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screen printing => Screen Making => Topic started by: Croft on March 04, 2012, 07:28:34 PM
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Well I've had some Newman rollers for a while , I have stretched about five in the past with some success, But I had some time thursday/ fri last week to do some more. I had to clean and prep before stretch because they were used frames . I spent a while because i wanted them clean.
I have a couple of questions.
1- When stretched they were all flat to the surface, Tonight (2 days later) when I went to check tension and re tension about 1/3 were not flat anymore? is that typical. Just to let you know I have a new SNAP-ON torque wrench so I'm sure that was correct.
2- I am sceptical that the Newman yellow protector tape is going to stick? Should i have done the degrease first clean of the mesh before I put it on?. I have used 110 and 156 SEFAR white mesh.
3- I got a good 30 -40 newtons on all is that a good average? I had popped a few I think because of not soft enough corners. so going past 35 -40 was getting a little iffy.
Thanks for your time.
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Newman should always stay flat as long as they start out flat and the bolts are torqued to the right foot pounds.
As for popping mesh not softening the corners enough will get you every time.
Make sure to check the manufacturers suggested tension level on the mesh and don't go over that.
Newman yellow tape works great if you degrease the mesh on top of the rollers first then put the tape on.
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The reason you want to decrease the mesh first. Is because mesh manufacturers put lanolin on the mesh to keep it from sticking together.
So you want to get that off before you put the tape on.
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I'd suggest going to Newman/Stretch Devices site, and watch some videos
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We saw a jig/manual stretching gizmo at Vastex when we took their course. When we work with anything metal, we try to get it into a jig to weld, bend, cut, etc,, and find that has been a great way to keep items flat and square, or angled correctly. Might apply to Newman frames as well.
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Check out mooseman's third hand (other pics in later post in second page)
www.theshirtboard.com/index.php/topic,723.msg6207.html#msg6207 (http://www.theshirtboard.com/index.php/topic,723.msg6207.html#msg6207)
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We saw a jig/manual stretching gizmo at Vastex when we took their course. When we work with anything metal, we try to get it into a jig to weld, bend, cut, etc,, and find that has been a great way to keep items flat and square, or angled correctly. Might apply to Newman frames as well.
Actually I was at there site and the videos are pretty poor, there is the one from Ryonet with a guy stretching a square tube + 3 rollers that was helpful, and a few videos showing the stretch table . but no begining to end stretching technique from them.
I have there PDF instructions that are pretty good as well but they leave out the tricks or basic things like how long the locking strip should be etc.
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Doesn't RJennings have a decent video?
I know when I first started I saw a REALLY extensive video which spent a good bit of time talking about corner softening and all. I thought it was his.
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Check this out -This shows using panels, but the table works for both.
Using the Accelerator 2 - Square Bar Frame (http://www.youtube.com/watch?v=7GdhtZdy5d0#)