Downloading NEXTRA® 1.1 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The software is sometimes referred to as "NEXTRA".
The following version: 1.1 is the most frequently downloaded one by the program users. We recommend checking the downloaded files with any free antivirus. Nextra_Application.exe is the frequent file name to indicate this program's installer. NEXTRA® lies within Photo & Graphics Tools, more precisely 3D Design. This software is an intellectual property of Mecadtron GmbH.
From the developer:
NEXTRA® allows the detailed, three-dimensional generation of conventional multilayer and flexible printed circuit boards and MID carriers. Within multilayer printed circuit boards the exact three-dimensional shape of all layers which make up the board is incorporated. The shape of the board can also be transferred from other CAD systems. NEXTRA® allows to interactively place, rotate and swap components by Drag & Drop.
You may want to check out more software, such as Live DXF2BMP, Plate 'n' Sheet Development Pro. or CAD To DMC, which might be related to NEXTRA®.