Optimus Prime 3D Printing Model | Assembly + Action

cm: 11.6 w x 9.3 d x 23 h
in: 4.567 w x 3.661 d x 9.055 h

Source Files




Printing Details

This 3D Model consists of files in StereoLithography (.Stl) format that is optimized for 3D printing.

Before printing the files, we strongly recommend reading the PRINTING DETAILS section.

Optimus Prime 3D Printing Model comes in 1 version for FFF/FDM 3D printers. STL files of the version are available for download after the purchase.

Detailed information about this 3D printing model is available in the DESCRIPTION section.

File Name File Size Time / Filament Object Size
(x/y/z mm)
1_arm_1_R (repaired).stl
0.43 MiB 14 min <1 m 19 x 11 x 10 Download
2_arm_2_R (repaired).stl
0.04 MiB 9 min <1 m 18 x 10 x 7 Download
3_arm_3_R (repaired).stl
0.78 MiB 1 h 57 min 1 m 55 x 18 x 22 Download
4_arm_fender_R (repaired) .stl
0.67 MiB 55 min 1 m 38 x 22 x 13 Download
5_arm_hand_1_R (repaired) .stl
1.07 MiB 20 min <1 m 13 x 14 x 11 Download
6_arm_hand_2_R (repaired) .stl
0.74 MiB 20 min <1 m 21 x 14 x 12 Download
7_arm_hand_3_R (repaired) .stl
0.86 MiB 10 min <1 m 10 x 14 x 9 Download
8_arm_joint_shoulder_1_R (repaired).stl
0.77 MiB 20 min <1 m 13 x 15 x 13 Download
9_arm_joint_shoulder_2_R (repaired).stl
0.52 MiB 17 min <1 m 19 x 17 x 10 Download
10_arm_shoulder_R (repair ed).stl
0.96 MiB 1 h 14 min 1 m 21 x 32 x 22 Download
11_arm_shoulder_tube_R ( repaired).stl
0.80 MiB 26 min <1 m 6 x 7 x 22 Download
12_arm_silencer_tube_R (r epaired).stl
0.09 MiB 5 min <1 m 4 x 33 x 4 Download
13_arm_1_L (repaired).stl
0.43 MiB 14 min <1 m 11 x 19 x 10 Download
14_arm_2_L (repaired).stl
0.04 MiB 9 min <1 m 18 x 10 x 7 Download
15_arm_3_L (repaired).stl
0.78 MiB 1 h 55 min 1 m 55 x 18 x 22 Download
16_arm_fender_L (repaired ).stl
0.67 MiB 55 min 1 m 38 x 22 x 13 Download
17_arm_hand_1_L (repaired ).stl
1.06 MiB 20 min <1 m 13 x 14 x 11 Download
18_arm_hand_2_L (repaired ).stl
0.74 MiB 20 min <1 m 21 x 14 x 12 Download
19_arm_hand_3_L (repaired ).stl
0.86 MiB 10 min <1 m 10 x 14 x 9 Download
20_arm_joint_shoulder_1 ( repaired).stl
0.77 MiB 20 min <1 m 13 x 15 x 13 Download
21_arm_joint_shoulder_2 ( repaired).stl
0.52 MiB 17 min <1 m 19 x 17 x 10 Download
22_arm_shoulder tube (re paired).stl
0.80 MiB 26 min <1 m 6 x 7 x 22 Download
23_arm_shoulder_L (repair ed).stl
0.96 MiB 1 h 21 min 1 m 32 x 22 x 21 Download
24_arm_silencer_tube (rep aired).stl
0.09 MiB 5 min <1 m 4 x 33 x 4 Download
25_head_face (repaired).s tl
0.02 MiB 7 min <1 m 12 x 10 x 7 Download
26_head (repaired).stl
0.52 MiB 45 min <1 m 19 x 21 x 22 Download
27_head door (repaired).s tl
0.91 MiB 30 min <1 m 20 x 7 x 22 Download
28_head joint (repaired). stl
0.21 MiB 5 min <1 m Download
29_rifle (repaired).stl
1.29 MiB 2 h 18 min 1 m Download
30_rifle joint (repaired) .stl
0.05 MiB 12 min <1 m 29 x 9 x 5 Download
31_body_door (repaired).s tl
0.11 MiB 24 min <1 m 22 x 16 x 20 Download
32_body_front_grid (repai red).stl
0.31 MiB 19 min <1 m 22 x 26 x 2 Download
33_body_glass_front_x2 (r epaired).stl
0.06 MiB 8 min <1 m 23 x 11 x 3 Download
35_body_pelvis (repaired) .stl
1.47 MiB 2 h 19 min 1 m Download
36_body_pelvis_2 (repaire d).stl
1.10 MiB 1 h 30 min 1 m Download
37_body_side_glass_x2 (re paired).stl
0.00 MiB 3 min <1 m 6 x 10 x 3 Download
38_body_side_1_L (repaire d).stl
0.06 MiB 19 min <1 m Download
39_body_side_R_L (repaire d).stl
0.06 MiB n.a.
12 x 15 x 13 Download
40_body_side_2_L (repaire d).stl
0.02 MiB 23 min <1 m Download
41_body_side_2_R (repaire d).stl
0.02 MiB 24 min <1 m Download
42_body (repaired).stl
3.23 MiB 10 h 27 min 7 m Download
43_leg_1_R (repaired).stl
1.33 MiB 5 h 3 min 3 m 70 x 31 x 38 Download
44_leg_2_R (repaired).stl
1.35 MiB 1 h 22 min 1 m 40 x 21 x 19 Download
45_leg_3_R (repaired).stl
1.91 MiB 45 min <1 m Download
46_leg_foot_1_R (repaired ).stl
0.03 MiB 37 min <1 m 25 x 18 x 12 Download
47_leg_foot_2_R (repaired ).stl
0.61 MiB 49 min <1 m Download
48_leg_grid_R (repaired). stl
0.07 MiB 16 min <1 m 33 x 14 x 3 Download
49_leg_knee_R (repaired). stl
0.04 MiB 19 min <1 m Download
50_leg_tank_R (repaired). stl
0.13 MiB 16 min <1 m Download
51_leg_1_L (repaired).stl
1.37 MiB 5 h 39 min 4 m Download
52_leg_2_L (repaired).stl
1.35 MiB 1 h 24 min 1 m 40 x 19 x 21 Download
53_leg_3_L (repaired).stl
1.90 MiB 44 min <1 m 26 x 17 x 21 Download
54_leg_foot_1_L (repaired ).stl
0.03 MiB 37 min <1 m Download
55_leg_foot_2_L (repaired ).stl
0.61 MiB 49 min <1 m Download
56_leg_grid_L (repaired). stl
0.07 MiB 16 min <1 m 33 x 14 x 3 Download
57_leg_knee_L (repaired). stl
0.04 MiB n.a.
24 x 18 x 6 Download
58_leg_tank_L (repaired). stl
0.13 MiB 16 min <1 m Download
59_wheel_tire_front_x2 (r epaired).stl
0.46 MiB 24 min <1 m Download
60_wheel_tire_rear_ext_x4 (repaired).stl
0.49 MiB n.a.
25 x 25 x 6 Download
61_wheel_tire_rear_int_x4 (repaired).stl
0.48 MiB 15 min <1 m Download
62_wheel_front_x2 (repair ed).stl
0.64 MiB 15 min <1 m Download
63_wheel_rear_x4 (repaire d).stl
0.77 MiB 20 min <1 m Download
Keychain (repaired).stl
0.35 MiB n.a.
30 x 30 x 2 Download
Tag (repaired).stl
1.70 MiB 1 h 16 min 1 m Download
34_body_joint_pelvis_v2 ( repaired).stl
0.62 MiB 8 min <1 m 10 x 18 x 8 Download


