Nail Polish Rack (Parametric)

A little rack/stand for nail polish bottles, I designed in FreeCAD
The model is parametric. The number of levels is fixed, but they can be tweaked:

|Parameter|Current Value|Unit|Comment
|---|---|---
|Pocket Depth| 40|mm|How deep are the levels
|Pocket Height| 40|mm|Distance between the floors of the levels
|Wall Thickness|3|mm|Thickness of all walls
|Slant Angle|10|degree|The angle of the floors
|Curb Height|10|mm| Height of the front wall of each level
|Width|181|mm|Overall width of the model

Changing a parameter sometimes breaks the sketch for the side wall, because the recompute causes two of the lines to cross. This can be changed manually by deleting some of the constraints, fixing the lines and placing new constraints. Not sure if this is a bug in FreeCAD or I am doing it wrong.