Chief Delphi - pneumatic tubing swelling

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Pneumatics (http://www.chiefdelphi.com/forums/forumdisplay.php?f=54)

- - pneumatic tubing swelling (http://www.chiefdelphi.com/forums/showthread.php?t=133653)

MrForbes

29-01-2015 13:54

Re: pneumatic tubing swelling

Quote:

Originally Posted by Batterink (Post 1435680)

We'll see about mounting a fan to cool it this evening.

Thanks everyone.

You're welcome!

You don't need to attach the fan to the compressor itself. It would be better to mount the fan next to, or over, the compressor so it blows air across the compressor head (the part with cooling fins on it). You can mount the fan several inches away, and it will still work well to keep it cool.

Batterink

29-01-2015 16:44

Re: pneumatic tubing swelling

We figured out that it's the heat issue. We're going to set up a fan, and add some more tanks (likely).

Thanks for the help guys and gals.

notmattlythgoe

05-02-2015 09:51

Re: pneumatic tubing swelling

Quote:

Originally Posted by Ronnie314 (Post 1435681)

Would you mind PM me a picture of how you attacked the fan to the compressor? We are just using zip ties at the moment. The fan keeps the compressor WAY cooler but worried about the zip ties possibly being melted.
-Ronnie

Here is a picture of how we mounted the fan last year.

https://drive.google.com/file/d/0B6s...ew?usp=sharing

MrForbes

05-02-2015 09:54

Re: pneumatic tubing swelling

1 Attachment(s)

One of our students brought in a COTS computer fan, with a built in mounting bracket, it seems to work ok. We don't have a lot of pneumatics on our robot this year, so it won't be running the compressor often.

Jon Stratis

05-02-2015 10:49

Re: pneumatic tubing swelling

Quote:

Originally Posted by MrForbes (Post 1438676)

Be careful with this... R18 is very specific, and there was a relevant Q&A.

https://frc-qa.usfirst.org/Question/...-rather-confus

The way I read Q &A 142, you can only use a COTS Computer fan is it is part of a computing device on the robot... I don't think pulling a fan out of a computer and using only the fan is legal.

MrForbes

05-02-2015 10:54

Re: pneumatic tubing swelling

Thanks....the fan is part of a COTS computing device, but we did not install the computing device on the robot. The wording is still ambiguous, since it doesn't specifically state that the COTS computing device (that the fan was removed from) must also be installed on the robot. I guess we'll see about changing the fan.

kmusa

05-02-2015 15:37

Re: pneumatic tubing swelling

Quote:

Originally Posted by Jon Stratis (Post 1435700)

...It also comes with a steel mesh leader hose - this is considered part of the compressor (per last year's Q &A, at least... I haven't seen it asked this year yet), and can be used to help ensure the tubing is well away from the hot parts of the compressor!

Al chimed in with his opinion earlier this year (I know, that doesn't make it official :) )

Quote:

Originally Posted by Al Skierkiewicz (Post 1427238)

As a caveat, the Viair above comes with a stainless steel hose that is required for operation by the manufacturer. The hose helps dissipate the heat generated by the compressor and compressed air.

but, at last check, hasn't been posted to the Q&A yet.

(We've used it in the past, but don't expect to this year - our pneumatic load isn't that high.)

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