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DEK 265gsx vision calibration

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#61487

DEK 265gsx vision calibration | 26 March, 2010

Can someone explain to me what I'm supposed to do after I have done the vision offset calibration procedure? The manual tells me to put solder paste down on all 25 holes of the stencil. After this the board drops down and the machine scans each fiducial on the board, but it always fails because the paste is so far off center. The manual tells me to teach the fiducial again if it fails but I cant do that because the fids are not perfect circles anymore. They have paste on the corners and it does not resemble a circle anymore. Am I supposed to reteach the fids or the paste circles? Help??

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#61488

DEK 265gsx vision calibration | 26 March, 2010

Just a guess:

Are you printing your fiducials on the fiducial side of the board?

Fidicial Side is for Vision Calibration, Bare Copper Side is for Offset Calibration (Step 5 of procedure says "copper side uppermost"). After printing 25 fiducials on bare copper side, board fiducial must be retaught as ~1.0mm circle in light background (vs. ~2.0mm circle on Dark background from vision Calibration).

Let me know if I have assessed your situation incorrectly, or how I can further assist.

dh1@dekhead.com

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#61490

DEK 265gsx vision calibration | 27 March, 2010

Well I'll be damned! I was printing this on the fiducial side. Silly me. I should have read the manual closer. Thanks for the help.

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#61491

DEK 265gsx vision calibration | 27 March, 2010

You were doing it right... for a 288.

3rd or 4th time in the last year or so I've had somebody do that.

Glad I could help.

http://www.dekhead.com

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#61543

DEK 265gsx vision calibration | 1 April, 2010

Since my last post, I have successfully calibrated my printer. Now I have noticed that after a print, the machine decides to check for fiducials again. A post print fiducial check. Do you know how to disable this? It is slowing down my process considerably. Thanks again for all your help!

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#61544

DEK 265gsx vision calibration | 1 April, 2010

Sounds like SPC data collection is turned on with post print alignment inspection. Needs to be changed to "NONE"

http://www.dekhead.com

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#61550

DEK 265gsx vision calibration | 3 April, 2010

Thanks again for your help. I never would have guessed to check the SPC data settings because we never use it. Thanks so much!

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