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Cutting a really wide chamfer?

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Forum topic by jdmaher posted 711 days ago 1638 views 0 times favorited 36 replies Add to Favorites Watch
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jdmaher

280 posts in 1216 days


711 days ago

How to cut a really wide chamfer?

This is for the top of “sideboard” (that will actually be used to store AV electronics). The top is 50” long and 18” wide and 1-1/8” thick. I want to cut a wide chamfer of about 8.5 degrees on three edges. That will leave 3/4” cut edge thickness, and provide a chamfer about 2.5” wide.

For the long dimension, I’ll put a nice high support on the fence, crank in the angle and run it along. Probably do it in at least two passes to “sneak up” on a nice finished cut.

Here’s the problem: in my basement shop, I don’t have the ceiling height to use the same technique for the width edges.

I’m sorta thinking circular saw. I guess I could clamp the board, upright, to the railing on the deck, along with a “box” to provide surface area for the base of the saw. Then do the same thing: set an angle and “sneak up” on the cut.

But that seems like a kludge.

Am I overlooking a nice, safe, easy answer?

-- Jim Maher, Illinois


36 replies so far

View Nick_R's profile

Nick_R

141 posts in 786 days


#1 posted 711 days ago

Sounds like a tough one.. This sounds stupid, but can you lay your router table on its side?

-- Hope for the best but plan for the worst. - 7 finger Nick :)

View Murdock's profile

Murdock

107 posts in 1120 days


#2 posted 711 days ago

I had the same problem recently on a buffet table I was helping with. Sadly we ended up taking it to a cabinet shop to have it done. I think we paid them $20 or $30 to do it. We had to call 4 shops before we found one that would even entertain the idea.

Circular saw can work if you have a steady hand even if you are using a strait edge.

-- "Anyone who has never made a mistake has never tried anything new." - Albert Einstein

View crank49's profile

crank49

3380 posts in 1607 days


#3 posted 711 days ago

Nice, safe, easy.

Hand plane.

Piece of cake.

-- Michael :-{| “If you tell a big enough lie and tell it frequently enough, it will be believed.” ― A H

View Mosquito's profile

Mosquito

4650 posts in 929 days


#4 posted 711 days ago

I use hand planes to do chamfers that size, safe, quiet, less dust.

Otherwise, if you have a router, see if you can find a bit that would work, though the smallest I’ve seen is 11.25 degree… or you could go with a really large bit (such as panel raiser) but those are expensive. And you’d need a variable speed router.

edit: Michael beat me to it on the hand plane

-- Mos - Twin Cities, MN -- Stanley #45 Evangelist - www.youtube.com/MosquitoMods

View jdmaher's profile

jdmaher

280 posts in 1216 days


#5 posted 711 days ago

Handplane, huh?

You know, I got me some of them, but I almost never use them. My hand skills – well, let’s see, what’s the word?, oh yeah! – SUCK!!!

Actually, my hand skills are pretty non-existent. It always seems easier to set up a machine, and there’e that illusion of precision. Plus, I fear making a mess of really nice figured cherry. Still, that’s probably the right thing to do . . .

I did think about a panel-raising bit on the router table set up with an outrigger, but for two cuts, that seems excessive.

Maybe its time to try hand-planing . . .

-- Jim Maher, Illinois

View Smitty_Cabinetshop's profile

Smitty_Cabinetshop

9830 posts in 1255 days


#6 posted 711 days ago

Handplane. Use a marking gauge to mark your lines on top and edge, and go to town. Easy, safe and deliberate…

EDIT: Oh, and precision? No equal to a smoothing plane that can take a thou here and there…

-- Don't anthropomorphize your handplanes. They hate it when you do that. -- OldTools Archive

View Loren's profile

Loren

7464 posts in 2284 days


#7 posted 711 days ago

Snap some chalk lines, hack off most of the material with a drawknife,
move to a hand plane or a shinto saw-rasp, then to finer files, then
sand with a block.

-- http://lawoodworking.com

View Mainiac Matt 's profile

Mainiac Matt

3905 posts in 965 days


#8 posted 711 days ago

You might be able to pull this off with a raised panel bit on a router table

-- Pine is fine, but Oak's no joke!

View Cosmicsniper's profile

Cosmicsniper

2199 posts in 1795 days


#9 posted 711 days ago

Quick and easy with a hand plane…hog off most of the material like Loren said, though I’d use the circ saw for that.

-- jay, www.allaboutastro.com

View Gshepherd's profile

Gshepherd

1466 posts in 838 days


#10 posted 711 days ago

Do you have a sliding miter saw?Cut Flip to do the other side. Of course you will have to sneak up on the second cut but you can be surprised how close you will get it.

-- What we do in life will Echo through Eternity........

View Wdwerker's profile

Wdwerker

332 posts in 870 days


#11 posted 711 days ago

Make a jig and use a router. Rip some large angled wedges to put under a jig. A hinge mortise bit or something that will leave a flat bottom cut. Then sand untill it matches the front bevel.

-- Fine Custom Woodwork since 1978

View bandit571's profile

bandit571

6869 posts in 1320 days


#12 posted 711 days ago

Start out at the edge, where you want the champfer to go. Angle a handplane so that it cuts at a diagonal to the direction you will be going. Also lay the plane at the angle of the champfer. First pass will just take off a thin ribbon. Next pass, the ribbon gets a bit wider. And so on until the champfer is finished, in maybe 10 minute per.

Go to my project gallery. Look up a “TV Table’ , made from red wood, cedar I think it was. All the edges were done this way. With a simple #3 smooth plane.

Note: when doing this, make sure the front”knob” is hanging over the edge. You want to go along at angle.

-- A Planer? I'M the planer, this is what I use

View casual1carpenter's profile

casual1carpenter

353 posts in 1112 days


#13 posted 711 days ago

mount the circular saw to a table / workbench set angle so as to rotate the circular saw not the table top. or mount the saw base 90 degrees to table dial in angle with saw tilt.

View 1yeldud1's profile

1yeldud1

290 posts in 1679 days


#14 posted 711 days ago

any chance you could just roll your table saw outside and find a way to support the work piece upright while making these 2 cuts ?

View cabmaker's profile

cabmaker

1311 posts in 1445 days


#15 posted 711 days ago

You could have it done in the time it takes to read all these responses. (with #6 or #7), plane that is.

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