About feeds and speeds

Feeds and speeds values are calculated automatically for each operation based on the feed/speed database, based on a combination of the stock material, the tool material, and the operation details.

You can customize this database by changing the values for an existing table or by creating a new table for an additional material. By customizing the database in this way, you are ensuring that FeatureCAM makes future decisions about feed and speed values just as you would.

You can also explicitly set the feed rate or spindle speed for an individual operation, but these changes only affect a single feature in a single part file.

All feed rates are specified in inches per minute (or millimeters per minute). The post processor then translates these rates into degrees per minute or inverse time.

Feedrates are specified for a 1" (or 20mm) tool. For tools that are other diameters, the feedrates are scaled linearly. For example, the feedrate for a 0.25" (or 5mm) tool is 1/4 of the table rate.