SONOFF NSPanel Pro 120 portrait mode desk stand

Update – All-In-One variant V2 added.
Read the specifications at the end of this description.
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This is a portrait version of my SONOFF NSPanel Pro 120 table stand, which I previously mentioned in my other project.
 

The stand is made of two main parts:

• Upper body → NFP-Pro-120_portrait_upper_body.stl
• Lower body (two variants):
  • NFP-Pro-120_portrait_base_logo.stl → with raised SONOFF logo
  • NFP-Pro-120_portrait_base.stl → plain version, no logo

The two bodies are fastened with 4x M3x20 socket head screws.

• The holes in the upper body use a three-lobe design to ease self-tapping.
• The overhanging holes in the lower body require no supports, thanks to a custom workaround using tangent bridges to avoid extrusion collapse.
• On the underside of the lower body there are circular recesses to guide placement of three adhesive silicone feet (6 mm diameter) arranged in a triangle.

The front plate of the panel is fixed with 2x M3x10 pan head screws, also with the self-tapping hole design.

Extra components

This stand is designed to house three optional parts:

• IEC 320 C8 AC socket (upper body)
• Rocker switch (upper body)
• Cylindrical fuse holder for 5×20 mm fuses (lower body)

If you don’t want to use the switch or fuse holder, you can close the holes with:

• switch_cap.stl
• fuse_cap.stl → ⚠️ strongly recommended to print in PETG, since its three locking tabs are prone to breaking in PLA.

Print plates

Three print plates are provided:

1. PLA – upper + lower body with logo, plus caps
2. PLA – upper + lower body plain, plus caps
3. PETG – only the caps (recommended material for durability)

Each object has custom print settings.

• Both upper and lower body require tree supports, easy to remove.

The project is released under CC BY-SA license.
Remixes are welcome! To make them easier, STEP files are included.
If you remix or adapt this design, consider leaving a comment or a ‘boost’ to share your improvements!

 

Update 10/1/2025 – Variant V2

• All-In-One design: the lower and upper parts have been merged: small internal modifications were made to reduce the need for additional supports.
• The fuse holder has been removed, while the snap-in AC socket and rocker switch remain unchanged.
• Also, this variant no longer requires the 4x M3x20 socket head screws.
• The lower front geometry has also been redesigned for a cleaner look, and the anti-slip system now relies on four silicone feet instead of three.
• As with the previous version, tree supports are required but very easy to remove.
• Both STL and STEP files (named NFP-Pro-120_portrait_stand_V2) are provided, along with a dedicated print profile for this variant.
• Print profile upgraded by adding a fourth print plate for the V2 version.
• Added an access hole on the base, allowing the panel to be removed using a flathead screwdriver (detail at the end of the video).

Wiring is straightforward: just solder two wires to the AC socket (one going to the display, the other ending with a faston terminal), then connect the faston to the rocker switch. On the other side of the switch, another faston cable goes to the display. Using the pre-crimped fastons usually supplied with the switch makes the process quick and clean.

 

Installation guide video

 

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