Hanso
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Everything posted by Hanso
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The candy crane has been improved and changes, photo's can be found on our Flickr page. Improvements: The power chain of the hoist was based on the track elements 57518. For the hoist this worked fine, but the concept didn't work for the crane body. I designed another power chain as you can read in the forum thread. This same design is now used for the hoist. This design is much more elegant than the previous one. The touch sensors at the crane body are used to check if the crane reaches the end of the track. The old position was that low, that the red button just touched the base plate. When the crane moves, you heard a ticking sound. By moving the sensors one up, this problem is solved. Of course, the stops at the end are heightened as well with 2/3 brick. Changes: In the 2015 layout, the train drove backwards until it reached the bumpers. A major advantage was that the train position was always the same (give or take a centimeter). In the 2016 layout, the train needs to stop within a range of a couple of centimeters (we need to figure out how, we have some ideas about that). But still, the crane needs to know where the wagons are positioned. In order to do that, the train will have at the end a wagon that the train can use to determine the train location. A ultrasonic sensor is used to locate this wagon. From that point, the crane can be locating the other wagons just by moving a specific amount of rotations. Enjoy! /Hans -
A new video has been uploaded to our Youtube channel about the candy crane version 2016: Improved grabber More robust look Power chains Click on the photo below to watch the video: Enjoy, Hans
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And see what a simple gear acceleration can do: /Hans
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For Lego World 2016, we have planned to pickup and hand over the candy tickets using a vacuum grabber. In this video you see a working proof of concept. It show that the principle works already with one pneumatic pump to create the vacuum. We have now ordered more parts to triple this grabber to create more vacuum. More photo's can be found here, the video is on our channel.More information about the technique behind this vacuum grabber, can be found on our blog: siouxnetontrack.wordpress.com. Enjoy. /Hans
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You're right. In black & tan it looks better. /Hans
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Josef Hartwig designed in 1924 the Bauhaus chess set. I made a replica. Only in LDD yet, but I want also to make a real build, but I need to check if all the needed pieces are available in these colors (tan and dark bluish gray). Please let me know what you think of it. Enjoy, Hans
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The crane has been updated for Lego World 2016, see the image below. More information about the Power Chain System and the details of the hoist positioning can be found at our blog: siouxnetontrack.wordpress.com. /Hans
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The power chain system has been redesigned to make it more 'lightweight', see the following LDD sketch and photo of the proof of concept. The needed bricks are in back order. More information about designing the power chain system can be found at our blog: siouxnetontrack.wordpress.com. Enjoy,Hans
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Final version of the Candy Crane, including the two power chain systems. More photo's can be found here: https://flic.kr/s/aHskosXQhM . Enjoy, Hans
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Sioux.NET on Track is a group of enthusiastic colleagues who come together after working hours to get experience with Microsoft.NET. To make learning fun, we develop an application in C# for making a full automated Lego train, using Lego Mindstorms and Lego Power functions. The layout is always shown at Lego World in the Netherlands. Our plans for 2016 have been published at our blog: siouxnetontrack.wordpress.com as well as an article about the new updated crane positioning. You can also view a video at our Youtube channel about the power chain systems: Enjoy, Hans
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Thanks for the compliment. At Lego World, the Delivery station was most popular. Especially the fact that the train is tilted. One of the visiting kids said "that's not a nice way to get out of a train" . /Hans
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Sorry, didn't read the regulation in detail. Of course, I understand that my entry will not be entering the competition due to this rule. /Hans
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My submission for the crane contest: the candy crane. The candy crane has been inspired on a harbor container crane. The name points to its functionality: picking up candy and drop it in a wagon (it is part of a fully automated train layout, see siouxnetontrack.wordpress.com). The crane uses 5x EV3 M motors: 2 motors to move the body (X-movement) 1 motor for the Y-movement 1 motor for the Z-movement 1 motor for opening/closing the grabber Next to that, 6 sensors are used for the positioning: 2 touch sensors at the base 1 color sensor for the Y-movement (5 stopping places) 1 color sensor for the Z-movement (3 stopping places) 2 touch sensors to stop the hoist at the end positions Two EV3's (one to control the base, one to control the hoist). Using the EV3 daisy chain functionality, the crane can be controlled as one construction. It get's its input from a PC application, but it is easy to rewrite the software that it can be controlled by another EV3 brick. Images can be found at https://flic.kr/s/aHsjZ6uZix and a video at ./Hans
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(Disqualified)
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The video with an impression of our layout at Lego World 2015: https://www.youtube....?v=D0Cwa5DUJMo. Enjoy, Hans
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More photo's of our layout at Lego World 2015 can be found at our Flickr page: https://flic.kr/s/aHsknSUMiJ. A Youtube video will be released soon. Enjoy. /Hans
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Two reasons: I don't have the big gear, so that make it quite difficult to use it But ok, I could have bought them. The main reason is that the big gears are more difficult to connect with the track and the rest of the system. Of course I will share a video of the complete systems and (hopefully) see all the smiles on the children faces (and maybe some parents too). /Hans
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At our Youtube channel, you'll find a video of our fully automated train layout. It will be displayed on Lego World Utrecht 2015 from October 25 (Sunday) until October 27 (Tuesday). The video shows the layout in our test room. The train layout contains eight EV3 bricks and one NXT brick to control all the Lego objects. The layout is controlled by a PC application (Microsoft.NET) that has been written by our team. Enjoy the video and maybe we'll meet in Utrecht. /Hans
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Wow, amazing. That's a lot of Lego you got there. And the result is great, love it. Cheers. /Hans
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New video added at Youtube. Please let me know what you think. /Hans
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Some new photo's have been added to our Flickr page (https://flic.kr/s/aHsk8h6MAc). As can be seen on the photo's, the EV3 motors have been replaced by the much smaller PF medium motors. They have been built in into the track, saving much space on the inside. Because they are less powerful, I used six of them. The design is now much nicer. I am now busy with adding the color sensor and the stop mechanism (only the right color is allowed to enter the turntable). That is again a nice challenge to design. Enjoy. /Hans
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New pictures have been added to the Flickr page: https://flic.kr/s/aHsk8h6MAc . Enjoy, Hans
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Most people that I have shown the prototype so far, have the same questions: why using two gears how can these two gears turn in the opposite direction on the same axle And that was exactly what I intended when I designed the double row of gears . /Hans
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There is not a particular technical reason to use the double rows. There is a however a reason that I use the 16T instead of the 8T (as used in the solution of ssugawara1955): for the original version, I bought a large number of 16T gears. And I found the double row good looking, especially since you see the gears at each axe turning in the opposite direction. If you see it the first time, you wonder how its works. I hope that the visitors at Lego World will also be surprised by the technique behind this conveyor belt. In the past weekend I have managed to create the turning table, see our Flickr page for photos: https://flic.kr/s/aHsk8h6MAc. Enjoy. /Hans
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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