GrapeApe
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December 15, 2013, 04:34:43 AM |
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Yeah that was a good quick inexpensive find and perfect timing for me. On another note the prototype that Hands is making looks great I got a look at it earlier today and it seems like it should be a good alternative.
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PhDMiner
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December 15, 2013, 04:48:26 AM |
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Yeah that was a good quick inexpensive find and perfect timing for me. On another note the prototype that Hands is making looks great I got a look at it earlier today and it seems like it should be a good alternative.
You might win the auction yesterday as I did. :-) I won three more and already have two so total 5 chilis from Monday. All of backplates, collers, and chilis will arrive Monday!!
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Hands
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December 15, 2013, 02:07:19 PM |
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So this the rough draft design of what I am calling the Queso case (you know because chili Queso is the best!)... The case will be laser cut out of .177" (4.5m) acrylic and easily glued together. 120mm fan mounts to the side and blows air over the mosfets, you can run it in multiple directions based on what's best for your cooler (thank you GrapeApe for suggesting that it be able to be turned horizontal for big air coolers). And easy access to all the cables. The plan is that the back-plate will have 2mm of foam (cut out in the same shape as the plate it self to act as a bit of cushion. I've got to make 10 of these for myself, but once I figure out the effort, laser time & material costs involved I'd be happy to cut some out for others and flat-pack ship them to ya. Once I have a working prototype I'll snap some pics and have a better of idea of what it cost of others one some. ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FWfzp2cq.png&t=665&c=pgcMddQzDsT7aA)
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GrapeApe
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December 15, 2013, 03:15:49 PM |
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So this the rough draft design of what I am calling the Queso case (you know because chili Queso is the best!)... The case will be laser cut out of .177" (4.5m) acrylic and easily glued together. 120mm fan mounts to the side and blows air over the mosfets, you can run it in multiple directions based on what's best for your cooler (thank you GrapeApe for suggesting that it be able to be turned horizontal for big air coolers). And easy access to all the cables. The plan is that the back-plate will have 2mm of foam (cut out in the same shape as the plate it self to act as a bit of cushion. I've got to make 10 of these for myself, but once I figure out the effort, laser time & material costs involved I'd be happy to cut some out for others and flat-pack ship them to ya. Once I have a working prototype I'll snap some pics and have a better of idea of what it cost of others one some. ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FWfzp2cq.png&t=665&c=pgcMddQzDsT7aA) They look good Hands!! Definitely get in touch with me when you finalize design and cost. I like em...
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agibby5
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December 15, 2013, 03:28:14 PM |
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So this the rough draft design of what I am calling the Queso case (you know because chili Queso is the best!)... The case will be laser cut out of .177" (4.5m) acrylic and easily glued together. 120mm fan mounts to the side and blows air over the mosfets, you can run it in multiple directions based on what's best for your cooler (thank you GrapeApe for suggesting that it be able to be turned horizontal for big air coolers). And easy access to all the cables. The plan is that the back-plate will have 2mm of foam (cut out in the same shape as the plate it self to act as a bit of cushion. I've got to make 10 of these for myself, but once I figure out the effort, laser time & material costs involved I'd be happy to cut some out for others and flat-pack ship them to ya. Once I have a working prototype I'll snap some pics and have a better of idea of what it cost of others one some. ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FWfzp2cq.png&t=665&c=pgcMddQzDsT7aA) Can they be screwed together or must they be glued? How many Chilis can an enclosure hold?
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Hands
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December 15, 2013, 04:46:03 PM |
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Can they be screwed together or must they be glued? How many Chilis can an enclosure hold?
The design is all tabs and slots as such there aren't really any thing to screw into. (keep in mind the fan & chili board will be screwed on not glued down).. That would be weird :-P) I'm going to cut them to be pretty tight so you might be able to just pressure fit them. I suppose with a few strategically placed L brackets you could change it to screw together, but that's not in the design.. trying to keep it as simple as possible to make. And being acrylic, a bit of acrylic cement and it will practically (and in some cases actually) be a single piece of plastic. As for how many.. because I want to provide airflow to the mosfet's and people have soo many different cooling chooses the Queso holds 1 chili (two chili's in a small bowl like that would just be too hot :-P ). If there is enough interest, I could be convinced to design a mult-chili rig. Granted I have 10 chili's myself to setup.. I wanted something that if a chili has an issues can be worked on (away from the "rig") without taking everything else offline.
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daemonfox
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December 15, 2013, 07:43:17 PM |
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Can they be screwed together or must they be glued? How many Chilis can an enclosure hold?
The design is all tabs and slots as such there aren't really any thing to screw into. (keep in mind the fan & chili board will be screwed on not glued down).. That would be weird :-P) I'm going to cut them to be pretty tight so you might be able to just pressure fit them. I suppose with a few strategically placed L brackets you could change it to screw together, but that's not in the design.. trying to keep it as simple as possible to make. And being acrylic, a bit of acrylic cement and it will practically (and in some cases actually) be a single piece of plastic. As for how many.. because I want to provide airflow to the mosfet's and people have soo many different cooling chooses the Queso holds 1 chili (two chili's in a small bowl like that would just be too hot :-P ). If there is enough interest, I could be convinced to design a mult-chili rig. Granted I have 10 chili's myself to setup.. I wanted something that if a chili has an issues can be worked on (away from the "rig") without taking everything else offline. What is the estimated cost... really like this concept.
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GenTarkin
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December 16, 2013, 06:35:01 AM |
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can someone tell me which parts of the VRM are most important to cool w/ little heatsinks?
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ChipGeek
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December 16, 2013, 01:58:13 PM |
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can someone tell me which parts of the VRM are most important to cool w/ little heatsinks?
