Quote Originally Posted by Kitwn View Post
Call me stupid, but what exactly do you adjust to make the gantry square once the whole sequence has finished? What is the purpose of step 4? Do you have separate cotrol of the two X distances in 6?
Ok your Stupid. . . .But so am I because I'm not seeing it either.?

To me it's just homing each axis separately, waiting until both inputs go high and backing off until both go low then moving both to a set distance.! It's not doing any individual axis correction and as the switches don't move it's not corrected anything.? Yes, you can square the gantry by offsetting switches using this method, which is how mach3 etc do it but so can any homing system really.!

If you want a true squaring system then it needs to drive each motor separately and adjust to a set distance. For instance, the CSlabs squaring system gives you options to measure the offset between the switch triggers and gives you the option to apply a correction to a set distance or let the system do it automatically. In which case it drives both motors until the first switch goes high then backs both off until it goes low, then it drives the opposite motor until switch goes high measures the difference and moves that axis only the measured difference. It's strange to watch as it does a little dance and the gantry is then aligned to the first switch.
If you want to apply an extra offset to twist either side then you can set a +/- distance for either side which it will apply after homing. It then backs both off a set distance if required.