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Gemstones, Minerals & Fossils
Lapidary
Hello i'm new here! Faceting
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<blockquote data-quote="GallicProspector" data-source="post: 261687" data-attributes="member: 441"><p>What I meant with 0.1 degree is that when I set the angle, I can hardly tell if I do 43.25 or 43.35, but when I cut the other facets, they will be at the same angle at the first one +- 0.02 degree, I just do not know what is the exact value of the angle, but all the facets need to be cut at the same depth, and the dial gauge allows me to reach that +-0.02 precision (I am just not sure of the absolute value of the angle - and I don't care, reapetability is the key).</p><p></p><p>In terms of mm, it is easy to calculate, the distance between the pivot and the stone is about 15cm, so you can calculate what a angle of 0.01degree means in term of displacement at the end of the 15cm arm (I am lazy I let you do the maths).</p></blockquote><p></p>
[QUOTE="GallicProspector, post: 261687, member: 441"] What I meant with 0.1 degree is that when I set the angle, I can hardly tell if I do 43.25 or 43.35, but when I cut the other facets, they will be at the same angle at the first one +- 0.02 degree, I just do not know what is the exact value of the angle, but all the facets need to be cut at the same depth, and the dial gauge allows me to reach that +-0.02 precision (I am just not sure of the absolute value of the angle - and I don't care, reapetability is the key). In terms of mm, it is easy to calculate, the distance between the pivot and the stone is about 15cm, so you can calculate what a angle of 0.01degree means in term of displacement at the end of the 15cm arm (I am lazy I let you do the maths). [/QUOTE]
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Gemstones, Minerals & Fossils
Lapidary
Hello i'm new here! Faceting
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