Zerobricks Posted February 17, 2019 Posted February 17, 2019 (edited) I started working on this model many weeks ago in Lego Digital Designer first. The whole concept started with the quarter circles from BWE, which are able to perfectly accomodate the small rotors. I was heavily inspired by the (movie) Avatar's rendition of helicopters. After a lot of tinkering in LDD, it was time to start building in real life: It was here I discovered I made a big mistake. The control stick located in the cab used to tilt the rotors was reversed! I had to go back to the drawing board and correct the control mechanism. Few days, fixes and improvements later, this is what the final model looks like: I wanted the colors to randomly switch from yellow to make it look more eye-striking. Where possible I used black 2L pins instead of the blue ones. As stated in the topic name, this is a motorized model, powered by the small LiPo battery box which is hidden in the tail, next to a single M motor: The single M motor powers a total of 3 functions: - Drive rotors (always engaged, spinning in one direction only) - Opening cargo doors and rear ramp (powered by a gearbox) - Working winch (powered by a gearbox) You can see the driveline of all the motorized functions here: The red mechanism at closest to the M motor makes sure rotors are spinning in one direction only, irrelevant of which direction M motor spins. This way changing direction of the gearbox does not change in which direction rotors spin. Gearboy in front switches between openining doors+ramp and a winch. The doors and ramp are actuated by a single actuator located right behind the cockpit: The rear of the cargo doors is connected to the ramp via bewel gears, so both open at once: I also bult a small container which can be easily lifted by the motorized winch: The container can easily fit inside the cargo bay area: You can see the finished model's video below: Edited February 17, 2019 by Zerobricks Quote
braker23 Posted February 17, 2019 Posted February 17, 2019 Now this is a very sci-fi helicopter, unique and innovative as well. The way you motorized those rotors is simply genious, both light and effective. The one-way mechanism is something I have never seen before, honestly. Color scheme is very catchy, I just love it. You are a wordy competitor, good luck in this amazing contest! Quote
grum64 Posted February 17, 2019 Posted February 17, 2019 Oh man, this looks great. I really like the use of the BWE quarter circles and the way you’ve supported them. I also like the way you’ve chosen to drive the rotors. The very best of luck Quote
Rudivdk Posted February 17, 2019 Posted February 17, 2019 Where the f*** did this come from, truly some stealthy competition here !! Some very innovative and smart mechanical parts in there, I especially love the controlmixer joystick in the cab (by far the smallest and smartest I have seen)! And the rotation regulator ratchet is also really cleverly done. For my personal taste the looks are just ok, but your functionalities more than make up for that! Welcome to the party Quote
MxWinters Posted February 17, 2019 Posted February 17, 2019 Wow very impressive, love the way you made the rotors spin in one direction regardless of which way the motor is spinning, simple but very clever. Great work @Zerobricks. Quote
BrickbyBrickTechnic Posted February 17, 2019 Posted February 17, 2019 Wow, this is very very cool! I especially like how the rotors turn in only 1 direction, a small but very important detail. Quote
shadow_elenter Posted February 18, 2019 Posted February 18, 2019 Looks like something I could have built LOL Technically I really like it as well, there's some things we don't see every day! Quote
MangaNOID Posted February 18, 2019 Posted February 18, 2019 I got flicked in the eye with a rubber band once, so not much of a safety device there great model, great functions! so much happening in this. Quote
mocbuild101 Posted February 18, 2019 Posted February 18, 2019 Nice! When I first saw it in the entry topic, I thought it was @shadow_elenter's entry! Quote
captainmib Posted February 18, 2019 Posted February 18, 2019 What a great model. Simple, nice functions that work well. Great job. Quote
shadow_elenter Posted February 18, 2019 Posted February 18, 2019 1 hour ago, mocbuild101 said: Nice! When I first saw it in the entry topic, I thought it was @shadow_elenter's entry! If he wins I'm going to copyright-claim the prize! Quote
pleegwat Posted February 18, 2019 Posted February 18, 2019 15 hours ago, shadow_elenter said: Looks like something I could have built LOL With only a single M motor? Sounds implausible. Quote
shadow_elenter Posted February 18, 2019 Posted February 18, 2019 1 hour ago, pleegwat said: With only a single M motor? Sounds implausible. Well... you got me there! Thinking back, the least motorized MOC I have posted was 13 motors I just love complex RC models I guess... Quote
pagicence Posted February 18, 2019 Posted February 18, 2019 (edited) / Edited June 5 by pagicence Quote
1gor Posted February 18, 2019 Posted February 18, 2019 I have seen YouTube video about minute ago and I can only take my hat of. Quote
RabbiT_CZ Posted February 22, 2019 Posted February 22, 2019 Well done build. It is incredible it has these functions with only one motor. Quote
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