Honeycomb grid / fan guard 3D models

First model: 2025-10-24

Number of 3D models generated: 705

Category: technical parts

gizmo — Example of a 3D model generated using this template
(model #3574)

Photos of various 3D printed models

This template generates custom honeycomb grille. Beyond choosing the length, width, and mesh size, you can also enable or disable the presence of holes according to a defined center-to-center spacing. In that case, the hole diameter can also be customized.

The dual color option allows you to add an aesthetic touch if desired, with a secondary color band around the perimeter.

The finer the mesh, the higher the protection — but the airflow will be more restricted.

Models are generated with a thickness of 2 mm. You can easily adjust this thickness by scaling the model along the Z axis in your slicer, without altering the part’s design:

adjust the thickness by scaling the model along the Z axis

If you need to offset the grid from a fan, for example, you can model a ring.

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Keywords: protective grill, fan grill, ventilation grill, air vent, vent plate, fan guard

Quick Search & Generation

Enter at least one field.
If the model doesn’t exist, on-demand generation will be offered to you.

	name	unit	Value	Weight
#1	length or center-to-center 30 to 300 - integer	mm
#2	width or center-to-center 30 to 300 - integer	mm
#3	mesh size 3 to 10 - integer	mm
#4	dual color		-	-
#5	holes		-	-
#6	hole diameter	mm	-	-

Additional information

2025-11-17 (last model before revision: #3360) :
The STL export method has been modified.

The thickness of the walls forming the honeycomb structure is 1.2 mm.

When no holes are present, the width of the outer band is 1.5 mm.
When holes are present, the width of the outer band is equal to half the hole diameter.

When holes are present, the boss (reinforcing collar around the holes) has a diameter equal to twice the hole diameter.

When holes are present, the distance between the center of a hole and the outer edge of the frame is equal to the hole diameter.

The grid thickness is fixed at 2 mm.

The outer rim features a 1 mm rounded edge (fillet) on all four corners.

When the dual color parameter is enabled, the external band has a width equal to 30% of the hole diameter (0.9 mm when no holes are present).

Illustration of the parameters

The latest online-generated models

Protective grid STL 3D file, 50x30mm, mesh: 6mm (📦 #12602)

1 object(s) - format STL

Rectangular protective grid file in STL format. The overall size is 50x30 mm, with open 6 mm cell size for optimal air circulation. This grid acts as a protective guard while allowing airflow.

Parameter	Value	Unit
length or center-to-center	50	mm
width or center-to-center	30	mm
mesh size	6	mm
dual color	no
holes	no

Honeycomb grille STL 3D file, 50x30mm, mesh: 4mm (📦 #12601)

1 object(s) - format STL

Rectangular grid model as a STL file. The overall size is 50x30 mm, with medium 4 mm cell size for versatile use. This grid functions as both a mechanical guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	50	mm
width or center-to-center	30	mm
mesh size	4	mm
dual color	no
holes	no

Honeycomb grille STL 3D file, 50x30mm, mesh: 5mm (📦 #12600)

1 object(s) - format STL

Download this rectangular protective honeycomb grid as a STL file. The overall size is 50x30 mm, with medium 5 mm cell size for versatile use. This type of grid serves both protection and ventilation roles.

Parameter	Value	Unit
length or center-to-center	50	mm
width or center-to-center	30	mm
mesh size	5	mm
dual color	no
holes	no

Honeycomb grille STL file, center-to-center: 290x240mm, mesh: 10mm - Ø4mm (📦 #12596)

1 object(s) - format STL

Download this rectangular grid model in STL format. Mounting holes are placed at the four corners (center-to-center 290x240 mm), each with a diameter of Ø4 mm. The overall dimensions reach 298x248 mm, with very large 10 mm cell size for peak ventilation. This grid functions as both a mechanical guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	290	mm
width or center-to-center	240	mm
mesh size	10	mm
dual color	no
holes	yes
hole diameter	4	mm

Honeycomb grille STL file, center-to-center: 191x159mm, mesh: 10mm - Ø4mm (📦 #12575)

1 object(s) - format STL

Rectangular protective grid file in STL format. Mounting holes are placed at the four corners (center-to-center 191x159 mm), each with a diameter of Ø4 mm. The overall dimensions reach 199x167 mm, with very large 10 mm cell size for maximum airflow. This grid provides both mechanical protection and airflow.

Parameter	Value	Unit
length or center-to-center	191	mm
width or center-to-center	159	mm
mesh size	10	mm
dual color	no
holes	yes
hole diameter	4	mm

Honeycomb grid STL 3D file, center-to-center: 299x167mm, mesh: 10mm - Ø4mm (📦 #12574)

1 object(s) - format STL

Download this rectangular grid file in STL format. Mounting holes are placed at the four corners (center-to-center 299x167 mm), each with a diameter of Ø4 mm. The overall dimensions reach 307x175 mm, with extra wide 10 mm cell size for peak ventilation. This grid provides both mechanical protection and airflow.

