TPU on Ender 3 stock

cults3d

I printed these parts and installed them on my extruder: With a little trial and error to relieve the pressure of the gear on the flexible filament you'll come up with the same results I did for sure! 3D prints with flexible filament are slow, I chose the following settings: Shrinkage: double or nothing as they say Some people prefer not to use it (this is my case) for parts that do not cause any thread (understand in one piece) Others largely prefer to enable shrinkage. However, increase the distance to 8mm to compensate for the stretchy nature of some filaments if, like me, you have a 3D printer with a bowden extruder Flow: from 100 to 125 I personally reached 125% for my TPU printing on my Ender 3. Speed: 20-25mm/s when starting out, as flexible filament is much trickier to print. Platen temperature: 60 °C Nozzle temperature: /!\ very variable depending on the filament: 205 °C For very soft materials don't skimp on the amount of plastic, set up thick walls (2mm or +) and filling beyond 25% if you want fairly firm parts. I personally made the mistake of leaving the walls at 0.8 mm thick making my part too soft to serve as a door wedge properly 🙁 . Finally, although 3D printers with bowden extruder like the Ender 3 are generally not (or poorly) compatible, the Creality Ender 3 + TPU duo is a success, notably, because the tube between the extruder and the nozzle of the Ender 3 is quite short and, because the TPU filament reasonably low compressible.