0.4mm Large MK8 Nozzle for 1.75mm Expand

0.3mm Large MK8 Nozzle for 1.75mm

HWPHNMK8L1.75X.3

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A 0.3mm MK8 Nozzle for 1.75mm filament - a standard nozzle that strikes a good balance between printing speed and accuracy.

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R29.95

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This is a 0.3mm MK8 Nozzle for 1.75mm Filament 3D printers, stocked as a general purpose nozzle to offer a good balance between thermal conductivity and durability. This makes it an excellent choice for standard ABS and PLA Filaments, although you may need a specialised stainless steel nozzle if you plan on using more corrosive or abrasive Exotic Filaments.

Whether you are looking for a replacement nozzle for your 3D printer, or are eager to upgrade to a larger or smaller nozzle depending on your printing needs, this 0.3mm nozzle strikes the perfect balance between printing speed and accuracy.

As a final note, don’t forget to utilise the hot-tightening technique explained below, to ensure that it works optimally in your 3D printer without causing any unnecessary problems.

Technical Specifications:

  • Material

– Brass

  • Input Diameter

– 1.75mm

  • Output Diameter

– 0.4mm

  • Thread Diameter

– M6

  • Height

– 13mm

  • Width

– 7mm

 

Changing Nozzles – The Hot Tightening Technique:

When swapping out 3D Printer Nozzles on a 3D printer, we recommend resorting to the hot tightening technique. Follow this procedure - being careful not to burn yourself.

  • Unscrew the heat-break from the heatsink half a turn to be sure you are not tightening against the heat-break in later stages.
  • Heat up your hot end to 285°C. Do not overshoot as you risk damaging your thermistor.
  • Remove the existing nozzle from the heater block.
  • Insert the new nozzle.
  • Gripping the heater block tighten the nozzle. Do not apply any torque through the heat-break, they are fragile.
  • Turn off the heat and allow the hot side to cool.
  • Re-tighten the heat-break into the heatsink.

The reason for this is that the aluminium heater blocks often 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.

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