Anicubic Vyper - Power Supply cover for 92x14mm Noctua fan
Description
This is a power supply cover for the Anycubic Vyper to exchange the original 60mm fan with a silent 92mmx14mm Noctua fan (NF-A9x14). https://www.amazon.de/Noctua-NF-A9x14-L%C3%BCfter/dp/B009NQM7V2 Other fans with the same size may fit as well, but I have not tested it. The cover replaces the main cover plate of the vyper as well as the power supply cover with the original 60mm fan. For the cover to be mounted, it's necessary to raise the feet of the printer as the fan is mounted on the outside of the cover. You can use the distance pieces I provided. The screws you will need are M4x25mm I have the updated version of the Vyper from end of 2021. I don't know if this cover will fit for the older version as well. The Vyper uses 24V for the fan. The Noctua fan needs between about 7V and 12V. So, a DC-DC step down converter is necessary. I use the LM2596. It's very cheap and reasonably small. https://www.amazon.de/gp/product/B07F38DJLS There is some space below the cover to fit a small housing for the converter: https://www.thingiverse.com/thing:1625233 To fit the two peaces of the cover together, I added 5 holes for thread inserts. The holes are 4mm wide to fit a short M3 thread insert. I use the inserts from CNC kitchen (you need the short version, the standard size will be too long! When I wrote this text, the short ones were not available on Amazon): https://www.amazon.de/gp/product/B09CL2XDZ9 The screws should be about 6 to 10mm long The screws for mounting the plate to the printer can be the same size. I connected the DC-DC converter to the power outlet of the power supply. Make sure to turn down the voltage below 12V with the DC-DC converter before connecting the fan to it. By default, the converter will simply pass through the 24V and damage the fan. For connecting the LM2596 to the Noctua fan, you can simply use the cables that Noctua delivers with the fan. Just cut of one side from the Y-split cable, solder it to the LM2596 and connect it to the fan. You only need the black (out - ) and yellow wire (out + ). The other two cables are for a PWM signal and fan speed. Both are not used here as we directly control the speed with the DC voltage from the LM2596. I use the uncovered fan. If you want to cover it, I added a fan grill for download. You can find a similar mod for the mainboard fan here: https://www.thingiverse.com/thing:5248917
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