12:36 AM | Daniel: Optimization for the processing station "_Quote Nanxing" ran into the error 

 "EXP00100: The part '39.00 - Base Open Thick Back (1,869.50 x 746.00)' is too large to fit on any of the sheet sizes available for 'Colour Grained Board 16mm_Clone'."

12:36 AM | INNERGY Support AI: That error means the optimizer can’t place that part on any sheet size currently available for that material (Colour Grained Board 16mm_Clone). (https://intercom.help/microvellum-knowledge-base/en/articles/13917813-edit-a-material-size) 

 What to do: 

 - Increase the sheet size for that material so it’s larger than the part (and larger than any perfect graining container if you’re using perfect graining). (https://intercom.help/microvellum-knowledge-base/en/articles/13879630-overview-part-material-graining) (https://intercom.help/microvellum-knowledge-base/en/articles/14858778-perfect-graining) 

- Or add an additional sheet size with a higher optimization priority so the optimizer will use it first (priority 1 is used before priority 2, etc.). (https://intercom.help/microvellum-knowledge-base/en/articles/14602175-sheet-selection-type) 

 To change it: Microvellum Setup → Library or Project Specification Group → Material File → right-click the material → Edit Selected Material → Edit Sheet Size (or add another sheet size). 

 

Sources:

Edit a Material Size (https://intercom.help/microvellum-knowledge-base/en/articles/13917813-edit-a-material-size)

Overview: Part Material Graining (https://intercom.help/microvellum-knowledge-base/en/articles/13879630-overview-part-material-graining)

Perfect Graining (https://intercom.help/microvellum-knowledge-base/en/articles/14858778-perfect-graining)

Sheet Selection Type (https://intercom.help/microvellum-knowledge-base/en/articles/14602175-sheet-selection-type)

12:36 AM | INNERGY Support AI: Is that what you were looking for?

12:37 AM | Daniel: I have increased the sheet size and the part is nesting as expected, but when sheet is reduced back to actual size, part refuses to nest

12:37 AM | INNERGY Support AI: That’s expected behavior when perfect graining is involved. When you increase the sheet size, the optimizer can show the grain container and nest the part, but when you reduce the sheet back to the real size, the grain container may no longer fit, so the part won’t nest. (https://intercom.help/microvellum-knowledge-base/en/articles/13879630-overview-part-material-graining) (https://intercom.help/microvellum-knowledge-base/en/articles/14858778-perfect-graining) 

 What to do: 

 - Keep the sheet size at least as large as the grain container you’re trying to create (the container size is what the optimizer is using, not just the part size). 

- If you need the sheet to be the real size, adjust the perfect graining setup so the container is smaller (fewer parts in the group, or different grouping), then re-optimize. 

 If you tell me whether this part is in a perfect graining group, I can point you to the best adjustment. 

 [Image "DocsDisplay-blockId%3D6hy7b8f7c85b0331940f8a12bada49d30daa7-mode%3Dinline-zgId%3D703767911"] 

Sources:

Overview: Part Material Graining (https://intercom.help/microvellum-knowledge-base/en/articles/13879630-overview-part-material-graining)

Perfect Graining (https://intercom.help/microvellum-knowledge-base/en/articles/14858778-perfect-graining)

Microvellum Release Notes: Year of 2025 (https://intercom.help/microvellum-knowledge-base/en/articles/13852948-microvellum-release-notes-year-of-2025)

12:37 AM | INNERGY Support AI: Did that answer your question?

12:38 AM | Daniel: No, the part is not in a perfect grain container and the part itself is smaller than a sheet of board but refuses to nest

12:38 AM | INNERGY Support AI: It looks like you'd like to speak with our support team — we're happy to help! To help us expedite, please provide a subject for this issue: