circumference staying the same on shape change in a software???

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Hi mate, so could I do this my self in say Alibre? (is this what you used?)

also now that you have done that part can you alter it in sizes when ever you feel like it to get the circumfrence needed?

lol and sorry if you did that in Alibre could you show me how :-[ this is sending me potsy lol
 
Rhino3D will tell you the length of any curve. So, to get a teardrop or other shape sized properly:

1. Draw the shape.

2. Measure length with CAD.

3. Compare vs the desired circle circumference length.

4. Scale drawn shape to get to desired length.

Might take a couple of iterations, but ought to be straightforward.
 
Gentlemen,

This topic has been locked.

This topic fails to reflect this forum's vision; that is model engine building in a home shop environment. Due to the exercise in complex calculations, I am leaving this topic visible.

Regards,
wareagle
 
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