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Lego M4 Sherman Crab (RC)

Finally it's done, after over 2 months of work, I have completed a fully motorized M4 Sherman Crab in 1/18th scale. This model was planned ever since I started building tank MOCs, I would have to say this model is one of my most complex builds, as it features 7 power functions motors in a compact space. It features a 2 speed transmission, working mine flail, dual synchronized linear actuators for flail elevation/ depression, turret traverse, gun elevation/depression, and a electronic clutch braking system.

 

I am pleased with how well the turret turned out.... ha ... as it is round and was a complex shape, but with SNOT techniques I was able to create the rounded angles. Nearly everything is aesthetically perfect, except for one dimension, the height of the center of the hull is 2 studs too tall because of the mechanisms for the transmission and elevation of flail, thus I made that and the turret slightly larger by 1 stud taller. Though this isn't too noticeable, as the Sherman is already tall because of the real vehicle mounted a radial engine.

 

This will be my last MOC until college, I am unsure if I will be able to build anything else during breaks, so it may be until next summer for a larger tank... 1/15 Maus...

 

video

www.youtube.com/watch?v=tJ2THAtknek&feature=youtu.be

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Uploaded on July 23, 2015