Two questions in one post - crosscut sled

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Forum topic by Betsy posted 04-22-2009 03:55 AM 1962 views 1 time favorited 10 replies Add to Favorites Watch
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3334 posts in 3316 days

04-22-2009 03:55 AM

Topic tags/keywords: adjusting crosscut sled sled

OK – I know this has been covered but I can’t find it. So the first question is about how to search the site. I wanted to find a post about adjusting the fence on a crosscut sled. I tried a number of different words to search but nothing came up. How would you search for something like this?

The more important question is adjusting the fence on my new crosscut sled. First – I know my squares are, in fact, square. I also know for a fact that the test material is flat and square and my blade is square to the table at 90 degrees.

I’ve cut a number of test strips and my cut is off just a hair. In fact, you can only see a very tiny amount of light between the square and the end of the board. I’m trying to decide how I should adjust the sled to eliminate the little sliver of light. So if you are placing the square on the right side of the board and the light is on the left end – do you move the fence forward or backward?

Thanks in advance for your help.

-- "Our past judges our present." JFK - 1962; American Heritage Magazine

10 replies so far

View lew's profile


11264 posts in 3176 days

#1 posted 04-22-2009 04:47 AM


Try entering this in the search box “cross cut sled” (include the quotes) and adjustment so it looks like this- “cross cut sled” adjustment.


-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View ajosephg's profile


1878 posts in 2981 days

#2 posted 04-22-2009 05:14 AM

Check out this website garagewoodworks. I’m pretty sure he shows how he aligns his sled.

-- Joe

View Betsy's profile


3334 posts in 3316 days

#3 posted 04-24-2009 02:49 AM

Thanks guys. Still not getting very far. Everything seems to be square and in line with everything else and still can’t get a square cut. I ripped a few boards and they come out straight as an arrow – just can’t get the cross cut sled to cut square. I’m not sure what I am doing wrong as I’ve made cross cut sleds before with no issues. Guess my luck has run out!

Will keep trying. I am persistent if nothing else.

Thanks again.

-- "Our past judges our present." JFK - 1962; American Heritage Magazine

View sIKE's profile


1271 posts in 3174 days

#4 posted 04-24-2009 02:51 AM

Someone posted this one up a while back…

-- //FC - Round Rock, TX - "Experience is what you get just after you need it"

View FredG's profile


140 posts in 3117 days

#5 posted 04-24-2009 03:36 AM

View thelt's profile


657 posts in 2800 days

#6 posted 04-26-2009 02:44 PM

_FredG wrote: Someone posted this one up a while backā€¦

Did anyone look at the prices on these??

-- When asked what I did to make life worthwhile in my lifetime....I can respond with a great deal of pride and satisfaction, "I served a career in the United States Navy."

View BroDave's profile


107 posts in 3234 days

#7 posted 04-26-2009 03:21 PM

I’m not sure if this is your problem but I drobe myself nuts trying to get my sled to cut square when the saw and fence would cut square.
If your miter gauge has any “slop” in it your cut will not be square, so if your sled runner has “slop” your cut will be off. By slop I mean side to side movement of the runner in the miter slot.

-- .

View dalec's profile


613 posts in 3309 days

#8 posted 04-26-2009 04:00 PM


From what you described, your cross cut sled is off by a small fraction of a degree. If you measure your cut holding the square against the side of the board that you used to register against the fence and the sliver of light opens to the left, then the left side of the fence needs to brought back relative to the right side of the fence or the right end of the fence needs to brought forward. This adjustment will be a very small.

The way to look at it, is think of the plastic 180 plastic protractor we used in school. O degree to the left and 180 to the far right of the arc. 90 degree at the midpoint of the arc. The heel of the protractor is your fence. Hold your square against the heel and any thing less than 90 degree will result in a gap to the far end of the square.

I had to think about this some more - if the gap is on the left side of the square, the angle between the fence the the blade (miter slot) needs to grow larger (the angle between the saw blade and the left side of the fence opened up slightly)

I hope this makes sense to you.


View Julian's profile


880 posts in 2946 days

#9 posted 04-26-2009 05:43 PM

Forget using squares and all that. Just cut as long of a piece as you can on your sled, then flip it 180 degrees(flip the side facing the fence over so its facing away from the fence), then make another cut. After this, just measure each end, and whatever the difference is, is equal to twice the amount that your fence is off. I use this method, and have dead on square cuts at 24” crosscut capacity on my large sled.

-- Julian, Park Forest, IL

View Betsy's profile


3334 posts in 3316 days

#10 posted 04-26-2009 06:52 PM

Dalec and Julian – both methods make perfect sense. I’m going to work some more on the sled today or tomorrow and see where I get. Thanks for the help. Never was very good at all the angle stuff in math class!

Dave – I thought slop might be my problem also, but my runners are as close to perfect as I think they can be. But that was my first thought.

Thanks again.

-- "Our past judges our present." JFK - 1962; American Heritage Magazine

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