Parameter	Value	Unit
length or center-to-center	299	mm
width or center-to-center	167	mm
mesh size	10	mm
dual color	no
holes	yes
hole diameter	4	mm

Honeycomb grille STL 3D file, center-to-center: 142x82mm, mesh: 10mm - Ø4mm (📦 #12561)

1 object(s) - format STL

3D rectangular grid model in STL format. Mounting holes are placed at the four corners (center-to-center 142x82 mm), each with a diameter of Ø4 mm. The overall dimensions reach 150x90 mm, with very open 10 mm cell size for maximum airflow. This type of grid provides mechanical protection and ventilation.

Parameter	Value	Unit
length or center-to-center	142	mm
width or center-to-center	82	mm
mesh size	10	mm
dual color	no
holes	yes
hole diameter	4	mm

Protective grid STL file, 63x57mm, mesh: 3mm (📦 #12526)

1 object(s) - format STL

Download this rectangular protective honeycomb grid file in STL format. The overall size is 63x57 mm, with fine 3 mm cell size for high protection. This type of grid provides mechanical protection and ventilation.

Parameter	Value	Unit
length or center-to-center	63	mm
width or center-to-center	57	mm
mesh size	3	mm
dual color	no
holes	no

Honeycomb grid STL 3D file, 212x208mm, mesh: 10mm (📦 #12504)

1 object(s) - format STL

3D rectangular protective honeycomb grid model as a STL file. The overall size is 212x208 mm, with extra wide 10 mm cell size for peak ventilation. This grid serves as both a protective guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	212	mm
width or center-to-center	208	mm
mesh size	10	mm
dual color	no
holes	no

Honeycomb grille STL file, center-to-center: 300x50mm, mesh: 10mm - Ø4mm (📦 #12485)

1 object(s) - format STL

Download this rectangular honeycomb grid as a STL file. Mounting holes are placed at the four corners (center-to-center 300x50 mm), each with a diameter of Ø4 mm. The overall dimensions reach 308x58 mm, with extra wide 10 mm cell size for peak ventilation. This grid acts as a protective guard while allowing airflow.

Parameter	Value	Unit
length or center-to-center	300	mm
width or center-to-center	50	mm
mesh size	10	mm
dual color	no
holes	yes
hole diameter	4	mm

Protective grid STL file, center-to-center: 100x40mm, mesh: 4mm - Ø4mm (📦 #12478)

1 object(s) - format STL

3D honeycomb rectangular grid model as a STL file. Mounting holes are placed at the four corners (center-to-center 100x40 mm), each with a diameter of Ø4 mm. The overall dimensions reach 108x48 mm, with standard 4 mm cell size for versatile use. This grid functions as both a mechanical guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	100	mm
width or center-to-center	40	mm
mesh size	4	mm
dual color	no
holes	yes
hole diameter	4	mm

Honeycomb grille STL 3D file, 144x106mm, mesh: 3mm (📦 #12458)

1 object(s) - format STL

Download this rectangular honeycomb grid model in STL format. The overall size is 144x106 mm, with very fine 3 mm cell size for high protection. This type of grid provides mechanical protection and ventilation.

Parameter	Value	Unit
length or center-to-center	144	mm
width or center-to-center	106	mm
mesh size	3	mm
dual color	no
holes	no

Protective grid STL 3D file, center-to-center: 234x234mm, mesh: 10mm - Ø4mm (📦 #12453)

1 object(s) - format STL

3D square protective grid file in STL format. Mounting holes are placed at the four corners (center-to-center 234x234 mm), each with a diameter of Ø4 mm. The overall dimensions reach 242x242 mm, with very large 10 mm cell size for peak ventilation. This type of grid serves both protection and ventilation roles.

Parameter	Value	Unit
length or center-to-center	234	mm
width or center-to-center	234	mm
mesh size	10	mm
dual color	no
holes	yes
hole diameter	4	mm

Honeycomb grille STL 3D file, center-to-center: 234x234mm, mesh: 4mm - Ø3mm (📦 #12451)

1 object(s) - format STL

3D square protective grid file in STL format. Mounting holes are placed at the four corners (center-to-center 234x234 mm), each with a diameter of Ø3 mm. The overall dimensions reach 240x240 mm, with regular 4 mm cell size for versatile use. This grid acts as a protective guard while allowing airflow.

