Fans in + Pics
that shroud would go nice with the fans I'm getting from the group buy at www.jusnesmodified.com
There are probably more people on here that do metal fab, but if I were looking for someone i would PM zapster, he just got a new tig welder, so he must be into it.
If you know anyone into injection mold making, it would be interesting to see what they would have to say about the making of a whole shroud assembly.
If you know anyone into injection mold making, it would be interesting to see what they would have to say about the making of a whole shroud assembly.
That's a nice rig for holding the fans in place.
On a/an (off topic) note though, with a little humor...
Speaking from personal experience?
On a/an (off topic) note though, with a little humor...
Originally Posted by KC-10 FE
531 SQ/FT!!!
The freaking cells in the Ft Dix Federal Pen are 540 sq/ft. I didn't know KA was that bad. How much is your rent?
The freaking cells in the Ft Dix Federal Pen are 540 sq/ft. I didn't know KA was that bad. How much is your rent?
Originally Posted by c0ckac0la
I'd pay $60-75 for the shroud...Just a thought of what it may cost for materials and time. Mostly because I don't know how to weld...I hate myself....
You really don't need to weld anything. The 3/8 pieces I put on could easily be drilled and tapped and a bolt or so put into them to hold them. More than likely whereever you would go to have the plate sheared and bent, they would be able to weld the tabs on. If you were to cut the thing out yourself, you would probably be right in the ballpark of where you want to be pricewise.
Cutting them isn't bad, just takes a little time and a couple of c clamps.
if I can do it you can.
Cutting them isn't bad, just takes a little time and a couple of c clamps.
if I can do it you can.
Nice layout. It looks very similar to the product that Perma-Cool offers for the full size trucks.
A few thoughts on some of the earlier comments:
I feel the reason you thought you needed thicker material is because there is no support in the top to bottom direction. If you had return bends on the left and right sides heading towards or away from the rad, things would stiffen up quite a bit.
Stainless, or any type of steel for that matter, IMO, would be a big no-no. Mainly because of weight. The mount tabs that are molded into the tanks are engineered to support a certain amount of weight. Too much and I think the tanks would fail after time. We're pushing it by hanging fans off of the tanks to begin with.
Someone had also mentioned a molded plastic design, with the fans integrated with the shroud. This would be the best case scenario for performance and weight, but tooling and production costs would shoot that idea down in a heartbeat. An injection mold of that size, even machined overseas, would be upwards of $25-35K. Plus, most mold shops wouldn't even touch it without a commitment of a few thousand pieces minimum. Rotational molds would be an option, but it's still going to run around $8-10K for the machining work before a single part is made.
Lastly, the fan to core distance is very important. On paper, the larger the distance, the better performance you will eek out of the fans. By pulling the fans away and sealing the sides, you will utilize more of the fin surface area by creating a negative pressure in the shroud. (Instead of the fin area directly in front of the fans providing the cooling, the incoming air will be more evenly distributed across the entire core.)
As for providing a mass produced assembly - I'm not sure how far I can go until this post becomes "illegal"
, but I currently have a shroud in prototype with my sheet-metal supplier. Once I verify that it fits, I'd have no problem providing it for others. I hope to have the first piece from the shop by the end of this week, early next week at the latest. (BTW - My gallery has the final layout pic in case anyone is interested in the way I attacked this.)
I'll be sure to create my own thread instead of barging in on someone else's once things are ready.
E...
A few thoughts on some of the earlier comments:
I feel the reason you thought you needed thicker material is because there is no support in the top to bottom direction. If you had return bends on the left and right sides heading towards or away from the rad, things would stiffen up quite a bit.
Stainless, or any type of steel for that matter, IMO, would be a big no-no. Mainly because of weight. The mount tabs that are molded into the tanks are engineered to support a certain amount of weight. Too much and I think the tanks would fail after time. We're pushing it by hanging fans off of the tanks to begin with.
Someone had also mentioned a molded plastic design, with the fans integrated with the shroud. This would be the best case scenario for performance and weight, but tooling and production costs would shoot that idea down in a heartbeat. An injection mold of that size, even machined overseas, would be upwards of $25-35K. Plus, most mold shops wouldn't even touch it without a commitment of a few thousand pieces minimum. Rotational molds would be an option, but it's still going to run around $8-10K for the machining work before a single part is made.
Lastly, the fan to core distance is very important. On paper, the larger the distance, the better performance you will eek out of the fans. By pulling the fans away and sealing the sides, you will utilize more of the fin surface area by creating a negative pressure in the shroud. (Instead of the fin area directly in front of the fans providing the cooling, the incoming air will be more evenly distributed across the entire core.)
As for providing a mass produced assembly - I'm not sure how far I can go until this post becomes "illegal"
, but I currently have a shroud in prototype with my sheet-metal supplier. Once I verify that it fits, I'd have no problem providing it for others. I hope to have the first piece from the shop by the end of this week, early next week at the latest. (BTW - My gallery has the final layout pic in case anyone is interested in the way I attacked this.)I'll be sure to create my own thread instead of barging in on someone else's once things are ready.
E...
Last edited by ericd; Jun 13, 2006 at 11:24 PM.
Eric,
I recall seeing the CAD design posted in another thread. Are you any closer to the final design/product. Second, have you any pictures of said design installed?
Oh yeah, *cough* mark me down for 1 *cough* *cough*
I recall seeing the CAD design posted in another thread. Are you any closer to the final design/product. Second, have you any pictures of said design installed?
Oh yeah, *cough* mark me down for 1 *cough* *cough*
Originally Posted by c0ckac0la
Eric,
I recall seeing the CAD design posted in another thread. Are you any closer to the final design/product. Second, have you any pictures of said design installed?
Oh yeah, *cough* mark me down for 1 *cough* *cough*
I recall seeing the CAD design posted in another thread. Are you any closer to the final design/product. Second, have you any pictures of said design installed?
Oh yeah, *cough* mark me down for 1 *cough* *cough*

Pics will be posted once it's complete.
E...
Originally Posted by ericd
First sample is being produced as we speak. I should have it in my hands by the end of this week, early next week. Since I'm pretty sure it'll be a freebie, I hate to pressure the guy on time. 
Pics will be posted once it's complete.
E...

Pics will be posted once it's complete.
E...



