spring angle of crown molding - Woodworking Talk - Woodworkers Forum
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post #1 of 4 Old 08-15-2011, 05:00 PM Thread Starter
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spring angle of crown molding

How can I determine if the small crown molding I am using to top a cabinet has a spring angle of 38, 45 or ...?
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post #2 of 4 Old 08-15-2011, 05:10 PM
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Draw a 90 deg. angle, line the end of the crown up like it would be installed. Mark the backside where moulding leaves the 90, top and bottom. conect those 2 points.

What is the angle? 38/52 is the most common.

OH, wait a minute ............Yep!.............That's what he said!

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Last edited by mdntrdr; 08-15-2011 at 05:13 PM.
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post #3 of 4 Old 08-15-2011, 05:38 PM
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Originally Posted by Silver fox View Post
How can I determine if the small crown molding I am using to top a cabinet has a spring angle of 38, 45 or ...?
You can cut crown without knowing what the spring angle is. This method will apply for any crown at any spring angle. By placing the bottom of the crown on the MS table against the fence as it sits on the cabinet or wall, make a wedge to fit either behind or in front of the crown for support. Then just set your miter for 45 degrees.

Or, you set it up as drawn below:


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post #4 of 4 Old 08-17-2011, 07:25 AM
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You can also cut a 45 degree piece of scrap wood for this. Take the crown, place it on the wall, drop the triangle behind it and if it's flush, it's a 45 degree spring angle, if it's not, it's 52 or 38. Advance to 1:15 in this video below for an example.

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