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Can't seem to get homing working
- electrophile
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8 years 4 months ago #111575
by electrophile
Replied by electrophile on topic Can't seem to get homing working
@Sparky961, Thank you. That helped immensely and I was able to get my homing right. I'm still a little confused about HOME_IGNORE_LIMITS. So if I set this to YES it will ignore the physical limit triggers for that particular axis but not the others? I was confused by that documentation.
@DanMN, Thank you for that detailed explanation. I had the my machine home to the bottom left corner of the table while my X0 and Y0 are at the top right corner. This is where the HOME_OFFSET helped. Contrary to what you've suggested, I had to make this a larger number, in fact, it had to be the whole length of the X and Y travel, but at least it works. I've attached my final config files here.
@DanMN, Thank you for that detailed explanation. I had the my machine home to the bottom left corner of the table while my X0 and Y0 are at the top right corner. This is where the HOME_OFFSET helped. Contrary to what you've suggested, I had to make this a larger number, in fact, it had to be the whole length of the X and Y travel, but at least it works. I've attached my final config files here.
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8 years 4 months ago #111592
by Sparky961
HOME_IGNORE_LIMITS=TRUE only ignores the limit switch for a given axis while homing. When home/limit are the same physical switch this prevents the machine from tripping the limit switch while homing. After homing the limit switches are active and will cause a limit switch error if tripped. Your soft limits are intended to keep the machine tavel between the physical limit switches. Tripping a limit switch indicates that the axis has, for whatever reason (like the machine not being homed), traveled into a prohibited region and causes shutdown and an error message.
Replied by Sparky961 on topic Can't seem to get homing working
electrophile wrote: @Sparky961, Thank you. That helped immensely and I was able to get my homing right. I'm still a little confused about HOME_IGNORE_LIMITS. So if I set this to YES it will ignore the physical limit triggers for that particular axis but not the others? I was confused by that documentation.
HOME_IGNORE_LIMITS=TRUE only ignores the limit switch for a given axis while homing. When home/limit are the same physical switch this prevents the machine from tripping the limit switch while homing. After homing the limit switches are active and will cause a limit switch error if tripped. Your soft limits are intended to keep the machine tavel between the physical limit switches. Tripping a limit switch indicates that the axis has, for whatever reason (like the machine not being homed), traveled into a prohibited region and causes shutdown and an error message.
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