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User Guide
Fully 3d printable
Aichi M6A1 Seiran
scale 1:12, wingspan 1070mm (42.1in)
rev. 2016/12
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Aichi M6A1 SEIRAN – fully printable R/C plane for your
desktop 3Dprinter
Future of flying - Print your own plane
We still trying move things further, so this project is again full of other improvements for
better durability , easier assembly , better geometry solution and so on..., we hope you enjoy it, although this print may test your competencies to and quality of your printer
(welcome to the thin wall printing)
The first fully printable airplanes with suitable files prepared for your 3Dprinter.
Flight charecteristics are comparable or even better than classic build model airplane.
Simply download and then print it anytime you need only for $18 (filament cost).
This is not a dream, now you can print this HI-TECH …. at home, print spar parts, and so on...
Extensive hi-tech 3d structural reinforcement which makes the
model very rigid while still maintaining lightweight airframe and exact airfoil even when it
is made only from plastic. This perfect and exact 3d structure is possible only due to aditive
3dprinting technology. So welcome to the 21th century of model flying. Be The first at your
Easy to assembly, you do not need any extra tool or hardware, you only need to
glue printed parts together and make pushrods for control. The rest of the assembly is very
easy.Simply add brushless motor, ESC, servos and radio system. Don´t worry, detailed step
by step PDF/VIDEO is included.
You will get superb performance airplane with High efficient powerplant which let you fly
7+ minutes at full throtle with the speed exceeding 110 kph (HP setup). On the other hand
low stall speed is achived for easy landing.
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General specifications (HP setup):
Lenght: 910 mm (35,8 in)
Wingspan: 1070 mm (42.12 in)
380 mm (14.9 in)
Wing area:
22.8 dm2
Wing loading:
66.6 g/dm2
Center of gravity: 74 mm (28,9 in)
from leading edge
Print weight:
918 g
Empty weight (w/o battery):
1220 g
Takeoff weight (3s 3000 lipo): 1520 g
Max takeoff weight:
1800 g
Never exceed speed, VNE:
170 km/h
Design maneuvering speed, VA: 150 km/h
Stall speed, VS:
34 km/h
Aeronaut ELP 9x6 or APC 9x6 – 9x7
Turnigy D3530/14 1100KV or similar
30A Electronic Speed Controller
or similar 30-40Amps
Li-Pol 3000mAh/3s (11.1V), 238g, 25C
Performance measurement
Max speed VH (level flight):
105 km/h – 56.7kn – 65.2mph with APC 9x6
Rate of climb:
Flight time (3s 3000mAh/full):
20 m/s (5 373 ft/min) with APC 9x6
7:40 with APC 9x6
5:30 with APC 9x7.5
7:40 with aeronaut ELP 9x6
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Aichi M6A1 Seiran, History
To equip the submarine aircraft carriers, the Imperial Japanese Navy Air Service requested
that Aichi design a folding attack aircraft with a range of 1,500 km (810 nmi) and a speed of
555 km/h (300 kn).
The first production examples of the Seiran were completed in October 1944. Construction
of the STo submarines and airplanes was stopped in March 1945, after two submarine aircraft
carriers had been completed and a third finished as a fuel tanker.
The first mission of the Seiran squadron was to be a surprise air strike on the Gatun locks of
the Panama Canal, to cut the main supply line for US forces in the Pacific. When the force was
finally ready to set off on their mission against Panama, Japan’s increasingly desperate situation
led to a change in plan, with the target for the attack, called Operation Hikari (Splendour),
being switched to the American base at Ulithi Atoll where forces, including aircraft carriers,
were massing in preparation for attacks on the Japanese Home Islands.
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1. STL 3d files
Universal STL files designed for use with desktop FMD 3d printers and slicer software as
Simplify3D (recommend) CURA or MatterControl (this STLs are not compatible with Slic3r).
2. Factory files for Simplify3D slicer
with all our setting, this Factory files included all you need, note: we use PRUSA i3 ORIGINAL
printers so you may need adjust the basic printing parameters to match your printer or use it
as a start point for you, please give a look to Simplify3D
3. Step By Step PDF/VIDEO userguides
Apart from this userguide, please give a look to the Printing Guide with some Tips and Advices
for airplane printing (Thin Wall Printing).
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4. Gcodes
Basic Gcodes prepared for direct use, so universal as is possible. Should work with i3 style
printers, you can try it out, but We can not guarantee that it will work with your printer.
100% works with PRUSA i3 ORIGINAL 3d printers.
5. Prepared settings for CURA and MatterControl slicers
If you dont like Simplify3D for any reason, there is always possibility to use another free slicer
you can use our basic setting (setting files) as a start point and edit it as you need.
6. Scale markings PDF
Print this scale PDF at thin self tape advertisement foil and place it on the model as needed,
violet cut lines included.
