I got tired of dealing with fractions and bought a metric tape measure. Don’t try to convert it to inches. It is way easier than figuring out the decimal equivalent of 7/8.
I originally used this method to make a ring of a specific radius but quickly found out that after turning ( cutting off the corners of the ring) the ring would end up with a smaller radius. Stated another way, The radius must go to the center of your segment not the ends. The measured radius ,let’s say 6 inches, to the assembled ring will be correct at the ends but will go past the center of the segment . So I ended up using my angle of cut, the desired radius, and some right triangle trig to calculate the length of the segment.
I always divide the diameter by 5 then multiply that number by pi X 5 to find the circumference. Actually, I generated a chart of multiple number of segments and diameters using Excel.
I got tired of dealing with fractions and bought a metric tape measure. Don’t try to convert it to inches. It is way easier than figuring out the decimal equivalent of 7/8.
Simply the best video I've seen on calculating length and angle ! Thanks
Wouldn't that be easier with metric?
I originally used this method to make a ring of a specific radius but quickly found out that after turning ( cutting off the corners of the ring) the ring would end up with a smaller radius. Stated another way, The radius must go to the center of your segment not the ends. The measured radius ,let’s say 6 inches, to the assembled ring will be correct at the ends but will go past the center of the segment . So I ended up using my angle of cut, the desired radius, and some right triangle trig to calculate the length of the segment.
Very nice thank you!
If you make the number of segments the same number as the circumference, you can just always make your cuts 3.14 in.
I looked on Etsy and the Wedgie for a 20 segmented bowl is 18 degrees. Why the differences?
It's nine degrees on either side.
I always divide the diameter by 5 then multiply that number by pi X 5 to find the circumference. Actually, I generated a chart of multiple number of segments and diameters using Excel.
How do you do it for a tapered bowl?
Answer, buy woodturner pro if you are planning on doing segmented rings. You get 30 days to try it out for free.
There is an app for that now