Bill SCHONFELDER An early morning present to Texas. Blockly tidied for BORK DC motors and uploaded. You now have independent control on the two motors in the forwards and backwards functions. I have added a rotate left and rotate right. If BORK does the opposite (your motor setup is the mirror of mine), then just rename the two functions. By varying the ratio of spA and spB in the forwards/backwards functions you should be able to experiment and have BORK veering left or right. He should now be able to groove dance in a lumbering sort of way. All tested and working - tell me if you have any issues.

You'll need to re-activate the blocks I disabled to check the motors alone (right click on the greyed out code and 'Activate').

Have fun!