Roman scorpion blueprints?

[Crispvs]

You could also get volume 11 of JRMES and have a read about Alan Wilkins and Len Morgan's reconstructed Vitruvian scorpio:

http://www.jrmes.org.uk/

Alan Wilkins' inexpensive but surprisingly comprehensive book:

http://www.amazon.co.uk/Roman-Artillery ... 842&sr=1-3

Duncan Campbell's Osprey book:

http://www.amazon.co.uk/Greek-Roman-Art ... 842&sr=1-2

And of course, there is Eric Marsden, here:

http://www.amazon.co.uk/Greek-Roman-art ... 842&sr=1-7

and here:

http://www.amazon.co.uk/Greek-Roman-Art ... 842&sr=1-4

I hope this helps.

Crispvs