Appearantly creating a more complex shape consisting of multiple separate parts in OpenSCAD is testing the limits. After adding a couple of connectors between parts, the preview slowed to a crawl and exporting parts took ages. So I set out to test various CAD tools to find one that was affordable and easy to work with. For the moment I’ve settled on OnShape while I attempt to make the models for the rear door.
My biggest problem with OnShape so far is that you can only have a couple of private documents, and more importantly they cannot be more than 100Mb. Now you would figure that would be enough for some basic stuff, but with the whole version history even a simple frame as the one above takes up about 30Mb of space. I might end up having to make the design public just to get around the 100Mb limit.