Official LEGO Technic blog, published a post with a long Torque Talk about gears.
After an introduction to the different type of gears, Markus Kossman also talks about the different functions of the 42009 Mobile Crane MK II, how different gear trains helped to achieve them, the challenges faced and adopted solutions.
And we got to know that guys in Billund are really happy with the newly-developed frictionless 8 tooth gear wheel that slides across axles, and promise to use it again in future models.
Read it all, here!
PS: For the case that someone who can change it, reads this... - Unfortunately the latest version of LEGO Technic Designers Blog does not provide the usual feed to integrate with TBs favorite blogs notifications list (one of the Blogger widgets on the right columns), hence we notice the new posts sporadically (yeah, I do not get there everyday to look for news...).