Error Recovery

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18 Jun 2020 07:16 - 18 Jun 2020 07:17 #171984 by phillc54
Error Recovery was created by phillc54
I saw this video from Clive and thought that the must be a better option for error recovery to minimize divots on a cut recovery.

I am toying with this idea, basically the Paused Motion section in the GUI would be replaced with a single button labelled Cut Recovery that only shows when paused.
This button when pressed will bring up a recovery dialog as shown.
Then the operater can move in reverse or forward to an appropriate position on the cut, then use the X/Y buttons to move the torch to the waste side of the cut.
The Z button is just a convenience to allow the torch to be close to the material to make sighting a bit easier.
Each button press would offset by one kerf width as displayed in the cut parameters.
When a satisfactory starting point is reached then there are two options:
  • Cancel in which case the the offsets are cleared and the dialog box closes.
  • Resume Cut which will move X to the original height if required then start a cut at the current position then the torch will move to the the cut line at the position where the offsets were applied then continue on with the cut.

I am not 100% sure if this is feasible or even if it is a good idea so I thought I would put it out there for any comments.

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Last edit: 18 Jun 2020 07:17 by phillc54.

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18 Jun 2020 07:41 #171985 by rodw
Replied by rodw on topic Error Recovery
I've never had any issues recovering.
I'm not sure its a good example to base enhancements off when Clive remade his holder after that cut.

The warpage was not really a lot and certainly not enough to trigger a stoppage on my machine. The THC should have managed it.

The most issues I've had with stoppages has been on probing and hopefully you have tamed the kangaroo.

It will be interesting to hear what others think.

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18 Jun 2020 07:45 #171986 by phillc54
Replied by phillc54 on topic Error Recovery
Don't you end up with a divot where the restart happpens.

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18 Jun 2020 08:06 #171987 by tommylight
Replied by tommylight on topic Error Recovery

Don't you end up with a divot where the restart happpens.

Yup, on something that is never gona be looked at from near enough to actually see it.

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18 Jun 2020 08:21 #171988 by Clive S
Replied by Clive S on topic Error Recovery

$Rod The warpage was not really a lot and certainly not enough to trigger a stoppage on my machine. The THC should have managed it.


It was the float switch that triggered the pause. I think with your plasma cutter you can cut at a higher height than me.

Re the divert, It is hardly noticeable . I have now change the torch mount to alli as I noticed the plastic one was not up for the job in keeping the torch perfectly in alignment, in fact it broke.

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22 Jun 2020 11:08 #172325 by snowgoer540
Replied by snowgoer540 on topic Error Recovery

I saw this video from Clive and thought that the must be a better option for error recovery to minimize divots on a cut recovery.

I am toying with this idea, basically the Paused Motion section in the GUI would be replaced with a single button labelled Cut Recovery that only shows when paused.
This button when pressed will bring up a recovery dialog as shown.
Then the operater can move in reverse or forward to an appropriate position on the cut, then use the X/Y buttons to move the torch to the waste side of the cut.
The Z button is just a convenience to allow the torch to be close to the material to make sighting a bit easier.
Each button press would offset by one kerf width as displayed in the cut parameters.
When a satisfactory starting point is reached then there are two options:
  • Cancel in which case the the offsets are cleared and the dialog box closes.
  • Resume Cut which will move X to the original height if required then start a cut at the current position then the torch will move to the the cut line at the position where the offsets were applied then continue on with the cut.

I am not 100% sure if this is feasible or even if it is a good idea so I thought I would put it out there for any comments.


So I like the premise of the idea, but I'm a bit fuzzy on the execution. A few questions:

1. Will the jog keys on the keyboard work, or will the user HAVE to use the buttons in the dialog box?
2. I'm confused as to why it's offset by one kerf width? If you move into the waste area, does it matter that it's offset? I'm not following here.
3. So, the idea is that I move the torch to an area where there's waste material, and when I press go, it's going to take the shortest path back to where it stopped when it paused? I'm wondering if that will still leave a divot? Any chance of a flame out if it crosses the kerf? I think leaving a little bump of material may be better than a divot, at least it's usually easier to grind those off.
4. This sounds a bit like something Tormach does for when the operator stops the program. It highlights last executed line. Then you can right click on that line and choose from a slew of options. See the attached pic from their 1100MX manual below. Just reminded me of that feature, and thought I'd share.



At any rate, it seems useful off the cuff. I'm all about anything that makes the end user's experience better.
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22 Jun 2020 12:02 #172327 by phillc54
Replied by phillc54 on topic Error Recovery

1. Will the jog keys on the keyboard work, or will the user HAVE to use the buttons in the dialog box?

You would have to use the dialog box buttons. It may be possible to modify the existing buttons in Axis but I don't think it would be possible in Gmoccapy. I like to keep both the same if possible as it is a PITA supporting two GUIs.


2. I'm confused as to why it's offset by one kerf width? If you move into the waste area, does it matter that it's offset? I'm not following here.

Well you need to set the amount you offset so I figured that would be a good starting point plus there is no units specific code. If you want to move X three kerf widths positive you press X+ three times.


3. So, the idea is that I move the torch to an area where there's waste material, and when I press go, it's going to take the shortest path back to where it stopped when it paused?

Yes, it probes, starts the cut and moves in a straight line to were the offset started from then continues the original cut.


I'm wondering if that will still leave a divot?

The idea is that with some practice you could find the place where you don't, you can use the Fwd/Rev of Paused motion to set the start point of the cut then set the offset you want.


Any chance of a flame out if it crosses the kerf?

I don't know, my machine is in permanent CPA mode so I don't see that.


I think leaving a little bump of material may be better than a divot, at least it's usually easier to grind those off.

I agree.

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22 Jun 2020 12:20 #172331 by snowgoer540
Replied by snowgoer540 on topic Error Recovery

Well you need to set the amount you offset so I figured that would be a good starting point plus there is no units specific code. If you want to move X three kerf widths positive you press X+ three times.

Ah, ok that make sense. I wasnt tracking that each button click moved you a predetermined amount. That sounds better to me, and makes my angst over not being able to use the keyboard lessen.

I don't know, my machine is in permanent CPA mode so I don't see that.

Holy crap! Why didn't I ever think of that?! This is brilliant lol. Consider mine permanently in CPA now too.

Well, you know I'd be happy to test it and break it for you :)

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22 Jun 2020 12:29 #172333 by phillc54
Replied by phillc54 on topic Error Recovery

Holy crap! Why didn't I ever think of that?! This is brilliant lol. Consider mine permanently in CPA now too.

Mine is a Powermax 30XP so there is only one mode.


Well, you know I'd be happy to test it and break it for you :)

I thought I would do something different for a change and give this one a test myself. :ohmy:

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23 Jun 2020 11:39 #172464 by snowgoer540
Replied by snowgoer540 on topic Error Recovery

I thought I would do something different for a change and give this one a test myself. :ohmy:


Well... where's the fun in that?! :laugh:

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