Horos - A free, open source 64-bit DICOM medical image viewer
A360 VIEWER - Free online CAD Viewer
MicroDicom - DICOM viewer. MicroDicom is a free DICOM viewer. Export to the most common picture formats, movie, clipboard. It is equipped with most common tools for manipulation of DICOM images.
Glovius - Extensible & customizable 3D viewer, for consumption of product design data.
AMIDE - AMIDE: a Medical Image Data Analysis Tool
eDrawings Viewer - View, print, and review all types of eDrawings files Built-in Viewer