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Draw Circle of Specific Size Circumference Through 2 Points
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* May 05, 2020, 11:20:36 AM
I am trying to draw a circle of a specific size whose circumference travels through 2 defined points. The only thing I have found is a circle whose circumference travels through 2 points and the diameter is determined by the distance between the points.

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May 05, 2020, 11:42:59 AM
#1
I am trying to draw a circle of a specific size whose circumference travels through 2 defined points. The only thing I have found is a circle whose circumference travels through 2 points and the diameter is determined by the distance between the points.

Hi Ranger_Rick,

this question is probably better asked under the Problems section of the forum. 
I'm sure someone will answer you, but it might be spotted faster under that heading.

Good luck!

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Regards Tim

You can design without engineering, but you cannot engineer without design.
Using Win 10 with Designer 2017-2020 and TurboCAD Pro. Plat. 2018-2020 + Lightworks (64-bit versions) + AnimationLab 5.2.
Windows 10 Pro (1909) 64-bit


May 05, 2020, 12:28:55 PM
#2
If you have Platinum version you will find Circle Tan to Entities tool. Just turn on the Through Point option for the first two points and then define the radius/diameter.


* May 05, 2020, 02:16:56 PM
#3
If you have Platinum version you will find Circle Tan to Entities tool. Just turn on the Through Point option for the first two points and then define the radius/diameter.

"…Circle/Ellipse / Tangent to Entities" is found in all editions.

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John R.

V17—V21, 2015—2020
Designer, Deluxe, (Basic, Expert, Professional), Platinum
RedSDK enabled
Windows 10 Pro (1909), 64-bit


May 05, 2020, 05:36:58 PM
#4
I am trying to draw a circle of a specific size whose circumference travels through 2 defined points. The only thing I have found is a circle whose circumference travels through 2 points and the diameter is determined by the distance between the points.

I often do it the old-fashioned way.  Because I forget all the myriad of Tools that TurboCAD has.

I:
>Insert 2 Construction Circles, initially snapping their center-points at what you termed "[the] 2 defined points".  Those Construction Circles having the radius of what I want my eventual "specific size" Circle to be.
>Insert the desired Circle, Intersection_Snapping its center--point to the intersection of those two Construction Circles; then Center-Snapping to one of those Construction Circles.

Note:  The above does not necessarily result in tangency; you did not specify that tangency was a requirement.

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Alvin Gregorio
Intermittent TurboCAD user since yr. 2000 (ver6.5).  No formal CAD Training.
---TurboCAD: V21PP; V20.2PP; V19DL; V11.2Pro; Windows-7-Pro/64-bit; Intel-Core-i3 CPU; 2.27ghz; 4GB RAM; Intel HD Graphics (CPU based)


* May 06, 2020, 12:20:09 AM
#5
That is how I have always approached this problem too Alvin. Unless I want the circle to be tangent to 2 entities  but then I wouldn't know the radius

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Nikki
TC20 platinum
TC 2015 platinum
TC 2017 with lightworks


* May 06, 2020, 03:26:28 AM
#6
Thanks all. Alvin, goes to show when you have a problem go back to your basic geometry.

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