Rack blank panel 1U and 2U – closed or vented – 10″ and 19″ rack, no supports

Blank panel for empty rack units: 1U or 2U, closed or with vent slots. Centre part plus ears for 10″ and 19″ racks, no supports.

Fits: Empty rack units (1U or 2U) in 10″ racks (hole spacing 234.0–239.5 mm, slotted) and 19″ racks (EIA-310, 465.1 ± 1 mm); ears for both widths are in the download.

Please note: nothing has been printed yet. The tongue-and-groove joint between the part and the ears is calculated, not yet printed.

Blank panel for empty rack units in 10″ or 19″ racks: closes gaps, guides the airflow and looks tidy.

• Four variants: 1U or 2U, each closed or with vent slots.

• One centre part for 10″ and 19″: only the ears change. Ears for 1U and 2U are in the download.

• Ears with slots: 10″ for 234.0–239.5 mm hole spacing (there is no standard for 10″ racks), 19″ for 465.1 ± 1 mm. Fits #10-32, M5 and M6.

• Centre part–ear joint: 2 × M3 countersunk per side with a nut in a pocket, plus tongue and groove so the fronts sit flush.

The panel carries no device, so there is no rear support and the 19″ ears come without the stiffening beam (lighter). Rack dimensions to EIA-310 and the 10″ hole spacings we found; our part has not been tested on a rack yet. Print the free rack fit test part (in our “Magmacode” profile) first if you are unsure about your rack or printer.

Variants (all included)

• 1U closed

• 1U vented

• 2U closed

• 2U vented

Print settings

• Material: PETG (or ASA). No PLA: devices run warm in a rack and PLA creeps over time.

• Layer height 0.2 mm, 3 walls, 15 % infill, no supports.

• Orientation: Centre part: front face down. Ears: upright, as the files are laid out.

• Print time approx. 2 h 51 min and about 44 g (default variant 1U vented: centre part + pair of 10″ ears; other variants differ; 19″ ears are larger and take longer).

Hardware (not included)

• 4 × M3×10 countersunk screw (ISO 10642)

• 4 × M3 nut (ISO 4032)

• 4 × your rack's screw (#10-32, M5 or M6) with a washer: 4 for 1U, 8 for 2U

Assembly

1. Press the M3 nuts into the end-wall pockets, fit the ears (tongue into groove) and fasten each with 2 × M3×10 countersunk screws.

2. Screw the panel in with rack screws and washers.

Safety

Carries no device; do not hang or place anything on it. Keep the ventilation of the devices in the rack free.

Fit

10″ ears slotted for 234.0–239.5 mm, 19″ ± 1 mm.

FAQ

Closed or vented? Closed if the air in the rack should flow from front to back through the devices (the panel stops air from short-cutting). Vented if the devices stand free and warm air may also escape at the front.

Which material? PETG or ASA, like the inserts: it gets warm in a rack and PLA creeps over time.

How it's made

Parametric CAD (build123d, Python), exact solids. The CAD code was written with an AI assistant and checked by us; no AI-generated meshes or images. Renders are made from the CAD in Blender; they are not photos.

License

CC BY-NC 4.0: you may share and adapt it for non-commercial purposes, as long as you credit Magmacode and link the license (https://creativecommons.org/licenses/by-nc/4.0/). Commercial sale of printed parts only by written agreement with Magmacode.

Matching rack inserts for Mac mini, mini PCs, Raspberry Pi, UniFi gear and switches are in the Magmacode profile.