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Unexpected problem getting TS to cut 38" plywood, options ??

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Forum topic by OldBull posted 06-21-2021 03:14 PM 653 views 0 times favorited 24 replies Add to Favorites Watch
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OldBull

460 posts in 460 days


06-21-2021 03:14 PM

I need two 38” x 23” x 1/2” pieces so I roughcut a sheet of BB plywood down to 40” x 24” to give myself some room to square it up and clean the edges. I probably should not have been surprised that my table saw couldn’t cut 38”. I did a good job with a skill saw to get where I was at. I have a sacrificial fence piece that is very square so I used it as a guide to cut down to 40”. But my delta 36-725T2 will not fit 38”. I looked at extending the rails so I could clamp the guide across them as a fence but it just wouldn’t work, the back rail doesn’t protrude past the extension wing like the front.

Can I get cabinet worthy cuts from a skill saw ? Any options ?

Thanks for any help.


24 replies so far

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SMP

4459 posts in 1070 days


#1 posted 06-21-2021 03:18 PM

If they are already 40”, you only need to cut 2” off, not 38. Sometimes you just have to do some basic math to figure out a different way to cut things.

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OldBull

460 posts in 460 days


#2 posted 06-21-2021 03:23 PM


If they are already 40”, you only need to cut 2” off, not 38. Sometimes you just have to do some basic math to figure out a different way to cut things.

- SMP

I was kind of stunned by the basic math statement.

I need a fence out to 38” so the cut is true for a cabinet !!!

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controlfreak

2519 posts in 766 days


#3 posted 06-21-2021 03:27 PM

When too big for the fence or too large for my saw top, like a full sheet, the Track Saw is my friend.

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OldBull

460 posts in 460 days


#4 posted 06-21-2021 03:28 PM

control freak if I take my time do you think I can get pretty square ?? What brand of track are you using, my skill saw is old and would need universal.

”“When too big for the fence or too large for my saw top, like a full sheet, the Track Saw is my friend.””

That is what surprised me, I didn’t think a 24×40” piece would ever not fit.

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OldBull

460 posts in 460 days


#5 posted 06-21-2021 03:34 PM

Putting the 2” between the fence and the blade is a no no correct ?? Would the miter gauge on the right side of the blade be able to handle a large piece?

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splintergroup

5484 posts in 2387 days


#6 posted 06-21-2021 03:45 PM

You might be able to screw a squared up narrow extension (maybe 6” wide x 24”+ long) to your 2” “stub” on your BB ply. This means you could set your fence further out (5” or so) and have a squared edge to ride the fence.

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controlfreak

2519 posts in 766 days


#7 posted 06-21-2021 03:46 PM



control freak if I take my time do you think I can get pretty square ?? What brand of track are you using, my skill saw is old and would need universal.

”“When too big for the fence or too large for my saw top, like a full sheet, the Track Saw is my friend.””

That is what surprised me, I didn t think a 24×40” piece would ever not fit.

- OldBull


I got a really good deal on the Grizzly track and saw combo about two years ago and like it. There may be some better options out there now. I was using a guide (strait edge) but had a bad habit of drifting off as my reach extended over a full sheet. With the cost of ply it was a worthwhile investment. I only have the 4 1/2’ track and not the full 8’ + so I need to move and reset to do a long rip cut. Even though I am not supposed to, I have set the fence to 2” and have the 38” offcut as my work piece. I did it a lot when I was cutting plywood into strips for French cleats. That way I could set the fence one time and let’er rip.

View Ed Weber's profile

Ed Weber

66 posts in 47 days


#8 posted 06-21-2021 03:55 PM


Can I get cabinet worthy cuts from a skill saw ? Any options ?

Thanks for any help.

- OldBull

If you use a good quality blade, there’s no reason why not.
As long as you have a straight reference edge (fence) to guide the saw, the cut quality shouldn’t be an issue.
Track-saws just tack some of the variables out of the equation but at their heart are still nothing more than a skill saw (on a track).

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OldBull

460 posts in 460 days


#9 posted 06-21-2021 03:55 PM

I did a practice run with the miter guage on the right side and it did not slide well. If I had to build a huge crosscut sled it would probably only be used one time.

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LeeRoyMan

1954 posts in 892 days


#10 posted 06-21-2021 04:00 PM


Putting the 2” between the fence and the blade is a no no correct ??
- OldBull

If you don’t have the experience, you probably shouldn’t.

Why don’t you just set up a fence and use your skill saw. Stay Safe.
If you set it up square and keep your saw flat against the fence, you shouldn’t have any trouble.

A lot of people cut on top of some 2” Styrofoam so that both pieces are supported after the cut.

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OldBull

460 posts in 460 days


#11 posted 06-21-2021 04:07 PM

Thanks all for the help.

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Spaceballs

17 posts in 312 days


#12 posted 06-21-2021 04:21 PM

Hi Bull- I would do what the gentleman above stated, cut two inches off by setting up your saw to take off the difference. It might not be the safest way but it should be fine. Just remember to include the thickness of your blade in the amount you are removing or taking off, the saw kerf. Also, sort of stand to the side of the fence because the small strip you are removing will sometimes shoot back from the action of the blade. An alternative would be get a long straight edge (often a level will do) clamp it down to the piece & use the router to trim off the 2“ strip. If your router is sort of small it can be done by making a few passes. Might have to just take a 1/8 inch out at a time if your router has a small motor. In other words, set you router to be just 1/8 “ deep and increase its depth 1/8 inch on each pass thus removing a little stock each pass & not overloading the router by doing the whole 1/2 inch thickness all at once. Do a little at a time. Also, and again, be sure to include the width of the router bit in the amount you are taking off. You can always use a sample piece to try it on before using your final piece of the project. Practice on another piece first…. God Bless !

-- Mark of Dixie Woodcraft

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OldBull

460 posts in 460 days


#13 posted 06-21-2021 04:33 PM

Thanks, My biggest concern with the workpiece as the cuttoff was actually accuracy since I have never done it that way and it is for a cabinet.

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Robert

4643 posts in 2645 days


#14 posted 06-21-2021 05:12 PM

Cut the 2” off with the fence left of blade.

Yes, its an advanced cut requiring some skill therefore the novice needs to be aware of a splitter, proper feeding and body position are critical to a safe, accurate cut.

-- Everything is a prototype thats why its one of a kind!!

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OldBull

460 posts in 460 days


#15 posted 06-21-2021 05:22 PM

Thanks, I am curious as to why have the fence left of the blade.
thanks

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