There’s hardly anyone across numerous galaxies and alternate universes who hasn’t heard the name of legendary Optimus Prime. Being a powerful member of the Cybertronians, the perfect amalgamation of biological evolution and technological engineering, Optimus Prime bears the responsibility endowed by the Matrix of Leadership. The leader of the Autobot forces possesses not only a sophisticated set of weaponry and brilliant martial skills but remarkable wisdom, empathy and sense of honour which cultivates hope even in scattered warriors. With all of these qualities combined, Optimus Prime was able to win a spot in people’s hearts as a heroic and selfless figure, thus spurring our contributing 3D artist to embody the charismatic leader in a model for 3D printing. The author of the Optimus Prime 3D Printing Model found inspiration in the 1984 incarnation of the Autobot and decided to reinterpret it in his own unique way. The 3D printing transformer appears in two of his iconic forms - robot mode and truck mode. When disguising as an Earth vehicle, Optimus takes the form reminiscent of the Freightliner FL86 cab over semi-truck. Just as the authentic machine, the truck is equipped with the recognisable large radiator grille, exhaust stacks, marker lights, a pair of fuel tanks and a set of potent wheels. But whenever the Autobot hero for 3D printing is ready to reveal his otherworldly power, he turns himself into a humanoid robot that can easily defeat a whole swarm of devious enemies. Yet, no matter which guise he takes, the Optimus Prime 3D Printing model will bravely stand on guard of your collection once you 3D print him! 


