BIM Coordinator Program (INT) April 22, 2024

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Modeling
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SOLVED!

Arc tangent to 2 circles with a specific radius

Anonymous
Not applicable
Drawing tangents are confusing! I need to draw an arc tangent to 2 circles and I want it to be a specific radius. Does Archicad do that?
1 ACCEPTED SOLUTION

Accepted Solutions
Solution
Lingwisyer
Guru
Just offset your existing two arcs / circles by the radius of your desired arc, then draw your new arc with a centre based on that intersection. AC does not allow you to offset with duplicate a circle, so you will need to duplicated it first before offsetting if you are using one.



Ling.

AC22-23 AUS 7000Help Those Help You - Add a Signature
Self-taught, bend it till it breaksCreating a Thread
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4 REPLIES 4
Barry Kelly
Moderator
No, you will need to work it out geometrically yourself.

It is harder to explain how to work it out than it is to do it.
I am sure it is out there in the world of Google somewhere.

If you don't know how to work it out, let me know and I will try to show you.

Barry.
One of the forum moderators.
Versions 6.5 to 27
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
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Solution
Lingwisyer
Guru
Just offset your existing two arcs / circles by the radius of your desired arc, then draw your new arc with a centre based on that intersection. AC does not allow you to offset with duplicate a circle, so you will need to duplicated it first before offsetting if you are using one.



Ling.

AC22-23 AUS 7000Help Those Help You - Add a Signature
Self-taught, bend it till it breaksCreating a Thread
Win11 | i9 10850K | 64GB | RX6600 Win10 | R5 2600 | 16GB | GTX1660
Eduardo Rolon
Moderator
This might help, though I have not used it i a long time.
Eduardo Rolón AIA NCARB
AC27 US/INT -> AC08

Macbook Pro M1 Max 64GB ram, OS X 10.XX latest
another Moderator

Anonymous
Not applicable
Like this?

Doug
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