The stepper drivers are 'for makerbot' which I think is a Tmc2100 .. I don't need to design them from scratch.. as stated earlier, the issue is the feedback which is generated from any motor when it's turned by hand, in this case, when the carriage or build platform need to be moved by hand when the device is off. this generates a current which is then thrown into the board and cause lead to spikes and the screen, for example, turning on briefly. while this can be partly controlled by being very careful to go slowly when moving, but at times, can be hard to avoid and I was looking in to methods to pretty much remove this from beign a problem. A diode on the power line between the board and the driver was suggested and I was going to try this out, but the first problem, without dealing with bending pins, would be to have some form of 'extension' so the diode can be added without physically modifying the stepper driver or the board itself. I did wonder about doing it between the motor and the driver but it didn't take too long (and was even confirmed) that this was just a stupid idea which wouldn't work anyway. as the Driver pins plug into the sockets on the board for easy replacement, the location of where to put the diode is somewhat limited