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Gang Ripsaw Adjustment

2/25/15       
Larry

Website: http://www.superiorcabinetryandmillwork.com

Hi, I've got a 1995 model Newman Whitney KF-24 gang ripsaw. I recently had all three rubber pinch rollers recovered. And, my press plate is fairly new. As far as I know, I've got everything set up right. Sometimes when I straight line rip or gang rip a board, it will have a slight curve after its ripped. And, sometimes the board will come out straight as an arrow. We recently gang ripped some yellow pine boards that were about 12" wide and some of them came out with a slight curve. The boards were about 12 or 14 feet long. If the boards that I'm ripping don't already have a straight edge on them, I use my rip fence as a starting point. After I feel the first set of pinch rollers grab the board, I quickly move the fence out of the way. That way the saw can pull the board through in a linear fashion. If you guys have any suggestions as to how to make the cuts straight as an arrow every time, I would definitely appreciate hearing back from you. Thanks in advance.
Larry

2/26/15       #2: Gang Ripsaw Adjustment ...
JR Rutter Member

Can you get a single laser for the right side blade and use that to line up the cut? Even if it was not perfectly aligned, it would give you a good reference and could stay in place since that blade position should stay the same regardless of setup.

2/26/15       #3: Gang Ripsaw Adjustment ...
Larry

Website: http://www.superiorcabinetryandmillwork.com

Yes, I do want to get a laser for the right blade. I'm just not sure if there is some other adjustment that I'm needing to make to make sure that the boards get pulled through in a totally straight linear fashion. I'm just not sure why some boards come out totally straight and some have a slight curve to them. Even wide boards.

2/26/15       #4: Gang Ripsaw Adjustment ...
Vic

Website: http://huwoodtrim.com

SLR & Gang rip are two different things.

My saw will gang rip straight, but will not SLR. I have a different saw for it, a SLR.

When gang ripping, the multi blades should do a good job of keeping the rip striaght. When SLR'ing, then its all in the chain, race and rollers.

I thought when I got my gang rip, I could do without my SLR, but I was wrong.

2/26/15       #5: Gang Ripsaw Adjustment ...
JR Rutter Member

Larry, maybe it is just tension in the planks? We get that on our SLR on certain boards.

2/26/15       #6: Gang Ripsaw Adjustment ...
Larry

Website: http://www.superiorcabinetryandmillwork.com

Thanks JR. That's what I have been wondering about. I was just thinking that the 12" wide planks yellow pine planks that we recently ripped would not have moved because of tension after ripping since they were so wide. I only sawed app. 3/4" off of each edge.

3/8/15       #7: Gang Ripsaw Adjustment ...
David Waldmann

Website: http://vermonthardwoods.com

A rubber roller feed system just will not be able to do a perfect job every time. There is too much give in the material, so that if there are any other forces introduced the board will wander.

I agree that a laser will help, since it will take out the need for using the fence. I can't see starting with the fence working well, especially with a rubber roller system.

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