[ODE] box stacking instability

[Russ Smith]

> I presume this is due to impulses
> correcting for penetration of the top box into the lower box.

actually, ODE does not use impulse based methods.

> On a side note, the same professor mentioned the Arachi dynamics
> engine(www.arachi.com).  It's commercial and exceedingly expensive
> ($30,000) but he speaks very highly of it.  It would be interesting to
> potentially adopt some of their techniques...

hmmm ... the web site gives no clues about the techniques (or about
anything, really). does anyone know what arachi is doing?

russ.

-- 
Russell Smith
http://www.q12.org