Dual gantry stepper homing with uneven switches

Lunkwill wrote: I see you have them set to -1, which the docs say means that joint won't be homed at all. Is it a magic value in the case of dual axes that causes it to do the right thing?

A single joint with -1 will not be homed normally, but both joints with -1 will be homed as second in the sequence, first being the one with 0 value. If you set any other joint with 1 in the homing sequence it will home together with two of the joints with -1 value.

Lunkwill wrote: Here you go. Do you mean the HOME_SEARCH_VEL and HOME_LATCH_VEL? Yep, those are the same for both of the gantry joints.

No. as you see above it is the home sequence that has to have both joint for X the same -ve number.


HOME = 0.0 this is the final postition for home
HOME_OFFSET = -3.349 this is the value to offset the gantry square ie 0.1 etc. the sign will denote the direstion of travel
HOME_SEARCH_VEL = -1.0 this is the value of the speed to serch the sign will denote the direstion of travel
HOME_LATCH_VEL = 0.1 this is the slower speed to latch
HOME_USE_INDEX = NO
HOME_IGNORE_LIMITS = YES
HOME_SEQUENCE = 1 this has to be -ve so that both joints will be in sync

Not sure what "-ve" means, but thanks for the explanations and links to the current docs. Setting the sequence numbers to -1 worked great.

Lunkwill wrote: Not sure what "-ve" means, but thanks for the explanations and links to the current docs. Setting the sequence numbers to -1 worked great.

-ve just means negative. In other words 1 would be a positive number and -1 would be a negative number