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How to built Octagonal Shape

Posted Mar 21, 2021, 3:14 a.m. EDT Electromagnetics, Electromagnetic Heating, RF & Microwave Engineering Version 5.6 4 Replies

Ramadhan Destanto
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I'm using COMSOL 5.6 version. I want to built octagonal shape for microwave heating cavity. Please guide me with necessary step. Thank you very much.

4 Replies Last Post Mar 22, 2021, 5:31 a.m. EDT
Jeff Hiller COMSOL Employee

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Posted: 3 years ago Mar 21, 2021, 11:16 a.m. EDT

Hello Ramaadhan,

Search the Forum for "hexagon" and you'll find your answer.

Best,

Jeff

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Jeff Hiller
Hello Ramaadhan, Search the Forum for "hexagon" and you'll find your answer. Best, Jeff
Robert Koslover Certified Consultant
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Posted: 3 years ago Mar 21, 2021, 11:36 a.m. EDT
Updated: 3 years ago Mar 21, 2021, 11:36 a.m. EDT

Here's a quick way: 1. Create a square, centered at the origin. 2. Create another square, also centered at the origin, but under "Rotation Angle," enter 45 (for its rotation in degrees). 3. Under Booleans and Partitions, choose Intersection and create the intersection of these two squares.
And now you have an octagon. Easy! You can extrude it, if you want a 3D structure.

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
Here's a quick way: 1. Create a square, centered at the origin. 2. Create another square, also centered at the origin, but under "Rotation Angle," enter 45 (for its rotation in degrees). 3. Under Booleans and Partitions, choose Intersection and create the intersection of these two squares. And now you have an octagon. Easy! You can extrude it, if you want a 3D structure.
Robert Koslover Certified Consultant
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Posted: 3 years ago Mar 21, 2021, 11:47 a.m. EDT

And here's yet another quick way! 1. Create a unit (that's the default) square, centered at the origin. 2. Choose Chamfer, and select all four corners. 3. Under "Distance from vertex, enter 1-1/sqrt(2). Click "build selected." And now you have an octagon. Easy!

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
And here's yet *another* quick way! 1. Create a unit (that's the default) square, centered at the origin. 2. Choose Chamfer, and select all four corners. 3. Under "Distance from vertex, enter 1-1/sqrt(2). Click "build selected." And now you have an octagon. Easy!
Ramadhan Destanto
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Posted: 3 years ago Mar 22, 2021, 5:31 a.m. EDT

Thank you for your anwers.

Thank you for your anwers.

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