Quote:
Originally posted by Cathar
The impingement cup design is hard to get right. As I stated elsewhere, it's hard to totally screw it up, but getting even what seems like minor things wrong can result in 3, 4, or even 5C worse temperatures than what's really achievable with it. Everything has to be in balance, or performance rapidly falls away from the design's high-point.
The fin design is more tolerant.
As a starting hint, look at the amount of copper between the cups. How wide is it? How does that compare to your finned attempt?
|
as you can see some of the cups have more copper between them than others. I had planned to use a 3.5mm drill for each cup but as they are not placed to well i went with 3mm. i could use the 3.5mm in some places to try an make the cups walls thinner.
with the 3.5mm drill it would of left 0.5mm between each cup.
also i was going to make the screw holes in the polycarb top a bit bigger so i can position the tubes better in the cups.
It restrics the flow about 50% more than the fin style block.
i only did a quick lap so i need to make sure it's flat too.
i am pleased with the actual block it self not bad for a first go. I usualy make a few mistakes and learn from them.
the hardest part is punching the template and making sure my drill press is alligned over the punch mark. once that is good the rest is easy.
next time i will get the jet holes wright.