0.5mm MK8 nozzle for the Makerbot MK8 1.75mm extruder assembly.
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This is a 0.5mm replacement nozzle for the Makerbot MK8 extruder assembly for 1.75mm filament.
The MK8 nozzles where originally developed for the Makerbot MK8 extruder assembly but can also be used on a variety of hot end assemblies such as Geetech’s version of the MK8 extruder assembly which has a few improvements. The top of the nozzle is threaded in order to fit into the MK8 heater block and has been rated to have a flow rate of about 24cc\h.
It is good to keep in mind that brass nozzles are vulnerable to abrasive erosion by more exotic filaments like carbon-fibre filled materials, metal powder filled materials and glow in the dark filaments and also may be damaged by nasty head crashes.
When swapping out your nozzles from other hot end components, we recommend resorting to the hot tightening technique. Follow this procedure - being careful not to burn yourself.
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.
*Note this is not supplied by Makerbot themselves it is manufactured to the same specs and quality controlled locally to ensure it functions exactly as expected while saving you money.
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