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Other topics for members => General Woodworking => Topic started by: Nate Surveyor on April 19, 2007, 12:33:08 PM

Title: Picture Frames, with compound angles
Post by: Nate Surveyor on April 19, 2007, 12:33:08 PM
Does anybody have all the compound angles for a pic frame?

Is there a web site, where I can plug in the amount of "Compound angles", and then dial it in, and cut?

I tried it by hand the other day, with a skill saw, and figgered it out that there is just a wee bit more to the task than just go cut them!

Thanks.

Nate
Title: Re: Picture Frames, with compound angles
Post by: Radar67 on April 19, 2007, 12:40:44 PM
A picture frame with 4 sides uses 45° angles. If you want a tilt to the frame, you still use the 45° angles for the corners, then decide what you want for the tilt. 5° is a good starting point. You should use a compound miter saw for the best results. A table saw works well too.

Stew
Title: Re: Picture Frames, with compound angles
Post by: JimBuis on April 19, 2007, 01:07:13 PM
I like to use a table saw myself, then use a router to add a decorative edge to the pieces before assembly.

Jim
Title: Re: Picture Frames, with compound angles
Post by: low_48 on April 20, 2007, 12:27:50 AM
The 45 degree cut won't work when making a compound angle cut. For a 5 degree slope you have to set it at 45.11 degreees. Here is a link for just such work.
http://www.betterwoodworking.com/compound_miter.htm
Title: Re: Picture Frames, with compound angles
Post by: Nate Surveyor on April 20, 2007, 01:43:27 AM
Mr. 48, that is just what the doc ordered! Thank you!

I had the blade tilt at 20°, and needless to say, it did NOT work!

Nate
Title: Re: Picture Frames, with compound angles
Post by: Larry on April 21, 2007, 08:21:00 PM
The chart requires you to very precisely set blade angles in two different planes.  You might be able to use a simpler and more accurate method.  Cut a spring board to the proper spring angle (they call it "S" for slope).  Put the board on the bed of your miter or RAS.  Cut your workpiece on top of the spring board.  You will only have to align the blade in one plane...if you have accurate stops and can use the stop angles it becomes child's play.

I've also used the above method with a sled on the table saw...just a little different.