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Best way to rip 3/4 plywood ??

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Forum topic by MNbuzzdust posted 1936 days ago 8437 views 0 times favorited 10 replies Add to Favorites Watch
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MNbuzzdust

99 posts in 1948 days


1936 days ago

My table saw is not big enough to use a fence and rip a 4×8 sheet of ply. I have tried using a circular saw but have a hard time finding a good way to set it up on saw horses etc so I am not leaning over thus not seeing well and getting off the line… what is a good way to do this so I dont mess up a $50 sheet of oak ply ??
Thanks


10 replies so far

View laflaone's profile

laflaone

59 posts in 2277 days


#1 posted 1936 days ago

get a 4×8 piece of styrofoam and put it on a flat floor, like a concrete garage or shop floor. Go to Lowes or HD and get a 9’ aluminum straight edge, usually comes in 2 pieces. Should be around $20. put the ply on top of the styrofoam, clamp the straight edge, and make sure your saw blade doesn’t go all the way through the styrofoam. Put a piece of masking tape on your cut line to minimize tearout.

-- "non illegitimis carborundum"

View lew's profile

lew

9937 posts in 2351 days


#2 posted 1936 days ago

Get some 1” to 2” thick Styrofoam insulation sheet. Lay them on the floor. Put the plywood on the insulation. Mark you cut lines. Set the circular saw depth so that it penetrates the wood but not completely thru the Styrofoam.

You can work right on the plywood surface and see the line really well.

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

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lew

9937 posts in 2351 days


#3 posted 1936 days ago

Looks like laflaone and I crossed thoughts :^)

Well, all great mines think alike!!!

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

View TopamaxSurvivor's profile (online now)

TopamaxSurvivor

14584 posts in 2272 days


#4 posted 1936 days ago

I use a straight edge, but do it on saw horses.

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View upperwoodsman's profile

upperwoodsman

40 posts in 1941 days


#5 posted 1936 days ago

I have to agree with the others on the Styrofoam.
But you can do the same thing with slats of 1×4 or 1×6 or any sub floor.
I only say this couse I had to do it more the once.
Keep the saw off the floor and GOOD LUCK

-- Scott JoBurg MI The More you know the less mistakes...........

View Garyb6's profile

Garyb6

306 posts in 2226 days


#6 posted 1936 days ago

I try as much as possible to have my cuts planned before I go pick up the plywood. Then I have the folks at the box store or lumberyard make the major cuts for me on their panel cutter. Life is much easier this way.

-- Garyb6, “True simplicity does not reveal the tremendous effort it requires.” - Somerset Maugham

View Scott Bryan's profile

Scott Bryan

27251 posts in 2418 days


#7 posted 1936 days ago

Here is a post by Dadoo that looks like an interesting project for setting up a support for breaking down sheet goods that I have been meaning to build.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View HokieMojo's profile

HokieMojo

2097 posts in 2324 days


#8 posted 1936 days ago

this is what i use and it works great. there is a link to the way to build one on that page too.

http://lumberjocks.com/projects/12975

View stanley2's profile

stanley2

305 posts in 2391 days


#9 posted 1936 days ago

If you will be cutting a lot of sheet goods, combine what Scott and Hokie-Mojo have suggested, which is the method I use. But, I cut down the sheet to pieces which are slightly oversize so that I can get to actual size on the table saw with the smaller pieces. A very reliable approach for making plywood casegoods.

-- Phil in British Columbia

View MNbuzzdust's profile

MNbuzzdust

99 posts in 1948 days


#10 posted 1935 days ago

Scott…That is just what I need !!! Thanks for posting it!!

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