![]() ![]() In the past, I would take a calibration model and adjust these 2 variables and test. ![]() There are 2 main variables that affect this: the speed it moves and the distance. During the extruding moves pressure builds up and in order to stop stringing and blobbing during non-printing moves, a retraction happens. When it is printing nearly all prints require non-extruding movements. Molten plastic is then layered to produce a model. It pushes the filament, either directly into the hotend assembly or through a Bowden tube to the hotend. While 3D printing on a standard FDM printer, the filament is pushed with an extruder motor that has a gear attached. when I have to calibrate retraction (aka retraction tuning). I really enjoy reviewing 3D printers and all things 3D printing with one exception…. Hey, Karl here with a short article on retraction tuning. ![]()
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