Pass Aleph style heatsinks

[mbrennwa]

Here's a photo I got from the factory. Looks good to me, although I believe it is not 100% identical to my drawing in some small details. Let's see when I get them.

 

[JeffYoung]

I hope they're going to round off the ends of the fins a bit. Those look lethal!

Are they machined instead of extruded?

 

[mbrennwa]

I have now received the heatsinks. They sure look cool! I attached a photo showing a quick mockup of how I intend to build my Aleph J.

I can't tell if they were machined or extruded since I have no clue what look out for.

I have not yet looked at all heatsinks, as they came in four separate boxes, and I have only opened one box so far. They did not round the fins, but I wouldn't call them "lethal". But Jeff is right that the edges of the fins (and some other details) or not perfectly identical to my drawing. Also, two heatsinks had small dents on the edges. I can't tell if this happened in the factory, or during shipping. I asked the factory about this; let's see what they say.

 

[mordikai]

I think they look pretty nice. I'm a little concerned about dents though. What did they come out to price wise?

 

[mordikai]

What amp are you gonna put in there? I've not decided but am leaning toward a vfet variety of sorts.

 

[JeffYoung]

I was thinking it's a natural shape for one of Juma's Cubie 3s....

 

[mbrennwa]

I am planning to make a Babelfish J.

In the meantime I figured out from the Chinese factory that the heatsinks were machined, although they indicated an extrusion on the quote. I am discussing about the issue with the dents on some of the heatsinks with the factory. Let's see how this works out -- keep your fingers crossed!

 

[mbrennwa]

Update: after exchanging 70 (!) emails with the factory, they said they would make the heatsinks again. This time by extrusion, as it should have been done from the beginning. And without the dents.

Keep your fingers crossed!

 

[JeffYoung]

 

[mordikai]

good job! Sorry for the hassle.

 

[2 picoDumbs]

These look great.
Seriously tempted.

 

[mbrennwa]

I am still waiting for the factory to deliver the second batch.

 

[JeffYoung]

You know you want some, 2pico....

 

[2 picoDumbs]

You know you want some, 2pico....

I know.
I want them real bad.
Hahahaha

 

[mbrennwa]

How bad is it? How many?

 

[mbrennwa]

The factory sent a teaser photo from the new batch.

(Muahahahahhhhaaaaa!!!)

 

[carsten.witt]

a little bit different at the end of the fins :-(

 

[mbrennwa]

^Yep. The new batch should be closer to the drawing in the first post. I believe I prefer the looks of this. Which one do you prefer?

Carsten, 2 picDumbs, anyone: are you interested in either the old or the new batch?

Once I have the second batch in my hands I will come back with better photos and a suggestion about the pricing.

 

[JeffYoung]

I much prefer the new one. It's spot on.

Cheers,
Jeff.

 

[mordikai]

I prefer the new ones for the original 8 I ordered. If you end up with extras of the first ones they made let me know.
thanks!