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My First slicing failure (2.4.0)  

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Spinnetti
(@spinnetti)
Trusted Member
My First slicing failure (2.4.0)

I've designed and printed literally hundreds of parts (mostly functional R/C model parts) without issue across many versions of the slicer. Got my first failure today, and on a simple part too. Its a simulation of blocks of wood held together with 3 metal bands. The "wood" is fine, but the "bands" are distorted to follow the profile of the "wood"

  • The model looks fine and has no slicer reported errors
  • The issue happens with .3MF or .STL formats
  • Results are the same regardless of print settings or layer thickness
  • I tried creating separate parts then making an assembly and exporting that way with same results
  • I tried creating the "bands" both bigger (separated a bit from the "wood") and also thicker (thinking I was below some feature limit), with same results
  • The model slices fine in Chitubox for printing on my Saturn in all of the model forms

I've attached the original design intent, what it looks like sliced, and the .3MF file.

Thoughts?

 

Posted : 27/12/2021 1:00 am
sylviatrilling
(@sylviatrilling)
Honorable Member
RE: My First slicing failure (2.4.0)

I tried it with an xy compensation value of .06 and it slices correctly. That was lowest value that fixes it. A value of .05 doesn't change it. 

Mk3S+,SL1S

Posted : 27/12/2021 1:43 am
Spinnetti
(@spinnetti)
Trusted Member
Topic starter answered:
RE:

Thanks. So reading this, it will make the whole model bigger? parts are dimensionally accurate already, just not slicing correctly. Not sure this addresses root cause? 

Posted : 27/12/2021 3:01 am
Spinnetti
(@spinnetti)
Trusted Member
Topic starter answered:
RE: My First slicing failure (2.4.0)

BTW, I did try your suggestion and it sliced properly.. Odd fix though - I would have never thought of that!

Posted : 27/12/2021 3:13 am
sylviatrilling
(@sylviatrilling)
Honorable Member
RE: My First slicing failure (2.4.0)

I don't know what the root cause is. The xy compensation makes the perimeters go outward but not taller. You could fudge it by then using the regular scaling for x and y to return the model to your original dimensions. A compensation for a compensation so to speak. Or perhaps this can be a data point leading you to a better solution. 

Mk3S+,SL1S

Posted : 27/12/2021 3:16 am
Spinnetti
(@spinnetti)
Trusted Member
Topic starter answered:
RE: My First slicing failure (2.4.0)

Regardless, thanks for the countermeasure. I printed my part and all's good from that perspective. Thanks! 🙂

Posted : 27/12/2021 4:50 am
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