Prusa i3 draft management and Z rods holder

thingiverse

Note: Rotate the parts by 180 degrees before printing. I had problems with drafts (small winds) coming from sides at the build platform, on the left it came from a fan that's cooling the H bridges. On the right, it was coming from the PSU. So I made a cover for the PSU and a small barrier on the right. Because the Z-axis glider was held by a socket 0.3mm deep, I was worried it could fall off. So the draft holders are acting as Z-axis holders as well. I've seen different designs before, but they require taking it apart and messing with the mounting system of the steppers. I didn't want to affect anything; the screws are made with an exact distance, and putting some PLA in between could affect the torque and how stiff the mount is. Now metal against metal, they can be very tight, so I don't have to worry that something will go out of alignment or get loose. My design slides on top of the existing design (no need to undo any screws) and it will just friction fit on top because I misaligned some holes maybe by 0.2mm, so it's harder to put on, which means it will hold there without any screws. If you want a thicker holder, then just scale on the Z-axis. If you don't want the barrier on the left side, then just take the right side and flip it 180 (the holes and positions are mirrored, so it should fit both sides). The PSU cover directs the wind a bit to the back; as shown in the photo, it's not obstructing the fan much, but it's enough to direct the air away. Without too much wind getting bounced back from close objects (a wall) back to the build platform and cooling it down, causing warping and other issues.