Thanks for your advice..
I've tried 20mm/s for the bottom layer, 40mm/s for the rest
and 0,3mm layer height for 1st, 0,2mm for rest
at both 230 and 240C
but the same thing happened, it stops at a few layers. Interesting is that all prints stop at more or less the same point. See pic:
Any more suggestions?
I have no problems with layer adhesion (for the first print after re-loading)
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gr5 2,224
It's probably over cooking in the nozzle. You can fix this by printing cooler or faster. Do .3mm for bottom layer (default I think) and 0.2mm for remaining layers. Until you've experimented more. You can certainly do 0.1mm if you stay at 40mm/sec and your nozzle is cool enough.
So what temp is best? I'm really not sure. I think you want to stay between 240 and 245C but start out at 230C as an experiment.
So for now, try 0.2 layer height and also do 20mm/sec print speed on that bottom layer to keep the plastic flowing.
That's clogging.
Other problems you will have is layer adhesion and parts sticking to the bed. You really want the bed at 105C minimum, 110C recommended for the ABS to stick extra well to the bed but I don't think you can get it up to that temp without enclosing the printer - as a minimum enclose the 3 open sides and throw a big box over the top. Let the air get up to 35C (servos will be fine even at 40C air temp).
This higher air temp will help with layer adhesion. Also lower the fan a lot - print at what sounds like 1/4 power (around 30% I think). If fan is too low then overhangs will look bad. If fan is too high then part will seem fine until you break it and you will realize it breaks along layer lines which means you didn't have good layer adhesion. It should break in a way completely (or mostly) ignoring layer lines.
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