Unable to setup homing <answered>

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guerra_cues
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Re: Unable to setup homing

Post by guerra_cues »

Sword wrote: Sat Dec 04, 2021 5:51 pm It appears that you have not set up anything in the Wizard for inputs/outputs and possibly axis configuration. We have no idea what your machine needs as far as configuration for drive type, type of prox switches (NC/NO), and axes config, you'll need to provide such information. When you chose a drive type, you need to "load" it and follow the prompt from the Wizard (sometimes you need to scroll up/down side/side to see the "Load Drive" buttons). After that you need to work your way through the Wizard and set your inputs/outputs, axis config accordingly and then chose to "write" those settings or none of it will be saved.

Your current homing file (created by the Wizard) is just a simple home, meaning that when prompted to hit cycle start, it just sets home at it's current position. Setting the inputs correctly for your switches and the settings in "Homing" will then change that routine.
Hello Scott,

I have all the axis configured correctly, distance and degrees they are supposed to turn all looks good. Motor configuration looks accurate as well.
After a bit of more investigation found out the blue tip of the limit switch on the X was busted so I am going to replace it, Y trips fine and Z is not tripping for some reason (will investigate further). I will update this post on the outcome.
I was able to Home the machine manually and when I tell to Park it goes Home.
Thanks again for the continuous help.
Attachments
x_travel_exceeded.JPG
axis_drive_type.JPG
axis_config.JPG
Tony Maninha
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Using Centroid Acorn Router "Pro" CNC12
Sword
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Re: Unable to setup homing

Post by Sword »

Until you get your X switch working, the easiest way (or one way) to have it ignore seeking for the X prox and just set home at it's current X location, would be to edit your cncm.hom file.

At the end of the file there will be this....

Code: Select all

;Perform Homing commands
M92/Z L1
M26/Z
;M91/X L1  ;comment out this line to not seek the switch and just set X home where it is. 
M26/X
M91/Y L1
M26/Y
Scott
guerra_cues
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Re: Unable to setup homing

Post by guerra_cues »

Sword wrote: Sun Dec 05, 2021 3:03 pm Until you get your X switch working, the easiest way (or one way) to have it ignore seeking for the X prox and just set home at it's current X location, would be to edit your cncm.hom file.

At the end of the file there will be this....

Code: Select all

;Perform Homing commands
M92/Z L1
M26/Z
;M91/X L1  ;comment out this line to not seek the switch and just set X home where it is. 
M26/X
M91/Y L1
M26/Y
Scott,
Set in the wizard for automatic and edit the file? I have it set for manual right now…
Tony Maninha
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Using Centroid Acorn Router "Pro" CNC12
Sword
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Re: Unable to setup homing

Post by Sword »

When you get your prox switches and inputs for them configured and all working, then you can do that (automatic), but if they're working, then you won't need to edit it.
Scott
guerra_cues
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Re: Unable to setup homing

Post by guerra_cues »

Sword wrote: Sun Dec 05, 2021 3:21 pm When you get your prox switches and inputs for them configured and all working, then you can do that (automatic), but if they're working, then you won't need to edit it.
Scott,

When I turn on the PC and open ACCS it requires me to set home every time even though I am already Home... Is that normal because I do not have my "real" limit switches configured and not set to automatic? Shouldn't ACCS retain my home settings?
Tony Maninha
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tblough
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Re: Unable to setup homing

Post by tblough »

You have to home the machine EVERY time you start the Acorn. Whether you do a simple home by moving the machine to marks and pressing cycle start, or if you set up home switches and do an automatic home by pressing cycle start.

Once the machine has been homed (and the DROs display numbers instead of dashes), then you can move to your saved WCS zero location.

When you power off the machine ALL position information is lost. You have to home the machine so Acorn has a starting reference to work from.
Cheers,

Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.
guerra_cues
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Re: Unable to setup homing

Post by guerra_cues »

tblough wrote: Mon Dec 06, 2021 9:22 am You have to home the machine EVERY time you start the Acorn. Whether you do a simple home by moving the machine to marks and pressing cycle start, or if you set up home switches and do an automatic home by pressing cycle start.

Once the machine has been homed (and the DROs display numbers instead of dashes), then you can move to your saved WCS zero location.
Thank you for the clarification Tom.
It’s quite a learning curve but with your guys help I have been able to get things going. Thanks again for taking the time to respond.
Tony Maninha
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Using Centroid Acorn Router "Pro" CNC12
tblough
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7804732B977B-0624192192
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Re: Unable to setup homing

Post by tblough »

Something else to think about. If you are doing simple homing where you move the machine to a position and set home, your WCS positions will not be repeatable. If you have located a fuxture and set a WCS for it previously, then that WCS will be out of position by as much as your positioning error for the home position.

The ONLY reliable (repeatable) homing is by using home switches AND some sort of home signal from the axis drive. With any other home method, you MUST re-zero your WCS each time you re-start the machine.
Cheers,

Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.
martyscncgarage
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Re: Unable to setup homing

Post by martyscncgarage »

What is ACCS? I don't understand what you are referring to.
Centroid software is CNC12. There is a version for Centroid Acorn.
If you have a switch on each axis, you need to set them up in your INPUTS.

Here is a video I made on setting up switches using the HOMEALL input (My HOMEALL is INPUT1. In the Wizard, INPUT configuration screen, click on HOMEALL and DRAG it to the input you are using):
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
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cnckeith
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Re: Unable to setup homing

Post by cnckeith »

thanks marty! excellent explanation! couldn't have done it better myself and nice job fitting the cnc12 screen in the shot with the machine!

(i would add...don't forget to assign "HomeAll" to an input in the input screen of the Wizard.)
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
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