Frame: to bevel or not to bevel? - AVS Forum
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post #1 of 4 Old 05-14-2013, 01:39 PM - Thread Starter
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For those who've built their own frames around their screens: is it worth the hassle of making a the frame beveled (i.e. shallower on the inside edge than on the outside) before wrapping it in velvet?

I found some intriguing (and what look like doable) instructions at http://www.avoutlet.com/index.php?dispatch=pages.view&page_id=42, for a frame that looks like this in cross section:



... but if the thing is just going to be wrapped in velvet and attempting to absorb all the light anyhow, will a fancy bevel like that even be noticeable? Wrapping plain 1x3 boards would certainly be simpler.
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post #2 of 4 Old 05-14-2013, 01:56 PM
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You need the inside edge to be beveled....at least rounded...because if you have a 90 degree corner when using 3/4" thick stock, you will get a shadow on the viewable screen area along two or more edges. This is caused by either Projected or Ambient light clipping the top edge of the Trim and it (Trim) casting a shadow.

That is why you do not see Mfg Screens where the inside edge of the Frame is "tall" and at right angles to the screen's surface.

The instructions as shown expect the end user / attempt'er to have a lot of tools....especially a Table Saw. Not reasonable. But at least they had the design right, when combining a Frame / Trim application.

Now you could it the way we would / will suggest...using materials we would / will suggest.................

.......................................but that is of course only a suggestion. biggrin.gif

To quote James T. Kirk;
"I'm laughing at the superior intellect"
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post #3 of 4 Old 05-14-2013, 02:51 PM - Thread Starter
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Quote:
Originally Posted by MississippiMan View Post

The instructions as shown expect the end user / attempt'er to have a lot of tools....especially a Table Saw. Not reasonable. But at least they had the design right, when combining a Frame / Trim application.

Now you could it the way we would / will suggest...using materials we would / will suggest.................

.......................................but that is of course only a suggestion. biggrin.gif

Duly noted! Reading around, seems like 1x4 poplar boards are mentioned a lot ... do people than use a router to bevel the inner edge and avoid the shadows you mention so vividly? smile.gif
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post #4 of 4 Old 05-14-2013, 04:01 PM
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Quote:
Originally Posted by qBaz View Post

Duly noted! Reading around, seems like 1x4 poplar boards are mentioned a lot ... do people than use a router to bevel the inner edge and avoid the shadows you mention so vividly? smile.gif

Some do...but the sordid truth is, until I started advocating the use of the thinner, tapered, more easier to use MDF Base, 3/4" Poplar was the "Go To" choice almost universally. And yeah...after they lern't mo'bedder, the Wise Ones did Rip, or Rout the edges to eliminate shadows.

Those who did not........came to know the error of their ways. cool.gif

The Status Quo has led more individuals down that dark, dismal path to poor results than any number of "New ideas" has. But that's why we are here! To buck the established order. biggrin.gif

To quote James T. Kirk;
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