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But be careful - you are already pretty low at 200C. I strongly recommend you do a simple test like the one I did in the above post as all PLAs are not the same both manufacturer and color. I'm told it helps to have a good quality PLA.
If you lower the temperature more you might get underextrusion which would mean you would have to lower the speed also although 50mm/sec would be plenty slow enough for me at 190C (100mm/sec would be a bit too fast for my grape colored PLA). This is also addressed at the above link.
Also you might want to add a clip: There's a blue clip on the print head where the bowden tube connects. You might want to make a similar one on the feeder. Other people seem to think this helps reduce how much you have to retract. I have one and 4.5mm is plenty for me.
Also 40mm/sec might be too fast for the retraction speed with the latest Marlin. I'm not sure - there's been discussion about this lately but I don't have the latest marlin so I haven't touched that setting.
But really I suspect the only thing you need to do is lower temp by 10C but don't waste another hour on this - do a test print first.
Oh - and to get better adhesion to the blue tape, wash it once with Isopropyl alcohol (aka rubbing alcohol) - found at any drugstore that sells aspirin and bandages. If you do that you shouldn't need to sink the bottle by 3mm.
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gr5 2,224
You have "stringing". The simplest thing to do to reduce stringing is to lower temperature:
http://umforum.ultimaker.com/index.php?/topic/1872-some-calibration-photographs/
But be careful - you are already pretty low at 200C. I strongly recommend you do a simple test like the one I did in the above post as all PLAs are not the same both manufacturer and color. I'm told it helps to have a good quality PLA.
If you lower the temperature more you might get underextrusion which would mean you would have to lower the speed also although 50mm/sec would be plenty slow enough for me at 190C (100mm/sec would be a bit too fast for my grape colored PLA). This is also addressed at the above link.
Also you might want to add a clip: There's a blue clip on the print head where the bowden tube connects. You might want to make a similar one on the feeder. Other people seem to think this helps reduce how much you have to retract. I have one and 4.5mm is plenty for me.
Also 40mm/sec might be too fast for the retraction speed with the latest Marlin. I'm not sure - there's been discussion about this lately but I don't have the latest marlin so I haven't touched that setting.
But really I suspect the only thing you need to do is lower temp by 10C but don't waste another hour on this - do a test print first.
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