K9 Mark I 3D Printing Figurine | Assembly

cm: 5.6 w x 15.8 d x 11.3 h
in: 2.205 w x 6.22 d x 4.449 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.

K9 Mark I 3D Printing Model comes in 3 versions for each 3D printer type (FFF/FDM, DLP/SLA and SLS). Files for each 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_head_FDM (repaired).stl
2.04 MiB 2 h 28 min 1 m 23 x 54 x 33 Download
2_nose_FDM (repaired).stl
0.30 MiB 6 min <1 m 4 x 4 x 15 Download
3_radar_FDM (repaired).st l
0.06 MiB 2 min <1 m 5 x 5 x 3 Download
4_ear_R_FDM (repaired).st l
2.54 MiB 12 min <1 m 9 x 6 x 15 Download
5_ear_L_FDM (repaired).st l
2.55 MiB 11 min <1 m 9 x 6 x 15 Download
6_neck_FDM (repaired).stl
0.67 MiB 1 h 8 min 1 m 19 x 29 x 35 Download
7_collar_FDM (repaired).s tl
1.07 MiB 11 min <1 m 22 x 29 x 5 Download
8_body_R_FDM (repaired).s tl
45.53 MiB 8 h 50 min 5 m 92 x 65 x 28 Download
9_body_L_FDM (repaired).s tl
2.68 MiB 8 h 25 min 5 m 92 x 65 x 28 Download
10_grip_1_FDM (repaired). stl
0.00 MiB 3 min <1 m 16 x 8 x 2 Download
11_grip_2_FDM (repaired). stl
0.00 MiB 3 min <1 m 16 x 8 x 2 Download
12_grip_3_FDM (repaired). stl
0.00 MiB 3 min <1 m 16 x 8 x 2 Download
13_cap_top_FDM (repaired) .stl
0.27 MiB 16 min <1 m 18 x 17 x 7 Download
14_cap_side_FDM (repaired ).stl
1.48 MiB 11 min <1 m 16 x 16 x 6 Download
15_tail_FDM (repaired).st l
1.10 MiB 28 min <1 m 7 x 7 x 52 Download
16_door_FDM (repaired).st l
1.82 MiB 47 min 1 m 9 x 66 x 39 Download
17_wheel_1_FDM (repaired) .stl
0.04 MiB 11 min <1 m 12 x 12 x 12 Download
18_wheel_2_FDM (repaired) .stl
0.04 MiB 11 min <1 m 12 x 12 x 12 Download
19_wheel_3_FDM (repaired) .stl
0.04 MiB 11 min <1 m 12 x 12 x 12 Download
20_wheel_4_FDM (repaired) .stl
0.04 MiB 11 min <1 m 12 x 12 x 12 Download
21_roll_1_FDM (repaired). stl
0.04 MiB 11 min <1 m 45 x 5 x 5 Download
22_roll_2_FDM (repaired). stl
0.04 MiB 11 min <1 m 45 x 5 x 5 Download
23_Ge_lock_10H_x9_FDM (re paired).stl
0.03 MiB 4 min <1 m 18 x 10 x 2 Download
Keychain (repaired).stl
0.35 MiB 23 min <1 m 30 x 30 x 2 Download
Tag (repaired).stl
1.70 MiB 1 h 16 min 1 m 150 x 18 x 5 Download


K9 Mark I is a robot dog that was first introduced in 1977 in the story 'The Invisible Enemy' of the legendary British Sci-Fi TV series Doctor Who. While working on the asteroid, Professor Frederick Marius invented the first K9 and equipped the robot with such state-of-the-art technologies as intraresponsive brain app, a vision and voice box and scanning antennas to keep him company far from home. Later on, Professor Marius offered the fourth Doctor and Leela the K9 to accompany the pair in their travel and thus the robot dog was taken aboard the TARDIS. K9 was basically intended as a one-off character but immediately won such immense popularity with the Time Lord adventure’s fans that was made a regular Doctor’s companion. The author of the K9 Mark I for 3D printing also couldn’t resist the robot’s charms given its encyclopaedic knowledge and vast computer intelligence and spent 30 hours in total to design the action model of the well-liked K9 mechanic dog. A lot of K9 design's assembly parts are articulated which doubles the assembly and displaying fun for all the Doctor Who enthusiasts.


K9 Mark I model for 3D printing is an articulated assembly model and its moderation and adaptation for different types of 3D printers took Gambody team 3 hours in total. The model’s chosen cutting was aimed at minimisation of the amount of filament needed for generated support. All the assembly parts are provided in STL files in recommended positions that were worked out so to ensure the smoothness of the details’ surfaces after printing and that the 3D printing beginners won't face difficulties when placing the parts on a build plate. For you to receive the cleanest printing result possible all the fine details the model is comprised of, namely the robot’s nose, radar, ears, collar, grips and tail are provided as separate STL files. The robot dog’s movable head, opening side access panel and rotating tail allow you to display the Doctor’s companion in different kind of scenarios. Four wheels can be easily assembled with the pair of bars that ensure the K9’s smooth movement.

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 the K9's actual height that is 900 mm. The 3D printing model's chosen scale is 1/8 for the FFF/FDM version and 1/16 for the DLP/SLA/SLS versions.


FFF/FDM version features:
- Contains 23 parts;
- A printed model is 113 mm tall, 56 mm wide, 158 mm deep;
- Assembly kit includes locks to connect the parts without glue. One lock 23_Ge_lock_10H_x9 needs to be printed 9 times;
- Made with four rotating wheels that ensure the K9's movement;
- The K9's head is movable;
- The side access panel can be opened or removed to reveal the parts of the robot's internal mechanisms; 
- All parts are divided in such a way that you will print them with the smallest number of support structures.

DLP/SLA version features:
- Contains 6 parts;
- A printed model is 57 mm tall, 28 mm wide, 79 mm deep;
- The side access panel can be opened or removed to reveal the parts of the robot's internal mechanisms;
- The K9's head is movable;
- All parts are divided in such a way to fit the build plates and to ensure that support structures are generated where needed.

SLS version features:
- Made as a solid one-piece model; 
- A printed model is 57 mm tall, 28 mm wide, 79 mm deep;
- Contains 3 parts - a one-piece model with a) the side access panel closed, b) opened, c) removed.


- STL files of K9 Mark I Model for 3D printing which consist of 32 parts;
- 3 versions of files for this model for FFF/FDM, DLP/SLA and SLS printers;
- High-poly detailed model of K9 Mark I;
- 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 K9 Mark I 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 K9 Mark I 3D Printing Model at Gambody YouTube channel.

Also, you may like other Fiction 3D Printing Figurines.


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: For all parts of Locks you need to change "Brim" type to "Skirt" in Build Plate Adhesion section.

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: 20%
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 mm3
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%

Disclaimer: This model will look outstanding if printed on SLA/SLS 3D printer. The accuracy of the model printed on FFF printer can vary from the result shown in the pictures.

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: 10%
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 desity: 20%
  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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