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Pipe elbow 180° ⌀OD: 18 mm ⌀ID: 16 mm thickness: 1 mm

Tube adapter ⌀ 50–40 mm (Length: 45 mm )

Round air vent ∅ 93.6 mm, angle 30°

Pipe elbow 30° ⌀OD: 60 mm ⌀ID: 58 mm thickness: 1 mm

Tube adapter ⌀ 100–16 mm (Length: 110 mm)

Tube adapter ⌀ 60–30 mm (Length: 140 mm)

Round air vent ∅ 90 mm, slat angle: 35°

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

Pipe elbow 120° ⌀OD: 40 mm ⌀ID: 34 mm thickness: 3 mm

Multi-compartment box: 3 compartments of 45×45×45 mm

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Featured Model

Rectangular prism 100×31×68 mm 📦 #773

1 object(s) - format STL

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Tube adapter ⌀ 50–39 mm (Length: 390 mm) 📦 #1461

1 object(s) - format STL

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More than just a 3d file dump

2025-08-24 · features · sylvain

More than just a simple accumulation of 3D files, iteration3d.fr changes the game !

The platform stands out with a unique approach : a structured library of 3D models, designed to help you find the exact model you need quickly and precisely.

Thanks to its multi-criteria search engines integrated into each template, refine your searches based on one or several parameters, give more weight to the ones that matter most, and get results sorted by relevance.

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Some custom 3D models generated online

📦 Model #1124

1 object(s)

- format STL

Tube adapter ⌀ 50–40 mm (Length: 50 mm)

Straight tube coupler ⌀50 mm to ⌀40 mm in STL format. Length of this reducer is 50 mm. The thickness of the tubes is identical: 2 mm. The ends have a fillet.

Parameter	Value	Unit
side A length	20	mm
side A outer diameter	50	mm
side A thickness	2	mm
side B length	20	mm
side B outer diameter	40	mm
side B thickness	2	mm
transition length	10	mm
axis offset	0	mm
ends fillet	3	0,1,2,3

📦 Model #981

1 object(s)

- format STL

U-shaped handle 50×140×14 mm (Center-to-center 126 mm)

Download this 3D model of a basic U-shaped handle. The external dimensions are 50×140×14 mm. This handle has a square section and a right-angled transition. A light fillet produces a more comfortable grip. The openings are 6 mm diameter and have a 126 mm center-to-center distance.

Parameter	Value	Unit
width	50	mm
length	140	mm
thickness	14	mm
shape (0:square,1:circle)	0
transition (0:right,1:rounded)	0
fillet radius	1	mm
hole diameter	6	mm

📦 Model #773

1 object(s)

- format STL

Rectangular prism 100×31×68 mm

A STL 3D model of a box. The overall dimensions are 100×31×68 mm. A small fillet softens all the edges.

Parameter	Value	Unit
length	100	mm
width	31	mm
height	68	mm
fillet radius	2	mm

📦 Model #850

1 object(s)

- format STL

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

Download this STL 3D model of a simple U-shaped furniture handle. The external dimensions are 35×140×10 mm. This handle features a square section and a 90-degree transition. The bores are 4 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)	0
fillet radius	0	mm
hole diameter	4	mm

📦 Model #1194

8 object(s)

- format STL

Color-coded compartment box: 28 compartments of 15×15×10 mm

This STL 3D model of a sorting box with colored rings features 28 cavities measuring 15×15×10 mm each. Overall dimensions of the box are 75×129×13 mm. Fillets of 2 mm applied to all compartments provide a better grip stored in the compartments.

Parameter	Value	Unit
number of rows	7
number of columns	4
compartment length	15	mm
compartment width	15	mm
compartment height	10	mm
wall thickness	3	mm
compartment fillet (radius)	2	mm
row colors	AB...

📦 Model #1315

1 object(s)

- format STL

Round air vent ∅ 100 mm, slat angle: 45°

Design of a round air vent for ventilation in STL format. Its male diameter is 100 mm. The slats have an angle of 45° and a low thickness of 1.6 mm. This vent grille has a thin flange of 5 mm.

