when the hot end is at temperature, but this only happens if the nozzle has been tightened while cold.

 

Please Note: This is not supplied by Makerbot, although it is manufactured to the same specs and is quality controlled locally to ensure it functions exactly as expected – while saving you money.

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