Quote:
Originally Posted by Gray Adams
Yeah, cross-part references can get pretty tricky. I put each component (or type of component) in a separate sketch and extrusion feature so that if I change something, it's easier to deal with. You can also break the adaptivity and make it a normal part so you don't need to worry about it.
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Quite true. I would recommend projecting the geometry of the motor controllers, tabs, etc. in a first sketch and extruding. Then, add the lightening pattern to the back side. Sometimes, I like to dimension the pockets/cheese holes/lightening pattern from the projected geometry of the motor controllers. This way, if you change the arrangement of the electronic components, the mounting holes will not suddenly disappear into one of your lightening holes.
However you decide to do it, I would highly recommend keeping any mounting holes and lightening holes as different features, with the lightening holes farther down the tree.