I am working on a gear generation file, that will create 2 matched gears, and space them accordingly, to make them mesh correctly.

The spacing of the gears is calculated automatically, based on teeth, module etc. I then have a Global Variable where the user can enter the required spacing, and Solidworks will calculate the scale factor to apply, to scale the gears to match this spacing.

My issue is that I cannot use a global variable to set the scale factor of a scale feature. I have tried using a design table with \$X_AXIS@Scale1 - then this set to ="Scale Factor", but this does not work - it just says "value is invalid"