Slicer is off by around .35mm
Hi i was hoping someone could please help I have the same shape models in 2 different STL files. they are both of height 10.5mm I have validated these heights.
However when i slice one model always comes out around 10.15 while the other model is the correct height.
I' m using the latest version of the slicer 2.4.1.
Can someone please tell me how i can fix this issue? Is there a way to add an extra layer at the bottom or something to compensate?
RE:
Two questions. If you go to the 3d Object mode and select each of the two. What height does it say in the right window where you can see the dimensions? Is it the same (z=10.5 mm) for each?
Are both objects starting at z=0 mm?
Regarding the layer height settings and the first layer height settings, are the identical settings applied to both or, for whatever reason different settings applied to one of them. What are they?
If your layer height settings mean you can not identically reproduce the theoretical height of the object this can introduce error in the sub mm range. In any case due to top layer artifacts one should usually consider maybe 0.2 mm tolerance on the z dimensions, on top of the x/y tolerance anyway, but that would need to be tested with your printer, settings and material.
Mk3s MMU2s, Voron 0.1, Voron 2.4
RE: Slicer is off by around .35mm
Hi Thejiral
Thanks for the reply. I have added answers in your message below
Two questions. If you go to the 3d Object mode and select each of the two. What height does it say in the right window where you can see the dimensions? Is it the same (z=10.5 mm) for each? 10.5 for both models.
Are both objects starting at z=0 mm? yes
Regarding the layer height settings and the first layer height settings, are the identical settings applied to both or, for whatever reason different settings applied to one of them. What are they?
If your layer height settings mean you can not identically reproduce the theoretical height of the object this can introduce error in the sub mm range. In any case due to top layer artifacts one should usually consider maybe 0.2 mm tolerance on the z dimensions, on top of the x/y tolerance anyway, but that would need to be tested with your printer, settings and material.
I believe what might be happening is the top part of the shape is too thin for the printer to actually print so it's leaving that layer off...
RE: Slicer is off by around .35mm
Yes that could be, even though it is weird that it differs between two identical separate STL files.
You can try the slicer option to widen too narrow elements by the slicer. Then it extends the width to the minimum required for your nozzle settings. That won't make your model look pretty but it would confirm that you identified the correct factor at play here.
Mk3s MMU2s, Voron 0.1, Voron 2.4
RE: Slicer is off by around .35mm
Or post the 3mf file here so we can check model and settings.
Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...