Optimus Prime model for 3D printing is a fully articulated assembly model and its moderation and adaptation for different types of 3D printers took Gambody team 40 hours in total. In order to ensure the Autobot’s full transformation into a cab over semi-truck, the joints of the Optimus Prime 3D Printing Model were equipped with a system of articulated interlocking mechanisms. For you to have an opportunity to display your Optimus Prime in various positions, robot’s head, shoulders, wrists, hips, feet and many other assembly parts were made articulated. The model can be assembled without glue or screws but you will need additional “pins” to secure the parts. These pins do not come in STL files but can be made out of short pieces of regular 1.75 PLA. All the assembly parts are provided in STL files in recommended positions that were worked out to ensure the smoothness of the details’ surfaces after printing and to make sure that the 3D printing beginners won't face difficulties when placing the parts on a build plate. When downloading any model's file you will also receive "Assembly Manual" for FFF/FDM 1.0 version in PDF format. Make sure to watch "Assembly video" in the photo preview section and read the "Assembly Manual" before getting down to the Optimus Prime model.

The model is saved in STL files, a format supported by most 3D printers. All STL files for 3D printing have been checked in Netfabb and no errors were shown.

The model's scale was calculated from Optimus Prime's actual height in robot mode that is 6000 mm. The 3D printing model's chosen scale is 1:28 for the FFF/FDM version.


FFF/FDM 1.0 version features: 
- Contains 63 parts;
- In Truck mode a printed model stands 90 mm tall, 73 mm wide, 159 mm deep;
- In Autobot mode - 230 mm tall, 116 mm wide, 93 mm deep;
- Each robot’s joint is articulated and all assembly parts are interlocking which allows the model's full transformation;
- Can transform between Autobot and Truck modes without disassembling or replacing parts;
- The model can be assembled with 1.75 PLA pins only;
- Watch "Assembly video" to see the pins coloured red; 
- With any file of the model, you will also receive the instructions on the assembly peculiarities in a PDF file "Assembly Manual";
- All parts are divided in such a way that you will print them with the smallest number of support structures.


- STL files of Optimus Prime Model for 3D printing which consist of 63 parts;
1 version of files for this model for FFF/FDM;
- High-poly detailed model of Optimus Prime​;
Assembly Manual for FFF/FDM 1.0 version in PDF format;
- Detailed settings that we provide as a recommendation for Cura , Simplify3D and Slic3r for the best print;
- Full technical support from the Gambody Support Team.

You can get the model of Optimus Prime for 3D Printing immediately after the purchase! Just click the green Buy button in the top-right corner of the model’s page. You can pay with PayPal or your credit card.

Watch the tutorial on how to assemble Optimus Prime​ 3D Printing Model at Gambody YouTube channel.

Also, you may like Optimus Prime G1 3D Printing Model, as well as other Robot 3D Printing Models.


Where can I print a model if I have no printer?
How to get started with 3D printing?
How to set up my 3D printer?
How to choose right 3D model print bed positioning? 
How to paint printed figurine?

This model was tested in Cura 3.4.1 and printed on an Ultimaker 2 in PLA material. Below you can find printing recommendations for CuraSimplify3D and Slic3r softwares.

Cura printing recommendations:

Recommendations: Use ABS or PLA Plus filament to print more durable and friction resistant details.

To avoid printing problems, we recommend the following settings:

Layer Height: 0.1 mm
Initial Layer Height: 0.3 mm
Line Width: 0.4 mm
 Wall Line Width: 0.4 mm
   Outer Wall Line Width: 0.4 mm
   Inner Wall(s) Line Width: 0.4 mm
 Top/Bottom Line Width: 0.4 mm
 Infill Line Width: 0.4 mm
 Skirt/Brim Line Width: 0.4 mm
Support Line Width: 0.4 mm
 Initial Layer Line Width: 100%

Wall Thickness: 0.8 mm
    Wall Line Count: 2
Outer Wall Wipe Distance: 0.2 mm
Top Surface Skin Layers: 0
Top/Bottom Thickness: 0.8 mm
   Top Thickness: 0.8 mm
      Top Layers: 8
    Bottom Thickness: 0.8 mm
      Bottom Layers: 8
Top/Bottom Pattern: Lines
Bottom Pattern Initial Layer: Lines
Top/Bottom Line Directions: [ ]
Outer Wall Inset: 0 mm
Compensate Wall Overlaps: Check
    Compensate Outer Wall Overlaps: Check
    Compensate Inner Wall Overlaps: Check
Fill Gaps Between Walls: Everywhere
Filter Out Tiny Gaps: Check
Horizontal Expansion: 0 mm
Initial Layer Horizontal Expansion: 0 mm
Z Seam Alignment: Sharpest Corner
Seam Corner Preference: Hide Seam
Ignore Small Z Gaps: Check
Extra Skin Wall Count: 1

