https://wiki.opensourceecology.org/index.php?action=history&feed=atom&title=Cold_Saw%2FMeasure_Flat_Calc 2026-04-21T15:34:38Z Revision history for this page on the wiki MediaWiki 1.39.13 https://wiki.opensourceecology.org/index.php?title=Cold_Saw/Measure_Flat_Calc&diff=68150&oldid=prev 2012-07-03T04:43:55Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 04:43, 3 July 2012</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3">Line 3:</td> <td colspan="2" class="diff-lineno">Line 3:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Using pythagorean theorem, distance between swivel hole&#039;s center and one of the front corners is 115mm, approximately.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Using pythagorean theorem, distance between swivel hole&#039;s center and one of the front corners is 115mm, approximately.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>For minimum cutting angle of 90 degrees (45 deg in both directions), the minimum measure <del style="font-weight: bold; text-decoration: none;">reel </del>length is the arc between 2 points of a circle.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>For minimum cutting angle of 90 degrees (45 deg in both directions), the minimum measure <ins style="font-weight: bold; text-decoration: none;">flat </ins>length is the arc between 2 points of a circle.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Those 2 points are 90 degrees apart; 360 deg is full circle angle; hence 90 / 360 = 1/4 as fraction of circumference required.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Those 2 points are 90 degrees apart; 360 deg is full circle angle; hence 90 / 360 = 1/4 as fraction of circumference required.</div></td></tr> <tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l9">Line 9:</td> <td colspan="2" class="diff-lineno">Line 9:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Circle circumference is diameter x pi.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Circle circumference is diameter x pi.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Minimum measure <del style="font-weight: bold; text-decoration: none;">reel </del>length = (115mm x 2 x 3.14) / 4 = 180mm, approximately</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Minimum measure <ins style="font-weight: bold; text-decoration: none;">flat </ins>length = (115mm x 2 x 3.14) / 4 = 180mm, approximately</div></td></tr> </table>

YK https://wiki.opensourceecology.org/index.php?title=Cold_Saw/Measure_Flat_Calc&diff=68149&oldid=prev 2012-07-03T04:42:34Z

<p>Created page with &quot;The swivel plate&#039;s hole is 56mm from the front edge and 100mm from the side edge, approximately. Using pythagorean theorem, distance between swivel hole&#039;s center and one of the ...&quot;</p> <p><b>New page</b></p><div>The swivel plate&#039;s hole is 56mm from the front edge and 100mm from the side edge, approximately.<br /> <br /> Using pythagorean theorem, distance between swivel hole&#039;s center and one of the front corners is 115mm, approximately.<br /> <br /> For minimum cutting angle of 90 degrees (45 deg in both directions), the minimum measure reel length is the arc between 2 points of a circle.<br /> <br /> Those 2 points are 90 degrees apart; 360 deg is full circle angle; hence 90 / 360 = 1/4 as fraction of circumference required.<br /> <br /> Circle circumference is diameter x pi.<br /> <br /> Minimum measure reel length = (115mm x 2 x 3.14) / 4 = 180mm, approximately</div>

YK