Automatic gearboxes

There are a few kinds of Lego Technic automatic gearboxes, here some examples:

The first one, a two speed gearbox by Sariel, based on a 3 speed design by Misha van Beek 

Another automatic design by Misha van Beek 

Click Here to see it working

This gearbox by Zblj using 2 differentials switches between 1:1 and 1:5 gear ratios:

Sariel make a more compact version of this and published this two shots at facebook

From the same builder is this 3-speed "simple, yet effective gearbox, using a very unique design to change gears"





YotamPoleg show us in the first part of this video a real CVT gearbox:

Another interesting concept, this one is controlled by a centrifugal device:


By error4385

And finally my own first prototype of automatic gearbox, mixing Misha and Zblj concepts, two differentials to switch between 1:1 and 1:5 gear ratios, and a third differential to unlock the 1:5 gears when more torque is need and lock it when less torque and more speed is wanted, also the 1:1 gears got anti-return device in order to prevent the stop of the entire gearbox.

Smart Limited slip differential

A good, simple, compact and well working Idea for a limited slip differential, found in BUZ's brickshelf gallery

My Trial-Buggy FAIL

I have failed, but I have learned a lot...

Pancake Bot

Tasty creation! Really interesting device!!

The Pancake Bot (PB) is basically a 3 axis CNC made that uses the Z coordinate as the Pancake Batter Dispenser Control. This one just happens to be made out of LEGO.

The complete entry and explanations at makermig.blogspot

Mechanical GBC train module

Yes, I say MECHANICAL instead of electronic, because this module is all made without mindstorms, wedoo or other electronic devices... mechanical automatism brought to perfection

Just see how great this is:



The loading module

And a closer image of the automatic loading mechanism:

The switch-clutch selector, equivalent to the vintage monorail LEGO system,  see the output gear and the clutch selector in booth sides:

The loading trains:

Hope this great builder make another creations and videos soon. Meanwhile check the akiyuky's previous entries in this blog or also his blog, (google translate will help a little) to check another ball factory:

Lego Technic Pneumatic Vehicle by Nico71

As a fan of steam and Lego Technic pneumatic creations this car must appear here:

It has all steam basics, boiler, flyweel, distribution valve and a "decorative" centrifugal speed regulator valve...

...Steering and pilot operated clutch!

Like almost always I recommend to watch the video to see the Moc in action!

Nico's topic on SETECHNIC  and other entries of this blog about NICO71's creations