Infill Density: 80%
Infill Line Distance: 4.0 mm
Infill Pattern: Grid
Infill Line Directions: [ ]
Infill X Offset: 0 mm
Infill Y Offset: 0 mm
Infill Overlap Percentage: 10%
    Infill Overlap: 0.04 mm
Skin Overlap Percentage: 5%
    Skin Overlap: 0.02 mm
Infill Wipe Distance: 0.1 mm
Infill Layer Thickness: 0.1 mm
Gradual Infill Steps: 1
Gradual Infill Steps Height: 1.5 mm
Infill Before Walls: Check
Minimum Infill Area: 0 mm2
Skin Removal Width: 0.8 mm
    Top Skin Removal Width: 0.8 mm
    Bottom Skin Removal Width: 0.8 mm
Skin Expand Distance: 0.8
    Top Skin Expand Distance: 0.8
    Bottom Skin Expand Distance: 0.8
Maximum Skin Angle for Expansion: 90˚
    Minimum Skin Width for Expansion: 0.0

Initial Layer Flow: 100%
Enable Retraction: Check
Retraction Extra Prime Amount: 0
Retraction Minimum Travel: 0.8 mm
Maximum Retraction Count: 90
Minimum Extrusion Distance Window: 6.5 mm
Nozzle Switch Retraction Distance: 16 mm
Nozzle Switch Retraction Speed: 20 mm/s
    Nozzle Switch Retract Speed: 20 mm/s
    Nozzle Switch Prime Speed: 20 mm/s

Print Speed: 45 mm/s
    Infill Speed: 45 mm/s
    Wall Speed: 22.5 mm/s
      Outer Wall Speed: 22.5 mm/s
      Inner Wall Speed: 45 mm/s
    Top/Bottom Speed: 15 mm/s
Travel Speed: 45 mm/s
Initial Layer Speed: 22.5 mm/s
  Initial Layer Print Speed: 22.5 mm/s
  Initial Layer Travel Speed: 30 mm/s
Skirt/Brim Speed: 30 mm/s
Maximum Z Speed: 0 mm/s
Number of Slower Layers: 2

Combing Mode: All
Avoid Printed Parts when Traveling: Check
Travel Avoid Distance: 0.625 mm
Layer Start X: 0.0 mm
Layer Start Y: 0.0 mm

Enable Print Cooling: Check
Fan Speed: 100%
    Regular Fan Speed: 100%
    Maximum Fan Speed: 100%
Regular/Maximum Fan Speed Threshold: 10 s
Initial Fan Speed: 0%
Regular Fan Speed at Height: 0.3 mm
    Regular Fan Speed at Layer: 2
Minimum Layer Time: 5 s
Minimum Speed: 10 mm/s

Generate Support: Check
Support Placement: Everywhere
Support Overhang Angle: 50°
Support Pattern: Zig Zag
Connect Support ZigZags: Check
Support Density: 15 %
    Support Line Distance: 3 mm
Support Z Distance: 0.1 mm
    Support Top Distance: 0.1 mm
    Support Bottom Distance: 0.1 mm
Support X/Y Distance: 1 mm
Support Distance Priority: Z overrides X/Y
Minimum Support X/Y Distance: 0.25 mm
Support Stair Step Height: 0.3 mm
Support Stair Step Maximum Width: 5.0 mm
Support Join Distance: 2.0 mm
Support Horizontal Expansion: 0.2 mm
Support Infill Layer Thickness: 0.1 mm
Gradual Support Infill Steps: 0
Use Towers: Check
Tower Diameter: 3.0 mm
Minimum Diameter: 3.0 mm
Tower Roof Angle: 65°

Build Plate Adhesion 
Build Plate Adhesion Type: Brim (for all parts of locks use "Skirt")
Skirt/Brim Minimum Length: 250 mm
Brim Width: 8.0 mm
    Brim Line Count: 18
Brim Only on Outside: Check

Mesh Fixes 
Union Overlapping Volumes: Check
Merged Meshes Overlap: 0.15 mm

Special Modes
Print Sequence: All at Once
Surface Mode: Normal

Slicing Tolerance: Middle
Maximum Resolution: 0.01 mm
Flow rate compensation max extrusion offset: 0 mm
Flow rate compensation factor: 100%

Simplify3D printing recommendations:

This model was tested with PLA material.