Parameter	Value	Unit
male diameter	100	mm
slat angle	45	°
slat thickness	1.6	mm
flange width	5	mm
central reinforcement	0

📦 Model #1066

1 object(s)

- format STL

Multi-compartment box: 49 compartments of 30×30×40 mm

This STL file includes 49 cavities measuring 30×30×40mm each. External size are 226×226×42mm. A 4mm fillet applied to all compartments make it easier to grasp items stored in the compartments.

Parameter	Value	Unit
number of rows	7
number of columns	7
compartment length	30	mm
compartment width	30	mm
compartment height	40	mm
wall thickness	2	mm
compartment fillet (radius)	4	mm

📦 Model #1276

1 object(s)

- format STL

Round air vent ∅ 71.5 mm, slat angle: 40°

3D file of a round grille for air circulation in STL format. Its insertion diameter measures 71.5 mm. The slats have an angle of 40° and a low thickness of 1.4 mm. This vent cover features a thin flange of 5 mm.

Parameter	Value	Unit
male diameter	71.5	mm
slat angle	40	°
slat thickness	1.4	mm
flange width	5	mm
central reinforcement	0

📦 Model #1238

1 object(s)

- format STL

Tube adapter ⌀ 75–50 mm (Length: 100 mm)

Tube adapter ⌀75 mm to ⌀50 mm in STL format. Length of this sleeve is 100 mm. The thickness of the tubes is identical: 2 mm. The axes of the tubes are off-center. The ends are not rounded.

Parameter	Value	Unit
side A length	20	mm
side A outer diameter	75	mm
side A thickness	2	mm
side B length	20	mm
side B outer diameter	50	mm
side B thickness	2	mm
transition length	60	mm
axis offset	12.4	mm
ends fillet	0	0,1,2,3

📦 Model #824

1 object(s)

- format STL

U-shaped handle 35×100×14 mm (Center-to-center 86 mm)

Download this STL 3D file of a basic U-shaped handle. The external dimensions are 35×100×14 mm. The handle has a square section combined with a smooth transition. A light fillet along the edges allows for improved handling. The holes are 5 mm diameter with a center-to-center distance of 86 mm.

Parameter	Value	Unit
width	35	mm
length	100	mm
thickness	14	mm
shape (0:square,1:circle)	0
transition (0:right,1:rounded)	1
fillet radius	1	mm
hole diameter	5	mm

📦 Model #1387

1 object(s)

- format STL

Tube adapter ⌀ 155–90 mm (Length: 90 mm)

Inline sleeve ⌀155 mm to ⌀90 mm in STL format. Total length of this adapter is 90 mm. The thickness of the tubes is identical: 2 mm. The ends have a fillet on the outside to facilitate the connection of the two tubes.

Parameter	Value	Unit
side A length	20	mm
side A outer diameter	155	mm
side A thickness	2	mm
side B length	50	mm
side B outer diameter	90	mm
side B thickness	2	mm
transition length	20	mm
axis offset	0	mm
ends fillet	1	0,1,2,3

📦 Model #1296

1 object(s)

- format STL

Round air vent ∅ 140 mm, slat angle: 15° with central reinforcement

File of a round vent cover for air circulation in STL format. Its male diameter measures 140 mm. The slats have a slight angle of 15° and a low thickness of 1.6 mm. A vertical reinforcement secures the whole structure. This ventilation grille has a collar of 6 mm.

Parameter	Value	Unit
male diameter	140	mm
slat angle	15	°
slat thickness	1.6	mm
flange width	6	mm
central reinforcement	1

📦 Model #995

1 object(s)

- format STL

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

Download this STL 3D file of a simple U-shaped furniture handle. The external dimensions are 50×140×20 mm. The handle features a square profile and a 90-degree transition. 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	0	mm
hole diameter	5	mm

📦 Model #1407

1 object(s)

- format STL

Pipe elbow 75° ⌀OD: 28 mm ⌀ID: 26 mm thickness: 1 mm

File of a pipe elbow with a 75° angle in STL format. This elbow has an external diameter of 28 mm and an internal diameter of 26 mm. The tube thickness is therefore 1 mm.

