Columns -- Long Bevels/miters

[ChuckM]

The stock guides are against the fence, the beveled blade is 19 inches away. Since a 45 degree bevel has a tendency to lift the workpiece, rollers 19 inches away can't help hold it down, near the cut.
But either way, you can't cut a piece shaped like the state of Utah, with the short side against the fence.
That notch is about 24" long, which would mean that the workpiece would hit the blade before it made contact with the fence.

Not following the Utah piece, so I couldn't comment on that. But it can't be true that the rollers won't allow the saw to cut a bevel cleanly and accurately because of the 19" or, for that matter, a 24" width. The job of the rollers is NOT to hold down the board, but to guide the board towards the fence. Holding down the board is done by the operator, whether the stock guides is there or not. In fact, with the guides in place, the operator only needs to focus on keeping the board flat on the table as the piece is fed, without worrying about it veering away.

On the next suitable shop occasion, I'd try to find a wide scrap and show that, even though the miter fold YouTube video already showed the use of the stock guides as an aid to bevel the work.

 

[Crazyraceguy]

The proportions may be slightly off, but this is the basic shape of the shorter column.
The overall height of the long edge is approx 86, the thin section 3" wide and 24" long. Also, there are 2 of these, mirrored, so the method has to account for that too.
The bevel needs to be cut on the longest edge.

 

[sdscolumbia]

I looked around my area at the big box stores for some decent 12 foot long 1x10s and they were all horrible.  1X10 preprimed from a local lumberyard were super expensive.  So, I decided to make the columns out of 4 panels each -- a frame of 1X4s with 1/4" plywood underneath.  This way I am able to make a 11.75" wide column with plenty of room inside to reinforce with a full length (12 foot) 2X4.
[attachimg=1]
[attachimg=2]
[attachimg=3]

Taking some advice from earlier in this thread, I decided to bite the bullet and buy a longer rail so I could add one of my existing rails to it and cut the 12' in one pass.  I plan on mitering/beveling 3 sides and rabbeting the 4th side for the removable panel.  Will post pics of progress. 

 

[sdscolumbia]

Conveniently, my son and I were in the process of starting a new project in the garage -- a 14' wooden boat, when I got the request from my sister-in-law to build the columns for a wedding next month.  That is why I have a 14' long, short table in my garage, which is perfect for building these 12' columns.  Boat will have to wait.

My wife may never get to park in the garage again.

 

[sdscolumbia]

Made some progress. 
[attachimg=1]
[attachimg=2]

 

[Crazyraceguy]

Looks good, you're getting there.

 

[sdscolumbia]

Finished product -- thanks to all for your help.

View from the back (Band) side showing the removable panels:

[attachimg=1]

"Front" side with miter folded corners:

[attachimg=2]

Side:

[attachimg=3]

 

[rvieceli]

Those look really nice. Well done.

If you don’t have a need for those V in the future I’d seriously consider selling them to a wedding venue.

Ron

 

[Crazyraceguy]

Looks great.

 

[Axis39]

Nice job!  Those do look really good.

Can't wait to see the boat....

 

[sdscolumbia]

Don't know why I was worried about my mistakes (there were many) or my sister-in-law's paint job -- like someone mentioned earlier, they were covered with flowers.  But mother of the bride was happy, so I was happy.

[attachimg=1]