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Drilling my case window for fan

post #1 of 7
Thread Starter 
Hey, I'm looking to drill my case window to fix a fan on so that I can have another air intake.

I was wondering, what is the best pattern design for the best air suction and noise levels?

Thanks a lot
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post #2 of 7
Round one?
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post #3 of 7
You drilling into metal or acrylic?
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post #4 of 7
Thread Starter 
its acrylic. I was considering just drilling a pattern of holes but I was wondering if there was a specific pattern that would maximise airflow but with low noise level. cheers
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post #5 of 7
Quote:
Originally Posted by warnesey333 View Post
its acrylic. I was considering just drilling a pattern of holes but I was wondering if there was a specific pattern that would maximise airflow but with low noise level. cheers
A hole cut out completely would be the best as it would maximize the surface area.
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post #6 of 7
Quote:
Originally Posted by warnesey333 View Post
its acrylic. I was considering just drilling a pattern of holes but I was wondering if there was a specific pattern that would maximise airflow but with low noise level. cheers

I made a fan plate for my project. You can see it here . I also have a picture of the tool that i used for the job .Although I didnt really consider airflow or noise. This was the maximum I could do without cracking the acrylic.
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post #7 of 7
If you want to minimize flow noise through a hole, make it such that the length of the hole is about 6 times the diameter. However, assuming your acrylic isn't ridiculously thick, you would end up with several hundred 1/32" holes, which would still give you significant flow restriction. Just go with a hole the same size as the fan opening. Keep in mind that you probably want to put a grill of some sort over it, especially if you have small pets or children in your household.
    
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