As you can see from the picture, most Crypto Currency mining rigs come with supports to attach a cooling fan rail to the front of the rig.

However, they don't provide enough supports to allow you to secure both the front and back of the fans. This means that, whilst the fans are all secured form the front, the entire rails can bow inward because there are no rear supports.

To solve this, I sketched up a replica of the front support, but left out the fan cage recess as there is no rear fan cage. This enables you to secure the fans from both the front and reverse side, making it more secure.

Most rigs have 5, 6 or 7 fans, so all you need do is print the quantity needed for your rig. n.b. This particular item has the correct dimensions and hole spacing for 120mm cooling fans. These are the fans shown in the picture: https://amzn.to/2me8yIY

I've suggested an infill density of 25% (they printed fine on my Vertex 3D) however the more infill, the more solid the object so feel free to increase it.

You'll need 2 x Fan Screws per support 5mm x 10mm but these can easily be obtained. An example can be found here: https://amzn.to/2ndRK4W

I'm currently working on additional rig items, such as cable control, Hard Disk/SSD mounting, additional GPU supports etc.

No obligation, but if you like this or any other things then feel free to make a small donation.

Bitcoin: 3N7UZ14J6ZyVSCABbHfx8oxmwVNNRNfDAn Ethereum: 0x283251fc60425429fDF8C9F65C6e9a9F01bbA1B5