Homing
03 Nov 2022 12:38 #255841
by Clive S
Not sure what you mean by the + it is either - or no sign (ie. blank)
Are you saying that the HOME_LATCH_VEL = -0.833333 does not change direction when you remove the sign ?
Hello Clive
thanks for your replay. YY shold by Y. Y sorry for misleading you. The - and + I checked allredy without succ.
Not sure what you mean by the + it is either - or no sign (ie. blank)
Are you saying that the HOME_LATCH_VEL = -0.833333 does not change direction when you remove the sign ?
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03 Nov 2022 15:00 #255848
by Clive S
It is very difficult to help if you don't give feedback .
There should be no + sign it should be a minus or no sign at all .
You did not answer the question.
#Are you saying that the HOME_LATCH_VEL = -0.833333 does not change direction when you remove the sign ?#
The sign signifies which direction the machine moves when homing and latching.
I mean the + - changes didn't solve my problem.
It is very difficult to help if you don't give feedback .
There should be no + sign it should be a minus or no sign at all .
You did not answer the question.
#Are you saying that the HOME_LATCH_VEL = -0.833333 does not change direction when you remove the sign ?#
The sign signifies which direction the machine moves when homing and latching.
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03 Nov 2022 17:11 #255856
by tommylight
Replied by tommylight on topic Homing
Also no hal and ini files.
As a general rule, set all home_xxxxx_velocity to small numbers and watch the machine what it does for each section.
As a general rule, set all home_xxxxx_velocity to small numbers and watch the machine what it does for each section.
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03 Nov 2022 20:20 #255866
by chris@cnc
I found two things who i not understand.
First you wire all home switches in one Signal
net all-home => joint.0.home-sw-in
net all-home => joint.1.home-sw-in
net all-home => joint.2.home-sw-in
should be
net home-x => joint.0.home-sw-in
net home-y => joint.1.home-sw-in
net home-z => joint.2.home-sw-in
second the HOME and HOME_OFFSET value in your ini
Not sure how to do it right but i would try to set
HOME_OFFSET = 0
and HOME = 3
If i understand right, your switch detects zero point and machine should move after detection 3mm forward that you not parking on limit position.
On your X and Z Axis is all zero. Does it work there?
First you wire all home switches in one Signal
net all-home => joint.0.home-sw-in
net all-home => joint.1.home-sw-in
net all-home => joint.2.home-sw-in
should be
net home-x => joint.0.home-sw-in
net home-y => joint.1.home-sw-in
net home-z => joint.2.home-sw-in
second the HOME and HOME_OFFSET value in your ini
Not sure how to do it right but i would try to set
HOME_OFFSET = 0
and HOME = 3
If i understand right, your switch detects zero point and machine should move after detection 3mm forward that you not parking on limit position.
On your X and Z Axis is all zero. Does it work there?
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03 Nov 2022 23:52 #255879
by andypugh
Actually, this is fine (if a little parsimonious in IO Pins) as the config is set with one GPIO pin for all home switches.
This does mean that it is important to set the INI option
HOME_IS_SHARED = 1
For each joint, though.
(which might or might not help with the current problem)
You have to make sure that each axis moves off the switch before the next tries to home, or they will never see a switch transition.
See also "HOME_IGNORE_LIMITS" though that certainly isn't the problem at the moment as the config has no limit switch inputs defined.
I found two things who i not understand.
First you wire all home switches in one Signal
net all-home => joint.0.home-sw-in
net all-home => joint.1.home-sw-in
net all-home => joint.2.home-sw-in
should be
net home-x => joint.0.home-sw-in
net home-y => joint.1.home-sw-in
net home-z => joint.2.home-sw-in
Actually, this is fine (if a little parsimonious in IO Pins) as the config is set with one GPIO pin for all home switches.
This does mean that it is important to set the INI option
HOME_IS_SHARED = 1
For each joint, though.
(which might or might not help with the current problem)
You have to make sure that each axis moves off the switch before the next tries to home, or they will never see a switch transition.
See also "HOME_IGNORE_LIMITS" though that certainly isn't the problem at the moment as the config has no limit switch inputs defined.
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05 Nov 2022 08:42 #255993
by __Tom
Hello together,
Issue is fixed!
The problem I had was on the input pin. I never got a clear LOW. (As you can read in the mesa user manual <=9,6V)
I have this proximity sensors in use and had to add another 4.7K against the field power to bring the voltage to it.
Now the signal becomes clear and the homing is working perfectly fine.
Perhaps this post avoids it for somebody to step into the same trap.
Again a THANK YOU to all the peoples who tried to help my.
Issue is fixed!
The problem I had was on the input pin. I never got a clear LOW. (As you can read in the mesa user manual <=9,6V)
I have this proximity sensors in use and had to add another 4.7K against the field power to bring the voltage to it.
Now the signal becomes clear and the homing is working perfectly fine.
Perhaps this post avoids it for somebody to step into the same trap.
Again a THANK YOU to all the peoples who tried to help my.
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