Mitering a Perfect Octagon
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- Опубліковано 5 лип 2011
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Watch George Vondriska illustrate the process of mitering a prefect octagon. A WoodWorkers Guild of America (WWGOA) original video.
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brilliant idea I got finally ....appreciated sir!!
great tool and skills!
thanks
@OldSchoolSkill Thanks!
if you want to use a spline joint what degree would you use
i want to make a fram for a square chess board how would i calculat the lengh of each piece.
good video. thanks. What type of joinery would you recommend? a video on joinery methods for an octagon would be great
Hello. Biscuits would be a good choice here. You could also simply use butt joints for this.
Thanks
Paul-Woodworkers Guild of America
Great video! thanks for the math I was making it much harder than it is! HAHA
Doesn't say what you did with 19 3/4 and how did you cut hole from board to fit poker rable with felt on it to fit and still able to make base trim with it to put cups holes. Isnt explanned well so know how to do. Its great out come but lost after felt to continue
That’s for the video. I have a question. What is the advantage of using a table saw over a chopsaw for a job like this? I appreciate your input
Hello. It really comes down to personal preference, and where you feel you can get the best accuracy. Paul-Woodworkers Guild of America
Can someone explain this to me mathematically? The interior angles of an octagon are 135, cut that in half and its 67.5 so why is the mitre set at 22.5? I know 90-67.5 = 22.5 but im having trouble connecting the dots.
Tito Titoburg An octogon has 8 sides but there will be 16 individual cuts 360 divided by 16 equals 22.5 I had some trouble myself but I was able to figure it out
the real reason is because when you set your miter saw to zero you‘re actually cutting a 90 degree angle, not a zero degree angle! So you have to subtract the angle you want to cut from 90 to get to the angle you have to set on your miter saw.
360 divided by eight equals 45 but the 45 is formed by two pieces (of eight total) butting together so therefore each piece is 22.5 degrees.
How do you calculate the length of each segment?
+Tech71 Length of a segment on an octagon is A=P/8, where A=segment length and P = perimeter of the circle. Here is an on-line calculator that can be used to assist: www.pagetutor.com/octagon_layout/
+WoodWorkers Guild Of America Thanks!
@@Wwgoa thanks for the Octagon calculator link.
Commenting on octagon day.
J o i n u s
I wanna have a calm hobby like demeanor but I’m always chasing the clock..... I just wanna do what I like and relax while I’m doing it