Z banding
Hello,
I have been consistently observing rough layer lines in the z-axis, and sometimes there are noticeable gaps. This particular print is PETG at 235C, 0.2mm layer height. I've tried tightening my x-axis and y-axis belts, recalibrated my z-offset, performed PID tuning, and tightened my x-axis carriage backplate. I'm also using a 3rd party hot end, but I've been seeing these layer variations even with the original hot end.
The only thing I can think of is adjusting the extruder itself and that there might be z-wobble in my x-axis lead screws.
If there's anyone who's experienced the same issue, I would greatly appreciate any help in improving my print quality!
RE: Z banding
have you checked the grub screws on the toothed wheels on the X and Y Motor spindles?
Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: Z banding
Hi Joan,
Thanks for the suggestion, I actually have not looked at that during my last teardown! I'll give it a try. Also I realized I wasn't able to upload the photo of the issue that I was referring to, hopefully this link works: https://photos.app.goo.gl/5Gf6X1MSNB4hQnog8
RE: Z banding
Link doesn't work for me you can go add media on here the add images
Please help me out by downloading a model it's free and easy but really helps me out https://www.printables.com/@Hello_474427/models
RE: Z banding
Here's the missing photo!
RE: Z banding
Just started to print with Prusament PETG and was having issues. Finally ran this calibration and found that I had to adjust my extrusion multiplier by about 7%. It may be worth running.
RE: Z banding
Can you print 20 by 20 mm box please so we can see better
Please help me out by downloading a model it's free and easy but really helps me out https://www.printables.com/@Hello_474427/models
RE: Z banding
Don't own an MK3 myself.
It looks like a repeating pattern.
Think you should look for it in the Z spindles.
But filament throughput could also be a cause.
RE: Z banding
Check the grub screw and photo of gear on each motor also 3mf file
Please help me out by downloading a model it's free and easy but really helps me out https://www.printables.com/@Hello_474427/models
RE: Z banding
can't tell from the photo if the lines are gaps (uneven extrusion) or layer shifts (something is loose)
is your V6 hotend fully tightened? it should not wobble or be able to rotate.
are your Z-axis lead screws and linear rods straight and rigid?
check everything again that they are not loose NOR have backlash.