Simon Dibbern

I'm struggling to fully introduce the pyecma376-2 dependency. Suggestions from anyone familiar with the build-pipeline are welcome.

@jmwright Thank you! Meta.xml requirements are obviously conda packages. But since I couldn't find any suitable package capable of doing OPC/OpenXML/ecma376-2 on conda, I had to go with pypi.

I should have gone without the pyecma dependency from the beginning. I removed it and it hardly made a difference in complexity :+1:

Just for the record: 3MF supports compounds (ie. groups of objects). I have implemented that and it works really nicely in Cura. It shows the objects as a "group", and...

> @SDI8 Where does this PR stand? Is it ready for review? I'm assuming this means zlib will need to be added to the dependencies in the various config files,...

@jmwright thanks for your feedback. Yes, Cura places 3MF files at origin (0,0). In contrast to other formats, it does not perform the auto-arrange on import. And it will complain...

> @SDI8 can you comment on the need for custom Python build support? That's up to you. It might be a very rare case, but it's only a few extra...

Shouldn't all of the "shape-formats" be supported then (and not just STL)? This situation is very similar to what is happening with Workplanes in [`exporters.export`](https://github.com/CadQuery/cadquery/blob/a5fadebe72b2a46881c3847cca748b8cf716ccd0/cadquery/occ_impl/exporters/__init__.py#L59), where any Workplane gets converted...

I might be late to the game, but I am successfully using pythons `multiprocessing` in multiple projects to generate large numbers of parts in parallell. I use `copyreg` to register...

Sure! Here is an example of generating 9 cubes of increasing size in parallel. I am using `Pool.map`, but any way of spawning a `Process` using `multiprocessing` should work. As...