Author Topic: Automatic printing.  (Read 2882 times)

Offline mk162

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Re: Automatic printing.
« Reply #15 on: March 09, 2014, 11:25:45 PM »
i would use either the gallon paint stirrers for thin fleece or for the thicker fleece I would use the 5-gallon stirrers from home depot.  works wonders....and they are free.


Offline inkman996

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Re: Automatic printing.
« Reply #16 on: March 10, 2014, 10:22:04 AM »
I think you will regret lowering your platens right now. It sounds like your current OC is correct for T-shirts. If that is so then you should leave everything the way it is. Just use shims under the screens for thicker material, yes a pain right now to reset the job but it will be worth it. If you  lower your OC right now to accomadate the fleece then you will have to raise the OC again once you go back to tees.

Your screens are not to tight, the argument presented that your choppers can not handle the higher tension is false because higher tension requires less squeegee pressure because you will use less OC.

From the sounds of your problems it seems obvious you have not enough or zero OC on fleece and also it sounds like way to much squeegee pressure. Get some OC off the fleece then start playing around with the squeegee pressure till you get desired results.
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Offline Printficient

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Re: Automatic printing.
« Reply #17 on: March 10, 2014, 10:36:40 AM »
Your screens are not to tight, the argument presented that your choppers can not handle the higher tension is false because higher tension requires less squeegee pressure because you will use less OC.
Sorry Mike but that statement does not make sense.  Regardless of the distance of deflection the initial force is greater the tighter the deflected material is.  When you check tension on a roller frame you have to push harder on a 50 ncm frame than a 15 ncm to deflect the mesh.  Simple physics.
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Offline inkman996

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Re: Automatic printing.
« Reply #18 on: March 10, 2014, 11:50:56 AM »
That is theory and not practical in the real world. I use some high tension screens and some very low and I always have to adjust the air pressure to accommodate either or. The initial deflection of the mesh is greater the higher the mesh tension but what really is relevant is how far you have to deflect that mesh. If it is to great a distance then sure some presses may struggle with this but if you have the correct OC the initial pressure needed is minimal.
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Offline sben763

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Re: Automatic printing.
« Reply #19 on: March 11, 2014, 11:11:52 PM »
Thanks for all the input. I have tried some suggestions.  The angles on the squeegee look like too much angle but I cant stand them up any more without lowering the screen clamps. I think tomorrow I am going to lower platen as I will have to do that anyway if I lower the screen clamps.  I am taking all the squeegees to my other workshop and sharpen in the morning  I compared these to my manual squeegees and they are dull.  So that maybe part of why I have to use so much pressure to get it to clear the screens.  Any other input or suggestions are greatly appreciated