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Kurniati

Wood Filament stopped extruding halfway through the printing process

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I use speed, temperature and retraction according to what colorfabb suggested ( http://learn.colorfabb.com/how-to-print-with-woodfill/ ). I am using 0.4mm Nozzle, 0.27mm layerheight, 105% material flow, 205C nozzle temperature, 70mm/s speed. The first 3 prints are printed fine, however, when the 4th one is printing, the printer suddenly stopped extruding and black liquid came out after more than 5 hours had passed. So, I cleaned it using the atomic method and the charred part comes out of the nozzle. The STL files has been checked, it’s water-tight, no errors. So, it might be the nozzle problem, but we are not exactly sure about it. Does anyone know why this is happening?

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Almost surely it's clogged. The pieces of wood can get stuck in the nozzle tip. I recommend you print with .6mm nozzle or larger for this reason. Do you have an olsson block such that you can change nozzles? If not I sell them here:

http://thegr5store.com

If you do have the Olsson block you can just unscrew the existing nozzle (while hot - at 150C or warmer) and check it and maybe burn it out in a gas flame until everything in the nozzle is burnt to ash.

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