To avoid printing problems, we recommend the following settings:

Nozzle Diameter: 0.4 mm
Extrusion Multiplier: 0.97
Extrusion Width: Auto

Retraction Distance: 5.00 mm
Extra Restart Distance: 0.00 mm
Retraction Vertical Lift: 0.08 mm
Retraction Speed: 5400.0 mm/min

Wipe Distance: 5.00 mm

Primary Layer Height: 0.2 mm
Top Solid Layers: 8
Bottom Solid Layers: 5
Outline/Perimeter Shells: 2
Outline Direction: Inside-Out

First Layer Height: 90%
First Layer Width: 100%
First Layer Speed: 20%

Use Skirt/Brim: Check
Skirt Layers: 1
Skirt Offset from Part: 6.00 mm
Skirt Outlines: 5

Internal Fill Pattern: Fast Honeycomb
External Fill Patern: Rectilinear
Interior Fill Percentage: 80%
Outline Overlap: 22%
Infill Extrusion Width: 100%
Minimum Infill Length: 5.00 mm
Combine Infill Every: 1 layers

External Infill Angle Offsets: 45/-45 deg

Generate Support Material: Check
Support Infill Percentage: 15%
Extra Inflation Distance: 1.00 mm
Support Base Layers: 0
Combine Support Every: 1 layers

Dense Support Layers: 0
Dense Infill Percentage: 70%

Support Type: Normal
Support Pillar Resolution: 5.00 mm
Max Overhang Angle: 60 deg

Horizontal Offset From Part: 0.50 mm
Upper Vertical Separation Layers: 1
Lower Vertical Separation Layers: 1

Support Infill Angles: 45 deg

Extruder 1 Temperature: 210
Heated Bed: 60

Increase fan speed for layers below: 45.0 sec
  Maximum Cooling fan speed: 50%
Bridging fan speed override: 100%

Default Printing Speed: 4800.0 mm/min
Outline Underspeed: 50%
Solid Infill Underspeed: 80%
Support Structure Underspeed: 80%
X/Y Axis Movement Speed: 10800.0 mm/min
Z Axis Movemen Speed: 1002.0 mm/min

Adjust printing speed for layers below: 15.0 sec 
  Allow speed reduction down to: 20%

Unsupported area threshold: 20.0 sq m

Slic3r printing recommendations:

Layer height
  Layer height: 0.1 mm
  First layer height: 90%
Vertical shells
  Perimeters: 2
Horizontal shells
  Soid layers: 
              Top: 8
              Bottom: 5
  Detect thin walls: Check
  Detect bridging perimeters: Check
  Seam position: Random
  Fill density: 80%
  Fill pattern: Honeycomb
  Top/bottom fill pattern: Rectilinear
Reducing printing time
  Combine infill every: 1 layers
  Solid infill every: 0 layers
  Fill angle: 25 deg
  Solid infill threshold area: 0mm
  Loops: 2
  Distance from object: 6 mm
  Skirt height: 1 layers
  Minimum extrusion length: 4 mm
  Brim width: 10 mm
Support material
  Generate support material: Check
  Overhang threshold: 45 deg
  Enforce support for the first: 3 layers
  Raft layers: 0 layers
Options for support material and raft
  Contact Z distance: 0.1 mm
  Pattern: Rectilinear
  Patter spacing: 2 mm
  Pattern angle: 0 deg
  Interface layers: 2 layers
  Interface pattern spacing: 0.2 mm
Speed for print moves
  Perimeters: 60 mm/s
  Small perimeters: 20 mm/s
  External perimeters: 20 mm/s
  Infill: 60 mm/s
  Solid infill: 60 mm/s
  Top solid infill: 30 mm/s
  Support material: 50 mm/s
  Support material interface: 100%
  Bridges: 30 mm/s
  Gap fill: 50 mm/s
Speed for non-print moves
  Travel: 60 mm/s
  First layer speed: 30 mm/s
Acceleration control
  Perimeters: 800 mm/s
  Infill: 1500 mm/s
  Bridge: 1000 mm/s
  First layer: 1000 mm/s
  Default: 1000 mm/s
  Max print speed: 100 mm/s
  Max volumetrix speed: 0 mm/s
Extrusion width
  Default extrusion width: 0.42 mm
  First layer: 0.42 mm
  Perimeters: 0.42 mm
  External perimeters: 0.42 mm
  Infill: 0.42 mm
  Solid infill: 0.42 mm
  Top solid infill: 0.42 mm
  Support material: 0.42 mm
  Infill/Perimeters overlap: 20%
  Bridge flow ratio: 0.95
  XY Size Compensation: 0 mm
  Threds: 8
  Resolution: 0 mm


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