Wow, that is really exciting! Looking forward to trying it! And I am sure that it will have several uses beyond shaku, I heard they use a plethora of units in India, otherworldly yet widespread units like the angula purportedly equivalent to eight barleycorns side by side.

Thank you for your suggestion. I have however in increasing desperation and frustration found a solution that seems to work. Downloaded a trial version of Deep Exploration, a notorious 3d conversion program. To my great surprise it does the job very fast! Opening my very complex model takes about 3 minutes, but then exporting a pdf or ai files takes about 30 seconds. And judging from what I have seen so far, the output is flawless. Literally tens of thousands of lines are outputted almost instantly. I am happy! So this is just an advice for other users with the same demands I have. Deep Exploration seems to be able to do it.

@gaieus said: Hi Lee, Have you tried to export from LayOut then? It has some different exporting algorithm as far as I know and you could be more lucky with that. Vector and hybrid rendering modes export edges as vectors. Pure vector from LO would be the same as PDF from SU. Hybrid from LO may be faster since it doesn't have to create vector faces.