Free plans for Nucking Futs



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    Free plans for 3D printed rc airplane Nucking Futs


     A small 3d printed Speed 400 pylon racer.

    Wingspan: 720 mm (920 mm when using BigWing version)
    Length: 578 mm
    Est. weight: 450 g
    CG: 26 mm

    Suggested throws:
    Elevator: 3-5 mm
    Ailerons: 4-6 mm

     

    Free plans for 3D printed rc airplane Nucking Futs

     

    Elevator should be hinged with CA hinges. Ailerons should be hinged with 2 mm carbon rod. The carbo rod may need to be sanded slightly to fit. Sand the rod using relatively fine (320-400 grit) sandpaper under a running faucet, which eliminates the dust and keeps the rod cool and clean. Aileronhinge01 is the center hinge support where the wing parts join together. All control surfaces have integrated support towers. Without them they would not print successfully. Remove the towers after printing. The towers are on the bottom of the surfaces.

    Free plans for 3D printed rc airplane Nucking Futs

    The wing parts are very strong and only need short 6 mm joiner bits between the parts to add joint strength. I recommend 6x60 mm pieces of carbon tube. I have added printable Wingjoiners which will work in a pinch. If the carbon tube is too tight sand under running water until it fits. Ailerons need to be installed at the same time as the wing is assembled. Wing04 is an elliptical piece that goes on the back of the wing. Use an M3 screw and nut to attach the wing. Warm the nut with a heat gun before you insert it into the fuselage so that it doesn't crack the fuselage.

     

    Free plans for 3D printed rc airplane Nucking Futs

    The CG should be about 26 mm fron the leading edge. There are two bumps under the wing to help find the CG with your fingers.

    The horizontal stabilizer is aligned with two 2 mm pegs made from whatever you want, for example 2 mm carbon rod. Use a countersunk M3x20 (or shorter) screw to attach the stabilizer to the fin.

     

    Free plans for 3D printed rc airplane Nucking Futs


    The bottom files in the file list have special properties. Here is a description:
    Largeprinter: Parts that can be printed on a printer with 300 mm height to reduce the amount of parts.
    Externalmotor: Parts that facilitate external mounting of an outrunner of up to 28 mm diameter in front of the motor firewall. Requires support inside the motor cavity.

     

    Free plans for 3D printed rc airplane Nucking Futs

    Nofirewall: Nose parts without a firewall. Suitable for glueing a wooden firewall or glueing in a 28 mm inrunner directly.
    Cox049: Nose section for mounting a Cox 049 engine directly to the front. High strength when printed two perimeter and 100% infill for the first 10 mm

     

    Free plans for 3D printed rc airplane Nucking Futs

    Print Settings:
    Rafts: No
    Resolution: 0,2
    Infill: 0%
    Filament: Any PLA

    Notes:
    Print most parts with one 0,4 mm perimeter, zero infill and four to five top and bottom layers.
    Print the firewall section of the nose with 100% infill. The rest of the nose can be printed with one or two perimeters. Two perimeters in this area increases weight by about 10 g.

     

    Free plans for 3D printed rc airplane Nucking Futs

     

    Electronics:

    Racerstar 2445 Motor Senseless
    Buy: BangGood, AliExpressHTIRC Hornet Series 30A
    Buy: BangGood, AliExpressFMS Predator 30A Brushless
    Buy: BangGood, AliExpressFavourite FVT Swallow Series
    Buy: BangGood, AliExpressJX Servo DHV56MG 5.6g
    Buy: BangGood, AliExpressJX PDI-1109MG 9g Metal
    Buy: BangGood, AliExpress1pc KMP 4545 4.5X4.5
    Buy: BangGood, AliExpressAHTECH Infinity 1300mAh 3S
    Buy: BangGood, AliExpressGaoneng GNB 11.1V 1300mAh
    Buy: BangGood, AliExpressTATTU 11.1V 1300mAh 75C
    Buy: BangGood, AliExpress

    Aileron — 5g servo (x2)
    Elevator — 9g strong servo
    Brushless motors with a diameter of up to 28 mm will fit. I estimate a kv of 2500-3000 kv with 3S lipos for adequate performance.



Tags: electro, speed
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