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crawler v.4

crawler with RC-model tires

Tuesday 26 November 2013, by zver


See it online

Technical data

Scale (wheels used)
Width 21 studs
Total Weight 900 grams
Transmission 4x4
Motorization 1 motor(s) - PFS XL

working fake motor
Steering motor

without steering wheel
Onboard Battery Box PFS AAA Battery Box

This is the 4th version of my lego crawler. The first version was build more then two years ago. I’ve used RC4WD Rock Crusher X/T 1.9 Tires on current model. Other changes are:
1. The main gear ratio is reduced from 1/1 to 12/20
2. The linear actuator is used in steering mechanism instead of of worm gear. It lets to make the front axel simplier and lighter.
The cross-country ability has risen noticeably.


View online : Outdoor video

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