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Background With some colleagues of mine, I am working on a fully automated train layout. You can read more about this at our blog: siouxnetontrack.wordpress.com. The layout is always demonstrated on Lego World in Utrecht. We gave a demo at another event, as can be seen on the following Youtube video. One of the items I have been working on, is the Candy Rotation Stock. I made a working version, as can be seen on the next video: Redesign of the Candy Rotation Stock After building the final version of the Candy Rotation Stock, I transported the object to our office to integrate it with the other parts of the track. I found out that the CRS was not robust enough and it took some time before it worked again. Although the concept works, it was not good enough to run for a couple of minutes without problems. And I needed it to work for four days at Lego World! So I took the difficult decision to redesign it. In this thread you can follow the progress. The redesign will be based on the conveyor belt that I found on Youtube (user ssugawara1955): And this is my proof of concept: I have ordered some extra parts to make a complete square and two switch points: one switch point that will lead to the Crane Pickup location and one switch point where new containers can be inserted to the rotation stock. Some more photos of the progress can be viewed on flickr: https://flic.kr/s/aHsk8h6MAc . Enjoy. /Hans -
[MOC] Fully automatic Clock
Gonkius posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
This is a fully automatic clock that was finished end of 2014. So, why do I call it "fully automatic"? - The clockwork runs as a normal mechanical clock with a pendulum and counterweight. - There is a motor that winds the clock every hour. - The speed of the clock is adjusted once a day using the Mindstorms unit. The speed is adjusted by changing the length of the pendulum. In total, the clock runs for itself without any assistance, and it shows the right time, even if it is build using only LEGO bricks. (Apart from the string to the counterweight) There have been many challenges in this design. My main focus, except the obvious goal to make everything to work, was to make this as compact as possible. The whole clockwork fits inside 14x14x14 studs. I did a short video to show the "action": The two sensors are used for: 1. Stop when the counterweight is fully winded 2. Give feedback from the minute hand rotation back to the Mindstorms unit. The counterweight is made out of 12 train/boat weights and is about 0.68kg. Winding is done through a differential to avoid interruptions during the winding. There are two medium motors inside the clockwork for the winding and adjustment. The Mindstorms unit is hidden in the base behind a hatch: WIP pictures Specially designed differential gear to reduce the friction between the counterweight and clockwork as much as possible. The winding motor rotates the large turntable gear: Clockwork prototype, without any automation: Very first prototype of the escapement: -
I have just got a Mindstorms Robotics Invention System 1.5. I have installed the software and running in on Window7 and am running it compatibility mode for Windows95. I have got to the bit to connect the IR transmitter with the 9 pin cable. It looks OK but nothing happens I think it needs software drivers. Do you have any suggestions? -
Hi guys, Salut tout le monde, I'de like to share here some links to The NXT Step blog where is presented the ROBOT REMIX #1 challenge, where the MINDSTORMS team challenged some of the MCP (MINDSTORMS Community Partners) to come up with creative ways to remix a given Technic set and the Home edition of the EV3 set. for ROBOT REMIX #1 the Technic set is the brand new Sea Plane, a great Technic set that happens to be in the same color scheme ;) In this first post, is explained in a bit more details what is ROBOT REMIX http://www.thenxtstep.com/2015/08/robot-remix-1.html Then this week was presented the first of 4 remix, this one from master Isogawa http://www.thenxtstep.com/2015/08/robot-remix-1-exhibit-helicopt3r.html Stay tune for the presentation of the other 3 remix in the coming weeks. : . . baz
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Hello all! I was browsing YouTube and found this awesome creation Copied from description: A technic pin sorting machine using compressed air for ejecting pins The pins are feed from the tumbler one by one and dropped on a fast moving conveyor. This ensures a minimum distance between the pins. Next they pass a color senor which measures the color, shape and length of the pin. These measurements are compared to the profiles of all types of pins and scored by similarity. The matching profile gives which output to activated and when to do it. Pins that don't pass the similarity threshold are ignored and drops in the container at the end of the conveyor. If only them made instructions so blakbird can review it NOTE: this is not mine! -
Mindstorms EV3 for kids question
JGW3000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hey guys, I am serious considering getting the EV3 set for my kids, so they can learn a bit about robotics and coding - they are 10 and 7, so should be age appropriate. I am not at all familiar with the EV3, so hopefully someone can answer these questions. Can a Win 8/Win 10 PC be used to program the control brick? Will an old smart phone (deactivated) be useful for bluetooth control? Will this actually be a good introduction to coding? Aside from the EV3 set, should I get additional sensors or motors - we have plenty of bricks and technic parts already, of course. thanks! -
[WIP] Supra Yacht - NXT boat
syclone posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Good day everybody and let's continue with the boat mania!!! Today I would like to post my experimental NXT project- The Supra Yacht. It uses two Nxt motors for propulsion , but I disn't tested the propulsion system yet. It is built on top of two 1l plastic water bottles , and all electronics are on top.Because every NXT component is on the rear of the boat I built a long mast on the front for maintain the balance. The mast is connected to one Nxt motor. Here's the video: -
Hi there, I'm new, and this is my first robot on this forum! So today, I'll be showing you the EV3 Camera Bot! This robot is controlled by remote, and it can move by wheels, and even press the trigger by remote! It IS actually a pretty practical robot, as it can get into places where humans can't squeeze in, such as under a bed. Anyway, just check out the video below!
