yellowshark 153
If it still fails after personal drone's suggestions then change the wall to 0.6 and check the layer view in Cura. Are you getting a single wall or a double wall? If a double wall then take the wall down to 0.4. Something I did last week suggests that on overhangs a single wall may work better than multiple walls. I was using a 0.8 nozzle with a wall of 1.2 (and got a single wall). Personally I would go to 20-30mm/s with 20 being the preference. But if it took 17 hours at 70mm/s I can see that will not be a popular suggestion :-P
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personal-drones 44
May I suggest you try the same but change the layer height to 0.1 and lower the speed to 30-40. Mind that in order to control the speed you need to go to the "Advanced" tab of Cura and set the individual speeds for the various part of the print. I would set inner shell-outer shell-infill to 30-40 max and leave the other speeds as they are.
Overhangs get better by lowering the speed and possibly the temperature of the print. So if you go down to a speed of 30, it should be safe enough to lower the temp to 205 or slightly less.
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