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Showing results for tags 'ev3'.
Found 184 results
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Lego Elephant EV3 Project
cawlar posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Elephant walk.Very nice Walks. My students did a study with six hours. Good Work. -
[EV3] Rubik's Cube Solver
cawlar posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello, Rubik Cube robots capable of using ultrasonic sensor. . -
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The original idea for the EV3 and NXT
cawlar posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello, I need advice for individual projects.I have done some work on my channel. Can you review? Waiting for your comments. Good work. https://www.youtube....m3IuBvcPALsXwGQ -
[REVIEW] Lego Mindstorms Ev3 SENTIN3L by Daniele Benedettelli
DamonMM2000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
This is an unofficial review of Daniele Benedettelli's SENTIN3L from his book THE LEGO® MINDSTORMS® EV3 LABORATORY. It serves as a guard/patrol type robot and features 2 Large Motors, 1 Medium Motor, 1 Color Sensor, 1 InfraRed Sensor, and 1 Touch Sensor. These function for synchronized front legs, synchronized laser arms for blasting/shooting, autonomous behavior, color-programming, and more. Also featuring the COLOR CUB3! Since the stickers aren't specific in the book, I added them in the most aesthetic design I could. Please let me know your thoughts on my review style; I gladly accept any advice and suggestions for improvement! -
[EV3] Lego Mindstorms DragRac3r
DamonMM2000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
https://damonmm2000.files.wordpress.com/2015/04/dragrac3r.png https://damonmm2000.files.wordpress.com/2015/04/img_0636.jpg Hey everyone! I'm glad to present my newest project, DragRac3r! DragRac3r is a really fast dragster with a 3:1 gear ratio powered by two Ev3 Large Motors. The rear tires are compounded for wide, thick rubber. An Infrared Sensor acts as the driver and allows remote-control of the model. Details such as the steering wheel and hands are included. It has massive exhaust pipes and uses unique building techniques (check out the engine bay's angled panels). It has realistic looks and has an aerodynamic exterior. Other details include cooling fins and more. It can also drift via skid steering! Oh, and did I mention custom stickers? -
[WIP] Automatic train turntable (and other things)
MajorAlvega posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello. This is about trains but I think it's more appropriate to post it here under Mindstorms theme. My LUG (PLUG, from Portugal) train fellows have been developing their own modular standard (MFL) for our exihibitions. Since it defines a 6-brick height above the table surface there is plenty of space under the tracks to hide motors, gears and gadgets. That idea attracted me so I decided to try MFL. First I rebuilt a motorized track switch I was already using with WeDO and then decided to also try a turntable and then... well, you know :) At this stage, this is my setup: - a Mindstorms EV3 running ev3dev (Debian linux) to control everything - a wi-fi USB dongle (not essential but allows me to use my laptop as a console, much more easier this way) - a bluetooth 4.0 USB dongle to control the SBrick-based trains - an EV3 ultrasonic sensor to sense when the train reaches the middle of the turntable - an EV3 touch sensor to sense each time the turntable completes a 180º turn - two Power Functions lights (with a NXT-9V adapter) to signal the movement of the turntable and the control of the train - one USB RFID reader to sense/identify the trains - one LEGO WeDO to control the two track switches (one Power Functions M motor under each) Each train has: - a SBrick (will try IR later) - a RFID tag The train is brought to the RFID sensor where the EV3 recognizes the train (green lights start blinking) and tries to establish a bluetooth BLE connection to the SBrick (green lights keep ON). Then the EV3 takes control and sends the trains to the turntable, using the ultrasonic sensor to prevent collision against the end of the turntable. When the turntable starts turning, the red lights blink (and a claxon sound plays, but its not used in the video). There is also a touch sensor under the end of the track that senses when the turntable completes each 180º turn. Then the EV3 sends the train back to the starting point, using the RFID sensor to detect the train. The bluetooth connection is dropped and now the train is available for manual control. The EV3 is ready for another train. For a near future I plan to give good use to the track switches (only one is motorized but the second will follow soon). I also want to try a method I saw here at Eurobricks to separate the train engine from the wagons. This way the train engine could drop the wagons, revert direction at the turntable, move along the left path and pick the wagons again. To be honest, the turntable still needs some adjustments - sucess rate is ~1/3, sometimes the train slips when moving in, sometimes when moving out. -
[EV3] Chopp3Rod - Motorized Hot Rod Convertible
