Subtle move manages a head: With cold pull a technology to clear extruder interior is plastic and residual

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The machine of FDM 3D Printing of desktop class with price material benefit, print convenient, became at present most machine of all-pervading 3D Printing. But machine of FDM 3D Printing also has a the gate of vitality -- need often undertakes maintaining maintaining to it, especially the nozzle that it jams very easily then. For this, player of a 3D Printing of foreign invented a kind of very useful solution -- " cold pull (Cold Pull) " the technology is specific for, this is one kind clears the method with extruder residual interior. To machine of FDM 3D Printing, residual it is inevitable, the reason depends on the following: The hot Duan Zhuo of overheat was burned a few plastic, after making its build up to come out in the inside wire production of nozzle, the dirt that the pollution of in-house existence eyewinker falls in wire reel surface is not taken care to discard rubbish to heat to because machine of this FDM 3D Printing often appears,carry li of other reason together by the accumulation after calcination the case that presses an inadequacy: Without the reason with obvious what, but extruder cannot squeeze an enough data. If this moment extruder is driving wire and reel rotates freely, have a kind of possible reason only so: Hot end jams. Hot end has a natural drawback in structural respect: The diameter of wire is commonly 1.

75mm, nozzle is squeezed going out is normally 0.

4mm diameter (to go after precision, still have smaller diameter) . A few people keep clear of now with needle disclose nozzle residual. But this is not a very good idea. Above all, may bring about aperture to be out of shape or greaten, it is more difficult to make print (section program does not know to want extruding how many material) . Next, before long hind it still can appear to jam again nozzle. Cold help a technology actually very maneuverable. Insert a paragraph of wire, heat extruder lets wire be squeezed from nozzle piece a few (if stemmed really,the likelihood cannot be squeezed piece) , or heat working temperature. Shut 3D Printing engine next. When should heating up end to be in working temperature normally, can pull wire rod freely. After complete refrigeration, wire will be caky live, cannot pull out come. Hang awaits temperature namely slightly under caky level, pull wire rod quickly, should be solid state for the most part right now. When wire is caky, can capture fragmentary in hot end those who distributing is residual. Discover it was polluted by black material possibly still, can have a few even apparent drossy. There still can be more inside the wire of solid state. Cut off this paragraph of share that gets pollution, repeat this process. Heat and the time that the cooling likelihood that heat up end wants to cost a few minutes, but this should be gotten easily than other method much. Repeat a few times more according to the circumstance, the wire rod that pulls finally will be very clean, this explains the extreme of wire is clean. CNC Milling CNC Machining