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Honeycomb grille STL 3D file, center-to-center: 110x110mm, mesh: 4mm - Ø8mm

Honeycomb grille STL file, 200x200mm, mesh: 6mm

L-bracket 200×200 mm STL file, thickness 5 mm, hole diameter 6 mm

L-bracket 120×250 mm STL file, thickness 12 mm, hole diameter 6 mm

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 50×50 mm, thickness 2 mm

Clip-on tube holder Ø32 mm STL file · Flat head screw Ø4 mm

Round air vent STL 3D file ∅ 152 mm, slat angle: 45° with central reinforcement

Enclosure with screw-mounted lid STL 3D file: 80×50×35 mm (with ventilation on the lid)

Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 50×10 mm, thickness 2 mm + offset

Round air vent STL file ∅ 300 mm, slat angle: 30° with central reinforcement

The easiest way to get custom 3D files!

Featured Model

U-shaped handle STL 3D file 50×100×20 mm (Center-to-center 80 mm) 📦 #945

1 object(s) - format STL

Latest model generated online:

Shelf bracket 125×100 mm STL file, thickness 12 mm, hole diameter 5 mm 📦 #3580

1 object(s) - format STL

From the blog

Modify 3D geometry in the slicer

2025-11-14 · 3D Modeling · sylvain

Editing 3D geometry without CAD software is absolutely possible!

In this article, you’ll learn how to tweak your models directly in your slicer. It’s the perfect approach when the generated model is almost right but still needs a small adjustment.

You’ll see how to rescale a part, work axis by axis, and even compensate for a missing step size in the template, with concrete examples like the honeycomb grid and snap-on pipe clip holders.

We’ll also look at the slicer’s advanced editing tools: adding volumes, subtracting geometry, embossed or debossed text, and custom holes — all simple operations that let you adapt an existing STL with zero CAD skills.

A practical, quick, and handy guide to personalize your prints in just a few clicks!

Read the article

A selection of custom 3D models

📦 Model #1019

1 object(s)

- format STL

O-ring STL file ID 17 × CS 2.5 mm

File of rubber ring with ID (inner diameter) 17 mm / CS 2.5 mm. Outer diameter (OD) resulting corresponds to 22 mm.

Parameter	Value	Unit
inner diameter (ID)	17	mm
cross section (CS)	2.5	mm

📦 Model #963

1 object(s)

- format STL

U-shaped handle STL 3D file 50×140×10 mm (Center-to-center 130 mm)

Download this STL file of a simple U-shaped drawer handle. The external dimensions are 50×140×10 mm. This handle features a square section and a 90-degree transition. A fillet ensures a more comfortable grip. The holes are 6 mm diameter and have a 130 mm center-to-center distance.

Parameter	Value	Unit
width	50	mm
length	140	mm
thickness	10	mm
shape (0:square,1:circle)	0
transition (0:right,1:rounded)	0
fillet radius	1	mm
hole diameter	6	mm

📦 Model #945

1 object(s)

- format STL

U-shaped handle STL 3D file 50×100×20 mm (Center-to-center 80 mm)

Download this STL 3D model of a U-shaped handle. The external dimensions are 50×100×20 mm. This handle features a square profile combined with a 90-degree transition. A fillet allows for a better tactile feel. The openings are 6 mm diameter with a center-to-center distance of 80 mm.

Parameter	Value	Unit
width	50	mm
length	100	mm
thickness	20	mm
shape (0:square,1:circle)	0
transition (0:right,1:rounded)	0
fillet radius	1	mm
hole diameter	6	mm

📦 Model #3425

1 object(s)

- format STL

Tubing adapter STL file ⌀ 115–62 mm (Length: 100 mm)

Straight tube fitting ⌀115 mm to ⌀62 mm in STL format. Length of this fitting is 100 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 40 mm. The ends are rounded on the outside to ease the connection.

Parameter	Value	Unit
side A length	30	mm
side A outer diameter	115	mm
side A thickness	2	mm
side B length	40	mm
side B outer diameter	62	mm
side B thickness	2	mm
transition length	30	mm
axis offset	0	mm
ends fillet	fillet on th...

📦 Model #3384

1 object(s)

- format STL

Washer / Flat Gasket STL file ⌀ID: 262.5 mm ⌀OD: 300 mm thickness: 6 mm

3D model of gasket / washer in STL format. This model features an inner diameter of ⌀262.5 mm and an outer diameter of ⌀300 mm. The part thickness is 6 mm. There is no finish available.

