I am new to VEX robotics and just received a V5 on Friday. I had no trouble putting it together over the weekend. Also had a lot of fun driving it around.
One thing I have noticed is that the axles tend to slip laterally after several minutes of driving. The symptom is that the robot will no longer drive straight, but starts turning donuts. The fix is to push the axle back into the motor so that it engages the square hole and turns. The rubber washers that are supposed to keep the axle from sliding laterally are not doing their job. They seem to fit snugly, but they don’t stop the eventual slide of the axle.
Got any suggestions to prevent this from happening?