Is this 3D model free to download?

Yes, Prusa i3 MK3 Mean Well PSU Case and Mounting Bracket is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by ctilley79, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Prusa i3 MK3 Mean Well PSU Case and Mounting Bracket 3D printable model by ctilley79

Prusa i3 MK3 Mean Well PSU Case and Mounting Bracket photo 1

Prusa i3 MK3 Mean Well PSU Case and Mounting Bracket photo 2

Prusa i3 MK3 Mean Well PSU Case and Mounting Bracket photo 3

Prusa i3 MK3 Mean Well PSU Case and Mounting Bracket photo 4

Prusa i3 MK3 Mean Well PSU Case and Mounting Bracket

Source: Thingiverse by ctilley79

The Prusa i3 MK3 Mean Well PSU Case and Mounting Bracket is a free printable 3D model from Thingiverse by ctilley79. ###What is it? Since power supplies for the Prusa i3 mk3 seem to be unreliable, I designed a PSU cover so you can use a Mean Well NES-350-24 or it's replacement the LRS-350-24. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

536 saves Source: Thingiverse Updated 2026-11-02 License: CC-BY · commercial OK 12 makes Category: 3D Printer

Tags: power supply cover, prusa i3, prusa i3 mk3, PSU

About this model

###What is it? Since power supplies for the Prusa i3 mk3 seem to be unreliable, I designed a PSU cover so you can use a Mean Well NES-350-24 or it's replacement the LRS-350-24. The only difference between the two is that the LRS-350 is a thinner 1U form factor. The cover was designed to keep the same sleek look as the stock PSU. Any feedback is welcome. ###Hardware You can use the stock screws and nuts for the bottom PSU cover plate. Those are M3X8 6 M4X10 flat head screws 2 M4X12R to mount the PSU to the Prusa frame. 2 M4 Nuts up to 3mm thick IMPORTANT: The screws that attach the PSU to the Prusa frame must not be too long. If they are, they will press up against the power supply and warp the frame. Only tighten these enough to make the PSU snug. ###Update: 03-12-2018: Removed LRS bottom …

Frequently asked questions

Is this 3D model free to download?: Yes. Prusa i3 MK3 Mean Well PSU Case and Mounting Bracket is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by ctilley79.
Who made this model?: Designed by ctilley79, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.