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Everything posted by Zerobricks
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42130 [Unknown Technic set]
Zerobricks replied to JintaiZ's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Remember to use /s tags. Many people don't get sarcasm, especially on the internet. -
42130 [Unknown Technic set]
Zerobricks replied to JintaiZ's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
42125 -
General Part Discussion
Zerobricks replied to Polo-Freak's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I justi noticed at around 1:32 it seems like a new type of CV joint is used to power the axle hub, the slits give it away. I have a feeling a new ungeared hub with the support for the new stronger CV joint will be coming in the next 1:8 supercar.- 5,504 replies
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42130 [Unknown Technic set]
Zerobricks replied to JintaiZ's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
In 2022. And I doubt it's a Ferrari, since we got a Ferrari this year. I think it will be another car from the VW Group. -
[TC19] Extended motorcycle with a CVT Functions: Linear front suspension Extended swingar rear suspensions upported by small turntables Constant Variable Transmission A working V6 engine Steering Features: Extended rear swingarm Detailed and complete bodywork Aerodynamic details such as winglets, flat bottom and rear diffuser Additional details such as brake discs in front and rear, dual exhaust pipes, large radiator, front fender, etc... Photo of the front view: Photo of the back view: Photo of V6 engine and details: Photo of the chassis when the model was still being built: Video of the model in action with commentary: Link to the topic:
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Is this correct?
Zerobricks replied to jorgeopesi's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
They are close enough. Besides having these links at slight tension is a good thing tor reduce the slack, since we want the hubs to be as stationary as possible. But with the 6,5 suspension arms retired I don't see why this is relavant anymore. -
At last the time has to to post the final photos and video of the model. A friend gave me a lovely photography tip which I just had to try and here are the results: Who would have though a simple black background and some Christmas lights could give such impressive results: And finally I made a video with audio commentary to highlight all the features and functions:
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It's basically same as return to center steering but using a normal non-return slider. Should be easily possible. But remember the first release of the app won't probably include all the possibiilites, we are concentrating on simple motor control, return to center and feedback statistics first because these are the most needed and basic functions.
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Inverse kinematics is a bit too much, especially since BuWizz is used more for MOCs than official models which have all the lever lengths predefined. Yes, the app will be able to provide statistics such as motor RPM, currents, angles, battery voltage, accelerations and angle positions of the BuWizz bricks. I also gave our app developer an idea about about adding a speed gauge which would calculate the speed of the model with the help of the wheel diameter and gear ratio.
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Okay, I will make a motor topic once we have a relavant major update which warrants a seperate topic. Currently the mold for the housing is being made (ETA some 2 weeks) and we are working hard on app, adding new functionality. PU motors can be controlled in these modes: - PWM simple motor - the most basic control, you just control the amount of power sent to the motor via PWM modulation - Constant speed control - from 3 RPM up to some 550 RPM which PU L and XL reach when supplied by BuWizz 3.0. Basically you tell the motors what RPM they should spin and they accelerate or brake accordingly. There are several P, I , D, etc... coefficients available to fine tune the speed regulation. - Angle control - You can specify the exact angle the motor should hold. As with constant speed there are several P, I , D, HOLD coefficients, TRIM, max. current interpeted as final positions, etc... available so you can fine tune the steering system according to the weight of the model, inertia of the whees, friction, etc... And yes the system allows for more than just 90 degrees so you can return to center models like articulated loaders which use LAs for steering. We plan to release the protocol (after we edit it so it's more public-friendly) so the community can develop their own advanced controlling AND programming solutions. Expect a video of the BuWizz 3.0 prototypes in real life world action soon.
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[TC19] Exocet
Zerobricks replied to 1980SomethingSpaceGuy's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
The color switch really makes it look much more professional and cool. Well done. -
Yes, that's what I wanted to so you can return to center systems who use more gearing, not just some 90 degrees (for example LA- based steering). Also the user will be able to specify the the max. current the motors interpet as ending positions, trim, timeout for calibration failure, etc... I suggest you ask any further BuWizz related question in the appropriate topic:
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Silly, made me laugh, thanks.
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[MOC] McLaren Senna Sabre
Zerobricks replied to JamesJT's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Nice model choice, especially with the limited fender colors. Well done. -
Today's progress: BuWizz bricks were placed lover and right behind seats to lower the center of gravity and ease access for recharging and I started working on the main support board. I managed to reduce of the shifting mechanism compared to the one in Lambo and Chiron in order to fit it in the correct position. Also Ithe steering wheel has been redesigned. And finally the gearbox has mostly been properly connected and braced:
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I don't understand why people are so obsessed with a differential tracked steering? It may have been useful in the PF era where you couldn't control motors in an analog fashion, but nowadays it makes no sense. It only adds more useless gearing and friction losses and most of the time half the motors are not even working even furthermore reducing the effficiency. Finally most modern real machines do not use such systems so it's not even realistic.
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Here's a small progress I made today, I approximately placed the gearbox , V6 engine and both BuWizz 3.0 bricks which will be used to power the model: Here's the roadmap for the structure and mechanics: Installation of the sequential gear shifter Final positioning of the gearbox and connection of all the gears and shifting elements Completion of the rear axle and suspension Secondary support of central console and V6 engine Assembly of the main support floor and sides (monocoque) Roof support
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Technic 2021 Set Discussion
Zerobricks replied to LvdH's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Is TLG trying to give people hernia? Also 6898 pieces driven by (probably) only 2 motors is sure going to be sloooooow.