Parameter	Value	Unit
length or center-to-center	234	mm
width or center-to-center	234	mm
mesh size	4	mm
dual color	no
holes	yes
hole diameter	3	mm

Honeycomb grille STL file, center-to-center: 165x140mm, mesh: 10mm - Ø5mm (📦 #12446)

1 object(s) - format STL

3D honeycomb rectangular grid file in STL format. Mounting holes are placed at the four corners (center-to-center 165x140 mm), each with a diameter of Ø5 mm. The overall dimensions reach 175x150 mm, with very open 10 mm cell size for maximum airflow. This type of grid serves both protection and ventilation roles.

Parameter	Value	Unit
length or center-to-center	165	mm
width or center-to-center	140	mm
mesh size	10	mm
dual color	no
holes	yes
hole diameter	5	mm

Honeycomb grid STL 3D file, center-to-center: 60x42mm, mesh: 4mm - Ø4mm (📦 #12399)

1 object(s) - format STL

Download this rectangular protective grid file in STL format. Mounting holes are placed at the four corners (center-to-center 60x42 mm), each with a diameter of Ø4 mm. The overall dimensions reach 68x50 mm, with medium 4 mm cell size for balanced airflow and protection. This type of grid provides mechanical protection and ventilation.

Parameter	Value	Unit
length or center-to-center	60	mm
width or center-to-center	42	mm
mesh size	4	mm
dual color	no
holes	yes
hole diameter	4	mm

Honeycomb grille STL 3D file, center-to-center: 95x48mm, mesh: 4mm - Ø4mm (📦 #12395)

1 object(s) - format STL

Download this rectangular grid file in STL format. Mounting holes are placed at the four corners (center-to-center 95x48 mm), each with a diameter of Ø4 mm. The overall dimensions reach 103x56 mm, with standard 4 mm cell size for balanced airflow and protection. This grid functions as both a mechanical guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	95	mm
width or center-to-center	48	mm
mesh size	4	mm
dual color	no
holes	yes
hole diameter	4	mm

Honeycomb grille STL file, 78x78mm, mesh: 5mm (📦 #12393)

1 object(s) - format STL

3D fan guard file in STL format. The overall size is 78x78 mm, with regular 5 mm cell size for balanced airflow and protection. This grid serves as both a protective guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	78	mm
width or center-to-center	78	mm
mesh size	5	mm
dual color	no
holes	no

Honeycomb grille STL 3D file, center-to-center: 280x180mm, mesh: 10mm - Ø4mm (📦 #12384)

1 object(s) - format STL

Rectangular protective grid model as a STL file. Mounting holes are placed at the four corners (center-to-center 280x180 mm), each with a diameter of Ø4 mm. The overall dimensions reach 288x188 mm, with very open 10 mm cell size for maximum airflow. This grid functions as both a mechanical guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	280	mm
width or center-to-center	180	mm
mesh size	10	mm
dual color	no
holes	yes
hole diameter	4	mm

Honeycomb grid STL file, 270x128mm, mesh: 5mm (📦 #12377)

1 object(s) - format STL

Download this rectangular protective honeycomb grid as a STL file. The overall size is 270x128 mm, with regular 5 mm cell size for balanced airflow and protection. This grid functions as both a mechanical guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	270	mm
width or center-to-center	128	mm
mesh size	5	mm
dual color	no
holes	no

Honeycomb grille STL 3D file, center-to-center: 170x128mm, mesh: 4mm - Ø4mm (📦 #12376)

1 object(s) - format STL

Rectangular grid model in STL format. Mounting holes are placed at the four corners (center-to-center 170x128 mm), each with a diameter of Ø4 mm. The overall dimensions reach 178x136 mm, with standard 4 mm cell size for balanced airflow and protection. This grid acts as a protective guard while allowing airflow.

Parameter	Value	Unit
length or center-to-center	170	mm
width or center-to-center	128	mm
mesh size	4	mm
dual color	no
holes	yes
hole diameter	4	mm

Protective grid STL file, 300x150mm, mesh: 5mm (📦 #12375)

1 object(s) - format STL

Honeycomb rectangular grid model in STL format. The overall size is 300x150 mm, with standard 5 mm cell size for balanced airflow and protection. This type of grid provides mechanical protection and ventilation.

Parameter	Value	Unit
length or center-to-center	300	mm
width or center-to-center	150	mm
mesh size	5	mm
dual color	no
holes	no

Honeycomb grid STL 3D file, 139x99mm, mesh: 10mm (📦 #12372)

1 object(s) - format STL

Rectangular honeycomb grid model in STL format. The overall size is 139x99 mm, with very large 10 mm cell size for maximum airflow. This grid acts as a protective guard while allowing airflow.