Parameter	Value	Unit
outer diameter	28	mm
inner diameter	26	mm
angle	75	°
end fillets	0

📦 Model #1415

1 object(s)

- format STL

Round air vent ∅ 127 mm, slat angle: 45° with central reinforcement

Design of a round air vent for ventilation in STL format. Its male diameter measures 127 mm. The slats have an angle of 45° and a low thickness of 1.5 mm. A centered vertical reinforcement strengthens the whole structure. This 3D vent grille features a prominent flange of 20 mm.

Parameter	Value	Unit
male diameter	127	mm
slat angle	45	°
slat thickness	1.5	mm
flange width	20	mm
central reinforcement	1

📦 Model #1232

1 object(s)

- format STL

Tube adapter ⌀ 68–53 mm (Length: 65 mm)

Tube reducer ⌀68 mm to ⌀53 mm in STL format. Total length of this adapter is 65 mm. The thickness of the larger diameter tube is 2 mm, and the smaller one is 4 mm. The ends are not rounded.

Parameter	Value	Unit
side A length	25	mm
side A outer diameter	68	mm
side A thickness	2	mm
side B length	25	mm
side B outer diameter	53	mm
side B thickness	4	mm
transition length	15	mm
axis offset	0	mm
ends fillet	0	0,1,2,3

📦 Model #1385

1 object(s)

- format STL

Pipe elbow 170° ⌀OD: 45 mm ⌀ID: 43 mm thickness: 1 mm

3D model of an elbow with a 170° angle in STL format. This elbow has an external diameter of 45 mm and an internal diameter of 43 mm. This results in a tube thickness of 1 mm.

Parameter	Value	Unit
outer diameter	45	mm
inner diameter	43	mm
angle	170	°
end fillets	0

📦 Model #926

1 object(s)

- format STL

U-shaped handle 50×100×14 mm (Center-to-center 86 mm)

Download this 3D model of a simple U-shaped handle. The external dimensions are 50×100×14 mm. The handle has a square profile combined with a right-angled transition. A fillet produces a better tactile feel. The holes are 5 mm diameter and have a 86 mm center-to-center distance.

Parameter	Value	Unit
width	50	mm
length	100	mm
thickness	14	mm
shape (0:square,1:circle)	0
transition (0:right,1:rounded)	0
fillet radius	1	mm
hole diameter	5	mm

📦 Model #1091

1 object(s)

- format STL

Multi-compartment box: 6 compartments of 50×80×100 mm

This STL 3D model includes 6 storage spaces measuring 50×80×100mm each. Overall dimensions are 166×172×104mm. Fillets of 2mm applied to all compartments make it easier to grasp items stored in the compartments. The walls are particularly reinforced.

Parameter	Value	Unit
number of rows	2
number of columns	3
compartment length	50	mm
compartment width	80	mm
compartment height	100	mm
wall thickness	4	mm
compartment fillet (radius)	2	mm

📦 Model #1347

1 object(s)

- format STL

O-ring ID 150 × CS 2.5 mm

3D model in STL format of O-ring with Inner diameter 150 mm by CS (cross section) 2.5 mm. The outer diameter resulting is 155 mm.

Parameter	Value	Unit
inner diameter (ID)	150	mm
cross section (CS)	2.5	mm

📦 Model #1375

1 object(s)

- format STL

Pipe elbow 37° ⌀OD: 48 mm ⌀ID: 44 mm thickness: 2 mm

3D file of an elbow with a 37° angle in STL format. This elbow has an external diameter of 48 mm and an internal diameter of 44 mm. This results in a tube thickness of 2 mm. End fillets make it easier to insert.

Parameter	Value	Unit
outer diameter	48	mm
inner diameter	44	mm
angle	37	°
end fillets	1

📦 Model #1354

1 object(s)

- format STL

Pipe elbow 89° ⌀OD: 18 mm ⌀ID: 16 mm thickness: 1 mm

3D file of an elbow with an 89° angle in STL format. This pipe elbow has an outer diameter of 18 mm and an inner diameter of 16 mm. This results in a tube thickness of 1 mm.

