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Everything posted by Madoca 1977
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Thanks for building! Your setting is faster than my Truck. For offroad driving, I think you should reinforce the assembly around rear axle. Otherwise they will be come off by the torque of L motors. On my instruction page, you can see that 15L dark bluish gray beams which are crossing rear axle hold rear section assembly.
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Looks like an official set! The door movement is realistic. I love the clever mechanism hidden under the roof. About the bend of rear axle, can you use 11950 with 92909 instead of 32184?
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[MOC] ICARUS Supercar
Madoca 1977 replied to Madoca 1977's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Your feeling "messy" is right. The main reason is its even width and presence of too many connectors beneath the body panels.In this project, I first came up with door design built by connected triangular panels. Next I built its drivetrain. Then wheelbase length was decided by the door size and position of motors. These three elements became the unchangeable basis for deciding dimensions of body lines. So I had to adapt most connection points for putting panels on exact position. In many cases half stud build was needed. On instruction pages, you can see how I struggled to realize its body lines. To adjust connection points, I used rubber connectors, non-friction pins, softer axle pins and pole reverser handles. Still, roof and side panels are connected with slight tension (torsion?). I don't know whether it's illegal or not. Although I could build it physically without flaws, I'm not sure how LDD works.- 220 replies
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[MOC] ICARUS Supercar
Madoca 1977 replied to Madoca 1977's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Finished! Building instructions: https://photos.googl...mYyU3o2Q3FpMHBR Rebrickable: http://rebrickable.com/mocs/Madoca1977/icarus-supercar- 220 replies
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[MOC] ICARUS Supercar
Madoca 1977 replied to Madoca 1977's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I'll add instructions with parts list to Rebrickable. I built body only using available parts in white and red. If you want to build it in red, you just need to exchange all white parts for red. Of course it is possible to build whole car in black. But a dark car called Icarus sounds to me sinister.- 220 replies
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[MOC] ICARUS Supercar
Madoca 1977 replied to Madoca 1977's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Making instructions is now in progress! I'm making instructions of white version including bigger adjustable spoiler. For those who like lower spoiler, I'll add few pictures of it. (Actually I like lower version which looks like Mclaren 650s)- 220 replies
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[MOC] ICARUS Supercar
Madoca 1977 replied to Madoca 1977's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Thank you for your kind words! Actually the door design was the beginning of the project. I came up with an idea of connecting a small panel to long one using #3 connector. Then it looked like the supercar door! To make the model sturdy, I tried to set at least two connection points per single body panel. It was difficult because most of the panels should have been connected at different angle each other. In front section I used Rubber Axle Connectors which make it possible to adjust connection angles by twisting.- 220 replies
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[MOC] BMW 328 Hommage
Madoca 1977 replied to Jeroen Ottens's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I love the picture of rear! Very close to the real car. I wish I could replicate real cars like you did. In most cases it is much harder than building non-existent vehicles. I have those wheels, too. Surprisingly well suit this concept car. -
[MOC] ICARUS Supercar
Madoca 1977 replied to Madoca 1977's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
On flat and smooth surface, the power of two L motors may be enough for lighter weight. But the acceleration would be slower.In the video, I put GoPro camera with a mount made by Lego to take driver's view shot. Eventually four L motors didn't care about extra weight. It will be similar comparison between your Baja Buggy(2L) to my Baja Truck(4L).- 220 replies
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Hello everyone! This is my latest creation. ICARUS Supercar Introduction The name comes from a man who desired to fly higher using his technology. Many times I have tried to realize the speed what supercar MOC should perform. I needed “wing” called buggy motor, but all I had is a bunch of PF motors. So I connected motors together using “wax” called SBrick. Like Icarus of Greek myth, higher speed and torque may be lethal for the model itself... The result is here in the video! Weight: 1760g Propulsion: 4x PF L motor for rear wheel drive Steering: PF Servo motor Front and rear lights: 2x PF light Powered by: 2x SBrick and 2x 8878 rechargeable battery box Features: independent suspension for all wheels working steering wheel manually adjustable rear spoiler opening doors, hood, engine cover, glove box Drivetrain You may think it is not fast enough, but for me it was a relatively success. Surprisingly, gears and CV joints have never damaged or popped out even at the time of maximum acceleration. Although I had designed its drivetrain carefully, I was not sure if small bevel gears in differential withstand the load. Two 20T bevel gears of each side divide the load from differential equally. In this setting differential doesn't move back and forth easily. That means differential and 20T bevel gears hardly ever disengage. So they keep rotating smoothly even under high load. In this MOC there are three L motors (and two SBricks, two battery boxes, bunch of wiring) on the supposed location of V8 engine. So if someone build manual version with gearbox, there would be enough room for it. Body design As expected, building 1:10 scale supercar was very hard. Especially the body work. I've built one three years ago, but it was primitive MOC in every way. New MOC is heavily inspired by modern McLaren supercars. I tried to build their curved shapes using rather technic panels than flex axles. Front and rear light section happened to become different from the original mainly because of the positon of LED. Though finished model is not a copy of P1, I am happy with the result of realizing proper mid-engine proportion. Building instructions: http://rebrickable.c...icarus-supercar I hope you like it!