Parameter	Value	Unit
length or center-to-center	139	mm
width or center-to-center	99	mm
mesh size	10	mm
dual color	no
holes	no

Honeycomb grid STL file, 140x100mm, mesh: 10mm (📦 #12371)

1 object(s) - format STL

Rectangular honeycomb grid model as a STL file. The overall size is 140x100 mm, with very open 10 mm cell size for peak ventilation. This grid acts as a protective guard while allowing airflow.

Parameter	Value	Unit
length or center-to-center	140	mm
width or center-to-center	100	mm
mesh size	10	mm
dual color	no
holes	no

Protective grid STL 3D file, 140x100mm, mesh: 3mm (📦 #12370)

1 object(s) - format STL

3D rectangular honeycomb grid model as a STL file. The overall size is 140x100 mm, with fine 3 mm cell size for high protection. This type of grid serves both protection and ventilation roles.

Parameter	Value	Unit
length or center-to-center	140	mm
width or center-to-center	100	mm
mesh size	3	mm
dual color	no
holes	no

Honeycomb grille STL 3D file, center-to-center: 242x102mm, mesh: 5mm - Ø4mm (📦 #12305)

1 object(s) - format STL

Rectangular grid model as a STL file. Mounting holes are placed at the four corners (center-to-center 242x102 mm), each with a diameter of Ø4 mm. The overall dimensions reach 250x110 mm, with standard 5 mm cell size for versatile use. This type of grid provides mechanical protection and ventilation.

Parameter	Value	Unit
length or center-to-center	242	mm
width or center-to-center	102	mm
mesh size	5	mm
dual color	no
holes	yes
hole diameter	4	mm

Honeycomb grille STL file, center-to-center: 250x170mm, mesh: 10mm - Ø8mm (📦 #12281)

1 object(s) - format STL

Rectangular protective honeycomb grid file in STL format. Mounting holes are placed at the four corners (center-to-center 250x170 mm), each with a diameter of Ø8 mm. The overall dimensions reach 266x186 mm, with extra wide 10 mm cell size for peak ventilation. This type of grid serves both protection and ventilation roles.

Parameter	Value	Unit
length or center-to-center	250	mm
width or center-to-center	170	mm
mesh size	10	mm
dual color	no
holes	yes
hole diameter	8	mm

Honeycomb grid STL file, 250x96mm, mesh: 4mm (📦 #12255)

1 object(s) - format STL

Download this 3D honeycomb rectangular grid file in STL format. The overall size is 250x96 mm, with medium 4 mm cell size for versatile use. This type of grid serves both protection and ventilation roles.

Parameter	Value	Unit
length or center-to-center	250	mm
width or center-to-center	96	mm
mesh size	4	mm
dual color	no
holes	no

Protective grid STL file, 250x95mm, mesh: 7mm (📦 #12247)

1 object(s) - format STL

Download this 3D rectangular honeycomb grid file in STL format. The overall size is 250x95 mm, with open 7 mm cell size for optimal air circulation. This grid provides both mechanical protection and airflow.

Parameter	Value	Unit
length or center-to-center	250	mm
width or center-to-center	95	mm
mesh size	7	mm
dual color	no
holes	no

Honeycomb grid STL 3D file, 200x100mm, mesh: 6mm (📦 #12242)

1 object(s) - format STL

Download this honeycomb protective rectangular grid file in STL format. The overall size is 200x100 mm, with large 6 mm cell size for optimal air circulation. This grid acts as a protective guard while allowing airflow.

Parameter	Value	Unit
length or center-to-center	200	mm
width or center-to-center	100	mm
mesh size	6	mm
dual color	no
holes	no

Use Cases for Honeycomb Ventilation and Protection Grids

3D-printable honeycomb grids offer both an aesthetic and functional solution for protection, ventilation, and mechanical shielding. Their honeycomb structure provides an excellent balance between rigidity, lightness, and airflow efficiency. Thanks to parametric generation, each grid can be customized with exact dimensions, mesh size, hole diameter, and the option to include or omit a colored border.

A small honeycomb grid with 32 mm spacing is ideal for protecting a compact fan of the same pitch. Larger grids are also possible, such as this large square grid measuring 200 × 200 mm, which offers an optimal open surface to maximize airflow while maintaining excellent structural strength.

For specific projects involving multiple fans arranged in a row for example, a rectangular grid layout can address more complex requirements. These customizable models are suitable not only for fan protection but also for other technical applications, thanks to their stable and reproducible on-demand design.

Honeycomb grid / fan guard 3D models

Photos of various 3D printed models

Quick Search & Generation

Additional information

See template revisions

See 3d modeling details

Illustration of the parameters

Categories

The latest online-generated models

Use Cases for Honeycomb Ventilation and Protection Grids