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
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5 comments:
Is that a new worm gear in the first photo? I googled it but couldn't come up with any imnfomation.
@Gordon Howard
Yes, it is a new 1H14 design, coming in a few LEGO Technic sets.
http://www.bricklink.com/catalogItem.asp?P=15457
As I read this, at first I thought that they used the pictures right out of my "Technical Fundamentals" page. But it turns out they are just very similar. This is a very comprehensive article and the most detailed description by the LEGO team of the function of one of their products that I have ever seen. Glad to see them making their website more like Technicopedia! This functional cutaway shots look very familiar. :-)
I had a similar feeling when I read about "Torque Talk".
I think some fans have been providing great inspiration moments to the Technic team. It does not end here and hope it will continue as there are many suggestions going on out there.
...No one answered this time for a Tech Talk... :P
It's a pity both type of articles could easily go in parallel.
And btw, do you remember our suggestions for articles... ;)
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