any composite shroud makers out there?
 

come on in.... :)

http://3rotor.homelinux.com/SCM-BB/g...4545.sized.jpg
http://3rotor.homelinux.com/SCM-BB/g...4549.sized.jpg
http://3rotor.homelinux.com/SCM-BB/g...4552.sized.jpg
http://3rotor.homelinux.com/SCM-BB/g...4554.sized.jpg

materials:
laxan frames,
polyester resin,
wife's stockings (old ones)

TCO = about $7 + work.

result = superior custom fit aerodynamics, where it matters most.

very important.... it must be old stockings ..... the consequences for not adhering to this simple rule... oh boy!

:D Nice, used cardboard box + mastic + 2x 380cfm fans on my rad, works pretty good ;)

But an elegant solution especially for any1 considering retail.

]JR[

Nice.

I haven't played long enough with resin: I would have used a solid shape (styrofoam), cut/trim it to shape, then use fiberglass and resin for the construction.

Does using a nylon give you enough rigidity, or would dropping it accidentally (3 feet) destroy it?

i made one with a stocking and fiberglass once, it was pretty cool.

I'm using 2 layers of stocking, pretty strong, it is not indestructible though, so it will brake, but you are going to have to through it a bit harder than that on a cold frosty day, to get it to shatter...

indeed it is not the easiest of things to do, I am somewhat of an old hand at it (this resin thing, that is....) , and even I had a boobo with he first one I made last week... ( been a while) :)

the one therein those pics, is number 2 and number 3 is for a 120mm fan on the same oil-cooler. it's right here on my desk, ready to get drilled and hole'd for the fan... WANA see???? :D

Oh yes, please:cool:

Great work with resin! Looks pro IMHO:)

Cheers!

wow very nice. i need to construct something like that but in a circular shape to use with my blower I got from a hand blower. i still don't know what material to use yet, maybe some fiber glass, or maybe i will go you way :p

Hmm Very nice :) I may have to buy some resin I think :)

http://3rotor.homelinux.com/SCM-BB/g...4627.sized.jpg
http://3rotor.homelinux.com/SCM-BB/g...4629.sized.jpg
http://3rotor.homelinux.com/SCM-BB/g...4631.sized.jpg


the beauty of this is, your imagination is the limit to how fancy a thing you want to make.... well ok almost.. :)

but as one can see... virtually any shape can be made and the planes in which the fans sit towards the radiator can be adjusted just as easy...

this one was particularly difficult, due to the large fan and relatively narrow radiator flange, nun the less it came out really nice, and oh the silence from a 120mil on 7 volt and 3º down on nominal temp... I'd call that a couple o hours well wasted.

you guys want me to do a little step by step thingy.... I did not take pictures of it while I made these two, but I might want to invest in a Heater core again, and will be making one in this fashion for said core... :) this oil cooler, though nice and slim, just don't have the grunt I'm looking for in a radiator...

I'm definitely interested in seeing a howto on this.

Very nice work.

A step by step would be nice for a beginner like me:D

Me too :dome: ...

#rotor - PM

hmmm...sounds like a good idea for a pro-geeks article eh?? lol

I agree, the resin looks a little better than my standard cardboard&duct tape work!

I find cardboard resonates too much, it's like a bloody PA system in my room!...

OK, this is not resin, but it's simple and makes for a great result:

http://pic4.picturetrail.com/VOL59/7...7/23527178.jpg

http://pic4.picturetrail.com/VOL59/7...7/23527165.jpg

http://pic4.picturetrail.com/VOL59/7...7/23527132.jpg

http://pic4.picturetrail.com/VOL59/7...7/23527110.jpg

The alu band was a 3cm wide, 2mm thick strip of anodysed aluminium bought at B&Q (hardware store in the UK) for a few quid. I covered it in paper masking tape on both sides, to protect it from scratches while working on it. I bent the strip around the fan (you can do that with an alu fan; they're quite sturdy, but else just use a template, say four nails/screws in a piece of wood) and cut it to size. I then cut a small bit of the remainder and drilled holes to fit the (countersunk) M3 x 8mm screws which hold it together. The self-adhesive draught excluder was again from B&Q, and stuck on the inside of the shroud (on the fan side) while a square of draught excluder was stuck to the rad, to correspond with where the edges of the shroud would meet the rad surface. Presto! :D

I'm still busy with it, but here's something to get the imaginations going so long...

http://3rotor.homelinux.com/SCM-BB/g...4654.sized.jpg

Joe will be getting the full version hereof, soon as it's completed,

have fun, and please!!!!! speak your minds on it... :) I'm all ears.

Yep I cant wait to get that posted... I am all about cool/ cheap/ easy yet hella functional things like this. Always happy to see something "new".

Lookin real good this side :)

http://3rotor.homelinux.com/SCM-BB/g...4747.sized.jpg

Sweet!, I was'nt too keen on the 'oil cooler120mm fan' one because of the Norra Batty effect (the wrinkles!) but then again it looks like it was a tight fit [groan]. I realy like the idea of being able to angle it to direct the flow in the optimal direction without the logistic knightmare of working out size/shape to cut (or just trying it 'by eye' in cardboard 15 times!! :D ). Have you tried one with fishnet stockings yet :p ...

fishnet-stockings....... :drool:

ya, I did not like them wrinkles much either, but as you pointed, it was a peculiar fit. this heater core one is perfect in every sense of the technique, pardon me for saying so myself :D

I like Your design nexxo simple and to the point, I think I may try that, If I can find the aluminum in Hesperia/Victorville area cheaply enough, It's much better than building one out of plastic. Are You sure It wouldn't work on a Plastic fan?
As all My Sunon 120mm fans are plastic. I'd hate to get a 120 just for that, But like You said I could make a mock-up or model out of several layers or so of plywood of course.:cool: Although instead of 3cm wide, I'll make mine 5cm (2" aprox.), The thickness of 2mm is fine though..:D Of course finding Foam Weather Stripping here in the US is easy, As we here have a lot of fairly old houses that aren't insulated enough, I should know, I've owned one.
:drool: :drool: :drool: :drool: :drool:

Make me some duct work for my car :)