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Author Topic: New configuration now homing issues.  (Read 4668 times)

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Re: New configuration now homing issues.
« Reply #10 on: January 28, 2012, 08:39:01 PM »
Hello DWalsh62,
If you can find what you are looking for by decompiling the code go for it! The trouble is that it is not going to help you.. There is NO setting for the pull off amount. I will tell you how homing works and then I will tell you about what is going on with your system.

How it works:
1.) Machine starts by doing a move looking for the home switch
2.) Switch is found and motor decelerates (based on the motor tuning settings)
3.) Motor reverses looking for the switch to open back up at 20% of the home speed (this is what you are calling the pull off move)
4.) Switch opens back up and the motor decelerates
5.) Axis machine position is set to zero

As you can see I never said anything about pull off distance because there is none..

What could be your issue (this is after working on problems like this for over 10 years) :
Electrical noise... How do you know that is what it is .. well I think you are telling me that it is not pulling off the home switch. On the diagnostics page please tell me if the home switch is still active after the homing is done. If the machine is on the switch you need to add some debounce to the inputs. This can be found under config general config, I would start with about 500 and see if that helps.

Now as far as you thinking that we are not responding ... I could see that there where people looking at your post as soon as you put it up.. ALSO we have full time support staff to see that if you contact us you will get taken care of in a reasonable time. I don't see the need for being so nasty, it is okay because I forgive you :) I know it can be frustrating when setting up a machine and you need to get parts done and you are dealing with software issues. Best of luck and if you need help please feel free to contact me directly.

Thanks
Brian

I really need someone like yours help with mach, although I am not upset with anyone or the software or the machine, I just am not getting it is all, I have spent over 100 hours trying to figure this stuff out and am pretty frustrated, again not with anyone or anything but myself, it does not seem this confusing. but for me it is right now for some reason

I can;t even figure out how to set 0.0 as home (not limit switches, and I _think_ I understand the difference thanks to Tom at CandCNC)  righ now my machine started going +1.0 on z Axis even after setting all axis to zero at a given location for instance, I have my z about 3" off the table, press zero, then if I press go home, it blasts right past that and the dro reads +1.0

I'm not sure what I have done to create this issue
I looked at he videos some, is there a way I can download them to take them out to the shop by the machine?

thank you

thank you
If I might offer some suggestions in solving your problem which on the surface, appear to be only configuration related issues (mine was just not thinking).

Look in Config->Homing/Limits, there is a section for G28 Home location which is where you want the axis to go when home is issued, if you want Z at 0 then make sure the corresponding Z field is 0.  Make sure that your Z home settings are correct, 10.00, -10.00, 1.00, 0.00 would be typical imperial values, 100.00, -100.00, 10.00, 0.00 would be typical metric values, check Auto Zero for all axis and you would only check Home Neg. for X and Y axis.

This should give you the results you are looking for.

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Re: New configuration now homing issues.
« Reply #11 on: January 29, 2012, 05:23:44 AM »
If I might offer some suggestions in solving your problem which on the surface, appear to be only configuration related issues (mine was just not thinking).

Look in Config->Homing/Limits, there is a section for G28 Home location which is where you want the axis to go when home is issued, if you want Z at 0 then make sure the corresponding Z field is 0.  Make sure that your Z home settings are correct, 10.00, -10.00, 1.00, 0.00 would be typical imperial values, 100.00, -100.00, 10.00, 0.00 would be typical metric values, check Auto Zero for all axis and you would only check Home Neg. for X and Y axis.

This should give you the results you are looking for.
[/quote]
they are all o.o , found and solved that one issue, it was a config setting for the go home button, fixed that with screen4 thanks to the help of users on another thread i started

I am still missing something using home switches  though. i have not got that figured out, in my head or on the table it seems!

Thanks for tips!