[Mi...] Posted September 16, 2020 Share Posted September 16, 2020 Hello Everyone, I'm having trouble constructing a center circle between a circle pattern. I'm able to recall the circle points to construct a center circle but not with the center diameter I am looking for. If maybe theirs a way to recall edge points on a Radii to construct a circle? I've ran out of ideas. I hope someone can help, thanks.Screenshot (5).png Link to comment Share on other sites More sharing options...
[Ma...] Posted September 16, 2020 Share Posted September 16, 2020 I would construct two theoretical plane parallel to X and Z axis. Then get the intersection from the circles. Now use recall to create the inner circle. Link to comment Share on other sites More sharing options...
[Mi...] Posted September 16, 2020 Author Share Posted September 16, 2020 Great Idea Mark, ill try that. by the sound of it, I think that might just work. I'll let you know how it goes Thank you Link to comment Share on other sites More sharing options...
[Ma...] Posted September 17, 2020 Share Posted September 17, 2020 Please sign in to view this quote. Be aware that doing this will be the intersection for the least squared circle and may not reflect the true dimension. A curve may be better. Link to comment Share on other sites More sharing options...
[Ma...] Posted September 17, 2020 Share Posted September 17, 2020 What about circle evaluated as max inscribed and recall those four cylinders? But i don't know what is more important - the center or diameter. Link to comment Share on other sites More sharing options...
[Mi...] Posted September 18, 2020 Author Share Posted September 18, 2020 The plane + cylinder intersecting point recall projected under the cylinder radius. @Martin Jansky the circle diameter is what I'm most concerned with Link to comment Share on other sites More sharing options...
[Da...] Posted September 18, 2020 Share Posted September 18, 2020 You are recalling Cylinders that have axis to the circle you need to change that to circles or points theoretical plane that intersect each cylinder axis then recall those 4 points in to the center circle. Link to comment Share on other sites More sharing options...
[Me...] Posted September 18, 2020 Share Posted September 18, 2020 Theoretical planes don't guarantee you're measuring to the apex of the circles. If you have curve I'd measure them as curves and use the max/min points in each axis to create my center diameter. Link to comment Share on other sites More sharing options...
[Ma...] Posted September 18, 2020 Share Posted September 18, 2020 If it will be measured by curve then you can recall all points and evaluate max inscribed too. But what purpose of it? It looks like it is measured outside, so this recalling won't solve caliper usage. Your method - recalling centers of cylinders can be used, but you must create another circle and paste nominals of center from recalled circle and then edit its radius ( so 1. circle recalled from cylinders / 2. theoretical circle with PCM/Formula for X,Y,Z from 1. circle ) Link to comment Share on other sites More sharing options...
[Da...] Posted September 18, 2020 Share Posted September 18, 2020 That is true if you are concerned about the max min you can check with the plane at both points But I'm not sure why the Diameter that is derived for the part matters it is not GD&T or GPS callout so envelop rule really doesn't apply. If it was called out correctly it would also need define the point that the diameter is derived at. Link to comment Share on other sites More sharing options...
[Mi...] Posted September 18, 2020 Author Share Posted September 18, 2020 Bingo, thanks for all the help. I ended up recalling the 4 cylinders as a circle, recalled the position and added the Caliper Min/Min distance in the X direction as the Diameter formula. I hope that was the right way 😕Screenshot (7).png Link to comment Share on other sites More sharing options...
[Ri...] Posted September 18, 2020 Share Posted September 18, 2020 There are a lot of different ways to skin the kitten. A lot of it depends on the tolerance. You could have just directly measured it with points that self-centered into the bottom of the valley. Link to comment Share on other sites More sharing options...
[Da...] Posted September 18, 2020 Share Posted September 18, 2020 Please sign in to view this quote. You also could have used formulas to control that probing point to the center line of the circles. But if your question is measured right per GD&T or GPS then the answer is "not defined" So you are differently not wrong. Link to comment Share on other sites More sharing options...
[SH...] Posted September 20, 2020 Share Posted September 20, 2020 Please sign in to view this quote. That might be the functional requirements of the part. Link to comment Share on other sites More sharing options...
[SH...] Posted September 20, 2020 Share Posted September 20, 2020 Please sign in to view this quote. Why does your Y value shows 90,it should be zero?? Link to comment Share on other sites More sharing options...
[SH...] Posted September 20, 2020 Share Posted September 20, 2020 Please sign in to view this quote. How does it crack gdnt rules can you explain?? Which rule you are talking about?. I don't think it will be a rule number 1 and 2, so you are talking about either Taylor principle or the fundamental rule explain in the section 4 of y 14.5 2018. Link to comment Share on other sites More sharing options...
[Ma...] Posted September 20, 2020 Share Posted September 20, 2020 Please sign in to view this quote. Y value is representing depth value - look at XYZ arrow direction. Link to comment Share on other sites More sharing options...
[SH...] Posted September 20, 2020 Share Posted September 20, 2020 Please sign in to view this quote. IMG_20200920_205546.jpg Link to comment Share on other sites More sharing options...
[SH...] Posted September 21, 2020 Share Posted September 21, 2020 Please sign in to view this quote. How can I work with self centred probe?. This option is available for fixed head. Link to comment Share on other sites More sharing options...
[Da...] Posted September 22, 2020 Share Posted September 22, 2020 What is the tolerance on the derived circle ? ( diam., and loc. ?) Link to comment Share on other sites More sharing options...
[Da...] Posted September 22, 2020 Share Posted September 22, 2020 Please sign in to view this quote. I see you have 2019 version. I have no experience with it, but try to play around with recalling 4 cylinders into "parallel cylinder" (AFC, I think it's in the Features -> Special Geometries) Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in