This can be due to a manufacturing issue but is more probably caused by us. #1 Recently, the filament stopped extruding halfway through the print. Try extruding some (20 cm) PLA filament manually at high temperature (220 C). The dirt and debris can also melt then stick to the inside of the hotend and nozzle further cranking up friction. What is the tensioner? For machines with a direct drive, the recommended speed is 40mm/sec for medium and high hardness flexible filaments and 25mm/sec for low hardness flexible filaments. At first I presumed it was an overheating issue so installed heatsinks on steppers and bought a remote temperature device to monitor. What kind of printer is it? This must have a little bit of dirt (black spots). Its rather important to use a quality tested material from a reliable brand. Use a brass wire brush to clean the dirt from the nozzle. Replacement is the answer here. 3D Printed Hair: Can We Print Transplantable Hair Follicles? The most notable property of this filament is its flexibility. This is great for cosplay models like helmets, armor, weapons, and more. Make sure there are no knots or extremely thin parts. If this happens you can throw away a drill and hot-end nozzle. Retraction beyond 2mm is likely to cause issues. Filament kept in a moist environment, in which it could degrade very fast. But why at the same place in the print? Try to reduce the amount of retractions or set your retracts to be less aggressive. Gaps or overhangs can lead to obstructions and clogs as the melted filament leaks out around the outside of the tube causing the inner diameter to deform and reduce. After yelling and crying for a reasonable amount of time, we may proceed to ask ourselves: whats is causing this problem and how can we solve it? At 3DSourced weve covered everything 3D printing and 3D since 2017. To print TPC, youll need a higher heated bed temperature of up to 110C, and as with all flexible filaments you should only print at a maximum speed of 30mm/s. Hey Smithy, thanks for replying. middle fan is working fine, the bowden tube is old but doesn't look damaged (what should I look out for). white fi Keep on reading to learn more. Make sure to not print the filament too hot. In the case of an overheated extrusion motor driver, the solution relies on cooling the component with an always-on fan or by replacing the part with a new one. With some luck, the clogging material is attached to the solidified end of the filament. The Ultimate 3D Print Quality Troubleshooting Guide 2022, Top 20 Best 3D Printers in 2023 (For Every Price), The Best Ender 3 Firmware (Pro/V2): For Beginner & Advanced Users, Best Slicers For Ender 3 (Pro/V2) Free & Paid Software, Can the Ender 3 Print TPU? I even stuck a heat sink onto the processor and placed a fan over it. Is it deformed, as in no longer round but crushed so that its diameter is now wider than it should be? For flexible filaments on Bowden machines, its not recommended to go faster than 20mm/sec. Over extrusion is also clear to see, where you have plastic squashed together, leading to a low quality 3D print that isnt very dimensionally accurate. Therefore, though they may not be geared especially towards flexible filament users, PLA+, like Soft PLA, has been treated to make it more flexible. You should be able to find these in your slicer using the search function, or by expanding the basic/advanced level view of your settings. Still no solution. If dust somehow gets into the extruder, it will get carbonized. As with most issues linked to extrusion issues, the most common sign is that the filament isnt feeding properly even though the nozzle is clear.
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flexible filament not extruding