Parameter	Value	Unit
inner diameter	262.5	mm
outer diameter	300	mm
thickness	6	mm
finish	none

📦 Model #3410

1 object(s)

- format STL

Tube adapter STL 3D file ⌀ 37–33 mm (Length: 80 mm)

Inline tubing adapter ⌀37 mm to ⌀33 mm in STL format. Final length of this junction is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends are not rounded.

Parameter	Value	Unit
side A length	30	mm
side A outer diameter	37	mm
side A thickness	2	mm
side B length	30	mm
side B outer diameter	33	mm
side B thickness	2	mm
transition length	20	mm
axis offset	0	mm
ends fillet	no fillet

📦 Model #1509

1 object(s)

- format STL

Round-to-Rectangular Tube Adapter STL 3D file ⌀65 mm to 60×30 mm, thickness 2 mm

File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀65 mm and a rectangular section with inner dimensions 60×30 mm. The wall thickness is 2 mm and the overall length is 80 mm. A chamfer is present on the inside of the rectangular end to ease insertion.

Parameter	Value	Unit
cylinder outer diameter	65	mm
cylinder inlet length	10	mm
rectangle internal length	60	mm
rectangle internal height	30	mm
rectangle inlet length	5	mm
offset Z	0	mm
offset Y	0	mm
total length	80	mm
thickness	2	mm
chamfer	chamfer on t...

📦 Model #1149

2 object(s)

- format STL

Enclosure with screw-mounted lid STL 3D file: 300×100×60 mm

Enclosure model with screwed lid in STL format. The dimensions are 300 mm long by 100 mm wide and 60 mm high. The lid is 20 mm high. Wall thickness is 5 mm. The enclosure does not have cooling.

Parameter	Value	Unit
length	300	mm
width	100	mm
total height	60	mm
lid height	20	mm
wall thickness	5	mm
screw margin	0	mm
fit clearance	0.1	mm
cooling zone(s)	no cutouts

📦 Model #1247

2 object(s)

- format STL

Enclosure with screw-mounted lid STL file: 200×130×60 mm (with ventilation on the lid and under the enclosure)

Enclosure with screwed lid in 3D STL format. The dimensions are 200 mm long by 130 mm wide and 60 mm high. The cover only is 10 mm high. Wall thickness is 3 mm. This enclosure features cooling area on the lid and under the base.

Parameter	Value	Unit
length	200	mm
width	130	mm
total height	60	mm
lid height	10	mm
wall thickness	3	mm
screw margin	0	mm
fit clearance	0.1	mm
cooling level	3
cooling zone(s)	cutouts on b...

📦 Model #3409

1 object(s)

- format STL

Tubing adapter STL 3D file ⌀ 155–103 mm (Length: 130 mm)

Inline tube junction ⌀155 mm to ⌀103 mm in STL format. Final length of this reducer is 130 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 60 mm, the smaller one of 40 mm. The two axes of the tubes are offset by 25.4 mm. The ends have a fillet to facilitate the connection of the two tubes.

Parameter	Value	Unit
side A length	60	mm
side A outer diameter	155	mm
side A thickness	3	mm
side B length	40	mm
side B outer diameter	103	mm
side B thickness	3	mm
transition length	30	mm
axis offset	25.4	mm
ends fillet	fillet on bo...

📦 Model #3441

1 object(s)

- format STL

Honeycomb grille STL file, 250x150mm, mesh: 6mm

3D rectangular grid file in STL format. The overall size is 250x150 mm, with large 6 mm cell size to enhance ventilation. This grid provides both mechanical protection and airflow.

Parameter	Value	Unit
length or center-to-center	250	mm
width or center-to-center	150	mm
mesh size	6	mm
dual color	no
holes	no

📦 Model #1138

2 object(s)

- format STL

Enclosure with screw-mounted lid STL file: 100×60×30 mm (with ventilation on the lid and under the enclosure)

Download this enclosure with lid in 3D STL format. The dimensions are 100 mm long by 60 mm wide and 30 mm high. The cover is 15 mm high. Wall thickness is 3 mm. This enclosure has significant cooling area on the lid and under the base.

