[Me...] Posted September 24, 2020 Share Posted September 24, 2020 For the life of me I can't remember how to achieve the tangent line to get the 30 degree dimension... Can someone refresh my memory? Please & Thank You! Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/ Share on other sites More sharing options...
[SH...] Posted September 24, 2020 Share Posted September 24, 2020 Using the curve take the maximum point then created 3D line from Centre to that point ,same for the other point. Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/#findComment-76226 Share on other sites More sharing options...
[Me...] Posted September 24, 2020 Author Share Posted September 24, 2020 Thanks man! Worked perfect! Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/#findComment-76228 Share on other sites More sharing options...
[Ja...] Posted September 24, 2020 Share Posted September 24, 2020 If you create a circle on the center of the part, and a circle on the end of the slot, you can use "construct - Tangents". Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/#findComment-76230 Share on other sites More sharing options...
[Ma...] Posted September 24, 2020 Share Posted September 24, 2020 Please sign in to view this quote. With this approach he won't get real tangent point. I think better use small section of points to create circle, then tangent. Bigger angle will increase deviation. Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/#findComment-76232 Share on other sites More sharing options...
[Me...] Posted September 24, 2020 Author Share Posted September 24, 2020 Please sign in to view this quote. I can't get it to work using this method. Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/#findComment-76234 Share on other sites More sharing options...
[SH...] Posted September 24, 2020 Share Posted September 24, 2020 Please sign in to view this quote. Mathematically speaking, specifically to op's drawing maximum point and tangent point coincide. Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/#findComment-76236 Share on other sites More sharing options...
[Jo...] Posted September 24, 2020 Share Posted September 24, 2020 Please sign in to view this quote. I can't break in right now to proof this, but pretty sure it even works with a point in the center, and use a circle from slot end. IDK if they need to lie in same plane for the calculation. Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/#findComment-76238 Share on other sites More sharing options...
[Ma...] Posted September 24, 2020 Share Posted September 24, 2020 I would try to create circle from end of curve of slot, then create theoretical point with coords to center point. Then construct tangent point<->circle from slot. Same for oposite side of same slot, then you can measure angle. Theoretical point can be also recalled from element which defines center point. Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/#findComment-76240 Share on other sites More sharing options...
[Me...] Posted September 24, 2020 Author Share Posted September 24, 2020 Please sign in to view this quote. There was a difference using the maximum point compared to the tangent point, I think the tangent point/line creation might be more accurate. I got a difference of 0.3°... 28.7 with the max/min point for curve & 30.01 with the tangent line creation. Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/#findComment-76242 Share on other sites More sharing options...
[Me...] Posted September 24, 2020 Author Share Posted September 24, 2020 Please sign in to view this quote. Nope. Please sign in to view this quote. Yep. You could use maximum/minimum point to greater accuracy if you created 15 degree alignments to match the basic angle and got the max/min from that. Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/#findComment-76244 Share on other sites More sharing options...
[SH...] Posted September 24, 2020 Share Posted September 24, 2020 Please sign in to view this quote. Ok, anyway you got the solution. Usually the tangent point will not be the maximum point. Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/#findComment-76246 Share on other sites More sharing options...
[He...] Posted September 25, 2020 Share Posted September 25, 2020 I do it like that! Measure the circle and use the formula to calculate the theoretical point. Then a plumb line to the center. Link to comment https://qualityforum.zeiss.com/topic/14516-circletangent-line-creation/#findComment-76248 Share on other sites More sharing options...
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