Get yourself a high quality, high temperature resistance Capricorn PTFE Tube from Amazon to prevent heat damage to your Bowden tube. Solutionĭouble-check the ends of your PTFE tube, especially on the hotend side and replace it if necessary. Heat creep can occur when your heatsink isn’t dissipating heat properly, which is when heat travels to where it isn’t supposed to, back into the end of the PTFE tubing. This could even clog the filament to become smaller in diameter than usual. Now come to the PTFE liner, if you observe that it has worn out because of the heat, this can be one of the reasons for the filament not feeding properly. I would get a small test print and print it several times using different combinations of retraction speeds and lengths to see which one delivers the best quality.Ī very popular print file for testing your 3D printer is the ‘ Test Your Printer V2‘ from Thingiverse. The proper way to do this is to find the optimal settings for your 3D printer, whether that is from researching online or doing it yourself. You don’t want your filament to be generating extra strain from the pressure of the back and forth movements from retractions.
PULLTUBE NOT WORKING HOW TO
I wrote an article called How to Get the Best Retraction Length & Speed Settings
PULLTUBE NOT WORKING TRIAL
I would lower retraction length to around 4-5mm for Bowden (2mm for a Direct Drive extruder) and retraction speed to 40mm/s as a good starting point, then you can trial and error that as you wish. People usually have their retraction lengths and speeds way too high. These are the length and speed at which your filament gets pulled back into the extruder, so material doesn’t leak out filament while moving to the next extrusion location. The retraction settings mainly consist of retraction length and retraction speed. I’ve been through this one before, so I know how bad retraction settings can negatively affect your prints, and even cause them to fail altogether.
Once your extrusion path is cleared and allows filament to pass through smoothly, you should be a lot closer to the way of being able to feed your filament properly. Clean out your nozzle, especially if you change printing materials a lot – Use some good cleaning filament ( Novamaker 3D Printer Cleaning Filament from Amazon) for a good clean.Capricorn PTFE Tubing from Amazon has a smooth internal path which reduces obstructions. Make sure your PTFE tube is clear of obstructions or loose filament.You can print a filament guide to achieve this. The spool holder should be close to your extruder and the filament ideally should be coming an angle which is fairly curved in the flat direction. Check that your filament have a smooth and clear path to feed into the extruder.This goes anywhere from the filament flowing inside the extruder, to the extruder itself, through the PTFE tubing if you have a Bowden set up, through to the nozzle.
PULLTUBE NOT WORKING FREE
You have to make sure your extrusion path is clear and free of obstructions, so your filament can feed through at the proper rate. Why Does Filament Not Feed Properly? Causes & Solutions
Why Does Filament Not Feed Properly? Causes & Solutions.
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