is the base of my block too thick?

jamicon · 09-01-2002, 06:35 AM

I recently got the copper for my block milled at a local CNC machiner. unfortunately the thickness i wanted for the block was not availiable, so i went for a thicker size. This has left my block with a 11mm thick base( 11mm of copper between the CPU and the bottom of the channel).

I am going to be cooling a p4 with it.

will it affect performance by having such a thick base, or should i get it made thiner. And if so, how?

here is a pic of the channel design (the block is the size of the P4 stock cooler)

thanks

Volenti · 09-01-2002, 08:19 AM

Woot! another aussie! /waves

yea for a p4 3-4mm is heaps, probably best to get the base machined thinner, trying anything else to thin it is only going to end in pain...

I mean it'll probably still perform allright as is, it's not like you'll be 20 degrees higher or anything, mabie 3 or 4 degrees higher worst case.

Either the milling machine or another one I can't recall the name of would be able to thin the base fairly easily.

Can O' Beans · 09-01-2002, 11:28 PM

Have the bottom machined or ground, OR just have them cut the channels even deeper.

jamicon · 09-02-2002, 03:17 AM

i think i might try it as it is, and if it has problems, i will get it machined lower.

thanks

Volenti · 09-02-2002, 03:20 AM

Quote:

Originally posted by Can O' Beans
OR just have them cut the channels even deeper.

/smacks forhead, why didn't I think of that?

good call,that's by far the best option

jamicon · 09-02-2002, 04:09 AM

hmmm, suppose it wont cost too much to get the channel milled deeper. I would have got it done in the first place, but my dad got the copper and got it milled while i was at school so i didnt know it would end up so thick

will it matter if the channels are alot thicker than the rest of the piping though the system?

i just realised, its actually only 7 mm thick base.

currently the Piping (electrical conduit, im going for the tidy look, very little actual hose) has a 123mm² area, and the waterblock channels are 132mm². if i got them deepened(so that the base is 4 mm) they would be 178mm² so the flow would be slow thru the block.

maybe if i got the channels milled deeper, and then put in copper turbulators ?

Can O' Beans · 09-02-2002, 04:23 AM

It would be a bit slower thru the block(at the same flow rate), but there would deffinately be less restriction thru the block as well, meaning more flow thru the system. You *might* get equal speed, or possibly higher, due to the less restriction/more flow. I'm not quite sure on that.

If the shop would do it, you could get them to add turbulators of some sort, perhaps by using a smaller bit & cutting shallow channels (like the Maze 3, i think??).

But if they have the choice between milling the channel, or just machining the base, they would most likely machine the base down as it would be easier.

Brad · 09-03-2002, 02:38 AM

just try it out, then remove 1mm of the base, and see what happens, then another 1mm, and so on, until you eventually get to your minimum temperature

jamicon · 09-03-2002, 06:41 AM

i like your idea of taking it down slowly brad, but that would cost me a heap to get done, as they would charge me for each time.

and for turbulators i was thinking along the lines of these type:

09-01-2002, 06:35 AM	#1
jamicon Cooling Neophyte Join Date: Aug 2002 Location: Australia Posts: 44	is the base of my block too thick? I recently got the copper for my block milled at a local CNC machiner. unfortunately the thickness i wanted for the block was not availiable, so i went for a thicker size. This has left my block with a 11mm thick base( 11mm of copper between the CPU and the bottom of the channel). I am going to be cooling a p4 with it. will it affect performance by having such a thick base, or should i get it made thiner. And if so, how? here is a pic of the channel design (the block is the size of the P4 stock cooler) thanks

09-01-2002, 08:19 AM	#2
Volenti Cooling Savant Join Date: Jan 2002 Location: in a nice cool spot Posts: 427	Woot! another aussie! /waves yea for a p4 3-4mm is heaps, probably best to get the base machined thinner, trying anything else to thin it is only going to end in pain... I mean it'll probably still perform allright as is, it's not like you'll be 20 degrees higher or anything, mabie 3 or 4 degrees higher worst case. Either the milling machine or another one I can't recall the name of would be able to thin the base fairly easily. __________________ feel free to icq/msn me, I'm always willing to toss around ideas. Last edited by Volenti; 09-01-2002 at 08:25 AM.

09-03-2002, 02:38 AM	#8
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	just try it out, then remove 1mm of the base, and see what happens, then another 1mm, and so on, until you eventually get to your minimum temperature __________________ 2x P3 1100's at 1400, Abit VP6, 2x Corsair 256mb PC150 sticks, 20gb 'cuda ATA-III, 2x 40gb 'cuda ATA-IV in raid 0. 20" Trinitron. No fans 2x 2400+ at 2288mhz (16.0 x 143), Iwill MPX2, 2x Kingmax PC-3200 256mb sticks, 4x 20gb 60gxp in Raid 5 on a Promise SX6000. Asus Ti4200 320/630. Cooled by Water

09-01-2002, 11:28 PM	#3
Can O' Beans Cooling Savant Join Date: Aug 2002 Location: Pa - USA Posts: 264	Have the bottom machined or ground, OR just have them cut the channels even deeper.

09-02-2002, 03:17 AM	#4
jamicon Cooling Neophyte Join Date: Aug 2002 Location: Australia Posts: 44	i think i might try it as it is, and if it has problems, i will get it machined lower. thanks

09-02-2002, 04:09 AM	#6
jamicon Cooling Neophyte Join Date: Aug 2002 Location: Australia Posts: 44	hmmm, suppose it wont cost too much to get the channel milled deeper. I would have got it done in the first place, but my dad got the copper and got it milled while i was at school so i didnt know it would end up so thick will it matter if the channels are alot thicker than the rest of the piping though the system? i just realised, its actually only 7 mm thick base. currently the Piping (electrical conduit, im going for the tidy look, very little actual hose) has a 123mm² area, and the waterblock channels are 132mm². if i got them deepened(so that the base is 4 mm) they would be 178mm² so the flow would be slow thru the block. maybe if i got the channels milled deeper, and then put in copper turbulators ?

09-02-2002, 04:23 AM	#7
Can O' Beans Cooling Savant Join Date: Aug 2002 Location: Pa - USA Posts: 264	It would be a bit slower thru the block(at the same flow rate), but there would deffinately be less restriction thru the block as well, meaning more flow thru the system. You might get equal speed, or possibly higher, due to the less restriction/more flow. I'm not quite sure on that. If the shop would do it, you could get them to add turbulators of some sort, perhaps by using a smaller bit & cutting shallow channels (like the Maze 3, i think??). But if they have the choice between milling the channel, or just machining the base, they would most likely machine the base down as it would be easier.

09-03-2002, 06:41 AM	#9
jamicon Cooling Neophyte Join Date: Aug 2002 Location: Australia Posts: 44	i like your idea of taking it down slowly brad, but that would cost me a heap to get done, as they would charge me for each time. and for turbulators i was thinking along the lines of these type:

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)