#Serious problems with overhangs on prusa mk3s+ clone

1 messages · Page 1 of 1 (latest)

deft lichen
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I have a prusa mk3s+ clone, with the original layer fan. And I am not able to make decent overhangs beyond 30 degrees.
hey look horrible. I have the right firmware for my thermistor.
0.4 Nozzle
Original TriangleLab bimetal barrel.
Default Prusaslicer Profile to this printer.

Imagen_de_WhatsApp_2023-06-21_a_las_02.28.46.jpg
torn fogBOT
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AI Help

There are a few things you can try to improve overhangs beyond 30 degrees:

  1. Lower the printing speed: Overhangs require the plastic to cool and solidify quickly to avoid drooping. Lowering the printing speed can help with this.

  2. Increase cooling: Overhangs can benefit from more cooling, so you could try increasing the fan speed or adding a second fan to the printer.

  3. Adjust the layer height: Try lowering your layer height to improve overhangs. However, keep in mind that this will increase the print time.

  4. Enable support: If possible, enable support for overhangs beyond 30 degrees. Supports can help provide a surface for the plastic to print on and prevent drooping.

  5. Use a different print surface: Consider using an alternate print surface such as a raft or brim to improve adhesion and support overhangs.

Hopefully, one or more of these tips will help you achieve better overhangs in your prints!

WARNING: This response is AI generated and may contain errors.
deft lichen
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PLA Standard filament.

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Try print even to 195ºC below this I have problems

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Using 15 mms to external perimeters and 30mms to internal

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60mms to fill

pulsar musk
deft lichen
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Sure

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Is in spanish but you can check the parameters

pulsar musk
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Does it actually feel like the fan is blowing air? Could potentially be a failing fan? Or just a low RPM fan in general that might need replacing

deft lichen
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I feel the air blowing, but I don't know if it is enough.

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I bought the fan about 2 months ago

pulsar musk
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Were overhangs fine before?

deft lichen
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They were never right

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At the beginning there was a temperature problem due to not using the correct firmware. But that has been corrected.

pulsar musk
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I'd have to say it might just be an insufficient fan or potentially the duct isn't pointing the air just below the nozzle

deft lichen
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How can I check this?

pulsar musk
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Photo of the hotend?

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Like with your fan duct and such in the frame

deft lichen
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the quality is horrible xD

pulsar musk
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Oh, yeah your fan duct seems to be the issue

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That 5015 should be more than enough

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It's too far back and doesn't appear to be directing airflow right under the nozzle but rather in front of it

deft lichen
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is the original 5015 to prusa

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I can't put it back any further because of the screw.

deft lichen
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Maybe a person with this printer or the original printer can help me more with the problem.

torn fogBOT
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deft lichen
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Need stay open If someone with prusa mk3s+ original or clon can help me