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Can your LEGO do this?
rollermonkey posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I don't even know what to say. This is not mine, but I just saw it: As he says: It's LEGO, and it plays the guitar. I'm impressed. -
Used old RCX v1 with additional signs on display
mrfuture posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I recently got an old battery damaged RCX cheap. Moistly for its parts since the RCX was question. I cleaned it an it was working again with the sign of no firmware installed. But later when I finally found a copy of v2 RIS software it was starting to show additional signs on the display. That's before I could do anything with the software. When I turn it on it may beep a darker tone. The signs is just garbage. Not any real text beside the figure sign. If I try to turn it off, it would not shut down before I remove the batteries. I have also tried new batteries. -
[EV3] Super Stadium Truck – Motorized Short Course Vehicle
DamonMM2000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
This is a large short-course style stadium truck built with Lego Mindstorms Ev3. It features independent rear suspension and a front live axle with steering. One Medium Motor controls the steering, and one Large Motor drives the rear wheels. It also uses the InfraRed Sensor for Remote Control. The reasons I used only one motor in this model are: 1. I was attempting to reduce weight, 2. The chassis of the truck is even studs wide, not odd; not allowing a very easy placement of two motors, 3. This vehicle was built as a test vehicle for the new 4-stud wide differential I got a while back but never used until now. The drawbacks of this truck are: 1. One motor does not exert nearly enough power, 2. The old-type differential makes it impossible to not use more gears in order to transfer the power, 3. All the gears used decreases efficiency massively, 4. The rear independent suspension worsens performance, 5. A 3:5 gear ratio was used (a 1:3 would have been better), 6. The truck is very large, bulky, and heavier than most other robots that I have built. I extremely apologize for the audio/video sync issues, I have no idea why the video turned out that way. Music: http://www.bensound.com [] Extra pictures coming soon! [] -
NEW YouTube Channel Trailer
DamonMM2000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hey guys, I recently created a new channel trailer upon reaching 100 subscribers and decided to share it here -
LEGO MINDSTORMS : The BEAST
Burf2000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
So, this has been in my garage for a couple of years and was supposed to be a mega segway, sadly LEGO MINDSTORMS motors are not powerful enough however 24 of them will move someone. First working demo of it, 24 NXT motors, 8 NXT's pure overkill -
[MOC] Mindstorms Skittles sorter
laggyluk posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello everyone, it's my first post here :) I wanted to show mindstorms robot I've build a while ago: skittle sorter. As name suggests it can sort skittles by color, very useful! video: -
Hi all For our project "Fully automated train layout" (more information can be found here: https://siouxnetontrack.wordpress.com/), I have designed an automatic train decoupler. A video of the first test run can be seen here: .For our Lego World 2015 layout, we have adapted the decoupler (expecially more speed) but the basics remain the same: The wagon(s) behind the train are pushed away to overcome the magnetic force of the coupler Loco moves forward (this is needed otherwise the magnetic force pulls back the wagon if it is not too heavy like the one in the picture above) Because our train layout is fully automated, Mindstorms is used for the controls. But the same principle can of course be made using a PF motor and PF receiver. Enjoy. /Hans
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[EV3] Blast3r Droid (mySENTIN3L)
DamonMM2000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
This is Daniele Benedettelli’s SENTIN3L…in an extensively upgraded form! I programmed an entirely new program for Blast3rDroid (mySENTIN3L) that enables Remote-Control of the robot! This robot is about 22% quicker than the original! The RC program has two channel modes: Channel 1 for regular usage, and Channel 2 for upgraded usage modified for quicker speed and more accurate turning! The color scheme has been revamped, featuring a lot of bold coloring (most of the black has been replaced with red and white). I added more panels and wider panels for improved aesthetic appearance. The COLOR CUB3 has been revised and now has four colors: black, red, white, and yellow. -
Hi all, I have designed a modular switch drive. The powering can be either by a PF motor, a Mindstorms NXT, a Mindstorms EV3 L motor or Mindstorms EV3 M motor. To overcome the friction of the 'click' in the switch, I have to confess that the switched need to be adapted to remove the 'click'. If you're interested, please let me know (I can send you the LDD file). Best /Hans
