Versa Magic credits can be purchased in groups of 500, 2000 or 5000, and these credits do not expire. When you make any update to a model or drawing, 1 usage credit will be consumed. Any additional changes to the same file in a 24 hour period do not count toward your usage. Beyond the 24 hour period, changes to that same file will again be counted as usage.

For more detailed information about Versa Magic, check out the Versa Magic User Guide.