I love the Prusa Lack enclosure but wasn't happy with the need of a second table just to mount the PSU to. Especially since I just want to put my Lack on an existing table, which offers more stability.
So instead I designed a PSU mount attached to the bottom bracket of the rear left table leg. Additionally it offers a slightly bigger pass-through tunnel for the cables. At least one extra micro-USB cable fits through, which I use for my Raspberry Pi running OctoPrint. I also saw some complaints about the PSU cables being too short when using the original design. This shouldn't be ab issue with my mount (at least it isn't for me).
Lastly you don't need any extra hardware, the PSU just snugly slides into the mount.
I own a MK2S, but it might also work for other Prusa i3 models. I can't guarantee this, so let me know in the comments if you know one of the models to use the same PSU case.
Once you have removed the PSU, you need to install a bracket in it's place so the frame doesn't lose it's stiffness. For the MK2(S) I can recommend this one by Schurma.
- Print Prusa_Enclosure_Bottom_Corner_PSU_Bracket.stl following the instructions (without support, unless you really want to)
- Cut away supporting bridge under the diagonal slot (see picture)
- Attach the bracket to the rear left leg using a screw
- Pass the PSU cables (plus any additional cables) under the pass-trough
- Slide the PSU into the bracket as seen in the photo's
Optional (If you want to put a second LACK table under your enclosure)
- Print the modified plug which has more space for the cables and screw it on top of the second cable
It is designed to be printed without supports. To do this there are two 1 layer thick supporting bridges. The one in the circle you can just leave and screw right through, but the one in the rectangle needs to be cut away (photo shows the end result). Be careful not to cut yourself!
The PSU slides right in and should stay put.