Parameter	Value	Unit
outer diameter	18	mm
inner diameter	16	mm
angle	89	°
end fillets	0

📦 Model #979

1 object(s)

- format STL

U-shaped handle 50×140×14 mm (Center-to-center 126 mm)

Download this STL model of a basic U-shaped handle. The external dimensions are 50×140×14 mm. This handle has a square cross-section combined with a 90-degree transition. A light fillet along the edges allows for a more comfortable grip. The bores are 4 mm diameter with a center-to-center distance of 126 mm.

Parameter	Value	Unit
width	50	mm
length	140	mm
thickness	14	mm
shape (0:square,1:circle)	0
transition (0:right,1:rounded)	0
fillet radius	1	mm
hole diameter	4	mm

📦 Model #902

1 object(s)

- format STL

U-shaped handle 35×140×20 mm (Center-to-center 120 mm)

Download this 3D file of a simple U-shaped handle. The external dimensions are 35×140×20 mm. This handle has a round profile and a softened transition. The bores are 5 mm diameter with a center-to-center distance of 120 mm.

Parameter	Value	Unit
width	35	mm
length	140	mm
thickness	20	mm
shape (0:square,1:circle)	1
transition (0:right,1:rounded)	1
fillet radius	0	mm
hole diameter	5	mm

📦 Model #1350

1 object(s)

- format STL

Pipe elbow 180° ⌀OD: 18 mm ⌀ID: 16 mm thickness: 1 mm

File of an elbow with a 180° angle in STL format. This elbow has an external diameter of 18 mm and an internal diameter of 16 mm. This results in a tube thickness of 1 mm.

Parameter	Value	Unit
outer diameter	18	mm
inner diameter	16	mm
angle	180	°
end fillets	0

📦 Model #1330

2 object(s)

- format STL

Round box with lid ⌀ 120 mm - Height: 20 mm

Download this cylindrical box model in 3D STL format. Its diameter is 120 mm and its height is 20 mm. The walls have a thickness of 3 mm. A large fillet located at the bottom of the box makes it easier to grip objects located inside.

Parameter	Value	Unit
external diameter	120	mm
total height	20	mm
wall thickness	3	mm
fit clearance	0.1	mm
inner bottom fillet	3	mm

📦 Model #838

1 object(s)

- format STL

U-shaped handle 35×100×20 mm (Center-to-center 80 mm)

Download this STL file of a U-shaped handle. The overall dimensions are 35×100×20 mm. The handle features a square section combined with a rounded transition. The mounting holes are 4 mm diameter and have a 80 mm center-to-center distance.

Parameter	Value	Unit
width	35	mm
length	100	mm
thickness	20	mm
shape (0:square,1:circle)	0
transition (0:right,1:rounded)	1
fillet radius	0	mm
hole diameter	4	mm

📦 Model #1355

1 object(s)

- format STL

Pipe elbow 45° ⌀OD: 18 mm ⌀ID: 16 mm thickness: 1 mm

File of an elbow with a 45° angle in STL format. This elbow features an outer diameter of 18 mm and an inner diameter of 16 mm. This results in a tube thickness of 1 mm.

Parameter	Value	Unit
outer diameter	18	mm
inner diameter	16	mm
angle	45	°
end fillets	0

📦 Model #1394

1 object(s)

- format STL

Tube adapter ⌀ 70–69 mm (Length: 50 mm)

Tube adapter ⌀70 mm to ⌀69 mm in STL format. Total length of this adapter is 50 mm. The thickness of the tubes is identical: 2 mm. The ends have a fillet on the outside to facilitate the connection of the two tubes.

Parameter	Value	Unit
side A length	20	mm
side A outer diameter	70	mm
side A thickness	2	mm
side B length	20	mm
side B outer diameter	69	mm
side B thickness	2	mm
transition length	10	mm
axis offset	0	mm
ends fillet	1	0,1,2,3

📦 Model #977

1 object(s)

- format STL

U-shaped handle 50×140×14 mm (Center-to-center 126 mm)

Download this STL 3D file of a U-shaped handle. The overall dimensions are 50×140×14 mm. The handle features a square profile combined with a straight transition. The bores are 5 mm diameter with a center-to-center distance of 126 mm.

Parameter	Value	Unit
width	50	mm
length	140	mm
thickness	14	mm
shape (0:square,1:circle)	0
transition (0:right,1:rounded)	0
fillet radius	0	mm
hole diameter	5	mm