For the mechanical engineer working within the AEC (Architecture, Engineering, Construction) industry, the is not just an add-on; it is a necessity. While the initial investment ($129 USD for a perpetual license as of the V2.1.7 release cycle) might seem steep for a plugin, the return on investment recoups itself on the first commercial project that avoids a site collision.

Open SketchUp. Navigate to Extensions > Extension Manager .

Download the .rbz file from your authorized vendor or the developer's archive. Warning: Be cautious of "free" torrents; V2.1.7 utilizes a hardware-locked license system, and cracked versions often break the fitting library.