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Mach3 home not working
« on: January 31, 2020, 12:08:50 PM »
Hello everyone. please help me sort out a b.up that I made
I have been reconfiguring my Mach 3 because I fitted different pulleys
and needed to recalibrate the steppers.
I changed something in ports and pins and now the home function doesnt work.
when I select HOME X the slide moves correctly until it engages the mechanical
home switch and then it stops and switches the emergency stop LED to flash.
it doesnt move back off the home switch as it is supposed to do.
Anyone know what I could have done?  where should I look?
when it touches the switch i have to move the switches cam off the switch,click the emergency
stop switch off and then move the cam away from the switch manually
think of the trees-- use both sides of the computer paper
Re: Mach3 home not working
« Reply #1 on: February 01, 2020, 05:09:46 AM »
Hi Fred,
Sounds like the limit switch you are triggering is not configured as your home.
Have you checked if the port# and pin number in the configuration tab (XHome, YHome, ...) corresponds to the one you are hitting?

Pietro
Re: Mach3 home not working
« Reply #2 on: February 01, 2020, 07:08:26 AM »
Thanks Pietro -
How can I find this out?
There is an option in input signals that says "automated setup of input signals"
Is this were it is done and how do I use it ?
Otherwise please advise how to do it
regards

fred

think of the trees-- use both sides of the computer paper
Re: Mach3 home not working
« Reply #3 on: February 01, 2020, 07:34:47 AM »
I’m not at home at the moment so I can’t take screenshots but if I remember well:
- config menu
- ports and pins
- input tab

There you have to setup both port and pin number for all the switches. So for instance:
X++ port 2 pin 10
X - - port 2 pin 11
XHome port 2 pin 11 (same as X- -, if you only have one switch)

The pin numbering needs to reflect your hardware configuration
Re: Mach3 home not working
« Reply #4 on: February 01, 2020, 07:45:35 AM »
thanks pietro-
does your machine have 2 lpt ports
mine only has one?
Please explain how to find out the hardware configuration?
think of the trees-- use both sides of the computer paper
Re: Mach3 home not working
« Reply #5 on: February 01, 2020, 08:11:46 AM »
Problem solved !!

Its OK Pietro . I solved the problem by reloading an old xml file from December ( before I
started with my mssing around ) an it works OK now.
I think that all i got yo do now is to recalibrate for the motor changes!!
Many thanks
Fred fromsouth africa
think of the trees-- use both sides of the computer paper
Re: Mach3 home not working
« Reply #6 on: February 03, 2020, 09:08:30 AM »
Happy to hear that!

One note: if you open the xml file with any text editor, you can read in plain text all the configuration's details (including the pin assignments for each input/output)

Pietro