I have watched as many tutorials on Mach 3 as I can and I think I understand the basics now so have started to try and learn how to set things up however I have a few questions.

the first is what is the best way to change the direction of a stepper ie my x axis goes positive to the left and I want it to go to the right and the same for my y

the second question is with limit over rides . At the moment with that the override limit box clicks but the box doesn't go green , the auto limit override box clicks and goes green but does not seam to have any effect and I can't get it off the switch to re set without doing it manually.

Third is is that I have had a go at calibrating the x axis which is running the 1-4 gear box and the steps per calibrated at 16.2 which from what I gathered is very low so just questioning that?

Best regards charlie