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Engineering – Free 3D Printable Models

Discover 8,761 free Engineering 3D models ready to download and print. Browse STL files from Printables, Thingiverse, MyMiniFactory, Cults3D, MakerWorld and MakerOnline.

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8,761 Models · Page 1/183
Children's Learning Clock – Free 3D Model STL MakerWorld
Children's Learning Clock
Olliwood89 1
True Involute Planetary Gearbox M3 10/11/32T, Ø125 – Free 3D Model STL MakerWorld
True Involute Planetary Gearbox M3 10/11/32T, Ø125
LenKu 5
CTC-BCPS-100 feedthrough 40mm – Free 3D Model STL MakerWorld
CTC-BCPS-100 feedthrough 40mm
RMWJ
Motorcycle Sleeve Jacket ventilation with card – Free 3D Model STL MakerWorld
Motorcycle Sleeve Jacket ventilation with card
Gc9n 8
Decorative plate for Panasonic device – Free 3D Model STL MakerWorld
Decorative plate for Panasonic device
Nunzzz
3D Printable Constant Speed Propeller – Free 3D Model STL MakerWorld
3D Printable Constant Speed Propeller
Linus3d 511
Basic Engineering Stencil – Free 3D Model STL MakerWorld
Basic Engineering Stencil
pixeledstar 1
Lightning Network Model – Free 3D Model STL MakerWorld
Lightning Network Model
りぶらぽ 1
Differential Screw - Micro Adjustment Mechanism – Free 3D Model STL MakerWorld
Differential Screw - Micro Adjustment Mechanism
Brandon Raineri 3
Breadboard Jumper Organizers (M-M, F-F, M-F) – Free 3D Model STL MakerWorld
Breadboard Jumper Organizers (M-M, F-F, M-F)
johnsant006 1
Modular conveyor for JGA25-370 12V Motor – Free 3D Model STL MakerWorld
Modular conveyor for JGA25-370 12V Motor
Thuesen 19
Wing mounts – Free 3D Model STL MakerWorld
Wing mounts
FractalZ06 16
Vex Turntable V5 Motor Adapter – Free 3D Model STL MakerWorld
Vex Turntable V5 Motor Adapter
FE_Tech
Wire Discharge Unit – Free 3D Model STL MakerWorld
Wire Discharge Unit
Cemil Belen
Wire Erosion Chamfer – Free 3D Model STL MakerWorld
Wire Erosion Chamfer
Cemil Belen
V8 vacuum engine – Free 3D Model STL MakerWorld
V8 vacuum engine
user_3849210958 1
4 speed fully 3d printed transmission v2 – Free 3D Model STL MakerWorld
4 speed fully 3d printed transmission v2
mm19 17
Neewer Ringlight 18 Color Diffuser – Free 3D Model STL MakerWorld
Neewer Ringlight 18 Color Diffuser
AfroPanda 5
V-Twin Air Engine — MK5 – Free 3D Model STL MakerWorld
V-Twin Air Engine — MK5
MagneticPropulsionNoFuel 8
SlotMag - magnetic insert for sockets – Free 3D Model STL MakerWorld
SlotMag - magnetic insert for sockets
Totem 2
AJS Model 14 250 – Free 3D Model STL MakerWorld
AJS Model 14 250
nuttdwarf
Ajs Model 14 250 Crank Case – Free 3D Model STL MakerWorld
Ajs Model 14 250 Crank Case
nuttdwarf
Cover Spacemouse Compact – Free 3D Model STL MakerWorld
Cover Spacemouse Compact
Florian Koller 1
Gear Rack & Pinion Slider (customizable length) – Free 3D Model STL MakerWorld
Gear Rack & Pinion Slider (customizable length)
3Core 91
Repair Kit Hood Handles Passat – Free 3D Model STL MakerWorld
Repair Kit Hood Handles Passat
Viktor_Khylko 2
SUPER Mighty Jr. - Mudguards – Free 3D Model STL MakerWorld
SUPER Mighty Jr. - Mudguards
Super Bicycles 4
Pigeon Mount + Swerve Screw Spacers – Free 3D Model STL MakerWorld
Pigeon Mount + Swerve Screw Spacers
user_1908417638
FRC 9580 Swerve Screw Spacer – Free 3D Model STL MakerWorld
FRC 9580 Swerve Screw Spacer
user_1908417638 2
Samsung Galaxy S26 Ultra 3D Model – Free 3D Model STL MakerWorld
Samsung Galaxy S26 Ultra 3D Model
CreOx CAD 3
Headphone Holder for Skadis with TPU Cushion – Free 3D Model STL MakerWorld
Headphone Holder for Skadis with TPU Cushion
Shin 2
Square test holtsmark – Free 3D Model STL MakerWorld
Square test holtsmark
johnkenny393
Unimat SL Tailstock 20mm Extender – Free 3D Model STL MakerWorld
Unimat SL Tailstock 20mm Extender
Rasmussen 3
Split-Ring Hypocyclic Compound gearbox – Free 3D Model STL MakerWorld
Split-Ring Hypocyclic Compound gearbox
mellow and beyond 3
SUPER Mighty - Chainguard – Free 3D Model STL MakerWorld
SUPER Mighty - Chainguard
Super Bicycles 9
standard trophy – Free 3D Model STL MakerWorld
standard trophy
brianbang435 6
ew2qewqe – Free 3D Model STL MakerWorld
ew2qewqe
Jack3d
E-bike screw in cord organiser – Free 3D Model STL MakerWorld
E-bike screw in cord organiser
Boosty boy
Screen Protector EB02 / EDK01 – Free 3D Model STL MakerWorld
Screen Protector EB02 / EDK01
miklos 1
Bowstring plug-Bowstring stopper bead V1 – Free 3D Model STL MakerWorld
Bowstring plug-Bowstring stopper bead V1
zunger 1
PACKAGE HOLDER CARBON COVERS – Free 3D Model STL MakerWorld
PACKAGE HOLDER CARBON COVERS
Oktaycan9
Skele8 Supra RC Car Transmission shifter plate mod – Free 3D Model STL MakerWorld
Skele8 Supra RC Car Transmission shifter plate mod
Jeasy 8
Enclosure for PWM + USB-C – Free 3D Model STL MakerWorld
Enclosure for PWM + USB-C
ABE 7
.300 Weatherby Magnum – Free 3D Model STL MakerWorld
.300 Weatherby Magnum
Biskup 2
Card Kit Card – Free 3D Model STL MakerWorld
Card Kit Card
PrintChimp 3D 6
Rotary Wheel For 28BYJ-48 stepper motor – Free 3D Model STL MakerWorld
Rotary Wheel For 28BYJ-48 stepper motor
Zed
SLK 230 or 320 Defrost (R170) – Free 3D Model STL MakerWorld
SLK 230 or 320 Defrost (R170)
Will Naas
Clone Blaster - Minifig scale & 10:1 scale – Free 3D Model STL MakerWorld
Clone Blaster - Minifig scale & 10:1 scale
Snakeland 10
room diffuser/HOME+reed diffuser holder – Free 3D Model STL MakerWorld
room diffuser/HOME+reed diffuser holder
JPM-3D 2
1 – 48 of 8,761 Models
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