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Hanso

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  1. Hanso
    An article has been posted about the replacement of the Delta crane by a complete new Container Loading system. https://siouxnetontrack.wordpress.com/2020/03/24/delta-crane-will-be-replaced-by-container-loading-station/ Or start with the video first:
  2. Hanso
    Read my last post regarding my GBC layout here:
  3. Hanso
    My third module I am working on, is called "Tower Shoot". Balls entering the tower, are catapulted to the top. This is done by hitting the lever with the green beam. A first prototype has been built and you can view the action on Youtube. Enjoy, Hans
  4. Hanso
    The "Hit and Run" module, upgraded to 4 studs wide. Now able to handle 2 balls per 4 seconds, so 1/2 of the required speed. Will make a second version in the future when I build a closed GBC loop. Enjoy, Hans
  5. Hanso
    Latest video:
  6. Hanso
    New post here: Including a link to my latest video:
  7. Hanso
    The Lego Mindstorms GBC module "Circles" is now finished, as you can see on the video. I am using two EV3 M motors and two EV3 Touch sensors for this module. One motor is used for rotating the buckets, the sensor checks if 1/16 of the circle is made. The second motor/sensor is used for the ball loading, you can see how it works at the beginning of the video (time frame 0:12 - 0:25). The module is now working standalone, still needs to be placed in a larger setting including the "Hit and Run" module. Please let me know what you think and/or like the video. Hans
  8. Hanso
    I have added a ball loading mechanism to my module, you can see it here: While adding and testing the additional loading mechanism, I also increased the speed of the belt. During all these testing (> 2 hours), lots of things went wrong before I got it right. But the belt never cracked. Difficult to do a real duration test because I don't have a closed loop (yet). In this update (version 2.1), the ball loader dispense a ball exactly that it enters the belt, when the bottom flipper is set to its base position. Because of this specific timing and the increased speed, I can now reach 10 balls in 42 seconds. When I have widened the belt to 4 studs (instead of 2) and I clone the belt, I should be able to reach the speed of 1 ball/second. Waiting now for the ordered bricks. Will keep you posted.
  9. Hanso
    Will going to do a test this weekend. Let's see if it holds. Hans
  10. Hanso
    Thanks for the compliment. I have not tested (yet) for several hours, but if there is weak point in my module, it will be the chain. I have ordered some additional parts to increase the width from 2 studs to 4 studs, so I can transport two balls in one run. And then clone the conveyor belt plus a slight increase of the motor speed, so I can transport 4 balls per 4 second. That is to say, if it works ;-) Below you see a rendered impression of the widened version. Will keep you posted.
  11. Hanso
    My latest module (work in progress). Throughput is not high enough, working on that. What do you think of it? Hans
  12. Hanso
    Improved version of the "Hit and Run" GBC module.
  13. Hanso
    Just wondering what you think of my GBC work (in progress) ...
  14. Hanso
    Of course, the balls need to be transported to the dispenser. In the video below, you'll find the work in progress of the 'hit and run' module.
