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Gemstones, Minerals & Fossils
Lapidary
Actually Building the Machine!
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<blockquote data-quote="Nena" data-source="post: 312805" data-attributes="member: 7861"><p>Even when it needs to coverup 616 steps per degree, non of the indexes will get that position. </p><p></p><p>32, 64, 72, 77, 80, 96, 120</p><p></p><p>360/32 = 11,25 OK</p><p>360/64 = 5,625 OK</p><p>360/72 = 5 OK</p><p>360/77 = 4,6753246753246753246753246753247 -> Useless! Not a usefull index! Incorrect! Invalid! (Graphical Imposible)</p><p>360/80 = 4,5 OK</p><p>360/96 = 3,75 OK</p><p>360/120 = 3 OK</p><p></p><p>The 64th has the smallest rounding. 625 thus you need steps from 0,005 to coverup all positions from all indexes so 360 / 0.005 = An index of 72.000 wil make all possebilities. Thats the smallest! But hey! 0.025 works too! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> 360/0.025 = <strong>14400</strong>!!! So an index of 14.400 will cover up every index on a lapedary!</p><p></p><p>It does not matter anyway, the overal index that is used the most are the 64 and the 96. And dont forget the 5% error rate from a stepper motor <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue :p" loading="lazy" data-shortname=":p" /> and the metal that is used, the temperature, the... the... lol <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="Nena, post: 312805, member: 7861"] Even when it needs to coverup 616 steps per degree, non of the indexes will get that position. 32, 64, 72, 77, 80, 96, 120 360/32 = 11,25 OK 360/64 = 5,625 OK 360/72 = 5 OK 360/77 = 4,6753246753246753246753246753247 -> Useless! Not a usefull index! Incorrect! Invalid! (Graphical Imposible) 360/80 = 4,5 OK 360/96 = 3,75 OK 360/120 = 3 OK The 64th has the smallest rounding. 625 thus you need steps from 0,005 to coverup all positions from all indexes so 360 / 0.005 = An index of 72.000 wil make all possebilities. Thats the smallest! But hey! 0.025 works too! :D 360/0.025 = [b]14400[/b]!!! So an index of 14.400 will cover up every index on a lapedary! It does not matter anyway, the overal index that is used the most are the 64 and the 96. And dont forget the 5% error rate from a stepper motor :P and the metal that is used, the temperature, the... the... lol :D [/QUOTE]
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Gemstones, Minerals & Fossils
Lapidary
Actually Building the Machine!
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