Author Topic: Any Ideas On Whats Going On Here?  (Read 3333 times)

Offline Sbrem

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Re: Any Ideas On Whats Going On Here?
« Reply #15 on: January 02, 2014, 10:24:06 AM »
All of the above, and definitely look at getting a better light source...

Steve
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Offline DCSP John

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Re: Any Ideas On Whats Going On Here?
« Reply #16 on: January 02, 2014, 11:39:21 AM »
i think its in the design, meaning the multiple, wider  horizontal lines in your stencil are causing the squeegee to 'stutter or hiccup' after the squeegie makes a pass on the open areas..
Open areas are in parallel with the squeegee, causing the blade to 'jump', leading to  the  pre mature screen break down  immediately after the open areas.

At least thats my 2 cents. We have seen it happen here. Back off pressure, softer squeegee or more angle is a fix.

John


Offline Prosperi-Tees

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Re: Any Ideas On Whats Going On Here?
« Reply #17 on: January 02, 2014, 12:43:25 PM »
i think its in the design, meaning the multiple, wider  horizontal lines in your stencil are causing the squeegee to 'stutter or hiccup' after the squeegie makes a pass on the open areas..
Open areas are in parallel with the squeegee, causing the blade to 'jump', leading to  the  pre mature screen break down  immediately after the open areas.

At least thats my 2 cents. We have seen it happen here. Back off pressure, softer squeegee or more angle is a fix.

John
I think this is exactly it. I can hear the squeegee stutter when going over those lines, although it is not only in those horizontal lines but in other areas of the design with larger open areas.

Offline JBLUE

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Re: Any Ideas On Whats Going On Here?
« Reply #18 on: January 02, 2014, 09:16:37 PM »
John pretty much nailed it but you still have an issue with the emulsion as well. What mesh count is that for the black? The lower the count the more its going to skip.
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Offline Prosperi-Tees

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Re: Any Ideas On Whats Going On Here?
« Reply #19 on: January 02, 2014, 10:48:57 PM »
John pretty much nailed it but you still have an issue with the emulsion as well. What mesh count is that for the black? The lower the count the more its going to skip.
I went with a 160 on this one. My 180's are way too loose. And I was worried my 230's that I would have to double stroke which I really didn't want to do with 1500 pieces.