ZBrushCentral

3D Print Exporter Wrong Size

Hello

I am trying to export an STL at the exact same size as the scan that has been imported into ZBrush and altered. Whenever I use the option to keep original size, the exported file is completely incorrectly scaled. For example, I just had a file that I believe is about 15" tall and it exported at 37" tall. For my work, I need these to be very exact and am trying my best to avoid having to measure the object in order to input the measurements before export. Right now I am just having to bring an exported OBJ into 3D Max to get the correct scale.

Any ideas what might be going on or what other options I have inside of ZBrush to get the correct STL?

There is a plugin for that:
http://www.zbrushcentral.com/showthread.php?194807-CalipersMaster-v-1-ZPlugin

I appreciate that, thanks! Really what I am looking for though is why the original size feature in the existing exporter is so off. If possible, I would really like to not have to buy something separately to measure. I would probably just continue using other programs like Max to export if that was my only option.