How is the cutting dimension for a spherical head calculated?
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How is the cutting dimension for a spherical head calculated? 1. Is there a clear source? 2. What are the calculation formulas or lofting software available? 3. Who has the manufacturer’s cutting dimension table? Extending further, the same applies to other end caps.
The pure spherical crown seems to be expanded directly using D=Rθ, with R representing the mean radius; I’m not sure if this is feasible
If you really can’t do the calculations, ask the head manufacturer to provide you with the data; it’s simple
What’s that behind R? Can we simply draw it in a 1:1 ratio, using the arc length along the mean diameter as the diameter to draw the circle?
When the wall thickness is not large, the drawing software can measure it directly. That’s enough.
For elliptical heads with a small wall thickness, direct measurement is feasible without many issues.
After measuring the maximum curve length, adding four to five centimeters should be sufficient as the diameter for cutting.