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22.8 dm2
910 mm (35,8 in)
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1070 mm (42.12 in)
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Step By Step PDF/VIDEO userguide
1. Choose airplane at www.3Dlabprint.com, our Facebook for live information.
Basic requirments for Aichi M6A SEIRAN is 200/200/185mm
bed (or 250/120/185), nozzle 0.4mm recommended (0.35 or
0.5mm alternativelly). Heated bed recommended.
PLA filament (or PETG, APLA, htPLA, PC-max....) not ABS
If you feel a little bit confused you can download wing test
part from our websites or thingiverse, (the biggest part). Or
contact support@3dlabprint.com
2. Create account, download
You will get download link for all files to your email (zipped)or you can log in to your account
and download directly from our websites.
3. Gcodes preparing
options A Gcodes:
if your printer is i3 comptatible you can directly use prepared gcodes, simply save each to
SD card and let 3d printer do his job, HE temperature is set to 230°C for best layer bonding,
you can edit speed and temperature on your printer LCD only. If Gcodes does not work
please proceed to the next options.
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options B Factory files Simplify3D (recommended)
We prepare all you need in this files (basic FFF, parts arranged and so on...)
You can use this our setting as a start point and edit it as you need (adapt it for your printer),
print only parts you need and so on... On most 3d printers it should work as it is, but please
give a look to the setting and edit it if is different to your printer, we are not liable for damages
resulting from the use of our settings. If this does not work please proceed to the next option.
options C Simplify3D manual setting (watch and learn)
Use our video guide 2 for proper setting... this is very good option and you will learn a lot
about Simplify3D and become an 3d expert. Of course you spend a lot of time and youtube
pause button will become your friend.
AND... please give a look to VideoGuides:
video 2 Simplify3D setting
video about Thin Wall Printing
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options D CURA or MatterControl
MatterControl and CURA are free :-) and also gives very good results and airframe is still
strong enough, slicer setting is very easy.
Please try find right extrusion multiplier and temperature for good weight and bets layer
bonding, give a look to parts weight list for proper multiplier setting.
You can also use our predefined CURA or MC slicer setting file included in package (always
adapt it for your printer, change build volume, filament diameter and so on... depends on
your printer!!!):
(wing and fuselage and so on... parts)
CURA_ailer_elev.ini (only ailerons, elevator and rudder parts + fuselage 7)
(motor mount, battery holder, spinner)
(wing and fuselage and so on... parts)
MC_ailer_elev.slice (only ailerons, elevator and rudder parts + fuselage 7)
(motor mount, battery holder, spinner)
AND... please give a look to VideoGuides:
video CURA slicer setting
CURA 2.3.1 import setting
video CMatterControl slicer setting
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4. Print it
Save generated Gcodes and insert SD card to your printer, prepare your printer and start
printing, we prefer to use SD than direct connection via USB Note: ABS filament is not suitable
for this. Scaling the model will lead to unusable result!
Video guide about printing
you will need: PLA filament - good quality and strong PLA (we need good layer bonding)
Strong hair spray (or your favorite adhesive bed surface)
Razor blade
AND... please give a look to VideoGuides:
video printing guide
Main parts weight list:
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Basic Tips and Advices
Please Experiment with your extrusion multiplier.
Also HotEnd temperature is very important for strong result, please try increase temperature
to find the best value (200° up to 260° celsius).
Turn OFF cooling fan for better layer adhesion (HE fan of course ON). We dont need it for our
thin wall printing. We try lot of filaments and so far PLA is still the best for our models (2016).
You can try aslo PETG and PC-max from polymaker is very promising filament.
Heated bed is very recommended, 60-70° Celsius (print without warping ends).
Looks like any standard quality PLA is perfect for our planes, but it always depends on
combination PLA vs. Extruder vs. HotEnd.
We find that some color of filament has lower layer adhesion also.
Nowadays there is lot of 3dprinters on the market, very most of them is OK for printing our
airplanes (specific thin wall printing...) suficient volume, heated bed, 0.4mm nozzle.
Please give a look to Printing Guide:
Look at website or Included PDF file in your downloaded package.
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5. Assembling printed parts
5.1 Wing assembling
Glue wing parts with CAglue together, use activator and install ailerons by hinges.
We recommend CA Hinge sheet. Please, ailerons and elevators may be different from
videoguide, simple glue them together. Be carefull and well-position the parts.
See video guide #4
you will need: CA Glue - medium or similar medium viscosity CA glue
CA Hinge Sheet or similar
Scissors, Snap knife, Some cloth for wiping CA glue...
