Hello, 

I am currently working on a parametric model of an enclosure using equations. The model has an option for a drip tray (1 or 0) and height, both are determined by an external file. 

In the pictures below you should see that the equations evaluate correctly, the height should be 1400 mm and the M10 hole should be suppressed, but these changes do not appear on the model.

The other side of the