DamonMM2000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I went retro this time around and decided to build something as big as I could without compromising the look. Chopp3Rod is the result of many hours of work, sporting both an attractive interior and exterior. The wheels are driven by independent direct drive via two Large Motors. A complex program allows the drivetrain to mimic a differential since a real differential was not used. Therefore it has an electronic differential! It sports many details, including a V12 engine, transparent lights, a Color Sensor headlight, comfy seats, clear quarter-panel windows, side exhaust, curvy wheel arches, rear tonneau cover, custom wheel hubs, and more! I am really happy with this model and how it turned out. -
[MOC] 2010 Cadillac CTS-V Coupe w/Mindstorms Ev3
DamonMM2000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hey guys, I've built several Lego vehicles with MINDSTORMS® and decided to use my experiences with previous vehicles to build a real car. I was originally looking at building a Ford Escape, but the blueprint scaler measurements came out all wrong, so I turned to a Cadillac CTS-V. I'm a fan of the CTS-V, mostly because of the luxurious ride and smoking performance fused into one car. Here's a picture of the real-life vehicle: Please note beforehand that I am building a model based off the Cadillac CTS-V, but not necessarily an exact replica, partly due to less than a total of 2,000 pieces and partly because I don't have a lot of pieces of just one color I'll try to share the blueprint with measurements tomorrow, and because I am already working on a few builds at once, starting this work on spare parts will be a bit slow for a couple weeks. I hope you guys enjoy the progress! If you'd like to, please check out my previous vehicular builds: Outland3r - Outland3r 2.0 - RX2 Thund3r Truck - AWD MiniKart - Chopp3Rod - -
Just learned about this tiny Intel Compute Stick Wondering if it might be practical for use with LEGO Wedo, Minstorms NXT and EV3 BTW how are LEGO Train configured. Does it need a computer? -
AWD MiniKart with 4 Wheel Drive
DamonMM2000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
AWD MiniKart is my latest creation using three differentials. This is my first attempt at building an All-Wheel-Drive drivetrain, but it was worthwhile the effort. I wouldn't say this is a huge success, but it works well on perfectly smooth terrain. I do have a few ideas for a 4x4 vehicle now ;) It uses two Large Motors to drive the center differential which distribute the power to all four wheels, and the Medium Motor steers the Rack and Pinion setup. I also built a custom base stand for some video purposes; it's not hard to build and has good usages. Any more information you would like will be happily answered. Until NXT time… DamonMM2000 Please click to watch a detailed video on AWD MiniKart! -
Mindstorms Motorized Ev3 Rear Wheel Drive Monster Truck
DamonMM2000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
A LEGO® MINDSTORMS® Ev3 2WD/RWD rock crawler inspired trial truck with live axle suspension, 80 N.cm torque thanks to the special adder mechanism, and more. Built for off-road yet also for speed racing 74 feet in 26.49 seconds (2 mph). For the video please click here: PS-Could someone show me how to embed YouTube videos? Thank you! -
Hello everyone, I am DamonMM2000, and I mainly build LEGO MINDSTORMS robots! I also build Technic creations with Power Functions too. I am excited to join the Eurobricks forum and look forward to meeting you guys I currently have the highest MindScore at the official Mindstorms Gallery and have had three of my robots featured on the official Mindstorms website. If you would like to know more about me or check out my work, please visit: Feature site Mindstorms and Technic: MindTechnic blog My blog: DamonMM2000 custom Mindstorms creations My Mindstorms Community profile: DamonMM2000 (MindScore: 29000+) My YouTube channel: DamonMM2000's LEGO Mindstorms Robots New Community and gallery website: MindTechnicLOG
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Lego Wedo controlled by EV3dev
pcfw posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Ralph Hemple made a video showing -
Controlling Power Functions with EV3 and iPad
RedRoundRobot posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I am a big fan of controlling those little Power Functions motors in every way possible ( and I like making apps :) ), and with that in mind I created this lovely iPad remote that connects to the EV3 and with it’s help and the two well known IR sensors ( PFMate and IRLink ) controls Power Functions motors ( and EV3 or NXT motors ). This is a little demo of it in action: And explained in words, starting from the left: NXT motor connected to Port A EV3 motor connected to Port B Small PF motor connected to channel 3 and to the blue connector on the IR Receiver on the left ( on top of the battery box ). The EV3 sends the IR signal through the IRLink sensor ( connected to port 3 on the EV3 ). The power in this setup comes from port D on the EV3, going through a x1676 Conversion Cable + extension wire ( 8886 or 8871 ) to the battery box, and then to the IR Receiver. Of course the power to the motor can also come straight from the battery box ( with batteries : ) and no other conversion , extension wires...). It really isn’t a good idea to power so many motors from one EV3 port, I was short on battery boxes so… XL motor connected to channel 1 and red connector of the IR Receiver on the right ( top of the battery box ). IR signal received from IRLink ( connected to port 3 on EV3 ) XL motor connected to channel 4 and red connector of the right IR Receiver. IR signal received from PFMate ( connected to port 2 on EV3 ) the commands can be recorded and played back ( even in reverse ) all motors can be powered at the same time ( use different EV3 ports!, or battery boxes with batteries directly! ) - it can handle 16 motors ( 2 screens ) of course control speed, direction, label buttons, motors, save remote... and even a servo motor option for EV3/NXT motors. And here is a short video with it put to good use with a 42006, 3 motors and IRLink :) : The app can be found here: https://itunes.apple...d921365042?mt=8 There is also a version for the NXT ( it is actually my initial app PFremote ), but that one requires a server app ( MAC, PC or Android ) to act as a bridge between iPad and NXT ( not complicated, but not as convenient as a direct connection to the EV3 ). The EV3 WiFi came in very handy to make a direct connection to the brick ( YES ! :) ). -
