BIGTREETECH Direct MK8 CR10 Extruder Heatsink Upgrade All Metal Hotend with MK8 Nozzle 3D Parts for Ender3 CR10 Heat Breaker

?Specification?
Material: aluminum
Suitable for the nozzle: MK8 nozzle
Fit for filament: 2 * 4MM
Compatible with: 100K NTC 3950 thermistors
Compatible with: 6 * 20MM heater

?Friendly Reminder? Recommended setting of the cutting machine: retraction speed over 80 mm / s Retraction length 2.5-4 mm

?Compatible?:
Compatible with CR-10S
Compatible with CR-10S -S5
Compatible with CR-10S -S4
Compatible with CR-10
Compatible with CR-10 -MINI
Compatible with CR-20
Compatible with CR-20 PRO
Compatible with Ender2
Compatible with Ender3
Compatible with Ender3 PRO
Compatible with TronXY X5S
Compatible with Tevo Tornado
Compatible with Alfawise U20

?Recommended slicer setting?:
retraction speed over 80MM/S
retraction length 2.5-4MM

If you are facing PLA clogging problem, please try the followings:

1. Increase the retraction speed. The speed may have being limited in the firmware try to change it. G-command "M203 E200".

2. Increase the extruder acceleration. Check your firmware settings. G-command "M201 E9000".

3. Reduce the retraction length. It depends on your machine setup.

4. Increase the nozzle temperature by 5-10 degrees.

5. Do not install the 2 screws for support the heatblcok like the stock hotend on the CR-10 printer.

6. Make sure that there is no gap between the heatsink and the heat breaker.