Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

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stepped stencils

Views: 1935

#71744

stepped stencils | 19 February, 2014

Are there any tricks to cleaning a stepped stencil while in use. There seems to always be paste left behind around the recesses of the stencil. We have tried many different wipe combinations and don't seem to be having much luck with it. The machine is a new MPM Momentum, and the way it cleans with the paper roll and solvent I just can't see how it would ever get all the paste out of the stencil. Is there any other attachments or setup to allow the stencil wiper to clean up into the stepped ridges of the stencil. Thanks,

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#71783

stepped stencils | 27 February, 2014

I dont know if this helps but we do a 10-board-cleaning after 10 prints or cycles we stop and with lint free towels with alcohol and a air gun we clean it, you should clean one side then the other.

Hope it helps

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#71785

stepped stencils | 27 February, 2014

I would like to speak with you.

In many cases with our new COBRA 3.0....we have been able to help eliminate Steps 1-3 mils....would this be of support to you?

Pls email me jv@interlatin.com.mx

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#71830

stepped stencils | 13 March, 2014

Why don't you try to make your step on the squeegee side? that way you shouldn't have any issues with cleaning.

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