3DLabPrint Qtrainer User Guide
3DLabPrint Qtrainer User Guide
3DLabPrint Qtrainer User Guide
com
Fully 3d printable
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Qtrainer
– 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 characteristics 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...
Easy to assemble, 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 a superbly performing training and durable airplane suitable even for hard
landings (with easy to change landing gear). Our Qtrainer is a spin-stall proof plane even
in low speed tight turn.
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General specifications:
Length: 987 mm / 38,8 inch
Wingspan: 1320mm / 52,0 inch
Height: 330 mm / 13 inch
Wing area: 27,7 dm2 / 2,98 sq foot
Wing loading: 56,6 g/dm2 / 18,6 oz at sq foot
Center of gravity: 78mm (3,07 in) from LE
See CG tags on wings...
Airfoil: 3DLabPrint modified
Print weight: 970 g / 48.5 oz
Empty weight (w/o battery): 1300 g / 45.8 oz
Takeoff weight (3s 3300mAh Li-Pol): 1570 g / 55.4 oz
Max takeoff weight: 1650 g / 58.2 oz
Never exceed speed, VNE: 100 km/h / 62.14 mph
Design maneuvering speed, VA: 70 km/h / 43.49 mph
Stall speed, VS(full flaps): 24 km/h / 14.9 mph
Powerplant
Propeller: electro 9x6
Motor: Turnigy 3542/5 1250KV or similar
ESC: 40A Electronic Speed Controller
or similar 40Amps
Battery: Li-Pol 3000mAh/3s (11.1V),
at least 250g / 7.6oz, 25C
Performance measurement
Max speed VH (level flight): 105 km/h – 56.7kn – 65.2mph
with APC 9x6 E Thin electro
Rate of climb: 23 m/s (5 373 ft/min)
with APC 9x6 E Thin electro
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Qtrainer, History
The design of our Qtrainer is an iconic design by Y. Matsumoto of the 1979 QB20H from the
famous Quick Build series. In the history of modeling, these classical shapes and excellent
flight characteristics have been indelibly embedded in the memory of the entire generation
of modelers.
Take this model as a treat for these beautiful machines of a thoughtful design made of
plywood and balsa. The original concept and proportions of the model are reminiscent of the
older generation of modellers of their youth and the beginnings of RC models. Undoubtedly,
outstanding flight characteristics have been further shifted by today‘s modeling, wing profile
and electric drive capabilities. The creative idea of the whole series of Quick Build models
continues in the new era of 3D printed aircraft.
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Included:
1. STL 3d files
Universal STL files designed for use with desktop FMD 3d printers and slicer software such
as Simplify3D (recommended) CURA or MatterControl (these STLs are not compatible with
Slic3r or Makerware slicers).
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4. Gcodes
Basic Gcodes prepared for direct use, as universal as is possible. Should work with i3 style
printers, you can try it out, but We cannot guarantee that it will work with your printer.
100% works with PRUSA i3 ORIGINAL 3d printers.
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Centre of Gravity
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3. Gcodes preparing
option A Gcodes:
If your printer is i3 compattible you can directly use the prepared gcodes. Simply save each to
an SD card and let 3d printer do his job. The 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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You can also use our predefined CURA or MC slicer setting file included in the package (always
adapt it for your printer, change build volume, filament diameter and so on... depends on
your printer!!!):
CURA_wing_fuse.ini (wing and fuselage parts) for part9 add botom and top + infil
CURA_ailer_elev.ini (only ailerons, elevator and rudder parts)
CURA_thick.ini (cannopy lock, landing gear... )
OR
MC_wing_fuse.slice (wing and fuselage parts) for part9 add botom and top + infil
MC_ailer_elev.slice (only ailerons, elevator and rudder parts)
MC_thick.slice (cannopy lock, landing gear... )
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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 rather than a direct connection via USB Note: ABS filament is
not suitable for this. Scaling the model will lead to unusable result!
Note: ninja flex or simmilar fillaments can glue very hard to PEI based surfaces be careful...
you can add some thin adhesive tape (plastic) to your bed, then remove...
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
(disregard with PEI or simmilar bed surface, Mk2...)
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Heated bed is very recommended, 50-60° 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 are a lot of 3dprinters on the market, most of them are OK for printing our
aircraft (specific thin wall printing...) sufficient volume, heated bed, 0.4 mm nozzle.
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aileron L 1
6g/0.21oz aileron L 2
4g/0.14oz aileron L 3
6g/0.21oz
aileron L 4
6g/0.21oz
wing L 1
49g/1.72oz
wing L 2
49g/1.72oz
wing L 3
25g/0.88oz
wing L 4
39g/1.37oz
wing L 5
35g/1.23oz
servo wing cover wing L 6
2g/0.07oz 10g/0.35oz
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NOTE: Don‘t glue the tailparts yet !!! (for rudder, elevator and horizontal stabilizer proceed
to next step)
F1
35g/1.23oz F2 battery holder
22g/0.77oz F3 9g/0.31oz
32g/1.12oz
F4
41g/1.44oz
F5
44g/1.55oz
F6
48g/1.69oz F7
54g/1.90oz F8
F9
36g/1.26oz
44g/1.55oz
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NOTE: Complete horizontal stabiliser without elevator on the desk. Elevator install separately
as last step to tail for easy pushrod mounting.
rudder 3
6g/0.21oz
rudder 2 elevator L 4
7g/0.24oz 9g/0.31oz
elevator L 4
12g/0.42oz
rudder 1
3g/0.10oz
elevator L 1
12g/0.42oz
elevator R 3
12g/0.42oz elevator L 1
elevator R 4 14g/0.49oz
9g/0.31oz
elevator R 1
14g/0.49oz
elevator R 2
12g/0.42oz
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taildragger tricycle
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8.1 Decals
Cut decals from thin advertisement foil or use any advertisement company around you for
make it. Glue it at your model by your choice.
Make sure that the battery is placed properly and secured. If battery moves during flight it can
shift the center of gravity backwards and aircraft will be uncontrollable!
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For the first flights we recommend to set the 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 aileron to 60 %
(this calms response from your stick inputs). Also you can decrease elevator and ailerons
deflection.
Make sure the battery is well fixed in proper position. If it moves during flight it will cause the
CoG move aft and can lead to uncontrollable flight behavior.
You can then return to the proper center of gravity (balance aircraft). Set expo to
30-50 % ... this will gain back extra maneuverability when you are confident with flying your
airplane.
Spent at leats 10 hours with RC flight simulator before you go out for the first time.
Flite test: RC Planes for beginners (but note: we use primary ailerons for turn, not only rudder)
Please, use these files only for your own purpose, do not
send it further. Thank you very much. Enjoy your flight.
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Shopping list
Printing material: 1kg of PLA
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