Z question

[joel silvestre]

Hi,

first many thanks for this great software and all that work!

if I have understand correctly board Z value must be set in the Job Boards Z cell and Feeders Z value in Feeders Configuration Pick Location Z cell?

In this case during the fiducial checking the nozzle goes down, up, down again and then the fiducial seeking moves are made nozzle down.

Also positioning the camera at feeders pick location moves the nozzle down and that's look quite dangerous, anything can be at this place...

Do I miss something?

Joël

[Jason von Nieda]

Hi Joel, please see https://github.com/openpnp/openpnp/wiki/FAQ#my-nozzle-moves-in-z-when-the-camera-is-moved

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[jdlv]

Thank you Jason, that's much better now!

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[ma...@makr.zone]

Hi Jason

On Wednesday, July 11, 2018 at 7:29:43 PM UTC+2, Jason von Nieda wrote:

Hi Joel, please see https://github.com/openpnp/openpnp/wiki/FAQ#my-nozzle-moves-in-z-when-the-camera-is-moved

 

as this keeps popping up again and again (including myself stepping into that one), couldn't proper Axis Mapping just be made the default for Z and C?

This seems feasible with the new human-readable/deterministic "N*" nozzle ids (vs. the old UUIDs). Also I tried to imagine a machine, where this axis mapping would not apply and that is still supported by the OpenPNP model and I can't. Even if there is such a machine: if only those few machine owners need to adjust their machine.xml, much is gained for the rest of us.

Or am I missing something?

_Mark

[Jason von Nieda]

Yep, I think this would be a good idea. The defaults are set up in GcodeDriver.createDefaults, and we have access to the Machine object, so we can just iterate through the heads and nozzles and set the IDs. 

Jason

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[Mark]

Yeah but wouldn’t the generic “N*” wildcard be better? So when they add nozzles later, they would still match?

 

_Mark

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[ma...@makr.zone]

Ah I see, this isn't a real wildcard matchup:

    public Axis getAxis(HeadMountable hm, Axis.Type type) {
        for (Axis axis : axes) {
            if (axis.getType() == type && (axis.getHeadMountableIds().contains("*")
                    || axis.getHeadMountableIds().contains(hm.getId()))) {
                return axis;
            }
        }
        return null;
    }    
https://github.com/openpnp/openpnp/blob/0bfe717a8a0bf8fd34b88edba95f314c72cddb7a/src/main/java/org/openpnp/machine/reference/driver/GcodeDriver.java#L387

That would have to be added...

_Mark

[Jason von Nieda]

Hi Mark,

Yep, you found it :) 

Easy enough to make that a more useful wildcard, or probably just use a regex to make it even more flexible.

I've filed an issue for this: https://github.com/openpnp/openpnp/issues/752

Jason

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[Jason von Nieda]

This is fixed now: https://github.com/openpnp/openpnp/issues/752

I just made it to so that the default is the current list of Nozzle IDs. It's a bit of a cheat, but I think it will cover most cases and we can revisit if people still run into problems.

Thanks,

Jason

On Thursday, July 12, 2018 at 11:34:44 PM UTC-5, Jason von Nieda wrote:

Hi Mark,

Yep, you found it :) 

Easy enough to make that a more useful wildcard, or probably just use a regex to make it even more flexible.

I've filed an issue for this: https://github.com/openpnp/openpnp/issues/752

Jason

On Thu, Jul 12, 2018 at 11:15 AM ma...@makr.zone <ma...@makr.zone> wrote:

Ah I see, this isn't a real wildcard matchup:

    public Axis getAxis(HeadMountable hm, Axis.Type type) {
        for (Axis axis : axes) {
            if (axis.getType() == type && (axis.getHeadMountableIds().contains("*")
                    || axis.getHeadMountableIds().contains(hm.getId()))) {
                return axis;
            }
        }
        return null;
    }    
https://github.com/openpnp/openpnp/blob/0bfe717a8a0bf8fd34b88edba95f314c72cddb7a/src/main/java/org/openpnp/machine/reference/driver/GcodeDriver.java#L387

That would have to be added...

_Mark

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[Mark]

> This is fixed now: https://github.com/openpnp/openpnp/issues/752

 

Great :)