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DEK 265 Horizon fiducial drift in the Y

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Rob

#87925

DEK 265 Horizon fiducial drift in the Y | 2 May, 2022

I have a problem with DEK 265 Horizon. During camera being homed after checking the fiducials, the camera failed to home properly and crashed into the back of the machine in the Y direction.

I homed the camera in the Y and it appeared OK and I could not replicate the issue again. However, now when camera checks the fiducials, camera appears to slowly drifting in the Y direction until the fiducial can't be seen in the Y. If I home the camera in the Y under diagnostics is Ok for about another 10 to 15 boards.

Any suggestions to rectify this issue would be welcomed!

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DWL

#87929

DEK 265 Horizon fiducial drift in the Y | 3 May, 2022

I don't know anything about DEKs so while you wait for a more informed response, here are a few brain droppings...

Did something get knocked loose on the camera assembly? give everything a wiggle test and make sure it stays in place.

Is the encoder scratched or dirty?

Is something binding on what ever drives the camera i.e. linear platen, ball screw, belt, or what ever?

Is the motor failing? Can you zero the camera then exercise the motion for a few cycles then check the zero point?

Is it possible the PCB is drifting? I assume the Y is perpendicular to the conveyor rails so this would be more likely for X axis drift but I thought I'd ask.

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#87973

DEK 265 Horizon fiducial drift in the Y | 16 May, 2022

The camera crashing is usually a fault with the encoder on the Y motor assembly. someething to do with not finding a home pulse I think. Anyway, replace the motor/encoder and recalibrate and you should be good to go

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Rob

#87979

DEK 265 Horizon fiducial drift in the Y | 16 May, 2022

Thanks for the reply.

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