Finally got inspiration back to continue modelling. It has been almost 4 months of nothing done.
You may remember from earlier comments that I was planning to use a gas cylinder as tension spring for the tracks. Well it turned out very expensive, and not so prototypical. Did some drawings last weekend and build 2 set of springloaded tensioners.
It´s quite simple in design and to stiff up the track I use a small wrench (?) thrue the hole where you normaly (in 1:1) use the grease gun to tighten tracks.
video showing how it works can be seen here:
http://www.youtube.com/watch?v=rQ2UajMkvWE
Dan