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devonwoody

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Put a different blade to my new tablesaw yesterday, the one supplied was a 27 tooth ripping blade. The manual calls their 38 tooth a standard blade. Why the machine does not therefore come with a standard blade gave me some thoughts.

The new blade of a different manufacturer to my saw model which has 42 teeth however does not produce a crosscut any better than original!

I do have another blade with 80 teeth unused which was supplied as a spare with a purchase some years ago from Axminster for their AWS10 mitre saw.

This blade is a 254mmx2.8 x 30 x80Z the kerf cut is therefore 0.1mm greater than my riving knife!

I would not obviously use this blade on any ripping operations but would like to use its potential for fine crosscutting work such as picture frames etc. Seeing that a fence is not involved the riving knife problems should not in my opinion present any operating problems. Am I correct?

Also being supplied with the mitre saw, does the tooth pattern present dangerous use?
 

jasonB

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Was the 42T blade sharp?

I find a sharp blade with less teeth gives just a good a cut as one with more teeth with less scorching in hardwood. I tend to keep a 24T (200 dia) blade for general work, 48T with high top bevel for Melamine, 60T for veneered boards & a 18T flat top for ripping.

Your chop saw blade may have negative rake which will possibly raise the risk of kick back.

Jason
 

devonwoody

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Jason :

The 42T blade is brand new of British Sheffield manufacture so should be sharp?

How does one distinguish negative rake?
 

jasonB

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Take a straight edge from the center of the bore to a tooth, if the tip of the tooth touches first then you have positiverake, if the base touches first you have negativerake.

Jason
 

Steve Maskery

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devonwoody":1q5ycbc3 said:
Seeing that a fence is not involved the riving knife problems should not in my opinion present any operating problems. Am I correct?
I'd say, yes, you are. But even if you use the riving knife, I wouldn't expect 0.1mm to cause a problem. It might if it were 0.1mm tighter and were ripping, but not wider and crosscutting.

Cheers
Steve
 

Adam

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FelderMan":de4017hm said:
Is your new saw table the Record TSPP250 by any chance ??
I believe Devon has already tried and rejected one of those saws. He's now on his second manufacturer! I'm sure he'll correct me if I'm wrong!

Adam
 

devonwoody

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Graduated to my third tablesaw, started with a Triton 3 years ago and will let you know sometime in the future which was the best :)

I'm beginning to think T/saws can be like the ladies, very tempermental at times :)
 

Alf

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devonwoody":10hlkyba said:
I'm beginning to think T/saws can be like the ladies, very tempermental at times :)
If you go round comparing ladies to table saws, no wonder they tend to be temperamental... :roll: :lol:
 
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Anonymous

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devonwoody":2cilnvuh said:
Put a different blade to my new tablesaw yesterday, the one supplied was a 27 tooth ripping blade. The manual calls their 38 tooth a standard blade. Why the machine does not therefore come with a standard blade gave me some thoughts.

The new blade of a different manufacturer to my saw model which has 42 teeth however does not produce a crosscut any better than original!
Surprised DW. Generally the more teeth, the better the crosscut - up to a point. I find 42 point blades much better than 24 for crosscut and they rip just fine.

maybe the 42 tooth was not a decent manufcturer? or not sharp?
 

devonwoody

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Tony,

That's what I would have thought, so I splashed out on the 42t blade.

I do have a cmt 60t blade on the mitre saw and that was what I was trying to ape. The cut has the appearance of glass with that blade.
 

Ed451

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I use all Dimar blades. IMHO, they're the best for the money. I have their combination blade on my table saw and the only time I change it is to put on the dado set or their rip blade if I'm going to do a lot of ripping. I took the stock blade off my mitre saw and added the Dimar blade: the difference was like night and day. As usual, I'm not affiliated with Dimar or anyone that sells that product, I'm just a happy customer.

Ed :)
 

devonwoody

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thanks Ed 451 for feedback, I've checked out a couple of blades I have on my mitre saw 60t & 80t which both seem to have positive rake so will give them a run at crosscuts and see if I can get the end grain cut I so desire :wink:
The accuracy of my new table saw on crosscuts is very satisfactory but a poor finish compared to the cut the 60t CMT was giving.

Haven't tried my adjustable groover cutter blade yet (not a proper dado function blade). Anyone out there using this groover blade ?
 
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Anonymous

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I have a jet contractor saw . I use a 24 tooth for riping and a 60 tooth for finer crosscuts. I use a 80 tooth thin curf on my dewalt 12 slider. Mikie
 
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