CAM Assist shows this when the stock material chosen for the part has no ISO classification, so it can't pick cutting parameters. It's most common with materials sent from your CAM package, marked From CAM session.
<material> is invalid, please populate the ISO category, or select a valid material
You see it in the Assessment stage's status banner and in the Run CAM Assist tooltip. The material also shows a warning icon or an Incomplete chip with the tooltip "ISO category is missing."
How to fix it
- In the Assessment stage, under Shop setup, click the pencil next to the Material. Or go to My Shop > Materials and choose Edit from the material's ⋯ menu.
- Choose an ISO classification: Steel; Stainless steel; Cast iron; Aluminum, copper and non-metallic; Superalloys and titanium; or Hard materials.
- Click Done.
Or pick a different material that has an ISO classification from the Material list. See Add or edit a material.
Built-in CloudNC materials can't be edited. Duplicate one to make your own version.
An ISO classification you set on a session material isn't kept for the next session. To keep it, use Save as to save the material as one of your own. See Add or edit a material.
In the Program stage
If the part's material has no ISO classification when you open an operation in the Program stage, Open cutting parameters explorer is unavailable. Its tooltip says "The selected material does not have an ISO category assigned." Fix the material as above.
Still seeing it?
If the material has an ISO classification and you still see this message, contact CloudNC support. Include the part file and your CAM Assist log files: see Find your CAM Assist log files.