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Paste Stencil Mesh tension tool calibration

Views: 3709

#87402

Paste Stencil Mesh tension tool calibration | 9 December, 2021

Hi all, I have a GRUNIG G-CHECK tension measurement tool, I need to prepare a calibration report internally.

https://graphcom.gr/product.php?lang=en&id=128

Measuring range between 7 and 50 N/cm

Thanks for sharing any useful calibration instruction or suppliers coordinates in Europe region.

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#87404

Paste Stencil Mesh tension tool calibration | 9 December, 2021

People that measure, say 4 symmetrical points() and one in the center to get the full picture. I personally see it as a NO value added activity. If stencil changes performance - replace it.

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#87406

Paste Stencil Mesh tension tool calibration | 9 December, 2021

Thanks, I wish all SMT quality people have the same thinking.

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DWL

#87408

Paste Stencil Mesh tension tool calibration | 9 December, 2021

Totally agree with Evtimov. Let the SPI be the judge, as long as your getting good prints, your stencil is fine.

I had a colleague cut the mesh on one side of a stencil and it still printed fine. This was proof to management that measuring tension was a waste of time.

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Fly

#87411

Paste Stencil Mesh tension tool calibration | 10 December, 2021

SMT stencil standard: measure the four corners and the middle, target value is 26N/CM or more

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#87412

Paste Stencil Mesh tension tool calibration | 10 December, 2021

Thanks for reply, in fact, my question is how to calibrate the tool itself, it has some load spring and a gauge moving according to the tension of the mesh. I was wondering if I can make 2 different tension sets to have different comparing values, the aim is to check if the tool is still giving right reading or there are some errors.

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#87427

Paste Stencil Mesh tension tool calibration | 20 December, 2021

For tool accuracy, you use calibration labs.

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