Knew Concepts Fret Saw Tension

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Forum topic by Jeff_in_LSMO posted 02-01-2016 04:04 PM 758 views 0 times favorited 9 replies Add to Favorites Watch
View Jeff_in_LSMO's profile


352 posts in 2544 days

02-01-2016 04:04 PM

is there a guideline or rule-of-thumb for fret saw blade tension?

I fell like I’m getting it about as tight as I dare, but the blade still flexes quite a bit. I’m not pushing hard or anything.

9 replies so far

View stefang's profile


16144 posts in 3538 days

#1 posted 02-01-2016 06:51 PM

When you get a high pitched ‘pling’ it is just about right. Don’t be afraid to lose a couple of blades until you get it right. All will go well after that.

-- Mike, an American living in Norway.

View VadimIzoita's profile


3 posts in 1110 days

#2 posted 02-01-2016 07:00 PM

Hi stefang,

Do you have a video or link showing a sample of high pitched ‘pling’? I’m kinda afraid of losing some blades.


View theoldfart's profile


10170 posts in 2655 days

#3 posted 02-01-2016 07:27 PM

Jeff, you said “I’m not pushing hard”. Try reversing the blade to cut on the pull stroke.

-- "With every tool obtained, there is another that is needed" DonW ( Kevin )

View James Wright's profile

James Wright

331 posts in 1067 days

#4 posted 02-01-2016 08:56 PM

I went through a package or two before I finally got it right. now I make it far tighter then I ever raided before. the blades are cheap and experience is one of the best teachers.

-- James Wright, Rockford IL,

View sawdust703's profile


270 posts in 1624 days

#5 posted 02-01-2016 10:30 PM

To be frank about it, every scroller is going to give you a different answer, basically in the same vocabulary. How you perceive it is up to you. When doing fret work, there are several variables involved. It’s not just about blade tension. My first question to you would be what are you using for material? If you’re cutting in 1/4” material, you have a learning session in itself. First, make sure your saw table is level. Before you put any material to the blade, what type of blade are you using? Your blade should not move over an 1/8” side to side. If you try to over tighten, you’ll just break blades. Once you begin to cut, your tension will need to be readjusted. Your blade will “stretch” as you use it. Start in the very center of the project, & work out. This gives your project support as you work out. Blade speed. The thinner the material, the slower your blade speed. Reasoning: destruction. As far as whether or not you’re pushing to hard, look at your blade. If it’s bowing, yes, you are forcing the work piece. Just ease up, & let the BLADE DO THE WORK.:) Your hands & arms will thank you, & you’ll use ALOT less blades. Fretwork takes time, patience, focus, & care of the work. If you go at it a little at a time, it’s easier to learn. Keep practicing! My apologies for the length of the explanation. Enjoy the day.

-- Sawdust703

View Douglas's profile


424 posts in 2764 days

#6 posted 02-02-2016 01:23 AM

Sawdust703 has it right. I use that saw, and I have the tension pretty tight, but I could flex it if I pushed/pulled it wrong. I also set my blade to cut on the pull stroke.

-- Douglas in Chicago -

View Jeff_in_LSMO's profile


352 posts in 2544 days

#7 posted 02-02-2016 02:26 PM

everyone, thank you for the input. as i read through you comments i think i may just be using the wrong saw. I was using it for hogging out dovetails. Probably more of a coping saw application.

View JayT's profile


5961 posts in 2415 days

#8 posted 02-02-2016 03:22 PM

everyone, thank you for the input. as i read through you comments i think i may just be using the wrong saw. I was using it for hogging out dovetails. Probably more of a coping saw application.

- JeffinLSMO

That’s one of things it should excel at. There are quite a few people that use the Knew Concepts for hogging out dovetails. David Barron even shows it in his Dovetails Made Easy video.

I’m wanting to get one for just that purpose.

-- In matters of style, swim with the current; in matters of principle, stand like a rock. Thomas Jefferson

View bonesbr549's profile


1576 posts in 3271 days

#9 posted 02-02-2016 06:24 PM

I’m with JayT, thats why I bought mine. I too had to find the right tension, and you will too. Love that saw.

-- Sooner or later Liberals run out of other people's money.

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