Cheap and simple 120mm duct.

peterson · Post by **peterson** » Thu Sep 29, 2005 5:24 am

Don't know if it's common knowledge and/or completely useless.
I just thought i'd mention it.

A CD/DVD is 120mm in diameter right? And when buying spindles of 50-100 pcs, they come in a package that can perhaps be used as a duct for 120mm fans.
A 100pcs spindle gives ~150mm long duct. Easy to cut as well

Let me know if it's useful

hyperq · Post by **hyperq** » Thu Sep 29, 2005 5:34 am

It is a brilliant idea! I like it.

peterson · Post by **peterson** » Thu Sep 29, 2005 5:38 am

Thanks. I just checked and a 3,5" HDD fits too. A bit more work requiered to mount it though.

lucienrau · Post by **lucienrau** » Thu Sep 29, 2005 7:36 am

Great tip. It's one of those things that make you go DOH because it's smart and simple at the same time. I've been using cds for a template for 120mm fans for years but I've never put 2&2 together. I think the 100 cd ones would be perfect for most situations as you can cut an angle on both ends and you're done.

ashtray_head · Post by **ashtray_head** » Thu Sep 29, 2005 11:05 pm

great idea.... the simple ones are always the best!

vine-au · Post by **vine-au** » Sun Oct 02, 2005 9:31 pm

*DOH* <slaps forehead> such a great idea

iSix · Post by **iSix** » Mon Oct 03, 2005 3:30 am

I've been using them and coke bottles for a while, although recently we had some 5" extractor fans fittined in the house and the flexible ducting from them is a perfect size

Myth! · Post by **Myth!** » Mon Oct 03, 2005 11:14 am

i use overhead transparency acetate. u can make any size cylinder or even make one/both ends rectangular. have just made a fresh air duct from 5 1/4" bay to new zalman firgure of eight heatpipe thingy then straight out of 120mm rear fan. who needs BTX lol!

BrianE · Post by **BrianE** » Tue Oct 04, 2005 11:56 am

Myth! wrote:i use overhead transparency acetate. u can make any size cylinder or even make one/both ends rectangular. have just made a fresh air duct from 5 1/4" bay to new zalman firgure of eight heatpipe thingy then straight out of 120mm rear fan. who needs BTX lol!

Transparency sheets eh? Interesting.... I wouldn't have thought they would be strong enough, but I'll have to check them out now. I guess you can always glue two sheets together too.

Some good ideas here - I love threads like this.

Myth! · Post by **Myth!** » Tue Oct 04, 2005 5:22 pm

it depends on how they are supported i guess, my previous design just had a sheet rolled into a cylinder of the right diameter to fit on a zalman 7000cu and it pointed straight out of the case (297mm), the end of this indeed tried to collapse but I had some UV braid stuff so I made a loop and stuck this inside the entrance and it held the circle shape. Got me through a tough patch this summer (though british summers aren't much to write home about

)

i wonder if anyone has those in-wall vacuum cleaner sockets where u plug in the tube only and it sucks all the dirt into an outside bin. Can u plug in a PC?

justblair · Post by **justblair** » Tue Oct 04, 2005 10:41 pm

Such good ideas deserve stickys.

Anyone care to post a photo?

Myth! · Post by **Myth!** » Wed Oct 05, 2005 12:14 pm

i guess photos need hosting elsewhere first then use that {img}url{img} thingy. Once my DSL arrives I should have webspace