DISCOVER CONFIDENCE in YOUR FIRST FLIGHT.
74X-i2A
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In testing, the "i2" exhibited zero stall tendencies—even with full up elevator deflection held. This makes landings incredibly predictable and satisfying. If you can land a Cub, you can land this. Just allow for a slightly longer approach and a bit more runway.
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The scale outline of this airliner is undeniable and easy to see, even at a distance. The huge vertical fin and swept wing profile make it easy.
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Though a jumbo jet, there was a relentless effort to engineer the airframe as light-weight as possible. All while retaining structure for handling and transport. The biggest benefit, of course, is the smooth and docile performance due to low wing loading.
NEXT-LEVEL PRINT QUALITY. UNMATCHED PERFORMANCE. ENGINEERED FOR REALISM.
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NEVER QUANTITY OVER QUALITY- MORE FLIGHT SUCCESS- LESS CRASHING- MORE ENJOYMENT & FULFILLMENT
"This airplane is extremely detailed and flies unbelievably well! Better than expected." -
Tom Mansell
HM3D Design Feedback & Boeing 747-400/-8 Captain
HM3D FREE BUILDER'S ACCESS
Building a community to push the Future Development of un-imagined RC Airliners and HeavyJets
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BUILD CUSTOM AIRCRAFT GCODE USING THE VARIANT SELECTION TOOL (currently no slicing required-ender3 )
ENDER 3 STYLE GCODE AVAILABLE NOW & MORE IN DEVELOPMENT.
CREATE AN ACCOUNT AND SUBMIT A REQUEST FOR YOUR PRINTER PROFILE TO BEGIN GETTING GCODE WITHIN 24 HRS.
minimum printer build
220x220x250
Use The Custom Variant File Creation Tool Under The 74X-i2A Gcode Tab
AN EVER EXPANDING COLLECTION OF AIRCRAFT SERIES VARIANT OPTIONS
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HIGH QUALITY PRINTS WITH MULTI-PROCESSES BAKED IN
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MINIMUM TWO HIGH QUALITY AIRCRAFT RELEASES PER YEAR
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CONTINUOUS FILE & DESIGN UPDATES, REFINEMENTS, & ADD ONS.
(EXPECT SURPRISE DROPS BETWEEN AIRCRAFT RELEASES!)
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FACTORY FILE ACCESS FOR TWEEKING YOUR OWN PRINT SETTINGS.
SIMPLIFY3D version 5.1.2
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FULL STL STACK DOWNLOAD TO USE WITH OTHER SLICERS. (PROCESS GUIDE IN BUILDER'S SITE)
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COMMUNITY BUILD FORUM
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AIRCRAFT PART DOCUMENTS
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B.O.M. & PRODUCT LINKS
FOLLOW ALONG BUILD VIDEOS
CORTNEY'S JOURNEY
Follow along as she takes you from 3D Print, all the way to FIRSTFLIGHT.
1) LANDING GEAR ASSEMBLY POSTED
2) FUSELAGE ASSEMBLY PART 1 POSTED
Get Downloads, Parts, & Build Bundles from the builder's store!
MONTHLY GIVEAWAYS
For signed up builders. Just create an account. Free.
JOIN US FOR PAINTING AND FINISHING DOCUMENTATION IN 2025!
Summer 25' follow along video series demonstration with materials list, steps, and techniques. See you then!
G-CODE SAMPLE
Here, test out a sample gcode print.
Load this file onto your printer, hit print, and see how you like it.
Colorfabb LW-PLA
If you have a cartesian machine that is a "downstream" design inspired by the Ender3 and runs on marlin firmware, the Ender3 Gcode will very likely run fine on that setup. The Ender 5 is actually included in that group, though it's design appears to be a core x y. So we hear. Let us know otherwise please.
If you're printer is not listed here, please contact us and we'll get that posted for you.
Ender3, CR-10, Artillery, Prusa, Etc.
Bambu Lab P1S
Flsun V400
Creality K1
HM3D 74X-i2A SPECS & FEATURES
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60" span
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71" length
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6-8 lbs flight weight
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4x brushless outrunners power 4x 50mm 12 BLD EDF (3d printed adaptor required)
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min. 5 channel Rx/Tx
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6s 2p 6400mAh Li-ion or 5s 1p 5000mAh Lipo
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7 to 15 min flight times recorded. Dependent on packs and motors.
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4-in-1 35A drone ESC in opto
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4 to 6A BEC
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Servo options- SG-90/ TGY-1440A / ES9051 / KST-06
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4-in-1 esc
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Scale NACA ducts provide cooling to electronics
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Spring lock center hatch (13" length)
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Detachable Tail section, Tail cone, and Nose section for access and transport
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detachable wings with boltless 3d printed double click-locks for ultra convenient transport and assembly.
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18x 3d printed foam wheels with smooth bearings
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retracts- no (in development for i2B)
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landing gear suspension (nose- strut spring, mains elastic tensioners on rotating trucks.)
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stationary scale flaps for aerodynamics and realism. (functioning electronic flaps in development for i2B)
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high speed Ailerons
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Optional direct servo or pushrod tail variants
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Proprietary LED System with multiple on/off switches from TX and designed to install neatly into aircraft
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Majority of airframe printed in vase mode with multi-processes for hardpoints and bulkheads using simplify3D slicer software.
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Vinyl cut graphics for windscreen, passenger windows and doors.
ENJOY REFINED FEATURES
An exciting ambition we have at HM3D, is the promise to continually REFINE, FIX, UPGRADE, and ADD to the over-all designs, and Gift the community with revised file postings and options.
Gigantic Access Hatch with spring Latch
3D Printed LW ASA Plug System
Tail Cone Magnetic Hatch Access to Tail Linkage
Tool-less wing locking tabs and clever cable management (including Dynamic Lighting System designed in-house)
Battery Tray designed in print
