2.8pre gantry racking

I suspect your changes confirmed a wiring error on your part. I had a similar problem as yours once and eventually I worked out that I had swapped the stepper driver wiring around so X1 was using X2's homing switch and vice versa.

It did my head in trying to debug this fault. Eventually I slowed the homing velocities to a crawl and got a clue about what was wrong.

@rodw: Bingo, that makes perfect sense !! I must have the X0 and X1 switches flipped. Agghh, that explains why swapping the parallel port pins in the hal file for the home switches got it sorted out after I put them on unique pins.

I built this bot 9 years ago, and haven't used it for the last couple of years. Have a need now, and added in the home switches with the software upgrade this week. Guess I have the motors marked wrong and it never mattered which joint was which on the X axis until I added in the home switches. Sigh.

Thanks again,
Rick