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[MOC] Koenigsegg One:1
Madoca 1977 replied to Pvdb's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Truly masterpiece! :wub: This is better than 42056 Porsche. A great achievement in Technic history!- 229 replies
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So shiny, so chrome! :wub: In the second half of video (faster gear setting?), it sounds to me as if XL motors are not rotating at their max rpm. Because of the battery?
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[MOC] Class 1 unlimited buggy
Madoca 1977 replied to agrof's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I also built modified rear axle which has less stress and friction. -
[MOC] Class 1 unlimited buggy
Madoca 1977 replied to agrof's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello brother! Thank you for sharing instructions. This is exactly what I wanted to build next to my Trophy Truck! Compared to my Truck, agrof's Buggy is 6 studs shorter, 2 studs wider and wheel base is 1 stud longer. I used single SBrick and a Lipo BB. Weight is about 1300g. I slightly modified connections here and there for avoiding stress of bended beams. -
Balloon tires fit well. Because of their shape, they look slightly smaller than Unimog tyres. That's why I used Unimog tyres. The whole model weighs nearly 2000 grams. Using two L motors is not enough for driving such a heavy model at proper speed. Especially on rough terrain, it would be much slower. Gearing down makes more torque but it would also slow the model. This is how I added four pairs of LEDs with tiny modification on the roof.
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I don't have any plans of shooting another video of improved version. (Maybe I will use its rear axle in future projects.) In a few minutes of driving, performance didn't make any difference between two versions. In endurance test of over twenty minutes, the original tended to be slower with squeaky noise of damaged knob wheels. But improved version kept running smoothly at the same speed as it started. When it is stationary, all four shock absorbers are compressed a little. I thought its ground clearance is good. Softer suspension will work but shocks tend to be compressed more. Then suspension travel and ground clearance become shorter. This is the comparison of two versions of rear axle setting. original improved (Rear end became higher about one stud)
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I solved the problem of rear axle! Original version in the video had noticeable flaw of worn knob wheels. I haven't known how it affected to performance until I shot the video outdoor. The noise and friction of worn knob wheels made me think that original instructions should not be shared. So I decided to build new reliable rear axle. It was hard to make it while keeping original width, torque and RPM. Surprisingly those 12t bevel gears never get worn or damaged. Each pairs of engaged bevel gears need to handle the torque of just one L motor. I've known that single L motor doesn't break bevel gears. It can be seen in my previous project of CUV and Blue Buggy. Improved building instructions and more pictures are now available at https://plus.google....64977943/albums Rebrickable: https://rebrickable.com/mocs/Madoca1977/baja-trophy-truck-with-sbrick
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I'm sorry for the delay of sharing instructions. Your reverse engineering made me surprized! It looks close to the original. Now I'm building more reliable rear axle which doesn't damage any gears. Upcoming full instructions contain this improved rear axle. Hopefully I will share them until next weekend.
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Early in the project I tested three versions of rear axle using,A: 12t black double bevel gear B: 12t + 20t tan single bevel gears layered C: knob wheel Only knob wheel version was survived. In max acceleration bevel gears disengaged immediately. Though I haven't tested yet, lubricated knob wheels would possibly work better. But they might pick up sand and dust. Actually building instructions of this MOC is already finished. Before sharing, I'm trying to fix the problem of knob wheels. Maybe I should build completely new rear axle. Then I will need to make instructions of it. A little more time please.
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For recent years I have been searching the way to build fast model using L motors efficiently as possible. But... again my model showed clearly that PF motors could never be the replacement of buggy motors.About front suspension, I made lower arm sturdy for not bending shock absorbers. So the shocks compress almost straightly with minimum friction. Anyway, TLG should release new buggy motor for RC LEGO enthusiasts!
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Hello everyone! My new creation is a big scale Baja Truck. For the first time, I used two SBricks for better control. Weight is 1920g. It is almost the same as gsia17's awesome Trophy Truck. Since I do not have RC buggy motor, I had to build it using PF motors. Honestly body color is not the best. I just have many red #3 connectors and wanted to use white 19L softaxles. I think it is easier to build it in all white. And using stickers will make it look better. (Though that's not my way:) This Truck is powered by two 8878 rechargeable battery boxes, and propelled by four L motors geared 1:1. Two for each side of rear wheel. Left side of drivetrain is connected to fake V8 engine. Steered by Servo motor, which is connected to steering wheel. Two pairs of LEDs are put behind the front lights. Adding more LED for roof light bar is possible. I tried to make suspension movement like real Trophy Truck. Front module including independent suspension is connected to main chassis at positive caster angle. Rear suspension is solid axle with long trailing arms. Front suspension travel is about 5 studs long, and rear is 7 studs. It was challenging to achieve proper driving speed on bumpy ground using PF motors. The result was not the best, but was acceptable to me. Sbricks did their job so well. As expected, some parts in drivetrain got worn. Especially knob wheels. While I was shooting the video for two hours, they did not affected driving performance. So far they just made noise which is heard in the video. But someday they will certainly be damaged too much and need to exchange. EDIT: I have fixed the problem of knob wheels. Improved drivetrain doesn't damage any gears. :thumbup: Building instructions and more pictures: https://photos.google.com/collections Rebrickable: https://rebrickable....uck-with-sbrick I hope you like it!
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Double Trouble Trophy Truck
Madoca 1977 replied to rm8's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Just awesome! I wanna see the race of Yours vs Sariel's orange Trophy Truck. (or his upcoming one:)It will definitely be the hottest! How many parts damaged after driving?