Uneven layers and bad top layer
My MK2s recently started displaying these uneven layers, and also the top layer looks pretty bad.
Printer
Material
The material in the image was light grey PLA from PrimaSelect, but its the same phenomenon in other material from other manufaturers, and I've printed successfully in this material before.
Slicing
Stock standard Prusa Slic3r 1.35.5 0.20 mm NORMAL setting. (except for added PID values to pre print gcode)
The live z height is set using this method http://shop.prusa3d.com/forum/prusa-i3-kit-building-calibrating-first-print-main-f6/life-adjust-z-my-way-t2981.html
Re: Uneven layers and bad top layer
Hi Theodor
It looks a bit "wet", maybe you have a bit of over extrusion?
Take look at this page, made wonders for me.
https://mattshub.com/2017/04/19/extruder-calibration/
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Gert
Re: Uneven layers and bad top layer
Tried this out, and I could not see any real over extrusion happening :/
Actually what I think I have problem with is a partially clogged or broken nozzle. I'm waiting for a replacement and will try that one out.
Thank you
Re: Uneven layers and bad top layer
Maybe you can lower your extrusion multiplier in the slicer.
For some filaments i have 0.95 and some 1.05.
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Gert
Re: Uneven layers and bad top layer
Hi,
I have exactly the same problem with Devil Design 1,75 mm PLA Startpack 6*0,33kg. Did nozzle replacement help?
Thanks,
GK
Tried this out, and I could not see any real over extrusion happening :/
Actually what I think I have problem with is a partially clogged or broken nozzle. I'm waiting for a replacement and will try that one out.
Thank you
Re: Uneven layers and bad top layer
Second over extrusion. As already suggested try to lower the multiplier in 2 or 3 percent steps and check the results.
Other options to try is:
-> lower the print speed
-> lower the temperature
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