Idea for LUA script to create a knolling layout

[Philippe Hurbain]

Nice!
I get an error though:

Code:

[string "knolling.lua"]:3: attempt to call a nil value (method 'getBoundingBoxMin')

(I saved this scipt knolling.lua)

Do you use 1.7 beta 1?
Worked fine here... 
The "bugs" I noticed are some overlaps (rounded corner plates) and weird height (antennas, heads). Or is is a problem in the bounding box function?