LEGO WeDO with Linux and Mindstorms EV3
MajorAlvega posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hi all! I don't know if WeDO fits here at "Technic, Mindstorms & Model Team" but didn't find a better forum theme. The ev3dev people are preparing a WeDO driver for Linux. It will allow any Linux system [EV3 ev3dev included] to use WeDO. Not just ONE WeDO USB hub but as many as you want/have. I got excited and got two WeDO USB Hubs and a tilt sensor. And while waiting done my own tests. There is already a python library for WeDO: wedo. But I could not make it work so I used a variation: WeDoMore. It works fine with my Ubuntu laptop and with Mindstorms EV3 running ev3dev. I believe it will also work seamless with a Raspberry Pi, will try it later. Some more details at my blog. I've also found Philo photos of the WeDo internals and used it to reverse-engineering the tilt sensor. With just 4 resistors and a Power Functions connector we can build a 4-switch control and read it as a tilt sensor (one switch for each tilt state). More on this later. -
[EV3] Blu3s Brick plays the Blues
Aswin posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Introducing my latest robot, Blu3s Brick. Blu3s Brick is a Robot that plays along with midi music. It does not make the sounds, but its movements are in sync with the Midi music that is played by a synthesizer. It is able to play and sing along with any midi file. For those who like the technique behind it. Here is a very short explanation. Midi files do not contain sound like MP3's. instead they contain instructions for electronic instruments like synthesizers. These instructions have the form of "play note x". On my computer I have a sequencer running that sequences these instructions and sends them both to a synthesizer and this robot. The robot is programmed to react in a appropriate way to the instructions using lejos. The heart of the robot is an EV3 brick. Enjoy! -
Controlling Power functions elements from Mindstorm EV3
darksheep posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hi I have an EV3 and I was wondering how people control power functions motors and lights from the EV3. I have done some searching and found the following solutions , I was hoping some one might have tried these products and could give me some feed back . If you have any other method of doing this let me know. mindsensors PF Motor controller for NXT or EV3 (PFMate) GlideWheel PF and RCX Motor controller for NXT or EV3 hitechnic NXT IRLink Sensor -
Design issue, help needed fitting the LAST PIECE [pics available]
brigadier90 posted a topic in Digital LEGO: Tools, Techniques, and Projects
Hey guys, Ive designed in my lab the following construct, which i found in a book: I am trying to use this construct as part of a manual i am making in LDD. However in LDD, when i try to place the final piece, which is the bevel gear Z20, it doesnt allow me. Please see image below: Any idea why this perfectly physcally feasable construct is impossible to build in LDD? PLEASE HELP Thank you -
Mindstorms EV3 for various automation
jonha134 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello folks! I have had various "automation"-ideas for Mindstorms (EV3). But it always comes down to the "always on" issue. I have not yet invested in Mindstorms due to this. It basically boils down to the following questions: 1. Is there any problems with having the charger attached to the intelligent brick for extended periods of time (always)? 2. Is there any way to prevent the intelligent brick from automatically shutting down due to inactivity? 3. Would it be possible to automatically initiate a sequence of actions when a paired bluetooth device comes within range (i.e. a motor starts spinning when my phone enters the room)? I am obviously a newbie when it comes to Mindstorms :-) Best regards, Jonas -
[MOC] EV3 Minecraft Creeper Mashup
joshdont posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Not sure how appropriate this is! Understandable if it gets flagged. First time confused poster : ) This is a mashup using a LEGO EV3 (EDU version, but Retail instructions are included) kit with 3/16" thick foam core, for the purpose of creating a 2 foot tall Minecraft Creeper. Full build instructions: http://www.instructables.com/id/Large-LEGO-MineCraft-Creeper-Bot/ I hope this helps someone in need of a fun weekend project : ) -
