open-discussion
open-discussion > RE: Sources for plastic spheres
Feb 27, 2009 03:02 PM | Karl Helmer
RE: Sources for plastic spheres
Hi Blaise,
I've looked over the years for sources of plastic spheres with not much success. In years past I was after small sizes for calibration samples, but found that companies make spheres by gluing two almost-spherical halves together which results in something that is not really a sphere but more like a slightly elongated sphere. To get a perfect sphere, I think you really have to use a single block of material and mill it out - which is why they are so expensive.
regards,
Karl Helmer
I've looked over the years for sources of plastic spheres with not much success. In years past I was after small sizes for calibration samples, but found that companies make spheres by gluing two almost-spherical halves together which results in something that is not really a sphere but more like a slightly elongated sphere. To get a perfect sphere, I think you really have to use a single block of material and mill it out - which is why they are so expensive.
regards,
Karl Helmer
Threaded View
Title | Author | Date |
---|---|---|
Blaise Frederick | Jan 23, 2009 | |
Burkhard Mädler | Aug 11, 2009 | |
Karl Helmer | Feb 27, 2009 | |