Hello SFF community!
I'm here to showcase a prototype that converts an EK Velocity CPU block to a pump/block combo. It reuses the cold plate and jet plate of the existing block, and replaces the original acrylic/metal top to allow mounting of a DDC or EK-SPC pump onto it. After the replacement of the original top, the pump/block is 25mm (EK-SPC variant) or 25.5mm (DDC variant) tall (including cold plate, excluding pump). The purpose is to have a simple one-piece solution while retaining the performance of the original Velocity block since the cold plate is reused. At this time it is also relatively cheap to grab an EK Velocity block if you don't have one lying around.
Dimensions: 88x62x25mm (EK-SPC variant), 88x62x25.5mm (DDC variant)
Compatibility: EK-Quantum Velocity CPU block. Tested for Intel version. Needs to be verified for AMD but expected to also work. Note that RGB (if your block has it) needs to be removed.
The block can be made with acetal (delrin) or metal, perhaps acrylic as well. Here are some photos of an acetal prototype (EK-SPC pump variant; please note that the volute spiral shape is in the wrong direction in this prototype, which I had to correct with some manual sanding before testing CPU thermals and flow rate). Also included what it looks like in FormD T1 V2.
To assess the effectiveness of Velocitop I tested the flow rate with a King Instrument rotameter in a simple loop. I saw a 9-15% penalty in flow rate in the two pump settings tested which I consider quite good given the design constraints. As a point of reference, various DDC pump tops designs have flow rate differences of 10-20%.
To test CPU thermals, I ran an Intel i7 12700K stock with AIDA64 FPU stress test (~185W). CPU temperature was within ~1C of the original Velocity block.
Test data below for both flow rate and thermals.
This project was purely for fun and my desire to have a CPU pump/block combo for the EK-SPC pump, which I consider to be much superior noise-wise (I mean serious dead-silent) to DDCs. Since I don't expect to be running a side business my current plan is to make the design (.step) public for personal use and anyone who wants one can find a CNC shop. I made the prototype (just one piece) using Xometry Asia and it was less than $80. I understand that not everyone has access to cheap manufacturing like that, but I also don't want to deal with the risk of QA, shipping things from China, etc.
In the meantime, I do plan to order a final design of the SPC variant and a DDC variant for myself. A few folks over at #sff-gurus discord had expressed interest when I showcased it so I might ordering a few more for those folks just to give back to the community.
I will post the final .step files once I can verify that everything works.
I'm here to showcase a prototype that converts an EK Velocity CPU block to a pump/block combo. It reuses the cold plate and jet plate of the existing block, and replaces the original acrylic/metal top to allow mounting of a DDC or EK-SPC pump onto it. After the replacement of the original top, the pump/block is 25mm (EK-SPC variant) or 25.5mm (DDC variant) tall (including cold plate, excluding pump). The purpose is to have a simple one-piece solution while retaining the performance of the original Velocity block since the cold plate is reused. At this time it is also relatively cheap to grab an EK Velocity block if you don't have one lying around.
Dimensions: 88x62x25mm (EK-SPC variant), 88x62x25.5mm (DDC variant)
Compatibility: EK-Quantum Velocity CPU block. Tested for Intel version. Needs to be verified for AMD but expected to also work. Note that RGB (if your block has it) needs to be removed.
The block can be made with acetal (delrin) or metal, perhaps acrylic as well. Here are some photos of an acetal prototype (EK-SPC pump variant; please note that the volute spiral shape is in the wrong direction in this prototype, which I had to correct with some manual sanding before testing CPU thermals and flow rate). Also included what it looks like in FormD T1 V2.
To assess the effectiveness of Velocitop I tested the flow rate with a King Instrument rotameter in a simple loop. I saw a 9-15% penalty in flow rate in the two pump settings tested which I consider quite good given the design constraints. As a point of reference, various DDC pump tops designs have flow rate differences of 10-20%.
To test CPU thermals, I ran an Intel i7 12700K stock with AIDA64 FPU stress test (~185W). CPU temperature was within ~1C of the original Velocity block.
Test data below for both flow rate and thermals.
This project was purely for fun and my desire to have a CPU pump/block combo for the EK-SPC pump, which I consider to be much superior noise-wise (I mean serious dead-silent) to DDCs. Since I don't expect to be running a side business my current plan is to make the design (.step) public for personal use and anyone who wants one can find a CNC shop. I made the prototype (just one piece) using Xometry Asia and it was less than $80. I understand that not everyone has access to cheap manufacturing like that, but I also don't want to deal with the risk of QA, shipping things from China, etc.
In the meantime, I do plan to order a final design of the SPC variant and a DDC variant for myself. A few folks over at #sff-gurus discord had expressed interest when I showcased it so I might ordering a few more for those folks just to give back to the community.
I will post the final .step files once I can verify that everything works.
