
3 mm Spacers and Inserts: 3D Models and STL Files
This collection gathers STL files where a 3 mm dimension defines the part: spacers, clips, inserts and small adapters. It helps when a piece has to sit around a rod, cable, magnet or panel without wobbling. Check the author's page for the exact size, material and print orientation before starting. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.
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Auswahlregeln: Polyzon-Redaktion · Text aktualisiert: 15.10.2026
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Alle Modelle dieser Sammlung

Radius Gauge 2 to 30mm Inner and Outer Diameter Sets

Ender 3 V2 Riser Feet 25 & 35 mm

反曲弓旋羽划线器-支持3.2mm和4.2mm内径的箭

Stripe Cutter Set, 3-5-7 mm, Cake-Clay Polymer Cutter Tool

Filament Spool Clip for 3 mm and 1.75 mm

台灯线卡 手机支架线卡 顶部开口 3.5mm ~ 6.5mm

Cabo para agulha de crochê de 3mm

1-2-3-speeds switch mount for e-bike (handlebar 22 mm)

Perni 3mm 3x10 3x15 3x20 3x25 3x30

Diffuser overlay for front bumper. universal. thickness 3mm

Crypt Ghoul - DnD Miniature Figurine

70mm Container with 3 Thread Lid

Ender 3 Direct Drive BMG V6 Bracket

GU 5.3 Led Spotlight housing 95 mm height

Holder for Ikea Skadis Board using 6 mm diameter and height 3 mm magnets

Coins 3cm

M3 Screw Spacers | 17 Sizes (3-35mm)

Extruder-filament moving unit for 3 and 1.75 mm

Block 3x3x3mm

gabarito colagem caixa acrilico 3mm

Plug housing 3 PIN 2.8 mm MALE&FEMALE (for e-bike, scooter e t.c.)

3CM版本

bracket 20mm x 20mm hole 3mm

Woodworking Marking Gauge Tool

Fugen T-Stücke (3 mm)

30mm Mica Holder

Griffin Armament Suppressor Tool
Spacer 3

3mm/30 mm visual guide to help with modeling & design

120mm PC Fan Raspberry Pi Housing

3cm cutting jig

3cm hook for 65mm cubicle wall

Stackable Sieve (~1 / 2 / 3 / 4 mm holes)

hole cover for 7 mm, 4 mm, 3 mm

Lamp shade 30.5mm hole
Lasercut kitchen drawers - 3 mm

台灯线卡 手机支架线卡 侧面开口 3.5mm ~ 6.5mm

Collare di supporto canalina da 32mm

3 mm MDF Laser-cut Spice Rack

Cable Clip 3mm Diameter

Cale de 3mm

NozzleTag - Tags for nozzle sizes

3cm

바퀴 3
«3 mm Spacers and Inserts: 3D Models and STL Files»
The files range from parts that set a distance, such as spacers and risers, to parts that grip or route something, such as clips and holders. Inserts and organizers usually have cavities or cutouts sized around a 3 mm object, while gauges and cutters use the dimension as a measuring or cutting reference. Small pins and fittings are closer to mechanical hardware and often need tighter clearance checks.
On the author's page, read the stated outer and inner dimensions, wall thickness and the number of separate pieces. For a 3 mm feature, layer height and nozzle diameter affect how cleanly a hole or slot comes out, so check the print orientation and whether supports are mentioned. If the part must slide over a rod or cable, note the clearance the author gives and compare it with your own measurement.
Try synonyms such as spacer, shim, insert, clip, holder, adapter, gauge or pin, and add the object the part touches, for example cable, filament, magnet or panel. Related searches can include wall thickness, inner diameter, outer diameter, slot width or clearance. If a result is close but not exact, look at remixes or parametric versions that let you adjust the 3 mm dimension.
Häufige Fragen
What does 3 mm refer to in these models?
How do I choose between a spacer, clip and insert?
What should I check before printing a 3 mm part?
Can I scale a 3 mm model to another size?
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