Quote:
Originally Posted by Dave McLaughlin
Be mindfull and take care when using this method as you are creating cross part geometry and dependence. This can be no problem at all, but if the referenced part is modified or removed your very likely to encouter difficulties with constraints and missing reference geometry.
I would reccomend a more time consuming, but more stable method in which you do not project geometry and instead insert the tabs and thru holes for mounting in a seperate sketch from the truss pattern. In this sketch either measure or look up the mounting hole patterns and geometry for the hardware you're including and manually set the spacing for your holes with a dimensioned sketch.
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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.