Honeycomb grid / fan guard 3D models

First model: 2025-10-24

Number of 3D models generated: 615

Category: technical parts

Loading...

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:

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

Show more Show less

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	-	-
			Search

Additional information

See template revisions

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

See 3d modeling details

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

Categories

Honeycomb grid / fan guard
Length or center-to-center
30 to 50 mm

Honeycomb grid / fan guard
Length or center-to-center
50 to 100 mm

Honeycomb grid / fan guard
Length or center-to-center
100 to 150 mm

Honeycomb grid / fan guard
Length or center-to-center
150 to 200 mm

Honeycomb grid / fan guard
Length or center-to-center
200 mm and over

The latest online-generated models

Protective grid STL file, center-to-center: 174x174mm, mesh: 8mm - Ø8mm (📦 #11364)

2 object(s) - format STL

3D honeycomb protective square grid model as a STL file. Mounting holes are placed at the four corners (center-to-center 174x174 mm), each with a diameter of Ø8 mm. The overall dimensions reach 190x190 mm, with open 8 mm cell size to maximize airflow. A secondary color accent gently outlines the perimeter. This grid functions as both a mechanical guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	174	mm
width or center-to-center	174	mm
mesh size	8	mm
dual color	yes
holes	yes
hole diameter	8	mm

Honeycomb grille STL 3D file, center-to-center: 174x174mm, mesh: 8mm - Ø3mm (📦 #11357)

1 object(s) - format STL

3D fan guard model in STL format. Mounting holes are placed at the four corners (center-to-center 174x174 mm), each with a diameter of Ø3 mm. The overall dimensions reach 180x180 mm, with large 8 mm cell size to maximize airflow. This grid provides both mechanical protection and airflow.

Parameter	Value	Unit
length or center-to-center	174	mm
width or center-to-center	174	mm
mesh size	8	mm
dual color	no
holes	yes
hole diameter	3	mm

Honeycomb grid STL file, 180x30mm, mesh: 10mm (📦 #11350)

1 object(s) - format STL

Download this 3D honeycomb rectangular grid file in STL format. The overall size is 180x30 mm, with very large 10 mm cell size for maximum airflow. This grid serves as both a protective guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	180	mm
width or center-to-center	30	mm
mesh size	10	mm
dual color	no
holes	no

Honeycomb grille STL 3D file, center-to-center: 150x30mm, mesh: 10mm - Ø4mm (📦 #11339)

1 object(s) - format STL

Download this honeycomb rectangular grid model in STL format. Mounting holes are placed at the four corners (center-to-center 150x30 mm), each with a diameter of Ø4 mm. The overall dimensions reach 158x38 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	150	mm
width or center-to-center	30	mm
mesh size	10	mm
dual color	no
holes	yes
hole diameter	4	mm

Protective grid STL file, center-to-center: 180x30mm, mesh: 3mm - Ø4mm (📦 #11337)

1 object(s) - format STL

Download this rectangular grid model in STL format. Mounting holes are placed at the four corners (center-to-center 180x30 mm), each with a diameter of Ø4 mm. The overall dimensions reach 188x38 mm, with very fine 3 mm cell size for high protection. This grid functions as both a mechanical guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	180	mm
width or center-to-center	30	mm
mesh size	3	mm
dual color	no
holes	yes
hole diameter	4	mm

Honeycomb grid STL 3D file, 279x177mm, mesh: 5mm (📦 #11160)

1 object(s) - format STL

Rectangular protective honeycomb grid model in STL format. The overall size is 279x177 mm, with medium 5 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	279	mm
width or center-to-center	177	mm
mesh size	5	mm
dual color	no
holes	no

Protective grid STL file, 278x176mm, mesh: 5mm (📦 #11157)

1 object(s) - format STL

3D rectangular protective grid model as a STL file. The overall size is 278x176 mm, with regular 5 mm cell size for versatile use. This grid acts as a protective guard while allowing airflow.

Parameter	Value	Unit
length or center-to-center	278	mm
width or center-to-center	176	mm
mesh size	5	mm
dual color	no
holes	no

Honeycomb grille STL 3D file, 278x276mm, mesh: 5mm (📦 #11156)

1 object(s) - format STL

Download this 3D rectangular grid as a STL file. The overall size is 278x276 mm, with medium 5 mm cell size for versatile use. This grid serves as both a protective guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	278	mm
width or center-to-center	276	mm
mesh size	5	mm
dual color	no
holes	no

Honeycomb grid STL 3D file, center-to-center: 278x176mm, mesh: 5mm - Ø3mm (📦 #11150)

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 278x176 mm), each with a diameter of Ø3 mm. The overall dimensions reach 284x182 mm, with medium 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	278	mm
width or center-to-center	176	mm
mesh size	5	mm
dual color	no
holes	yes
hole diameter	3	mm

Honeycomb grille STL 3D file, 280x178mm, mesh: 5mm (📦 #11134)

1 object(s) - format STL

Download this 3D honeycomb rectangular grid as a STL file. The overall size is 280x178 mm, with standard 5 mm cell size for versatile use. This grid provides both mechanical protection and airflow.

