I have 3 TB6560 single axis boards running my CNC... I messed up a stepper, and in the process of playing, let the smoke out of one of the 6560 chips. I cannot find ANY stepper motor driver IC ANYWHERE in Houston! It seems ridiculous. I did manage to find one EasyDriver (very small red rectangular board) It runs the new stepper fine when no load, but it wont turn my screws. I also have a L298 based board from ebay. If I use them together, it works, but instantly too hot and stops. I have to wait ANOTHER several weeks for a replacement. Is there anything I can do with off-the-shelf parts that I can ACTUALLY FIND in a radio shack or EPO that would get my 3rd axis running again??