Normal prints do not use calibrated Extrusion Multiplier width
I have been fighting this problem for weeks, trying to get correct wall thickness and adhesion.
I am using an Ender 3 Pro and PrusaSlicer 2.3.0. Used this guide to set my Extrusion multiplier:
https://help.prusa3d.com/en/article/extrusion-multiplier-calibration_2257
Got a perfect cube with wall thickness of 0.45" after setting multiplier to 1.09.
If I use the same cube and just uncheck "Spiral" and set Perimeters = 2, I get a wall thickness of 0.88". Perfect.
Now if I try again to print the Ender 3 drawers, which have very tall walls, with 4 perimeters, the stupid walls come out with thickness about 0.33" and each perimeter completely un-attached to adjacent perimeters.
I cannot attach files, so have added a Gdrive link to the .3mf files for Test cube and Ender 3 Drawer.
https://drive.google.com/file/d/1rHq4prLzEQicIkrT0IH55fyRd_biWOer/view?usp=sharing
https://drive.google.com/file/d/1HlK_Bcrz-nJ98wY_fWD1qUN-PFMvU4vX/view?usp=sharing
RE: Normal prints do not use calibrated Extrusion Multiplier width
First thing is try is slowing down. If you're moving to larger prints, speeds are faster and you can outrun the hotels capacity. Save your part and settings in a 3MF project file, zip it up, and attach it to a reply here so we can look at everything and give better suggestions. Attachments must be zipped.
RE: Normal prints do not use calibrated Extrusion Multiplier width
Ok, I guess my Gdrive links didn't work. I've attached zips
cube-40-40-40_Spiral-Single-wall.
I have speed for perimeters at 40mm/s for perimeters in Prusa, then turn it down to 70% on the Ender 3 when I print PETG, since I can't find a way in Prusa to set print speed for individual filament. So it should be 28mm/S. Same print speed for both cube and case.
RE: Normal prints do not use calibrated Extrusion Multiplier width
Here is my test cube printed as the calibration guide shows, in spiral mode, with Inland PETG, and 1.09 Extrusion Multiplier:
Now here is a real print project, the Ender 3 drawer case. Prusa slices it with 4 perimeters, but now it prints with an extrusion width of about 0.33", and perimeters do not adhere at all to adjacent.
RE: Normal prints do not use calibrated Extrusion Multiplier width
Some corrections, as it appears I cannot edit my own post (lesson to use preview 🙂
Units above are mm, not inch.
The 1st photo above is not spiral sliced, but rather 2 perimeters.