Newest Version: SP3 Duct 2.0 After many iterations and trials the SP3 Duct is ready to cool your SP3! I have been working over the last couple weeks to make a duct that will work with an off-the-shelf fan that will reduce throttling and help us consumers realize the full power within the SP3 (and let's face it, play more games). My goal was to make this as cheap as possible while still being robust enough to carry around. Since 3D printing costs are based on volume I have forgone any "cool" styling for minimal size and functionality. Here is the result (I apologize for the yellow color before-hand): The duct uses a 60mm x 10mm fan and has a hook on the back to retain the extra fan wiring. The fan works by directing air into the vent holes on the side by the USB and mini Display-Port. To run the fan a 3-pin to usb cable is needed which can be purchased or easily made with a spare usb cable you might have. The cover is a separate part and must be purchased independently (links to all these parts will be provided below). The SP3 Duct attaches to the side of the case and still allows for a fairly large range of motion in the kick-stand: The duct works by blowing air into the side of the SP3 through its vent holes by re-directing the air: Unfortunately to power the fan it must use the one usb port on the SP3 but to solve that problem I created the SP3 Usb Holder: This little guy attaches to the SP3 Duct for compact carrying and attachment: There are even extra hooks that you can attach to the SP3 Duct if you want to hook it on without the duct: Here is a video of it in action. Playing skyrim, I let the SP3 heat soak and started recording: I hope this brings gaming to the Surface Pro 3. I know it kind of sucks having to buy each of these things individually but this way everyone can get and pay what they want. I wish I could go have a die made (several grand for each part) for each of these parts and sell them for cheap but as it stands 3D printing is the only option at this point. When installing the fan, the sticker side points down. See next post for links to parts. -The fan I linked is the fan I tested with. Feel free to use any other 60mm x 10mm fan but the one in the link has a very good flow rate that I could not find on others. -This fan is also a 12V fan and the USB supplies 5V so the fan will run quieter than the 37.9dB. -The 3-pin to usb connector is not necessary if you are willing to solder/wire-nut and strip a usb cable and your fan cables. -I have designed all the parts to snap together so no mounting hardware is needed. -I chose shapeways because I have had a few things made there and they all turned out very well but I have not had these parts made there yet. -The SP3 Duct blows air into the vent holes on the side of the SP3 and not just onto the back of the machine. Here is the previous thread that has testing results and discussion for those interested.