W aileron right
W right 4
W aileron left
W right 3
W right 2
W left 4
W right 1
W left 1
W left 2
W left 3
5.2.1 Fuselage assembling
Now is good time for glue 4x M3 nuts to fuselage part 7 by small portion of epoxy glue. Clean
the threads and try suitable motor mount. Glue 2x M4 nuts by small portion of epoxy glue
for wing attachment to fuselage part 4. Clean the threads and try suitable M4x40 polyamid
screws. Fine tune parts shape with knife or sandpaper. Glue all fuselage parts with CAglue
together. Carefully observe the position of elevator and glue it to fuselage.
See video guide #5 part1
you will need: CA Glue - medium or similar medium viscosity CA glue
AC Hinge Sheet or similar
4x M3 blind nuts MP-Jet 1035 or Hobbyking M3 nuts or similar
2x M4 blind nuts MP-Jet 1007 AL or Hobbyking M4 nuts or similar
Scissors, Snap knife or Sandpaper, Soldering Iron or any hot tool
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rudder 3
elevator 2
elevator 1
elevator 3
rudder 1, 2
at 2,5mm
carbon wire
110mm long
5.2.2 Floats assembling
Fine tune parts shape with knife or sandpaper. Glue all floats parts with CA glue together.
Glue 2x M4 nuts by small portion of epoxy glue to each float. Clean the threads and try
suitable M4x40 polyamid screws. Apply two-three coats of waterproof varnish at both floats
for a perfect seal.
See video guide #5 part2
float 4
float 3
float 2
float 1
Recommended motor setups
(or use your own with sufficient thrust and weight)
See video guide #6
Eco performance setup
High performance setup
(if you like it hot, yeah)
Turnigy D3530/14 1100KV or similar
30A Electronic Speed Controller or similar
Turnigy 3000mAh 3S 20C or similar
propeller two blade 9x6
printed motor mount (size 1, 2, 3 or 4)
Motor – AX-4008Q-620KV
Speed controller (ESC) YEP 40A/6S or similar
Battery 1550mAh/6s – or 2x 1550/3s better
(use 2to1 serial connector)
propellers two blade 9x7
printed motor mount (size 3)
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7. R/C Equipment and servo pushrods installation
(elevator + rudder installation)
Install prepared RC equipment: Motor, ESC, Servos...
Nose and motor mount are already in angle for compensating rotating propeller stream.
Mount it by mark UP. Test and center all servos with servo tester or transmitter, then install
horns in midle position. Use Hitec HS-82MG or any servos with size in millimeters: 30x12x30
in inches: 1.17 x 0.47 x 1.16.
See video guide #8
you will need: 4x Hitec HS-82MG or similar
2x Servo Lead Extension or similar
Snap knife
4x M4 Screw depends on motor mount
Small screwdriver
Your earlier prepared R/C equipment
2x Steel pushrod, diameter 1.0-1.2mm
CA Glue - medium
Activator for CA Glue or similar, but not mechanical is better
8. Final assembly
Refer to your R/C system userguide for installing information.
See video guide #9
you will need: Your own Rx/Tx system
Battery for your setup...
Velcro strip for Li-Pol battery
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9. Final completion and setting
Instal your reciever, connect batery, setup servos and etc. with your trasmitter, check servo
position, then instal propeller.
Make sure that the battery is placed properly and secured with wing battery holder, if
battery moves during flight it can shifts the center of gravity backwards and aircraft will be
uncontrollable! Never set ESC with instaled propeller, this is very dangerous!
See video guide #10
you will need: Your own Rx/Tx system
Battery for your setup...
Foam strip for Li-Pol battery
Propeller + printed spinner
Small screwdriver+
CA Glue - medium + activator
Scale markings printed to adhesive foil
10. Go flying
Before flight check center of gravity is very important (move it forward for the first flights see
CG markings bellow), battery properly charged, ailerons and elevator deflection check, your
own flying skills or RC simulator training ...
Accelerate gradually and keep the direction during taxiing by using the rudder, try it first
without taking off a few times ( taxiing on the water). Then gain speed until the plane speed
increased, pull the elevator gently and you’re in the air. Never try to start from water without
fin. Tested, did not working. For fun flying easy remove floats and land to grass.
Basic to advanced ground handling take-off’s and landing for warbirds
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11. Pilots Please Attention!
For the first flights we recommend set center of gravity of the airplane by about 5 mm forward
of the CG tag - nose heavy, this increases the stability (you can use heavier battery). Also is
good to increase expo settings on your transmitter for elevator and ailerons to 80 % (this calms
response from your stick inputs). Also you can decrease elevator and ailerons deflection.
Make sure the battery is well fixed in proper possition if it moves during flight it will cause
move CoG aft and will lead to uncontrolable flight behavior.
You can then return to the center of gravity (balance aircraft)the CoG points and expo set to
60 % as stated in the video/instructions... this gain back extra maneuverability when you will
be sure with flying your airplane.
Never fly aft positioned Center of gravity.
Please, use this files only for your own purpose, do not send
it further. Thank you very much. Enjoy your water flight.