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Adapt for Non-90 Degree Corners

1:03
1:17
12.7K views

At 1:03 in

Angles for cutting crown flat

What happens here

The presenter briefly explains how to adapt the calculation method for corners that are not perfectly 90 degrees. He reiterates that instead of using 45 degrees as the 'half angle' in the formulas, you would simply measure the actual corner angle, divide it by two, and use that resulting value. He gives an example of an 88-degree corner, which would lead to a 'half angle' of 44 degrees, which would then be used in both the miter and bevel trigonometric calculations.

Goal: Understand how to modify calculations for non-standard corner angles

Tools and materials

  • Digital Angle Finder Johnson — To measure non-standard corner angles
  • Dry Erase Marker Unbranded — To write calculations on the whiteboard
  • Whiteboard Unbranded — To demonstrate the modified calculation for non-90 degree corners

What they say

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bevel is going to be 30. Cut. And if you did your math right, they should fit together like that. Your corner doesn't have to be 90°. Just divide your corner by two. Instead of using 45, just use whatever angle you have. So, instead of memorizing these weird angles, now you can calculate them. Anyways, I got stuff to do. I'll catch you guys later. Peace.

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