![Amazon.com: BIQU Extruder Pulley 36Teeth Bore 5mm Stainless Steel Drive Gear for 1.75mm & 3mm 3D Printer Filament (Pack of 5pcs) : Industrial & Scientific Amazon.com: BIQU Extruder Pulley 36Teeth Bore 5mm Stainless Steel Drive Gear for 1.75mm & 3mm 3D Printer Filament (Pack of 5pcs) : Industrial & Scientific](https://m.media-amazon.com/images/I/61LusTzXgTL.jpg)
Amazon.com: BIQU Extruder Pulley 36Teeth Bore 5mm Stainless Steel Drive Gear for 1.75mm & 3mm 3D Printer Filament (Pack of 5pcs) : Industrial & Scientific
![Extruder gear slipping upwards as the print goes on, before and after cold end upgrade. Not sure what's going on here? The temps are fine, I don't hear any clicking noises : Extruder gear slipping upwards as the print goes on, before and after cold end upgrade. Not sure what's going on here? The temps are fine, I don't hear any clicking noises :](https://external-preview.redd.it/TkrBixKzKmo_oHweXNEEc2gfGa2ylRor2G7hxP-S1sM.jpg?width=640&crop=smart&auto=webp&s=42ae5776b3b4fc9da6c74a30d804bb939f90294e)
Extruder gear slipping upwards as the print goes on, before and after cold end upgrade. Not sure what's going on here? The temps are fine, I don't hear any clicking noises :
![3D Printer Extruder Filament Drive Gear Review & Benchmark | Airtripper's 3D Printer and Arduino Blog 3D Printer Extruder Filament Drive Gear Review & Benchmark | Airtripper's 3D Printer and Arduino Blog](http://airtripper.com/wp-content/uploads/2013/11/mk8-filament-drive-gear-pulley.jpg)