print is getting ruined on second layer by nozzle being to close to the first scraping it ?
8 Replies
Hard to tell from a camera moving that much.. Take a photo of the problem?
One guess is that your extrusion multiplier is too high and you extrude too much material.
And it looks funky, like you have a very large nozzle?
the nozzle is 0.6
How did you set nozzle height and what did you set your extrusion multipler to/how did you test EM?
em is set to 0.92 in orca slicer default. i tested it with the build in flowrate test in orca slicer .
nozzle height ? you mean nozzle sice i put it in orcaslicer aswell
What's the base layer height and the first layer height?
0.3
Both
Need a picture of the print to have a chance of figuring out what what's going on.
This is a common problem.
I usually solve it by using the babystep Z feature in mainsail to raise nozzle during the first layer until it's printing with a smooth surface. Then save that as the Z-offset. After the print
Thats the nozzle - probe z offset value.
Then another thing you can do is calibrate the extrusion width for your specific nozzle temp/filament type/nozzle diameter combination
Print a single wall object and measure the wall thickness, then set that as your extrusion width. Be sure to switch the slicer type to classic not Arachne for this test. That extrusion width you measure is only valid as long as you don't change the extrusion multiplier, nozzle temp or filament.
Another way to do it is to use that measured extrusion width to adjust your extrusion multiplier to target a specific extrusion width. But that requires more than one test print. So I just change the extrusion width.
Setting extrusion width won't help until your z offset is correct (i.e. you nozzle is the correct height above the print bed during the first layer).