Parameter	Value	Unit
length or center-to-center	280	mm
width or center-to-center	178	mm
mesh size	5	mm
dual color	no
holes	no

Protective grid STL file, center-to-center: 70x70mm, mesh: 5mm - Ø4mm (📦 #11132)

1 object(s) - format STL

Download this 3D square grid file in STL format. Mounting holes are placed at the four corners (center-to-center 70x70 mm), each with a diameter of Ø4 mm. The overall dimensions reach 78x78 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	70	mm
width or center-to-center	70	mm
mesh size	5	mm
dual color	no
holes	yes
hole diameter	4	mm

Protective grid STL 3D file, 300x113mm, mesh: 8mm (📦 #11108)

1 object(s) - format STL

Download this 3D honeycomb rectangular grid file in STL format. The overall size is 300x113 mm, with open 8 mm cell size to maximize airflow. This grid provides both mechanical protection and airflow.

Parameter	Value	Unit
length or center-to-center	300	mm
width or center-to-center	113	mm
mesh size	8	mm
dual color	no
holes	no

Honeycomb grid STL file, 178x115mm, mesh: 6mm (📦 #11091)

1 object(s) - format STL

3D honeycomb protective rectangular grid model in STL format. The overall size is 178x115 mm, with large 6 mm cell size to maximize airflow. This type of grid provides mechanical protection and ventilation.

Parameter	Value	Unit
length or center-to-center	178	mm
width or center-to-center	115	mm
mesh size	6	mm
dual color	no
holes	no

Honeycomb grille STL 3D file, center-to-center: 107x50mm, mesh: 10mm - Ø6mm (📦 #11083)

1 object(s) - format STL

3D rectangular honeycomb grid model as a STL file. Mounting holes are placed at the four corners (center-to-center 107x50 mm), each with a diameter of Ø6 mm. The overall dimensions reach 119x62 mm, with extra wide 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	107	mm
width or center-to-center	50	mm
mesh size	10	mm
dual color	no
holes	yes
hole diameter	6	mm

Honeycomb grid STL file, 178x102mm, mesh: 6mm (📦 #11082)

1 object(s) - format STL

Download this 3D rectangular protective honeycomb grid as a STL file. The overall size is 178x102 mm, with open 6 mm cell size to enhance ventilation. This grid functions as both a mechanical guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	178	mm
width or center-to-center	102	mm
mesh size	6	mm
dual color	no
holes	no

Protective grid STL 3D file, 250x139mm, mesh: 7mm (📦 #11080)

1 object(s) - format STL

Download this 3D rectangular protective honeycomb grid model in STL format. The overall size is 250x139 mm, with wide 7 mm cell size for optimal air circulation. This grid serves as both a protective guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	250	mm
width or center-to-center	139	mm
mesh size	7	mm
dual color	no
holes	no

Protective grid STL file, 250x140mm, mesh: 7mm (📦 #11079)

1 object(s) - format STL

Download this honeycomb protective rectangular grid as a STL file. The overall size is 250x140 mm, with large 7 mm cell size to enhance 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	140	mm
mesh size	7	mm
dual color	no
holes	no

Protective grid STL 3D file, center-to-center: 40x40mm, mesh: 3mm - Ø4mm (📦 #11071)

1 object(s) - format STL

Download this 3D honeycomb square grid file in STL format. Mounting holes are placed at the four corners (center-to-center 40x40 mm), each with a diameter of Ø4 mm. The overall dimensions reach 48x48 mm, with extra fine 3 mm cell size for maximum protection. This type of grid serves both protection and ventilation roles.

Parameter	Value	Unit
length or center-to-center	40	mm
width or center-to-center	40	mm
mesh size	3	mm
dual color	no
holes	yes
hole diameter	4	mm

Protective grid STL 3D file, center-to-center: 40x40mm, mesh: 4mm - Ø3mm (📦 #11070)

1 object(s) - format STL

Download this square protective grid model in STL format. Mounting holes are placed at the four corners (center-to-center 40x40 mm), each with a diameter of Ø3 mm. The overall dimensions reach 46x46 mm, with regular 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	40	mm
width or center-to-center	40	mm
mesh size	4	mm
dual color	no
holes	yes
hole diameter	3	mm

Honeycomb grid STL 3D file, center-to-center: 40x40mm, mesh: 4mm - Ø4mm (📦 #11068)

1 object(s) - format STL

Download this fan guard model in STL format. Mounting holes are placed at the four corners (center-to-center 40x40 mm), each with a diameter of Ø4 mm. The overall dimensions reach 48x48 mm, with standard 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	40	mm
width or center-to-center	40	mm
mesh size	4	mm
dual color	no
holes	yes
hole diameter	4	mm

Honeycomb grid STL file, center-to-center: 42x42mm, mesh: 3mm - Ø4mm (📦 #11067)

1 object(s) - format STL

3D honeycomb square grid model as a STL file. Mounting holes are placed at the four corners (center-to-center 42x42 mm), each with a diameter of Ø4 mm. The overall dimensions reach 50x50 mm, with very fine 3 mm cell size for maximum protection. This type of grid provides mechanical protection and ventilation.

