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7 1/4 inch blades on the bt3? I have quite a few laying around,(most new). And was thinking about trying them (using them up) Saving my good 10 inch blades for when I need them. Just trying to save a few bucks.
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It works okay, I've done it a few times.Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison -
You will get a smaller kerf an save a bit of wood.
Probably the cut won't be as nice...
Blade tip velocity and number of teeth or cuts per time will be less.
Loring in Katy, TX USA
If your only tool is a hammer, you tend to treat all problems as if they were nails.
BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questionsComment
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I have sometimes used a cheap 7" blade when ripping recaimed wood to save potentially wrecking one of my good blades.Jon
Phoenix AZ - It's a dry heat
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We all make mistakes and I should know I've made enough of them
techzibits.comComment
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You'll lose 34mm (1⅜") depth of cut, compared to the 10" blade.
RayDid I offend you? Click here.Comment
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Your blade guard won't protect as well and depending on the kerf of the blade, may not even work with the blade guard installed. Like most things, if using something that really wasn't designed into the machine, efficiency and end product quality may suffer as well as the safety concerns. If you are just looking to cut wood though, yep, it should work.LeeComment
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I will desent here. I use a Frued TK303 on mine a lot. Ultra thin kerf and give excellent finished cuts. Really good for use with miter sleds for picture frames.Don, aka Pappy,
Wise men talk because they have something to say,
Fools because they have to say something.
PlatoComment
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A 7-1/4" blade works great for sheet goods, which rarely exceed 3/4" in thickness. I use one primarily when I have a lot of MDF to cut: the smaller kerf really cuts down on the amount of dust produced.LarryComment
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Loring in Katy, TX USA
If your only tool is a hammer, you tend to treat all problems as if they were nails.
BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questionsComment
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Yep, I think it is important to note that even w/ a 7-1/4" blade installed, the BT3K will still give you a depth of cut almost as deep as many cabinet saws.
Although I will also mention that cutting more than 2" deep w/ a 10" blade is kinda scary to me. Perhaps just because I don't do it that often.Comment
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Several good statements in this thread. Thinner kerf on 7" blade will probably make you ditch the riving knife. The cut will be less safe. I would only consider such cut with either small stock like picture frames or with material that does not have hidden forces like sheet goods. Cutting MDF with very thin kerf actually makes sense as Larry said. Nobody likes the dust from MDF.Alex VComment
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I used a 60 tooth skil blade (~$14) to cut all of the laminate flooring in my sunroom. This was with my old BTS21 and it worked like a charm.Comment
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Most operations that I've used a 7 inch blade for didn't have the rip fence installed, so the purpose of the riving knife isn't a large factor. Usually a sled with a set degree for repeatable miters.Mike
Lakota's Dad
If at first you don't succeed, deny you were trying in the first place.Comment
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The former owner of my BT3K admitted to me. He used 2- 7 1/4" blades with a 1/2" spacer in between them to cut 1/2" strips in quicker time. Of course he used a ZCTP. Phil
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I've used 7 1/4" and 8" blades with no problems. Most dado blades are smaller diameter too.Comment
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