Parameter	Value	Unit
length	100	mm
width	60	mm
total height	30	mm
lid height	15	mm
wall thickness	3	mm
screw margin	0.4	mm
fit clearance	0.2	mm
cooling level	5
cooling zone(s)	cutouts on b...

📦 Model #3452

1 object(s)

- format STL

Washer / Flat Gasket STL file ⌀ID: 8 mm ⌀OD: 15 mm thickness: 2.2 mm + chamfer

3D file of flat gasket / washer in STL file format. This part has an internal diameter of ⌀8 mm and an external diameter of ⌀15 mm. The part thickness is 2.2 mm. A chamfer is present on the internal diameter with a value of 1.2 mm.

Parameter	Value	Unit
inner diameter	8	mm
outer diameter	15	mm
thickness	2.2	mm
finish	chamfer
finish position	inner
sides	one side
finish value	1.2	mm

📦 Model #880

1 object(s)

- format STL

U-shaped handle STL file 35×140×14 mm (Center-to-center 126 mm)

Download this STL 3D model of a simple U-shaped furniture handle. The external dimensions are 35×140×14 mm. This handle features a circular section and a right-angled transition. The mounting holes are 4 mm diameter with a center-to-center distance of 126 mm.

Parameter	Value	Unit
width	35	mm
length	140	mm
thickness	14	mm
shape (0:square,1:circle)	1
transition (0:right,1:rounded)	0
fillet radius	0	mm
hole diameter	4	mm

📦 Model #1909

1 object(s)

- format STL

Pipe elbow STL file 60° ⌀OD: 50 mm ⌀ID: 40.5 mm thickness: 4.75 mm

3D model of an elbow with a 60° angle in STL format. This elbow has an external diameter of 50 mm and an internal diameter of 40.5 mm. This results in a tube thickness of 4.75 mm.

Parameter	Value	Unit
outer diameter	50	mm
inner diameter	40.5	mm
angle	60	°
end fillets	no

📦 Model #998

1 object(s)

- format STL

U-shaped handle STL file 50×140×20 mm (Center-to-center 120 mm)

Download this STL 3D model of a simple U-shaped furniture handle. The external dimensions are 50×140×20 mm. This handle features a square section and a 90-degree transition. A light fillet ensures a more pleasant grip. The holes are 5 mm diameter with a center-to-center distance of 120 mm.

Parameter	Value	Unit
width	50	mm
length	140	mm
thickness	20	mm
shape (0:square,1:circle)	0
transition (0:right,1:rounded)	0
fillet radius	1	mm
hole diameter	5	mm

📦 Model #3295

1 object(s)

- format STL

Tube support clip Ø100 mm STL 3D file · Flat head screw Ø3 mm

Download this 3D file of a Ø100 mm snap-on pipe clip in STL format. The installation is done with a flat head screw Ø3 mm. This snap-on pipe clip is built for a secure hold and quick installation.

Parameter	Value	Unit
tube diameter	100	mm
hole diameter	3	mm
countersunk screw	yes

📦 Model #3371

1 object(s)

- format STL

Box STL file with dimensions 50×50×100 mm

This single-compartment box design offers a single cavity measuring 50×50×100mm. Overall dimensions of the box are 70×70×110mm. The fillet of 10mm makes it easier to grasp objects inside the box. The separators are particularly sturdy.

Parameter	Value	Unit
number of rows	1
number of columns	1
compartment length	50	mm
compartment width	50	mm
compartment height	100	mm
wall thickness	10	mm
compartment fillet (radius)	10	mm

📦 Model #3471

1 object(s)

- format STL

Tubing elbow STL 3D file 89° ⌀OD: 76 mm ⌀ID: 72 mm thickness: 2 mm

Model of a pipe elbow with an 89° angle in STL format. This elbow has an external diameter of 76 mm and an internal diameter of 72 mm. This results in a tube thickness of 2 mm.

Parameter	Value	Unit
outer diameter	76	mm
inner diameter	72	mm
angle	89	°
end fillets	no

📦 Model #808

1 object(s)

- format STL

U-shaped handle STL file 35×100×10 mm (Center-to-center 90 mm)

Download this STL 3D file of a simple U-shaped furniture handle. The external dimensions are 35×100×10 mm. This handle features a round cross-section and a straight transition. The bores are 4 mm diameter and have a 90 mm center-to-center distance.