Hi, I am new to this forum and hope I can live up to your standards. I wanted to share my holonomic robot Agilis. It is build for the EV3 and uses Rotacaster holonomic wheels. The robot is fast and agile, hence its name. The trianguar frame is sturdy and has three sensors docks (not populated in the picture). I do not have a video of this robot, but I do have from an older version that uses the NXT for control. It highlights the kind of complex movements this robot can make.You can also download the building instructions I made, in PDF or in LDraw. I tried to describe the technique of the movements on my blog in several posts regarding Agilis. They might be a bit technical though. Aswin
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[EV3] [HELP] Patrol Dog
Doc_Brown posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I was just wondering how hard it would be to implement an idea I had for a EV3 moc. Basically I want to create a patrol dog model and its functions include the following. -Search and establish territory perimeter (living room) -Randomly patrol in the area -Return to Red water bowl occasionally -Return to Blue dog box to rest occasionally. ( when battery gets low, with a unique bark to let owner know) -Bark at any loud sounds (if possible) I'm not sure what the minimum of sensors would be required to perform such tasks, or if all the above is possible. Any advice would be very welcome. Also are the NXT motors and sensors are compatible with the EV3 block? Thanks! -
[EV3] Mindstorms EV3 Software (Education vs. Home)
BrickDaddy posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hi All, I want to share some information regarding the LEGO Mindstorms EV3 Software here. The software is available as a 120.-€ education version and as a free "home" version. When I bought the education version, I faced some issues and made some experiences which might be worth to be shared as I couldn't find the information in the www, yet: The 2 software versions are based on the same core software. The education version is enhanced with "data logging" functionality and more than 50 "training" sessions for the programming elements, sensors, etc.. One who is interested in learning to program and a starter (like my 9 yrs. old son) has a real benefit with the education version and I can say that the additional content is worth to spend some money for it. The home version is provided as download in all available languages while the education version is being sold in "market specific" language bundles. I couldn't find any official information about that, but when I bought my software in the Netherlands I got a BENELUX version key which allows me to download the software only in the languages "english", "dutch" and "french". This is somehow strange as "german" is an official language in parts of the BENELUX countries ... Unfortunately, one does not see this "limitation" as the EV3 education software has the same LEGO part number (2000045) in all countries and the available languages can only be seen after the activation / registration of the software. The LEGO EV3 education software is shipped as an activation key which allow to download language specific installation files from the lego education website. After the activation, the LEGO EV3 education software is registered to the user account and cannot be removed any more, which implies that it cannot be resold. Note: Reselling is also excluded in the license agreement. An interesting discussion if this is compatible with the European copyright laws as they generally allow reselling of "used" software. The bricks firmware is also available in a "home" and an "education" version. The education version is enhanced with a "online data logging functionality" which allows to remotely monitor (via Bluetooth/USB/WLAN) the sensor values on a computer. The source code of the firmware home version has been released by LEGO and is available via https://github.com/m...ards/ev3sources. So, that's it for now. If someone has specific questions regarding the software versions, I will be happy to provide an answer, if possible. Cheers, BrickDaddy -
SL3IGH: a Christmas robot
AVCampos posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Here is something I built for the MCP Program, using exclusively parts from set 31313: This is Santa Claus' sleigh, pulled by his faithful reindeer Rudolph! Rudolph pulls the sleigh by using the same leg mechanism I came up with for : a simplified version of the Klann linkage. Besides the large motor for walking, there's another one for (very roughly) adjust the angle between Rudolph and the sleigh to allow for curves, and a medium one for making Santa wave his arm.Of course, Rudolph has to have a red nose! The colour sensor, set for reflection mode, gives the nice redness. Like with , I made a point of using the infrared sensor "upside down" for Santa's eyes, to avoid the "aggressive" look given by the lines printed on the sensor. I tried to have the EV3 prominently displayed, with its side ports for USB and SD unobstructed, and reserved space for the rechargeable battery.I really like how the robot turned out to look: it was fun trying to make the most of the 31313's relatively limited assortment of parts (for example, some dampers for Rudolph's hooves would be most welcome). On the other hand, I really wasn't able to make it work well: with an EV3 loaded with batteries, a large motor, a medium motor, and assorted parts, the sleigh got really heavy for Rudolph to pull, even with wheels underneath. Also, the steering is just too abrupt for direct remote control, and I couldn't find a way to gear it down while using the available parts and still look cool. Here is the video of it in motion. And here are some more pictures. If you want to see any detail or other angles, just ask. I hope you like it!