  15. Hanso
    Working on a GBC layout, with all kinds of builds that are controlled by Lego Mindstorms. This is the first part, the Mindstorms GBC Circles. In the video you see the work in progress, don't have enough bricks to finish the build :-). Waiting now for my BL order. Some more Stud.io renders on my Flickr page (click on the photo below):
  16. Hanso
    While programming the startup procedure, I found out that there was too much slack in the drive mechanism. This is due to the 6542b gear; the gear has almost 90 degrees of free rotation within the 6539 driving ring. (6542b gear) (6539 driving ring) This free movement of the gears, resulted in a free movement of +/- 2 centimeters of the chain belt. And that applies for each leg, so sometimes when I moved legs 1 and 2 to a more outer position, the triangle kind of collapsed. So I made another drive, that has still the possibility to easily disconnect the motor from the chain belt in order to move it by hand while programming and testing. This is the new solution, it has almost no slack: Connected state Disconnected state When I finish programming, I will give an new update including a video. -- Hans
  17. Hanso
    Hi Thorsten, You cannot just move one leg without forcing the structure. You will always have to move two legs at least, otherwise one of the other legs will be lifted (and thus breaking the structure). If I could move only one leg at a time, it would be easy to determine its position. But I do have a theory that could work, so please continue reading. I have made a second prototype, as you can see on the LDD renders (more pictures here): How to determine the leg position at startup? Well, here is the idea (assuming that the motor position is directly related to the position of that leg): \ [1] Startup position. No idea where the legs are ... [2] Move the four legs in parallel to the left. One sensor will fire at a certain point. In this example, sensor 1 is triggered. So now we now the (zero) position of leg 1. But we also know, that leg 3 didn't fire earlier and therefore is 'behind' leg 1. [3] Now move all four legs to the other side, sensor 2 is now triggered. So I know now the position of leg 1 (by the number of rotations of motor 1) and of leg 2 (zero position). And that leg 3 is 'behind' leg 1 and that leg 4 is 'behind' leg 2. [4] Now I move the positions of the legs, by rotating the grabber. I know I can do this, because I know that leg 3 and 4 are 'behind' leg 1 and 2. [5] and [6] I can repeat now step 2 and 3 to determine the position of leg 3 and leg 4. I need to program this and see if the practice follows the above theory. Will keep you posted. Regards, Hans
  18. Hanso
    Thanks for the interesting tip. But I think I don't understand it completely. If I am correct, I still don't know where the legs are at startup. And therefore, I don't know which movement I can make.
  19. Hanso
    Thanks! Yes, there is a direct correlation between motor position and leg position. But where are the legs at startup ...? That is the problem that I have. Have some ideas worked out with a very smart colleague of mine, trying to get it to work in the coming holidays. Regards, Hans
  20. Hanso
    Thanks for the compliment. And yes, I am aware of the speed. But first I want the mechanism to work, before I increase the speed. Thinking of a bigger claw as well. But first things first ... Hans
  21. Hanso
    I am planning to create new GBC modules in the coming years. It will be a combination of Lego Mindstorms and Lego Technic. So not mindblowing mechanical constructions like Akiyuki, but constructions that can only work because they are controlled by the intelligent Mindstorms brick. My first module that I am trying to build (still unsure if I can make it work), is based on the Planar Parallel Mechanism that I saw on Youtube: I find it really cool how it moves. And I thought: let's build this, and use the grabber (visible from time frame 1:23) to pick up balls at the left side of the GBC module and bring them to the right side. Here is an LDD sketch from the first prototype: And a small movie of the first test. The green markers are there, to put the prototype in the start position. That's my major issue right now: how do I now where the four legs of the mechanism are? Working on that now, will keep you posted. Suggestions and compliments are welcome ;-). Regards, Hans aka Mindstorms GBC
  22. Hanso
    From moving balls around, to candies going from A to B... Sioux.NET on Track proudly present "The Great Candy Contraption" (GCC). Have a look at our video: Please like the video if you enjoyed watching our layout and how we move the candy. -- Hans
  23. Hanso
    A new video has been uploaded to our Youtube channel. In 2019, lots of new elements have been added to our layout. To name a few: the warehouse, able to store 60 containers with candies, with two independent stacker cranes, the four candy circles, and an updated delivery station. Also brand new is the PC software that connects everything. We have worked hard to get the software working stable and with success. You can see the result in the video. Enjoy the video! -- Hans
  24. Hanso
    On Tuesday October 15, a free GBC workshop is organized for children in the age of 7 to 14 years old. The workshop is organized by Sioux Technologies to promote science and technique for the next generation. Location is Esp 101, Eindhoven (The Netherlands). Two of the models of Philip Verbeek (PV productions) will be used in the workshop. Philip himself will be there as well as trainer. More information can be found here: https://www.sioux.eu/ (please note that the workshop will be available in Dutch only, so is the information at the Sioux website).
  25. Hanso
    BTW: More photos of the Candy Circles can be found here: flickr.com/photos/siouxdotnetontrack
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