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aligning miter slot to blade on dw745

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Forum topic by standevreese posted 09-27-2017 02:37 PM 825 views 0 times favorited 8 replies Add to Favorites Watch
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standevreese

8 posts in 77 days


09-27-2017 02:37 PM

Topic tags/keywords: tablesaw blade dw745 question

Hi guys, i am a newbie from denmark and this is my first post on this forum. I have a dw745 table saw and am trying to align the blade to the miter slot however i get different readings on the dial indicator depending on where i do the measuring on the blade i.e. when i measure nearest the throat plate i am 0.005’’ off but if i have the indicator more horizontally i.e nearer the the top of the blade i am only off within 0.001’’ which would be great if the reading is correct. Fyg i know how to make these measurements i.e raise the blade to max then mark a specific tooth and place the indicator on this mark on the front of blade and then move the blade and indicator to the back and take a a new measurement.
Question(s) is:

1. why this difference in readout

2. is the most accurate measurement taken at the top of the blade or nearest the throat plate or maybe nearest the arbor

3. or is this due to a faulty indicator

Any input much apprecioated.

Brgds Stan

PS i have attached some pics from my measurements

-- --Stan de Vreese, Denmark


8 replies so far

View RobS888's profile

RobS888

2316 posts in 1678 days


#1 posted 09-27-2017 04:29 PM

Hey standevreese,

You should try to measure the same tooth at the front and back. Raise the blade to the highest setting and then select a tooth. Measure the distance then rotate the tooth to the front and measure again. This way you will get the maximum error.

The woodwhisperer has a good video on how to do it.

Edit: you should measure the side of the carbide tooth not the blade, since the tooth is what does the cutting. I couldn’t tell from the pictures if you are on a tooth or the blade.

-- I always suspected many gun nuts were afraid of something, just never thought popcorn was on the list.

View standevreese's profile

standevreese

8 posts in 77 days


#2 posted 09-27-2017 07:21 PM

Hey RobS888,

Thanks for yr reply. Fyi followed the woodwhisperers guide using a combination square to the letter and it seems it
did the trick although it doesnot give you an idea on how much you are off therefore i afterwards used my dial indicator to check how much i was off. First i tried to use the dial indicator on the same carbide tooth but that gave me misreadings as just slightly touching the blade fluctuated the indicator around 0.002’’ wherefore i put a mark on the blade just after the same tooth and that gives me now a consistent 0.001’’ off between front and back.

Suppose that is good enough for a job site table ?

Thanks again
Stan

-- --Stan de Vreese, Denmark

View johnstoneb's profile

johnstoneb

2633 posts in 2006 days


#3 posted 09-27-2017 07:25 PM

The manufactures usually say .010 so.001 is excellent.

-- Bruce, Boise, ID

View standevreese's profile

standevreese

8 posts in 77 days


#4 posted 09-27-2017 07:47 PM

Thanks Bruce,

So now i can move on to aligning the fence to the miter slot/blade.

-- --Stan de Vreese, Denmark

View RobS888's profile

RobS888

2316 posts in 1678 days


#5 posted 09-27-2017 09:49 PM



Thanks Bruce,

So now i can move on to aligning the fence to the miter slot/blade.

- standevreese


You’re golden!

-- I always suspected many gun nuts were afraid of something, just never thought popcorn was on the list.

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standevreese

8 posts in 77 days


#6 posted 09-27-2017 10:43 PM

You’re golden!

- RobS888

Meaning what ? Is this an american expression i should know. Can y explain what it means. Sorry for my ignorance.

-- --Stan de Vreese, Denmark

View Andybb's profile

Andybb

543 posts in 437 days


#7 posted 09-27-2017 11:19 PM

“You’re golden” means all is good unless you work for NASA. A human hair is .004” so you’re talking about a difference of 25% of the thickness of a strand of hair. Align the fence and “you’re golden”.

-- Andybb - GO HAWKS!

View standevreese's profile

standevreese

8 posts in 77 days


#8 posted 09-28-2017 08:31 AM

Thanks Andy

-- --Stan de Vreese, Denmark

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