[Homing] X axis not moving but homing process is completing.

[Brendan]

I'll get a video of it next time I'm down to the machine, posting this on the off chance that someone has seen this and knows exactly whats wrong. 

I have a carve king, also I'm pretty new at this so I think I'm right when I say the Y axis is forward and back, and the X axis is side to side. 

When I run "Home Machine" from the Common Actions (Which I've done before without issue) the z axis runs normally but instead of both the Y & X axises moving together the X axis moves ~ 1mm and stops, and the Y axis completes it the process.

UGS thinks that the process has completed and sets values such as: 

X -49.9 & -4.00
Y 166.3 & -4.00
Z 5.4 & -4

It is important to note that I've been cutting perfectly fine, and jogging works no problem. I haven't used the Homing other than to move the machine out of the way when a cut is done. I'm looking to start using the machine coordinate system for 2 sided cuts. 
 
I will get a video to update this thread if no one has a simple answer. 

[Derek the Admin]

It sounds like the X switch is currently triggered. If you turn on verbose output in UGS does it show “Pn:X” at the end of the stream of text in the console window?

If so, it could be caused by a couple of things. The most common occurrence is that you have the wire on the NC terminal on the switch instead of NO. That, or the connectors coming off the terminals are touching in some way.

[Brendan]

I should have mentioned that I checked that already. 

I had issues originally when I set the homing up where I had X and Y reversed and thats how I solved it. So When verbose mode is active and I manually click the sensor the x pin appears, and when I stop it goes away. 

I'll go make that video. 

[Bruce]

Post the GRBL settings you have for your machine too.

[Derek the Admin]

Gotcha. Does it do that on every homing cycle or just intermittently?

[Brendan]

This happens every time.

photos.app.goo.gl/WWGsU1qTRJG6yovCA

I'll get those settings too. Is there a quick copy paste debug thing or are screen shots the best?

[Bruce]

Looks like the X axis has no signal to move during homing.

Use the $$ command in the command line and then copy paste the list to a post. 

[Derek the Admin]

I’ll check out the video when I get to a decent connection at the office tomorrow. You should be able to copy the settings from the console in UGS, though I know certain versions won’t let you copy from the console window.

[Brendan]

Sorry it took so long, I've not been cutting recently. 

Here is that printout. It there a way to hit reset somewhere? 

See attached for the settings. I couldn't copy paste. 
 

[Brendan]

I figured out how to copy paste it. I'm also on a different computer and it's still not working - but I assume these are firmware settings on the board not in the program.

$0 10 (Step pulse time, microseconds)
$1 255 (Step idle delay, milliseconds)
$2 0 (Step pulse invert, mask)
$3 0 (Step direction invert, mask)
$4 0 (Invert step enable pin, boolean)
$5 0 (Invert limit pins, boolean)
$6 0 (Invert probe pin, boolean)
$10 1 (Status report options, mask)
$11 0.010 (Junction deviation, millimeters)
$12 0.002 (Arc tolerance, millimeters)
$13 0 (Report in inches, boolean)
$20 0 (Soft limits enable, boolean)
$21 0 (Hard limits enable, boolean)
$22 1 (Homing cycle enable, boolean)
$23 0 (Homing direction invert, mask)
$24 35.000 (Homing locate feed rate, mm/min)
$25 1200.000 (Homing search seek rate, mm/min)
$26 94 (Homing switch debounce delay, milliseconds)
$27 4.000 (Homing switch pull-off distance, millimeters)
$30 12000 (Maximum spindle speed, RPM)
$31 0 (Minimum spindle speed, RPM)
$32 0 (Laser-mode enable, boolean)
$100 200.000 (X-axis travel resolution, step/mm)
$101 200.000 (Y-axis travel resolution, step/mm)
$102 200.000 (Z-axis travel resolution, step/mm)
$110 3500.000 (X-axis maximum rate, mm/min)
$111 4400.000 (Y-axis maximum rate, mm/min)
$112 3000.000 (Z-axis maximum rate, mm/min)
$120 240.000 (X-axis acceleration, mm/sec^2)
$121 240.000 (Y-axis acceleration, mm/sec^2)
$122 240.000 (Z-axis acceleration, mm/sec^2)
$130 432.000 (X-axis maximum travel, millimeters)
$131 432.000 (Y-axis maximum travel, millimeters)
$132 95.000 (Z-axis maximum travel, millimeters)

[Derek the Admin]

Settings look good. I went back and watched the vid. What happens if you type $H then enter in the command line instead of using a common actions button?

I'd also like to try just reflashing the firmware in case something is up there because it looks like the hardware is fine based on the responses it gives when you touch the switch. You can use XLoader that is linked at www.millrightcnc.com/resources to load the attached hex file.

Grbl 1p1 for Carve King Homing and No Homing.hex (81.7 KB)

[Brendan]

Since it doesn't give me verbose output while homing - I wondered if the issue is interference?  

Got the idea from here github.com/grbl/grbl/issues/1060

I literally pulled the homing wire out of the second chain a little further and it's working.

Thanks to everyone for help on this, now I'm off to setup the G54 coordinate system.

[Derek the Admin]

Let us know if that keeps working for you please.

[Brendan]

Dec 9, 2018 3:36:48 GMT Derek the Admin said:

Let us know if that keeps working for you please.

I had to completely remove it from the second chain. 

I have the laser installed also, so there it lots of wires in that second chain. So far so good. Going to laser things today, so we'll see.