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Hi folks, It is one of my earlier builds that I want to share with you: an automatic railway crossing. The LDD sketch: The barriers of the crossing are powered by two medium PF motors. I use two PF receivers: one to control the PF motors of the barriers, and one to control the lights. The two PF lights are crosswise connected to the PF receiver. By this means, I am able to get flashing lights and add sound. All of this above is controlled by a Lego Mindstorms NXT and an Hi-Technic HR link (in case you don't know: with the HR link you can translate Mindstorms commands into PF commands). In the video below you can see and hear the result: In the video below you can see the result in a small train layout. A PC application controls the two trains (both having a Mindstorms NXT + HiTechnic sensor to control the train) and also the Mindstorms NXT that controls the railway crossing. Hope you like it. /Hans
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Data Loss + Power Functions vs. Expansion Set
DamonMM2000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hey guys, I have an update on the data loss I experienced recently. I have lost all my youtube video file archives, several important frames for my upcoming stop-motion animation, all documents of my book I’ve been working on, all videos for a Technic set review, a lot of pictures, and countless more. The bad news being said, I do have some good news (though not outweighing the bad). I am at a fork in the road considering my LEGO collection, and I really need your advice! The 45560 Lego® Mindstorms® Ev3 Expansion Set comes with 853 pieces (i.e. beams, pins, wheels and tires, gears and steering racks, panels, speciality parts). As for the other option, for $96 I can get two IR Receivers (V1), two XL Motors, one PF IR Remote-Control, and onePF Servo Motor. The spare parts included are as follows: four 3 Snap Gearbloks (Element ID: 4610378 / Design ID: 92909), two Cardan Cups with Cross Axle 2M (Element ID: 4610374 / Design ID: 92906), two 16z Gears (Element ID: 4640536 / Design ID: 94925), and six Slide Shoe Round 2×2 (Element ID: 4278412 / Design ID: 54196). Share your experiences, has anything similar ever happened to you guys? Also, which do you suggest I get? Thank you! -
Optimized Lego Mindstorms Models
guandul posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello to everyone. This is my first Topic. I created this page to post optimized versions of the robots from Mindstorms Education and Mindstorms Home. There is a lot of room to improve the robots designed by Lego, especially the ones from the home edition. Basically, most of the improvements can be done by optimizing the software, although I consider that some mechanical advantage can be achieved if we import some of the building technics that fans have developed. Colour Sorter from the Mindstorms Education Core Set. This machine is used to scan objects and the place them in the right place according to their color. When I first built this model I realized that the way it was built was extremely inefficient. The operator has to manually scan every object and then place them in the tray. That was a little disappointing since there is no way to connect this machine to a supply chain. Original model: Then I turned on the machine and things just you kept getting worse. The “sorter” (the part that deal with moving and placing the objects) uses a very obsolete algorithm to know the exact position where a piece should be unload: After unloading a piece, it has to return to the left side so it can star moving to the next unloading position. I ask myself why. Well, because the sorter does not keep track of its movements, so it doesn’t know its location. To correct those problems I rewrote the program aiming for two thing: 1) Making placing and scanning a single movement. 2) Including odometry in the algorithm, so the sorter can know its position by keeping track of its movements. Modified version: I made two changes in the mechanical design: 1) I relocated the sensor so it’s now over the tray 2) I moved the Intelligent Brick 4 studs to the left so I could free the 50cm cable to be use with the now moving sensor. This is the result: Let me know if you want instructions or the ev3 file. Thank You -
[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! -
Fully automated Layout
World_Of_Brick_ posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello, I am woking on plans for a Lego layout of the majority of the Magic Kingdom, in Walt Disney World Florida. I am planning on using the Philips Hue System for lighting so that I can have daytime/nighttime/morning/evening. I also am going to include LifeLites for the lighting of the street and in buildings. A few of the rides will be able to run as well, including the Walt Disney World Railroad which runs around the park. Lastly I am also going to include sounds into different areas of the park to add to the realism. Is there a program where I can make all these systems automated so that by the push of a button or two the entire layout comes to life? -
[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? -
[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 -
