I am slicing the same file with luban 4.5. when using Normal or Fast profile all good, when using Smooth surface my dual extruder stops extruding. it gets badly stuck, like heat creep problems. There is a clog in the tube inside the heath sink on the hot end. cannot manage to get it out even using the hotend controls from the display.
Hi same problem for me only try with fast setting and for me the problem it s only on the right extruder i allready try 2 different filament 2 different hot end and the standby temperature at 75. I test to make a retractation at 40 mm when switch it s clogged again but not need to unmount the hot end for fix it.
Yes, it has helped. I have been able to print 2 color parts. It’s shown with an exterior fan, but I found you don’t need it. The magnet I have mounted isn’t very strong and should be replaced with a better one.
Yes, The hole appears to be enough. I measured the temperature on the cool section and it was about the same with and without the fan. The internal deflectors make the air go across the fins. The original air flow was from the top of the head and doesn’t cool adequately.