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Full RC Hawker Hurricane - 3D printed project

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Creation quality: 5.0/5 (4 votes)
Evaluation of members on the printability, utility, level of detail, etc.

3D model description

Easy to put together & well documented.
Own this and print it as many times as you want for only $99.00

A reference assembly & flight video has been posted at the following link:
https://www.youtube.com/watch?v=X6wb0cdJtoM

I have other RC planes and plane related parts:
https://cults3d.com/en/users/taciucmarius/creations
^^^ Check them here for more fun ! ^^^

General info

  • Wingspan: ~820mm
  • Length: ~600mm cowl edge to rudder edge (these dimensions depend on how you glue the plane together, calibration of your printer and your choice in the printed pieces)
  • Overall weight: ~1200g (balanced and ready to fly with 4700mA 4S battery, heat shrink film on it and everything else)
  • Servo choice: 9g (SG90) X5.
  • Battery choice: min4S (mandatory at this weight/ portance ratio). I would keep it smaller than 4000mA to save on weight, although I tested mine with a 4700 one.
  • Propeller: 8x4’’ ÷ 8x6’’ (depending on your altitude) I tested mine at 1600m above the sea level with 8x5’’.
  • Brushless motor: ~300W/1000KV with 40A ESC or anything else that would result in ~1Kg of thrust with your propeller choice.
  • Tip and propeller attachment: The standard bullet propeller adapter would look more towards the original shape of the plane. I tested it with Prop savers as you can see in the pictures and video. The choice is yours.
  • Wing incidence angle: 1.5 degree (adjustable)
  • Nose additional weight: I had to add 142g on mine, but this can depend on how you position the battery inside the plane.
  • GC ~65mm as you measure from the front edge of the middle wing section towards the tail of the plane. Or suspend the plane by the tips of the wings. See picture.
  • Material: I used PLA, but ideally LW-PLA would be the best choice. Feel free to use whatever and post pictures.

About flying it

At his wheel size and weight it will probably not take off on grass, as you can see in the video. You will need to take off on smooth asphalt or concrete. The asphalt I have access to here (video) is very stony and rough. So maybe a countryside good road, an empty parking lot, a field alley, etc, would do. Depending on several factors like elevation, final weight of your build, battery voltage, propeller pitch and motor, you might find that you need a longer runaway than expected. Mine in the video was about 15m and I felt like it was short like crazy.
Always remember that this plane was meant to be a speed fighter in real life. So it’s small wing surface and incidence angle must be compensated with speed in order to keep it in the air.

Disclaimer

This is definitely not a model to try if you are a beginner.
It is recommended to at least medium level 3D printing enthusiasts and long term passionate RC pilots that are not at their first plane build.
Being a low winger and a speed plane it might require very quick reflexes in tight spaces and a lot of experience in this domain. Depending on the configuration, I expect that it can reach speeds of more than 40km/h. It’s over 1Kg of bullet. So this is no toy. Hitting somebody with this plane can cause severe injuries or even death. The creator of this thing (AKA ME) does not assume responsibility for any inconvenience, incident, property damage or casualty generated by improper use of this thing.

How to build it

Watch the video first as I show how I welded the parts together. Yes you can heat and shrink the film on the plane without melting or deforming the PLA printed parts. No special coating required on the plastic parts. I got used to using my regular cloth iron set between ** and *** to glue and shrink the film. Some parts were left unperforated just as solid blocks. They can be printed better as hollow shells with 0% infill and they require trimming of some faces. I will add both the perforated and unperforated stls and you can decide which one to print depending on how much post printing processing you want to do. Check the printing instructions for more details.

Also, visit the hackaday's page for more instruction on how to assemble the gear:
https://hackaday.io/project/167876-full-rc-hawker-hurricane

I hope you will be able to build it and if you do, post pictures and videos. If you don't understand something or you need more details about something, don't hesitate to contact me.
A personal contact email address can be found under the About section in my youtube's channel page.


3D printing settings

General printing instructions and guidelines

These are some guidelines derived from my printing experience and they could require readjusting according to your machine type and 3D printing techniques you use. I know people started experimenting with tilted prints to increase the strength and surface quality but I won’t be mentioning these things here. The instructions I’m giving here are more like what I used to achieve the product. So feel free to adopt and adapt.

For all the parts I used Cura Creawsome Mod. It seems to be fusing the filaments better and it has ironing functions on almost every layer. This results in compact prints. I tried other slicers and I even increased the extrusion factor, but only Cura gave me the necessary strength at the painful cost of increasing the printing time twice. I sliced the wheel lids with Slic3r and they ended up delaminating and breaking because of vibrations during a takeoff, as you see in the video.

Print all the parts at 0.1 to 0.2mm resolution. I printed all of them at 0.2mm layer height.
It’s recommended to increase the printing temperature with up to 5% of your regular one for that specific type of filament you use. This could create oozing but the structures would end up more compact.

Fuselage A section:
The solid block one
4 shells,
6 top and bottom layers
Trim the window section and the flat base with the soldering iron after printing.
The perforated one
Trim the window inner walls and make a hole into the flat base after printing to make it more lightweight.

