[ZeGas]

Hi Grant.

Chitu has a hollowing feature, you set the wall thickness but it only works on solid objects.

I used Netfabb to hollow this file, I think it's included in Chitu

It is in the pro version, I have bit the bullet and purchased.

...
Blender purely to convert STL to DXF and back again
and AutoCad for mods.
On bodies I keep running out of memory and crashing in AutoCad as it only uses a single core processor.
But I persist.

What version of AutoCAD are you using?
You can send me the file if you want a more powerful computer to churn out your file...

Send me a PM if you're interested and we can have a chat about it.

Problem is not computer, it is AutoCAD not having multi thread capability.
I have worked on autocad since its inception so can't be bothered learning new software, that curse of getting older I guess.
Thanks for the offer though.
I do have my work arounds.