Sentry Turret 3D Printing Model | Assembly

ABOUT THIS 3D MODEL

Sentry Turret, also known as The Aperture Science Sentry Turret is the autonomous gun platform commonly seen as an obstacle to the Test Subject in the Portal video game series. A miniature tripod robot with a single red eye serves as a guard of the maintenance areas and tends to speak politely in a child-like voice. But one should not be fooled into believing that small turret is here to help out! On the contrary, the sentry has dual machine guns which are put into operation immediately as the gun platform tracks a target in its visual sight. Once the target can no longer be located with the turret’s laser targeting beam, the gun platform goes into the standby sleeping mode concealing the deadly weapons under the two plates on either side of the body. The author of the Sentry Turret model for 3D printing depicted the gun platform with each side of its arms open, baring two machine guns ready to fire. The common way to disable the turret is knocking it over by hitting with any other object or picking up and dropping the sentry. While this can be an easy and acceptable method to avoid the obstacle in the portal universe, we are sure that having printed the tripod robot on a 3D printer you will treat it with care and proudly showcase among your figurines collection. 

ADAPTATION FOR 3D PRINTING (FFF/FDM 1.0, DLP/SLA 2.0, SLS 1.0)

Sentry Turret model for 3D printing is a static assembly model and its updating and adaptation for 3D printing took Gambody team 15 hours in total. Due to the fact that this model was first released on Gambody in 2016 as a 9-part version for high-resolution 3D printers, for all the Portal series fans to achieve the cleanest printing result possible, the model was cut into more assembly parts and optimised for different types of 3D printers. With the same purpose, such smaller model’s parts as antennae, eye and both ‘arms’ are now provided as separate assembly pieces. In order to minimise the amount of filament needed for generated support tripod’s legs were also cut into six parts. For the platform to fit even the smallest build plates, it was divided into four pieces with the circle resembling Aperture Laboratories logo design extracted. 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 so that the 3D printing beginners won't face difficulties when placing the parts on a build plate. 

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 Sentry Turret's actual height that is 1300 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.

VERSIONS' SPECIFICATIONS

FFF/FDM 1.0 version features:
- Contains 19 parts;
- A printed model is 190 mm tall, 79 mm wide, 132 mm deep;
- Assembly kit includes locks to connect parts securely without glue. One lock 19_Ge_lock_10H_x16 needs to be printed 16 times;
- Made with a platform resembling the Aperture Laboratories logo design;
- All parts are divided in such a way that you will print them with the smallest number of support structures.

DLP/SLA 1.0 version features:
- Contains 9 parts;
- A printed model is 128 mm tall, 168 mm wide, 168 mm deep;
- Made with a platform resembling the Aperture Laboratories logo design;
- The scale of the model is indeterminate.

DLP/SLA 2.0 version features:
- Contains 9 parts;
- A printed model is 85 mm tall, 40 mm wide, 66 mm deep;
- Made with a platform resembling the Aperture Laboratories logo design;
- Contains some hollowed out parts to save resin.

SLS 1.0 version features:
- Contains 2 parts - a one-piece model with the platform separated.
- Made as a solid one-piece model; 
- A printed model is 85 mm tall, 40 mm wide, 66 mm deep;

WHAT WILL YOU GET AFTER PURCHASE?

- STL files of Sentry Turret​ Model for 3D printing which consist of 39 parts;
- 4 versions of files for this model for FFF/FDM, DLP/SLA and SLS printers;
- High-poly detailed model of Sentry Turret​;
- 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 Sentry Turret​ 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 Sentry Turret​ 3D Printing Model at Gambody YouTube channel.

Also, you may like the other Robots 3D Printing Models.

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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 Cura, Simplify3D 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:

Quality
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%

Shell
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
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

Material
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

Speed 
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

Travel 
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

Cooling 
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

Support 
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

Experimental
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:

Extruder
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

Layer
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%

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

Infill
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

Support
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

Temperature
Extruder 1 Temperature: 210
Heated Bed: 60

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

Speeds
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%

Other
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
Quality
  Detect thin walls: Check
  Detect bridging perimeters: Check
Advanced
  Seam position: Random
Infill
  Fill desity: 20%
  Fill pattern: Honeycomb
  Top/bottom fill pattern: Rectilinear
Reducing printing time
  Combine infill every: 1 layers
Advanced
  Solid infill every: 0 layers
  Fill angle: 25 deg
  Solid infill threshold area: 0mm
Skirt
  Loops: 2
  Distance from object: 6 mm
  Skirt height: 1 layers
  Minimum extrusion length: 4 mm
Brim 
  Brim width: 10 mm
Support material
  Generate support material: Check
  Overhang threshold: 45 deg
  Enforce support for the first: 3 layers
Raft
  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
Modifiers
  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
Autospeed
  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
Overlap
  Infill/Perimeters overlap: 20%
Flow
  Bridge flow ratio: 0.95
Other
  XY Size Compensation: 0 mm
  Threds: 8
  Resolution: 0 mm