Missing filament on corners  

RE: Missing filament on corners

The pic is a bit blurry and difficult to make out. Can you save your part & settings off in a 3MF project file, zip it and attach it here? That makes it a lot easier to see what seeing you're using and what effects they have.

RE: Missing filament on corners

@bobstro here are some screenshots of my settings in PrusaSlicer. I will try to get a better image, but in that image, the three areas circled in red are basically areas where no interior perimeter filament was extruded.

RE: Missing filament on corners

Pictures of your settings are of limited use.  Attaching a zipped project file allows us to duplicate your slicer settings and debug issues much easier.  We can slice, check the preview interactively etc.  Tweak a setting, re-slice.  There are billions of possible permutations with all the settings, not to mention that start gcode could be set to anything that screen shots just arent really enough.  We can also export the model if needed to check it for any issues that may also be contributing to the problem.

With the preview we can check if the gaps are in the slice, if not then that makes it more likely that the problem is physical.  It could be those areas arent thick enough for the minimum extrusion width.  We cant tell with the information we have.

My best Guess (and it is a pure guess with the info we have) is that as you don't have detect thin walls enabled that the corners in those areas of the model are thinner than the perimeter extrusion width and so its not even trying to print those areas as the slicer has determined that it cant.

RE: Missing filament on corners

@neophyl

Thank you, I will try to get a zip file uploaded.

RE: Missing filament on corners

I got it sorted, perimeters were too thin and some non manifold areas were causing issues. Thank you for responding and wanting to assist 🙂

RE: Missing filament on corners

So my guess was right then 🙂  Good to know I'm not losing my touch.

RE: Missing filament on corners

@neophyl

Spot on for sure 🙂 Read your reply and got to work, thanks again 😀 Now to get the last little pillow looking thingy out of the seam in the front - should be extrusion multiplier and or LA.

RE: Missing filament on corners

If you have an excessively large seam join then the best thing you can do is to make sure your filament diameter value matches the actual average of the real filament as measured with callipers at several points.   The other stuff will help sure but I found the size to be the biggest help. 
Also with a larger nozzle like a .6 I have never been able to get the seam as small as with the .4 anyway. Not for lack of trying. 

RE: Missing filament on corners

Its just after the seam, luckily - the seam is at a point and seems to be working well. Its just after the seam I can see the 2nd perimeter pushing out enough to be visible on the 1st/outer perimeter. Currently adjusting LA in increments of .01 @ a time to adjust. Also changed my shell thickness from .4 to 1.2mm to see if that helps - not sure why it was .4, changed it to keep the thickness in line with the nozzle size.  Thanks again, really appreciate your help 🙂

RE: Missing filament on corners

No problem on the help.  Its one of the best things about the forum.  Lots of people help and its a pay it forward kind of thing.

One thing to be aware of (if you aren't already) is that the extrusion widths under Print settings are generally configured to be bigger than the nozzle diameter on most prusa default profiles. For example 0.45 is 'normal' for a 0.4 nozzle on perimeters. 

I think for a 0.6 its around 0.65 but don't quote me on that.  I pretty much only use the 0.6 nozzle on my Cr10 and I rolled my own profile for that as it was before the days of the installer having one for that printer.