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Added to 1,401 ideabooks Last comment "crown follows the uneven wall lines- looks okay but it's heavy trim" This photo has 3 questions
is your miter angle. Write it down rounded to 1/10th of a degree (if it was 18.74587, you would write down 18.7).
You now have your miter and bevel angles for your saw. This works just fine for vaulted ceilings and the whole process is very fast. It is not nearly as time-consuming as it appears here
M = Miter angle of saw
B = Bevel angle of saw
T-1 = Inverse tangent. Read your calculator's instructions to figure out how to get this calculation. It is frequently two key presses in a row - inverse and then tangent or function2 and then tangent.
W = Wall angle. This is what the protractor says
is your miter angle. Write it down rounded to 1/10th of a degree (if it was 38.34567, you would write down 38.3).
15. Press clear
16. Input the W value
17. Press TAN
18. Press the memory save button
19. Press clear
20. Input the M value you just wrote down
21. Press SIN
22. Press / (divide)
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