Parameter	Value	Unit
width	35	mm
length	100	mm
thickness	10	mm
shape (0:square,1:circle)	1
transition (0:right,1:rounded)	0
fillet radius	0	mm
hole diameter	4	mm

📦 Model #2120

2 object(s)

- format STL

Enclosure with screw-mounted lid STL 3D file: 40×40×20 mm (with ventilation on the lid)

Download this enclosure model with lid in STL format. The dimensions are 40 mm long by 40 mm wide and 20 mm high. The lid only is 10 mm high. Wall thickness is 5 mm. This enclosure features marked cooling area on the lid.

Parameter	Value	Unit
length	40	mm
width	40	mm
total height	20	mm
lid height	10	mm
wall thickness	5	mm
screw margin	0	mm
fit clearance	0.1	mm
cooling level	5
cooling zone(s)	cutouts on t...

📦 Model #3447

1 object(s)

- format STL

Washer / Flat Gasket STL file ⌀ID: 9 mm ⌀OD: 18 mm thickness: 2.8 mm + chamfer

Download this 3D file of flat gasket / washer in STL 3D file format. This part features an inner diameter of ⌀9 mm and an outer diameter of ⌀18 mm. The total thickness is 2.8 mm. A chamfer is present on the inner diameter with a value of 1.2 mm.

Parameter	Value	Unit
inner diameter	9	mm
outer diameter	18	mm
thickness	2.8	mm
finish	chamfer
finish position	inner
sides	one side
finish value	1.2	mm

📦 Model #3383

2 object(s)

- format STL

Round box with lid STL file ⌀ 110 mm - Height: 20 mm, Shell: 3 mm

Get this circular box in 3D STL format. Its diameter is 110 mm and its total height is 20 mm. The wall thickness is 3 mm.

Parameter	Value	Unit
external diameter	110	mm
total height	20	mm
wall thickness	3	mm
fit clearance	0.1	mm
inner bottom fillet	0	mm

📦 Model #861

1 object(s)

- format STL

U-shaped handle STL file 35×140×10 mm (Center-to-center 130 mm)

Download this STL 3D model of a U-shaped furniture handle. The overall dimensions are 35×140×10 mm. This handle has a square cross-section combined with a smooth transition. A fillet along the edges allows for a more comfortable grip. The holes are 6 mm diameter and have a 130 mm center-to-center distance.

Parameter	Value	Unit
width	35	mm
length	140	mm
thickness	10	mm
shape (0:square,1:circle)	0
transition (0:right,1:rounded)	1
fillet radius	1	mm
hole diameter	6	mm

📦 Model #2197

1 object(s)

- format STL

Tube adapter STL 3D file ⌀ 35–29 mm (Length: 55 mm)

Inline tube reducer ⌀35 mm to ⌀29 mm in STL 3D format. Final length of this junction is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends feature a fillet to facilitate the connection of the two tubes.

Parameter	Value	Unit
side A length	20	mm
side A outer diameter	35	mm
side A thickness	3	mm
side B length	20	mm
side B outer diameter	29	mm
side B thickness	3	mm
transition length	15	mm
axis offset	0	mm
ends fillet	fillet on bo...

📦 Model #3442

1 object(s)

- format STL

Honeycomb grille STL file, 160x160mm, mesh: 6mm

3D square protective grid file in STL format. The overall size is 160x160 mm, with large 6 mm cell size to enhance ventilation. This grid serves as both a protective guard and a ventilation panel.

Parameter	Value	Unit
length or center-to-center	160	mm
width or center-to-center	160	mm
mesh size	6	mm
dual color	no
holes	no

📦 Model #1156

2 object(s)

- format STL

Enclosure with screw-mounted lid STL file: 80×80×20 mm

Download this enclosure model with screwed lid in STL format. The dimensions are 80 mm long by 80 mm wide and 20 mm high. The lid only is 15 mm high. Wall thickness is 4 mm. The enclosure does not have cooling.

Parameter	Value	Unit
length	80	mm
width	80	mm
total height	20	mm
lid height	15	mm
wall thickness	4	mm
screw margin	0	mm
fit clearance	0.1	mm
cooling zone(s)	no cutouts

📦 Model #1477

1 object(s)

- format STL

Tube adapter STL file ⌀ 110–100 mm (Length: 270 mm)

Diameter adapter ⌀110 mm to ⌀100 mm in STL format. Final length of this sleeve is 270 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 150 mm, the smaller one of 100 mm. The ends have a fillet on the outside.

