Slicer removing material

[bdejong11129]

So, I was attempting to print some new panel mounts which I have printed in the past with no issues but they kept failing.  I almost gave up but went back to look at it layer by layer.  It turns out that for some reason, OrcaSlicer was removing parts of the print!

 

Here it is in the preview. Pay attention to the area circled.

 

Here is the print sliced.  It removes the area circled!  You can see that its showing the model as is, but its not slicing it! And its not printing it(the area circled.  This obviousely ends in a failed print. 

 

This is the oddest behavior I have ever seen. 

 

Reloaded a different remix of it and it slices and prints fine.  Lesson here is to always preview and check your print before printing. 

 

 

[dshess]

Yep, always eyeball the preview before spending too much time debugging why the printer isn't working right.

I once was dialing in a printer for printing Voron parts, and I was printing the threaded tolerance test, and I was getting these super weird straight lines on the inside threads.  I figured it was something wrong with how the perimeter was bonding.  Looked at the preview, and ... all those lines were actually there, and now I was kind of impressed that my crappy bedslinger was bridging so well!  Realized that I was using a pre-release version of SuperSlicer with some known issues, dropped back a release and everything was fine.

[NikosSprocket]

4 hours ago, bdejong11129 said:

So, I was attempting to print some new panel mounts which I have printed in the past with no issues but they kept failing.  I almost gave up but went back to look at it layer by layer.  It turns out that for some reason, OrcaSlicer was removing parts of the print!

Here it is in the preview. Pay attention to the area circled.

Here is the print sliced.  It removes the area circled!  You can see that its showing the model as is, but its not slicing it! And its not printing it(the area circled.  This obviousely ends in a failed print. 

This is the oddest behavior I have ever seen. 

Reloaded a different remix of it and it slices and prints fine.  Lesson here is to always preview and check your print before printing. 

Which Slicer are you using?

Does the "missing" piece touches the printing surface?

[bdejong11129]

This is Orca Slicer, current version, 2.3.0.  Yes the part that was not sliced is supposed to and does touch the build plate.  In looking closer at this there was a warning that came up when I loaded the model that I missed.  It was for non-manifold edges.  I found this when I cleared the plate and reloaded it again in Prusa Slicer and it also complained but in a very different way.  I was able to repair it there using the windows service repair method and it sliced fine.  Back in orca slicer I then noticed the non manifold edges warning and clicked repair.  So, it was just a model that had some issues and I missed the warning box in my haste to run a few of them off for the new side panels. 

 

Lesson learned.