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Posted
· Could use some advice. Wall layer not adhering.
First of all don't do 100% infill. It wastes time and filament and doesn't increase strength. Well it doesn't affect bending strength or pulling strength but it does help crushing strength (if you stand on the print - infill will help).
wall-not-adhering is always an underextrusion issue. Because you had the problem the most with 100% infill then I'm guessing your infill printing speed is higher than your wall speed and the infill speed is too high where it's underextruding.
But there are easily 20 possible causes for underextrusion. they are all "fixed" by slowing down. a lot. Try 4X or 8X slower. Just to see what happens. You should be able to adjust print speed on the fly. But even if that fixes it you may have a desire to print faster and there may be something you can do about that. I don't know.
Yes you should absolutely get a cooling fan. Quality will increase. Particularly for overhangs. You want to cool the part without cooling the nozzle if possible. If you use a fan you have to worry about back pressure - most fan shrouds block flow too much and the fan is useless. Blowers don't mind back pressure.
Posted
· Could use some advice. Wall layer not adhering.
Thank you for your advice. Will try to slow it down. It seems some areas of the part can deal with the speed. I have to figure out how to slice certain parts faster. I have zero issues with overhangs without a fan so far. But will probably use one.
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gr5 1,871
First of all don't do 100% infill. It wastes time and filament and doesn't increase strength. Well it doesn't affect bending strength or pulling strength but it does help crushing strength (if you stand on the print - infill will help).
wall-not-adhering is always an underextrusion issue. Because you had the problem the most with 100% infill then I'm guessing your infill printing speed is higher than your wall speed and the infill speed is too high where it's underextruding.
But there are easily 20 possible causes for underextrusion. they are all "fixed" by slowing down. a lot. Try 4X or 8X slower. Just to see what happens. You should be able to adjust print speed on the fly. But even if that fixes it you may have a desire to print faster and there may be something you can do about that. I don't know.
Yes you should absolutely get a cooling fan. Quality will increase. Particularly for overhangs. You want to cool the part without cooling the nozzle if possible. If you use a fan you have to worry about back pressure - most fan shrouds block flow too much and the fan is useless. Blowers don't mind back pressure.
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Chander91 0
Thank you for your advice. Will try to slow it down. It seems some areas of the part can deal with the speed. I have to figure out how to slice certain parts faster. I have zero issues with overhangs without a fan so far. But will probably use one.
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