Simplify3D Version 2.2.2 is now available from the downloads page.
The new update includes direct USB support for the Dremel Idea Builder as well as several new features focusing on quality and dimensional improvements. These new tools will give you more control over the outer dimensions of your parts, which is extremely useful to make sure the final part measurements match the original design. You can also use this functionality to make small adjustments to the fit between meshing parts, for example, when printing gears or sliding joints.
Read more about these new features on the blog (http://www.simplify3d.com/get-your-calipers/) or see the full release notes on our changelog page (http://www.simplify3d.com/software/changelog/).
You can update to the latest version by going to Help > Check for Updates from within the software.