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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 752 views 0 times favorited 13 replies Add to Favorites Watch
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JesseTutt

811 posts in 858 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

View Greg..the Cajun Wood Artist's profile

Greg..the Cajun Wood Artist

5264 posts in 2056 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

-- Each step of every Wood Art project I design and build is considered my masterpiece… because I want the finished product to reflect the quality and creativeness of my work

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wseand

2603 posts in 1789 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

80 posts in 1425 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.

4488 posts in 1127 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.

-- http://thewoodknack.blogspot.com/

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knotscott

5601 posts in 2123 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

319 posts in 2176 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

View Picklehead's profile

Picklehead

642 posts in 677 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.

View jinkyjock's profile

jinkyjock

367 posts in 322 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

811 posts in 858 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

View wseand's profile

wseand

2603 posts in 1789 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

View PurpLev's profile

PurpLev

8476 posts in 2396 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

2980 posts in 1991 days


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

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

View Rick M.'s profile

Rick M.

4488 posts in 1127 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

-- http://thewoodknack.blogspot.com/

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