topic Re: How to Make sense of curve curvature in Creo in 3D Part & Assembly Design https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439314#M116923 <HTML><HEAD></HEAD><BODY><P>Its based on the equation number (4) here:</P><P><A href="http://mathworld.wolfram.com/OsculatingCircle.html">http://mathworld.wolfram.com/OsculatingCircle.html</A></P><P>Sirini is correct, 3 points define a unique circle.in the equation above, think of t1,t2,t3 as points offset ratios. by selecting them close enough as seen in the video, Creo draws the circle and we can mesure the radius or curvature.</P></BODY></HTML> Mon, 26 Mar 2012 17:00:52 GMT ProMan 2012-03-26T17:00:52Z How to Make sense of curve curvature in Creo https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439309#M116918 <P>Hi Everyone,</P> <P>Here's a video tutorial, showing you a graphical method for calculating curvature, its titled "How to make sense of Curvature in PTC Creo". hopefuly you guys can learn a couple of tips. in case you liked the video, please make sure to add a rating or "like" the video. Any comments or questions are welcome.</P> <P>Thanks.</P> <P>&nbsp;</P> <P>&nbsp;</P> <P><div class="lia-vid-container video-embed-center"><div id="lia-vid-M5bnEzYzE6PZnk6uWk8i37cejTdOgGe-w400h300r576" class="lia-video-brightcove-player-container"><video-js data-video-id="6064674150001" data-account="6058022026001" data-player="default" data-embed="default" class="vjs-fluid" controls="" data-application-id="" style="width: 100%; height: 100%;"></video-js></div><script src="https://players.brightcove.net/6058022026001/default_default/index.min.js"></script><script>(function() { var wrapper = document.getElementById('lia-vid-M5bnEzYzE6PZnk6uWk8i37cejTdOgGe-w400h300r576'); var videoEl = wrapper ? wrapper.querySelector('video-js') : null; if (videoEl) { if (window.videojs) { window.videojs(videoEl).ready(function() { this.on('loadedmetadata', function() { this.el().querySelectorAll('.vjs-load-progress div[data-start]').forEach(function(bar) { bar.setAttribute('role', 'presentation'); bar.setAttribute('aria-hidden', 'true'); }); }); }); } }})();</script><a class="video-embed-link" href="https://www.ptcusercommunity.com/t5/video/gallerypage/video-id/M5bnEzYzE6PZnk6uWk8i37cejTdOgGe-">(view in My Videos)</a></div></P> Fri, 28 Jul 2017 13:07:46 GMT https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439309#M116918 ProMan 2017-07-28T13:07:46Z Re: How to Make sense of curve curvature in Creo https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439310#M116919 <HTML><HEAD></HEAD><BODY><P>With 3 points, you're only getting an average of the 3 radii.&nbsp; If you wanted a circle with that radius, I'd creat a line notmal to the spline, thru that point, and use a relation to make the radii equal.</P></BODY></HTML> Fri, 16 Mar 2012 14:02:26 GMT https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439310#M116919 Patriot_1776 2012-03-16T14:02:26Z Re: How to Make sense of curve curvature in Creo https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439311#M116920 <HTML><HEAD></HEAD><BODY><P>Frank, this is a method of calculating radius of curvature geometrically. can you elaborate more on your suggestion?</P></BODY></HTML> Fri, 16 Mar 2012 14:16:14 GMT https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439311#M116920 ProMan 2012-03-16T14:16:14Z Re: How to Make sense of curve curvature in Creo https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439312#M116921 <HTML><HEAD></HEAD><BODY><P>Nice work Solidworm. Wildfire/Creo is all about geometry but there is very little information on how to use geometry within the program. Your video was very helpful.</P><P>Thanks</P></BODY></HTML> Wed, 21 Mar 2012 01:48:24 GMT https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439312#M116921 ptc-1424650 2012-03-21T01:48:24Z Re: How to Make sense of curve curvature in Creo https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439313#M116922 <HTML><HEAD></HEAD><BODY><P>Actually Frank, with 3 points you get a Unique circle. When you have 4 points, you get 4C3 circles or 4 possible circle. Generally, while inspecting the size of a cylinder, 4 points are measured in a plane and the average of 4 circles is taken for size.</P><P>This is my understanding.</P></BODY></HTML> Mon, 26 Mar 2012 03:31:59 GMT https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439313#M116922 s.iyer 2012-03-26T03:31:59Z Re: How to Make sense of curve curvature in Creo https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439314#M116923 <HTML><HEAD></HEAD><BODY><P>Its based on the equation number (4) here:</P><P><A href="http://mathworld.wolfram.com/OsculatingCircle.html">http://mathworld.wolfram.com/OsculatingCircle.html</A></P><P>Sirini is correct, 3 points define a unique circle.in the equation above, think of t1,t2,t3 as points offset ratios. by selecting them close enough as seen in the video, Creo draws the circle and we can mesure the radius or curvature.</P></BODY></HTML> Mon, 26 Mar 2012 17:00:52 GMT https://www.ptcusercommunity.com/t5/3D-Part-Assembly-Design/How-to-Make-sense-of-curve-curvature-in-Creo/m-p/439314#M116923 ProMan 2012-03-26T17:00:52Z