It's best to just add heatsinks to the back of the board. However, the parts you are cooling are the black plastic transistors between the large aluminum cylinders (the filter capacitors) and the large black cubes of metal (the inductors). The reason the back is better to cool than the parts directly is that the parts are mounted with a metal pad in the middle that is designed to conduct the heat into the board. On the other hand, the top of the part is plastic and does not conduct heat as well. Thus, cooling the back of the board is best. Also, when you add heatsinks on the top of the parts, you risk shorting out some of the other small capacitors near the devices you are cooling. To repeat: It is best to heatsink and cool the back of the board under the VRM, and NOT heatsink any of the individual parts.
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Hands
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December 16, 2013, 02:41:59 PM Last edit: December 16, 2013, 02:53:38 PM by Hands |
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What is the estimated cost... really like this concept.
I'm working on getting the first one cut out now.. I don't want to give a number until I can stick to it... But right now the cut files look like they will need about 2 ~ 2 1/2sf of acrylic per case and that's around $3.50 ~ $5.00 sf depending on color and supplier. Also, once I have final "v1" cut files done, I'll post them to github so that if anyone else have access to a laser and acrylic or has a way to make it better we can collaborate :-). --- Edit: Beyond the acrylic cost there is, setup time, laser run time, cleanup time and shipping to account for so its not straight material cost calculation... I won't know laser run time until I get a few cut and know how long it actually takes me and the machine to setup the cut, run the cut, inspect etc....
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GenTarkin
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December 16, 2013, 03:45:51 PM |
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can someone tell me which parts of the VRM are most important to cool w/ little heatsinks?
It's best to just add heatsinks to the back of the board. However, the parts you are cooling are the black plastic transistors between the large aluminum cylinders (the filter capacitors) and the large black cubes of metal (the inductors). The reason the back is better to cool than the parts directly is that the parts are mounted with a metal pad in the middle that is designed to conduct the heat into the board. On the other hand, the top of the part is plastic and does not conduct heat as well. Thus, cooling the back of the board is best. Also, when you add heatsinks on the top of the parts, you risk shorting out some of the other small capacitors near the devices you are cooling. To repeat: It is best to heatsink and cool the back of the board under the VRM, and NOT heatsink any of the individual parts. can you take a pic of what area on the back to add heatsinks to?
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MrTeal (OP)
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December 16, 2013, 04:03:12 PM |
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can someone tell me which parts of the VRM are most important to cool w/ little heatsinks?
It's best to just add heatsinks to the back of the board. However, the parts you are cooling are the black plastic transistors between the large aluminum cylinders (the filter capacitors) and the large black cubes of metal (the inductors). The reason the back is better to cool than the parts directly is that the parts are mounted with a metal pad in the middle that is designed to conduct the heat into the board. On the other hand, the top of the part is plastic and does not conduct heat as well. Thus, cooling the back of the board is best. Also, when you add heatsinks on the top of the parts, you risk shorting out some of the other small capacitors near the devices you are cooling. To repeat: It is best to heatsink and cool the back of the board under the VRM, and NOT heatsink any of the individual parts. can you take a pic of what area on the back to add heatsinks to? The copper around the fets is pretty efficient at transmitting heat, so using a bigger heatsink interface is always better than a small one since the thermal resistance of the solder mask and whatever adhesive you use is actually quite high. As a bonus, there's a couple areas that you can use to help cool the inductors if your HS is big enough to cover them. ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fi40.tinypic.com%2F6enrjc.jpg&t=665&c=uXBq6TM5t-OB5w)
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ipxtreme
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December 16, 2013, 04:40:39 PM |
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PhDminer, this is cool. Can you show us pics of it assembled? Where the parts go with pics?
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GenTarkin
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December 16, 2013, 05:29:50 PM |
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can someone tell me which parts of the VRM are most important to cool w/ little heatsinks?
It's best to just add heatsinks to the back of the board. However, the parts you are cooling are the black plastic transistors between the large aluminum cylinders (the filter capacitors) and the large black cubes of metal (the inductors). The reason the back is better to cool than the parts directly is that the parts are mounted with a metal pad in the middle that is designed to conduct the heat into the board. On the other hand, the top of the part is plastic and does not conduct heat as well. Thus, cooling the back of the board is best. Also, when you add heatsinks on the top of the parts, you risk shorting out some of the other small capacitors near the devices you are cooling. To repeat: It is best to heatsink and cool the back of the board under the VRM, and NOT heatsink any of the individual parts. can you take a pic of what area on the back to add heatsinks to? The copper around the fets is pretty efficient at transmitting heat, so using a bigger heatsink interface is always better than a small one since the thermal resistance of the solder mask and whatever adhesive you use is actually quite high. As a bonus, there's a couple areas that you can use to help cool the inductors if your HS is big enough to cover them. ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fi40.tinypic.com%2F6enrjc.jpg&t=665&c=uXBq6TM5t-OB5w) Awesome, thanks for the pic, which heatsinks would well for those areas? links to any would be awesome =)
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ipxtreme
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December 17, 2013, 07:04:14 AM |
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Thanks PhDminer!
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PhDMiner
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December 17, 2013, 07:20:19 AM |
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Thanks PhDminer!
Be careful!! Power supply passed away few minutes ago!! LoL 39GHs may draw lots of W. ![Cry](https://bitcointalk.org/Smileys/default/cry.gif)
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agibby5
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December 17, 2013, 03:35:53 PM |
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How important is it to get heatsinks. I realize it's up to the person who is using the devices, but I am getting between 33 and 36+ ghs on my Chilis. How much of an improvement can I expect?
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