I really appreciate your feedback Thanks a lot!Ravenous wrote:Oh, also as Joan says, more voltage on the battery will help turning too.
I've never used the L298, only the much smaller L293D (though with both sides wired in parallel), and they are enough for quite a heavy robot at 12V! I really think your L298 is good enough.
Also - your diagram shows 6 alkaline AA cells. Note that alkalines can have problems supplying high current, which tank tracks will need when turning. When I did some experiments with a 4 wheel drive robot, I measured current draw when turning, and it was probably 2x or 3x the straight-line current. With a tank track it will probably be the same ratio, if not worse...
So, try more batteries, or higher-current batteries?
That was the precise issue I have last nite and could not understand the reason!
The situation with robots tanks must much worse and actually, the robot was on carpet...
The robot moves fairly fast straight but not turning at all! What was happening?
Since the robot is quite heavy carrying 6 new AA alkalines. I made an attempt to remove two of the batteries (so less weight) but same story, it doesn't want to turn.
Please, what batteries would meet your the "higher-current batteries" requirement?
I don't really wish to add more alkalines there because as I said before, the robot is quite heavy now.