Today I finally got the Mr. Robot, ordered last week. This little kit will form a base for many joyful moments in future. The Mr. Robot is basically a 4x4 car body with two electric motors. The steering done just as in a Bobcat; braking (or free-wheeling) other side while running the other.
The box contains all (!!) the parts in small plastic bags and a nice instuctions manual in Chinese or Japanese. Fortunately the Google found instructions also in English. Of course, it is a shame to use the instructions at all, but luckily the assembly required also some craftsmanship:) As a nice bonus, there were two extra gears to front or rear axles and quite a few nuts with vinyl locks (so tight that I did not actually dare to use them).
The cheap price of the kit, 19€ could be seen on many parts. For instance, the body and parts that hold the drive shafts required quite a lot of fine tuning with pliers to make the transmission work without too much friction. Bolts and axles were also made from a bit soft metal, but none of them actually broke. Overall, the assembly was easy and resulting car is of better quality than expected.
Almost done. Oops, forgot to add back the two bolts to bumper, which were removed during assembly to make room for pliers holding the axle while tightening the tires.
The three AA rechargeable batteries inserted just to test that the mechanics and motors work. I could not find specs for the two motors, but fortunately they are replaceable. What worries more is the mechanics, if it bears even the current power capabilites.
The front transmission system required some care, as the metal frame at the inner end of drive shafts was not correctly aligned. The end result was that there were so much friction that left side motor could not turn the wheels. Now it works quite smoothly, but I had to leave the left front axle's bolts a bit loose. The chassis plate deserves a bit adjustment (=bending) and perhaps the axles should be greased too.
Ready to rock'n'roll. Next it will get the motor control circuit. To be continued.
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