Because I was afraid to rebuild the hot end that the overall length is no longer correct and special adapters are necessary, I limited myself to conversions that did not require any serious interventions in the hotends.
Here the changes I carried out:
- High-quality thermal paste applied on the cooler side of the heatbreaks
- Original extruder gears replaced by the gears by Bondtech ( https://www.3djake.de/bondtech/drivegear-kit-fuer-175-mm?sai=3018 )
- Replacement of the stock brass nozzles with hardened steel nozzles with 3-way copper core ( https://www.aliexpress.com/item/1005006680607298.html )
- The Hotend temperature I increased by 5 degrees for al materials because of the steel nozzles
- Lifting of the top lid for better filament guidance ( Printables )
- Replacement of the original filament inlet by one with smoother bend ( Printables )
- Moving the filament coils into the inner of the printer, using Teflon hose with 3mm ID to reduce friction ( Printables )
After applying all these modifications I didn’t got a clogged extruder during all following prints.
I hope this will help you to fix the clogging issues on your printer too.