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saw blade with a _minimum_ depth of cut?

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Forum topic by JesseTutt posted 02-04-2014 04:54 AM 687 views 0 times favorited 13 replies Add to Favorites Watch
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JesseTutt

804 posts in 764 days


02-04-2014 04:54 AM

Topic tags/keywords: saw blade

I never heard of a saw blade having a minimum depth of cut until I read the latest e-mail from Woodworker’s Supply. They list a series of freud saw blades and for each one they list a minimum depth of cut when crosscutting and a minimum depth of cut when ripping.

Do saw blades (10 inch) really have a minimum depth of cut?
What happens if you cut a piece that is less than the minimum depth?

Thanks, Jesse

-- Jesse, Saint Louis, Missouri


13 replies so far

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Greg..the Cajun Box Sculptor

5090 posts in 1962 days


#1 posted 02-04-2014 04:58 AM

I would imagine a minimum depth of cut is when you lower the blade below the top of the table

-- If retiring is having the time to be able to do what you enjoy then I have always been retired.

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wseand

2248 posts in 1696 days


#2 posted 02-04-2014 05:20 AM

I would assume it is a manufacturers recommendation, they consider it unsafe or not as accurate.

-- Bill - "Freedom flies in your heart like an Eagle" Audie Murphy

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Tenfingers58

78 posts in 1332 days


#3 posted 02-04-2014 05:45 AM

Jesse, If Woodworker Supply said it, why not ask them? Get the info “straight from the horses mouth” and let us know what you learned.

I’ve never heard of a minimum depth of cut before.

How do I get on their email list?

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Rick M.

3961 posts in 1034 days


#4 posted 02-04-2014 08:57 AM

Freud does make recommendations based on wood thickness but I’ve never heard it called a minimum depth of cut.

-- |Statistics show that 100% of people bitten by a snake were close to it.|

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knotscott

5455 posts in 2029 days


#5 posted 02-04-2014 10:00 AM

Wonder if they meant ”maximum” depth of cut?

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

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dusty2

315 posts in 2083 days


#6 posted 02-04-2014 11:33 AM

No, I believe they meant “minimum” because they also specify “maximum”.

Reading between the lines (on the Freud spec sheets), I conclude that they are specifying the depth of cut that must be maintained to avoid adversely impacting the quality of cut edge. This would be dictated by the geometry of the cutting edge (the carbide) of the blade.

In mill work, depth of cut is an important set up factor.

-- Making Sawdust Safely

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Picklehead

576 posts in 583 days


#7 posted 02-04-2014 11:51 AM

I can see the ads now: “The Minfinity blade series has the smallest minimum depth of cut in it’s class. To Minfinity, and beyond!”

-- You've got to be smarter than the tree.

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jinkyjock

289 posts in 228 days


#8 posted 02-04-2014 12:24 PM

In my experience I was always taught to show 5 teeth above the height of the stock being cut for most efficient use of saw-blade. Ergo larger saw blades being used on thinner stock is inefficient if not used appropriately as you are impacting on tooth rake. Could this be something they have in mind.

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JesseTutt

804 posts in 764 days


#9 posted 02-04-2014 02:13 PM

I pulled this off the e-mail advertising the Freud LU84 conbination sawblade:
• 3/4” minimum depth of cut when crosscutting; 3-1/2” maximum.
• 1/4” minimum depth of cut when ripping; 1-1/2” maximum.
• Large gullets in front of flat top rakers allow for fast ripping and easy chip removal.

I think I will e-mail Woodworker’s Supply and ask them.

Thanks for all the replies.

-- Jesse, Saint Louis, Missouri

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wseand

2248 posts in 1696 days


#10 posted 02-04-2014 03:57 PM

If you go to Freud’s web site all their blades come with a Min and Max cut depth. I would ask Freud.

-- Bill - "Freedom flies in your heart like an Eagle" Audie Murphy

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PurpLev

8476 posts in 2302 days


#11 posted 02-04-2014 04:01 PM

it is most likely the minimum depth of cut to make use of the gullets in the blade to remove chips and cut-materials. otherwise if you cut any lower, the blade gullet geometry won’t be able to efficiently remove waste and could result in burning, bogging, or otherwise poor cut quality.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

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MrRon

2833 posts in 1897 days


#12 posted 02-04-2014 05:24 PM

The minimum depth cut sounds like a safety recommendation to counter kickback.

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Rick M.

3961 posts in 1034 days


#13 posted 02-04-2014 05:30 PM

What is there to ask? Look at this chart, each blade is designed for an optimum thickness. No one will arrest you if you cut something thicker. You’re making simple into hard.

http://www.freudtools.com/images/SB-Sel-3000x2164.jpg

-- |Statistics show that 100% of people bitten by a snake were close to it.|

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