Parameter	Value	Unit
length or center-to-center	42	mm
width or center-to-center	42	mm
mesh size	3	mm
dual color	no
holes	yes
hole diameter	4	mm

Protective grid STL file, center-to-center: 80x80mm, mesh: 10mm - Ø4mm (📦 #11035)

1 object(s) - format STL

Square protective honeycomb grid model in STL format. Mounting holes are placed at the four corners (center-to-center 80x80 mm), each with a diameter of Ø4 mm. The overall dimensions reach 88x88 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	80	mm
width or center-to-center	80	mm
mesh size	10	mm
dual color	no
holes	yes
hole diameter	4	mm

Protective grid STL file, center-to-center: 100x100mm, mesh: 3mm - Ø3mm (📦 #11032)

1 object(s) - format STL

Download this 3D honeycomb protective square grid as a STL file. Mounting holes are placed at the four corners (center-to-center 100x100 mm), each with a diameter of Ø3 mm. The overall dimensions reach 106x106 mm, with very fine 3 mm cell size for strong protection. This type of grid serves both protection and ventilation roles.

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

Protective grid STL 3D file, center-to-center: 90x90mm, mesh: 8mm - Ø4mm (📦 #11028)

1 object(s) - format STL

Honeycomb square grid model in STL format. Mounting holes are placed at the four corners (center-to-center 90x90 mm), each with a diameter of Ø4 mm. The overall dimensions reach 98x98 mm, with open 8 mm cell size to enhance ventilation. This grid acts as a protective guard while allowing airflow.

Parameter	Value	Unit
length or center-to-center	90	mm
width or center-to-center	90	mm
mesh size	8	mm
dual color	no
holes	yes
hole diameter	4	mm

Honeycomb grid STL 3D file, 220x120mm, mesh: 10mm (📦 #10997)

1 object(s) - format STL

Rectangular grid file in STL format. The overall size is 220x120 mm, with extra wide 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	220	mm
width or center-to-center	120	mm
mesh size	10	mm
dual color	no
holes	no

Honeycomb grille STL file, center-to-center: 40x40mm, mesh: 5mm - Ø5mm (📦 #10978)

1 object(s) - format STL

Square protective grid file in STL format. Mounting holes are placed at the four corners (center-to-center 40x40 mm), each with a diameter of Ø5 mm. The overall dimensions reach 50x50 mm, with standard 5 mm cell size for versatile use. This grid provides both mechanical protection and airflow.

Parameter	Value	Unit
length or center-to-center	40	mm
width or center-to-center	40	mm
mesh size	5	mm
dual color	no
holes	yes
hole diameter	5	mm

Honeycomb grille STL 3D file, center-to-center: 100x100mm, mesh: 5mm - Ø5mm (📦 #10977)

1 object(s) - format STL

3D square honeycomb grid model in STL format. Mounting holes are placed at the four corners (center-to-center 100x100 mm), each with a diameter of Ø5 mm. The overall dimensions reach 110x110 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	100	mm
width or center-to-center	100	mm
mesh size	5	mm
dual color	no
holes	yes
hole diameter	5	mm

Honeycomb grille STL file, center-to-center: 150x150mm, mesh: 5mm - Ø5mm (📦 #10976)

1 object(s) - format STL

Download this 3D honeycomb protective square grid as a STL file. Mounting holes are placed at the four corners (center-to-center 150x150 mm), each with a diameter of Ø5 mm. The overall dimensions reach 160x160 mm, with standard 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	150	mm
width or center-to-center	150	mm
mesh size	5	mm
dual color	no
holes	yes
hole diameter	5	mm

Honeycomb grid STL 3D file, center-to-center: 200x200mm, mesh: 7mm - Ø5mm (📦 #10975)

1 object(s) - format STL

Download this square grid as a STL file. Mounting holes are placed at the four corners (center-to-center 200x200 mm), each with a diameter of Ø5 mm. The overall dimensions reach 210x210 mm, with open 7 mm cell size to maximize airflow. This grid serves as both a protective guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	200	mm
width or center-to-center	200	mm
mesh size	7	mm
dual color	no
holes	yes
hole diameter	5	mm

Honeycomb grille STL 3D file, center-to-center: 250x250mm, mesh: 7mm - Ø5mm (📦 #10974)

1 object(s) - format STL

3D square honeycomb grid model as a STL file. Mounting holes are placed at the four corners (center-to-center 250x250 mm), each with a diameter of Ø5 mm. The overall dimensions reach 260x260 mm, with open 7 mm cell size to enhance 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	250	mm
mesh size	7	mm
dual color	no
holes	yes
hole diameter	5	mm

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.