I recently coded a new addon that uses CAD Exchanger to add several new file format import/export options to FreeCAD:

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https://github.com/yorikvanhavre/CADExchanger
CAD Exchanger is a paid application (you can download a 30-day trial for free). So far the price is not informed on their website, you must send them an email to ask, but they told me they are working on something easier *EDIT* There is now a link to the pricing page inside the CAD Exchanger application.
When the addon is installed (via the addon manager), you get a new 'CAD Exchanger' preferences page in Edit -> Preferences -> Import / Export. From there, you can enable any of the file formats supported by CAD Exchanger. You must also specify the path to your CAD Exchanger Converter executable. Then, by using any of the file formats from standard FreeCAD import/export (FreeCAD must be restarted before), the converter will be ran under the hood and will convert to/from the given format to Brep, which is OCC's native file format, which always gives an impeccable import in FreeCAD.
There are two things that are pretty interesting: Cadex cad exchanger cloud

CAD Exchanger does a pretty fast mesh-to-shape conversion, so you can use this to import, for example, an OBJ file directly as a Shape. So far everything gets triangulated, though.
The biggest interest is the support for additional file formats not available in FreeCAD, for ex. Parasolid XT, Rhino 3DM or ACIS/SAT files.

The ACIS/SAT format, for example, allows to beautifully import Autodesk Revit families into FreeCAD:

Screenshot showing the import of Revit families into FreeCAD through the ACIS SAT format.png (265.66 KiB) Viewed 11311 times

The CEO of CAD Exchanger is Roman Lygin, one of the former core programmers of OCC and a famous figure of the OCC world. I really hope we can achieve some good synergy here between a free software project and a commercial app, which can reach goals that are beyond our reach as an open-source project. They are hungry for feedback and feature requests on this, so don't hesitate to bury them under requests (DWG support anyone? )!
I'll notify them about this thread so they'll hopefully see any feedback or comments posted here.

Cad Exchanger Software

CAD Exchanger Cloud makes a step into Industry 4.0 concept with PMI support.

Ramil Gasanov

Industry 4.0 is not another marketing buzzword. We have been finally convinced in this since we experienced a huge volume of inquiries related to PMI and meta-information.

Let’s shred some light on the concept of PMI. There are 2 kinds of Product and Manufacturing Information: semantic and graphical. The semantic PMI actually stores a lot of data, while graphical PMI is meant to be displayed in the 3D.

Semantic PMI is a set of annotations, drafting symbols, values and manufacturing related information (such as type of operations or materials) associated with the 3D geometry. In addition to that semantic PMI can be approached programmatically, which allows to build engineering software on top of it.

Graphical PMI can be generated from semantic PMI. Graphical PMI most commonly is a set of polylines, that you actually see in the 3D view of applications. It’s only aim is to be human readable and it can’t be accessed programmatically.

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Some of the CAD file formats can carry PMI data (such as JT and STEP AP242, both supported in CAD Exchanger) and in latest CAD Exchanger Cloud release we added it’s support. At this moment CAD Exchanger only supports graphical PMI, the support of semantic PMI is already on it’s way.

Cad Exchanger Torrent

To enable PMI just go to the product structure and locate any element of the tree, which has a small 'plant' icon next to it. This will open PMI panel to the right with the available PMI entities. You can either enable them all, or enable one by one. In addition to that, if model carries so-called 'model views' (pre-set of the camera position and enabled PMI entities) they will also be present in the dropdown menu.

Support of VRML 2.0

Initially designed for web in 1994 VRML has undergone lots of changes and subsequently has been ‘pushed out’ by it’s successor X3D, which is currently state of the art 3D format for web.

However, there are tons of VRML data out there and lots of people successfully use it today, therefore, for the convenience of our users, we’ve decided to extend our support of VRML, and added missing VRML 2.0 to our scope of supported formats.

Background settings

In the software developers community there is a meme related to those, who use light theme in their software applications.

As you might have noticed, CAD Exchanger Cloud is light, so even our own developers found it hilarious that we can’t switch gorgeous purely white background color to dark. In addition to that, we received an inquiry from our user, who requested to add the ability to tweak the background settings and that was the moment we surrendered and decided to add this (the most controversial) feature to our product.

Now In CAD Exchanger Cloud you can change the background color in the ‘View’ menu. For that just click the ‘eye’ icon, and there you will find the ‘Background color’ item. There you can choose any color from the presets on the right, or fine-tune your custom color in the color picker. Once selected, the square icon next to the menu item will take the selected color.

Thank you for your interest in CAD Exchanger Cloud. Stay tuned for more upgrades and please let us know how we can improve our product to make it more suitable for your day-to-day live.

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