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Finding a point on a circle

Posted 3 years ago

Hello everyone! I'm designing a product that I'm drawing technical drawings for and I'm having trouble with some of the geometry. I'd really appreciate any insights or help or links to any useful info.

So my question is: I've got two circles, of the same diameter and I'm wanting to draw a line connecting them.

I want to put the line touching the edge like in the picture (although this isn't exactly right but just to show you what I'm hoping for):

I'm wondering how I can calculate the exact point of the edge that is the most outermost point of the circle that the line could touch.

I've tried lots of things but can't seem to figure out how to calculate this. I'd really appreciate any help!!enter image description here

POSTED BY: Claire M
6 Replies
POSTED BY: Hans Dolhaine
POSTED BY: Hans Dolhaine
Posted 3 years ago

Thank you Tomas! That's great. Thank you for translating it.
All the best.

POSTED BY: Claire M

A few years ago I wrote this notebook which you may find helpful. It is in Spanish, but I have translated the relevant part for your question, if you go to button 3.

POSTED BY: Tomas Garza
Posted 3 years ago

Thanks J.M. That's really interesting and helpful! I appreciate it :) All the best!

POSTED BY: Claire M
Posted 3 years ago
POSTED BY: J. M.
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