Fuselage B,C,D sections
Use support materials and print as they are. Aligning the fibres horizontally will give the parts the needed torsion strength. I used the line support pattern from Cura which comes off easily.
I had almost no infill. I matched up the number of the shells with the number of top/bottom layers so I would get a pretty much solid print. Next time I would try to use only 3 shells and up to 4 top/bottom layers to make them lighter and use less material on them.

Fuselage E,F sections
Reorientate the F piece nose down. I think I uploaded it nose up. So flat base down because this flat base will be the motor attachment plate and it needs to be compact.
Be careful. Use at least 20 bottom layers for this F section so the motor will not be attached on a thin paper like shell.
Print the E section as it is and don’t rotate. I printed both of these sections with no supports.

Cowl
The long one looks better on the plane and fits nicer with the F section of the fuselage. I uploaded the short one too so you could install the one that fits better according to the size of your motor. Both of them prints with no supports, nose down. I think I uploaded the short one nose up so you will need to rotate it. If you decide to go with the short cowl, you would probably need to make the flat motor mounting plate of the F section less sharp around the edges. I had to fillet these edges with about 5mm to make the short cowl fit properly.

Exhaust arrays
2 to 3 shells
10% infill
Attach permanently to the cowl using glue or spot welded with the soldering iron. I heated them up a little bit with the heatgun before gluing to the plane just to give them a curled shape that would follow the line of the fuselage better.
I used 4 screws (2.5X8) to attach the cowl to the fuselage as you can see in the pictures.

Wings and middle section
I generated the line support using Cura and I aligned the lines with the wing ribs.
Check the last picture in the list for example

Cockpit
Print using line support material.
2 shells, 4 top layers
0% infill
trim the flat base after printing

3D printer file information

  • 3D design format: STL Folder details Close
    • 00_Hawker_Hurricane_single_block.stl
    • Full_RC_Hawker_Hurricane_Aileron_L.stl
    • Full_RC_Hawker_Hurricane_Aileron_R.stl
    • Full_RC_Hawker_Hurricane_Flaps_L_light.stl
    • Full_RC_Hawker_Hurricane_Flaps_R_light.stl
    • Full_RC_Hawker_Hurricane_Mid_L.stl
    • Full_RC_Hawker_Hurricane_Mid_R.stl
    • Full_RC_Hawker_Hurricane_Radiator.stl
    • Full_RC_Hawker_Hurricane_Wing_L_A.stl
    • Full_RC_Hawker_Hurricane_Wing_L_B.stl
    • Full_RC_Hawker_Hurricane_Wing_L_C.stl
    • Full_RC_Hawker_Hurricane_Wing_R_A.stl
    • Full_RC_Hawker_Hurricane_Wing_R_B.stl
    • Full_RC_Hawker_Hurricane_Wing_R_C.stl
    • Full_RC_Hawker_Hurricane_cockpit_1.stl
    • Full_RC_Hawker_Hurricane_cockpit_2.stl
    • Full_RC_Hawker_Hurricane_cowl_0_8mm.stl
    • Full_RC_Hawker_Hurricane_exhaust.stl
    • Full_RC_Hawker_Hurricane_flaps_L.stl
    • Full_RC_Hawker_Hurricane_flaps_R.stl
    • Full_RC_Hawker_Hurricane_fuselage_A.stl
    • Full_RC_Hawker_Hurricane_fuselage_B.stl
    • Full_RC_Hawker_Hurricane_fuselage_C.stl
    • Full_RC_Hawker_Hurricane_fuselage_D.stl
    • Full_RC_Hawker_Hurricane_fuselage_E.stl
    • Full_RC_Hawker_Hurricane_fuselage_F.stl
    • Full_RC_Hawker_Hurricane_intake.stl
    • Full_RC_Hawker_Hurricane_long_cowl_0_8mm.stl
    • Full_RC_Hawker_Hurricane_rear_wheel.stl
    • Full_RC_Hawker_Hurricane_rudder.stl
    • Full_RC_Hawker_Hurricane_rudder_light.stl
    • Full_RC_Hawker_Hurricane_tail.stl
    • Full_RC_Hawker_Hurricane_tailwing_L.stl
    • Full_RC_Hawker_Hurricane_tailwing_R.stl
    • Full_RC_Hawker_Hurricane_wheel.stl
    • Full_RC_Hawker_Hurricane_wheel_support_L.stl
    • Full_RC_Hawker_Hurricane_wheel_support_R.stl

    Learn more about the formats

  • Last update: 2021-12-09 at 14:14
  • Publication date: 2019-09-30 at 11:19
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    Published to Thingiverse on: 2019-09-28 at 14:17

Copyright

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Creator

I'm a former Romanian HW engineer and I recently moved to Papua New Guinea for a few years.
I used to be involved into hardware designing electronic modules for the automotive industry. Now I am working as a maintenance engineer for an aid organization and help with the development of the III-rd world countries.

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