Parameter	Value	Unit
side A length	150	mm
side A outer diameter	110	mm
side A thickness	5	mm
side B length	100	mm
side B outer diameter	100	mm
side B thickness	5	mm
transition length	20	mm
axis offset	0	mm
ends fillet	fillet on th...

📦 Model #3463

1 object(s)

- format STL

Tubing adapter STL 3D file ⌀ 68–45 mm (Length: 75 mm)

Straight tube fitting ⌀68 mm to ⌀45 mm in STL format. Length of this fitting is 75 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends have no fillet.

Parameter	Value	Unit
side A length	30	mm
side A outer diameter	68	mm
side A thickness	3	mm
side B length	30	mm
side B outer diameter	45	mm
side B thickness	3	mm
transition length	15	mm
axis offset	0	mm
ends fillet	no fillet

📦 Model #3310

1 object(s)

- format STL

Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 94.6×73 mm, thickness 2 mm + offset

Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀106 mm and a rectangular section with inner dimensions 94.6×73 mm. The shell thickness is 2 mm and the overall length is 200 mm. The adapter has an offset of 25 mm along the Y axis.

Parameter	Value	Unit
cylinder outer diameter	106	mm
cylinder inlet length	50	mm
rectangle internal length	94.6	mm
rectangle internal height	73	mm
rectangle inlet length	100	mm
offset Z	0	mm
offset Y	25	mm
total length	200	mm
thickness	2	mm
chamfer	no chamfer

STL: Advantages and Disadvantages for 3D Printing

The STL format is, without question, a cornerstone of 3D printing. This exchange format has established itself as the universal standard for representing 3D models ever since the early days of stereolithography. Its main strength lies in its simplicity: it describes the surface of an object using countless small triangles that form a mesh. This approach, known as tessellation, makes STL 3D files universally compatible with nearly all CAD software and slicers. If you’d like to learn more about this format, check out our article STL: What Is This 3D File Format?.

One of the major advantages of the format lies in this universality: whether you’re using a complex modeling program or a simpler design tool, you can export your 3D models in STL 3D format with near certainty that they’ll be interpreted correctly by your 3D printer. This ease of exchange has played a key role in the widespread adoption of 3D printing, allowing anyone to share and print objects without worrying about software compatibility. Once again, simplicity is its greatest strength.

However, that same simplicity also brings certain limitations. The triangle mesh, while effective for describing geometry, contains no information about colors, textures, or materials. For more advanced projects requiring these details, the STL format starts to show its weaknesses. Additionally, print quality depends directly on the fineness of the tessellation: too few triangles can lead to rough or faceted surfaces, while an overly dense mesh can make the file unnecessarily heavy.

Another notable drawback is the lack of unit management. An STL file doesn’t specify whether dimensions are in millimeters, centimeters, or inches, which can sometimes cause scaling errors when importing into a slicer. Despite these limitations, the STL format remains the go-to standard for converting your 3D models into G-code — the language your printer understands. It continues to be the preferred choice for its robustness and broad compatibility, even as newer formats like 3MF emerge for more specialized needs.

What is parametric modeling?

Parametric modeling is a fundamental approach in computer-aided design (CAD) that reshapes how 3D models are created and managed. Far from being a simple drawing technique, it represents a genuine design philosophy where objects are defined not by fixed shapes, but by variables and intelligent relationships.

This method makes it possible to modify the length, width, or diameter of a part and have the entire design adapt automatically, without the need to redraw everything. At the core of the process are parameters—numerical values (length, angle, thickness, etc.)—linked together through constraints and formulas. For instance, the diameter of a hole can be defined as half the width of a plate; if the width changes, the hole’s diameter instantly adjusts, ensuring the consistency of the design. This interdependence makes 3D models flexible and responsive to changes. One of the main advantages of parametric modeling lies in its ability to simplify customization and enable rapid iteration of designs.

Whether through modeling software such as Fusion 360 or FreeCAD, or through code-based libraries like build123d, this approach allows effortless exploration of a wide range of variations. Such flexibility is especially valuable across multiple fields—from mechanical engineering and architecture to consumer product design. It saves considerable time, reduces errors, and improves the performance of parts.

By defining design intent from the start through these parameters and constraints, the model preserves its integrity and functionality even after numerous modifications. It is a powerful way to transform an idea into a tangible object, ready to adapt to new situations.