Two versions of the same machine: highspeed on conventional tracks and slowmoving with evil tracks with slats and torque reduction gears.
Assembled from the components of LEGO Technic constructor.
16 springloaded track rollers, 4 gear rollers (2 driving and 2 driven), 2 electric motors, 2 infrared receivers, 1 remote control (IR RC) with 3 batteries, 2 battery packs with 12 batteries.
The video shows the creation, detailed funny assembly of this car (caterpillar track machine), test runs on snow, snow drifts, ice and mud outdoor on the street with an interesting overcoming of various obstacles.

00:00 Build and assembling the machine
02:37 Test runs of the first model on snow
07:39 Modernization (reducers and toothy tracks)
09:34 Riding the second model through snowdrifts
13:27 The End. Unsurmounted obstacles

#lego #funbrick #tracksuspension #legotracks #legosuspension #legotracks #legocaterpillar #legosnow #legowinter #legotechnic #engineering