Robot doesn't turn in high gear

[Lil' Lavery]

Originally Posted by JohnMorenski

well i know that this has been posted before but i also know that other teams are having this problem and im sure they want all the info they can get. it seems that we are not getting the full potential out of our andy mark shifters not in low gear, low gear works great, but in high gear. we cannot turn in high gear, the battery voltage on the O/I drops and the motors seem to stall, we are using 1 big cim and 1 little cim on each gearbox any input????

would it be a smarter choice to switch to 2 small cims on each gearbox??

You're generating more torque in low gear, which means your robot will experience more torque when trying to turn, resulting in better turning. There are a number of ways to solve this problem. Increasing the torque in your shifters (by switching to 2 small CIMs) is one option. Another would be reducing the ratio between your shifters and wheels, and/or using smaller wheels (both of those would reduce your speed though). You may also want to consider lowering the traction of your wheels, or even using a pair of omni wheels to improve turning.