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Found 172 results

  1. This lego great ball contraption module uses "forks" attached to a conveyor belt to move the marbles. The forks are just tight enough to hold the marbles while still being loose enough for them to come out easily. Here you can see the unload mechanism:
  2. Hey everyone, Today I present the video for the G-Model of the 42062 Container Yard set. It is a simple tipping ramp mechanism that can be hand cranked (why???) or upgraded with a motor for GBC layout use. Tires are used as counter-weights and as a bumper for the tipping input bin.


    Hello, this is the first GBC that I have ever made. It just has a shooter, which shoots the balls about 10cm high and 7cm far and a basket where the balls should go in. Its powered by the L motor, it has one battery box. It can´t be powered manually because the panels which stretch the shooter need the same speed all the time. Otherwise, the shooter will shoot the balls with different power.
  4. RohanBeckett

    [GBC] Carousel

    GBC Carousel During the last few weeks lead up to Brickvention 2018, in January, I decided to have a quick attempt at building a module I have seen on other GBC videos I take no credit for it's general invention, and I actually can't remember where I saw it.... it's just one of those 'cool ideas' that sticks in your head, and you decide to sit down and recreate it from memory! If I find a video, I will link it.. or if anyone knows who built it first.. please post, so I can credit them! For my version, I decided to use the smaller Lego tracks, from the Indiana Jones minecart.. they are fairly cheap on BL, and work very well, and doesn't take up too much space on the table The main ring is made of fairly basic pieces... always a great chance to use those less popular colours! I was quite happy with the red and yellow - giving it a circus-like feel The inverted slopes are fairly new, and worked very well at helping balls slip down the holes I had a bit of fun with some mixel faces, and eyes on the outer ring, as you can see in the video! The track is supported by a nice sturdy frame.. I can pick the whole thing up in one hand, and it doesn't flex. It is driven by train wheels, at each quarter/axis. With the first prototype, it didn't drive very well, and I needed all 4 corners to be driven. But I was testing with bare track, which is very light. Once I added the bricks/plates, it became heavier, and I only needed 2 driving wheels to operate it.. This simplified the design I needed to make it GBC standard, so a simple input + conveyor was added. If balls happen to drop, as the holes are passing, the large tile/catcher underneath sends them straight through. If they land on the wheel, then they go for a ride, accumulating in a pile, before the holes come around again, and they drop down The input rate is just right, so that not too many balls accumulate to 'overflow', and spill..occasionally balls don't fall down the hole, and they just wait for the next loop. For a bit of fun, I decorated the 'engine' in the middle. Note that I have 2 Motor inputs. This lets me alternate between an XL, and M motor, without having to alter power. I wasn't sure at the time which motor would be best (or what I had spare to use) It turned out to be a very reliable module, and I'm quite proud of how it came out. It's nice that there's no major timings to work out, and I think it's reasonably interesting to watch aaaaand... here's the video! :)
  5. Hello, a few weeks ago I made a molding factory GBC module but it was not very reliable. This new version is much more reliable and uses even less parts. It is made to look like a lego molding machine with the marbles taking the place of the bricks. Free video instructions.
  6. Today I present you with my "G-Model" of the 42049 Mine Loader Set. It is a Layout ready GBC module created entirely out of parts that are found inside the 42049 Mine Loader set. By default it can be hand powered, and it has a recirculation function for stand-alone play. You can upgrade it with a motor and disable the re-circulation and run it with other GBC modules. Having said that, the inbox doesn't meet the GBC standard rule for accepting a batch of 30 balls. I had to rebuild the module 4 times before the final model was realized. The first 3 times were failed lift mechanisms, and the 4th was rebuilding the module mirrored because with the addition of the recirculation ramp, it was too hard to see the mechanism when it was running Left to Right. My favourite part of the module was the success of adding the engine and working piston after I had already completed the module.
  7. Hello. Here is my latest creation: a Legophone. A what ???… The name is inspired by Gaston Lagaffe's Gaffophone, and like him he makes music (but does not destroy anything). More clearly, it is a mechanical xylophone (metalophone for purists). It is quite simple: pins arranged on caterpillars come to turn knob pairs. These release a ball falling on the xylophone. Voila for the operating principle. To be able to play a melody you have to go up the balls as you go, which makes the whole thing look like a gbc. Here are some photos : A general view: The inertia motor on the right of the photo has been removed for the video: too noisy. On the upper plate, there is a small black separator on the right: it is for condemned the last note: On this same plateau there are several small arms that serve to distribute the balls to ensure the feeding of each note. Unfortunately it works well only if there are enough balls, and of course I do not have enough. So I palliate this problem by playing a music that has only 5 notes (it's still limit: it would be necessary that the plate is full at the beginning) The lift system of balls: The lift is in two stages: the wheel makes it possible to recover the balls at the lowest level. Otherwise I would have had to raise all the moc. The screw is made through a pneumatic hose. Note that I did not want to motorize this system, and connect it to the crank Legophone. But between the length of the transmission and the multiplication for the screw, everything became too unstable. A more precise view of the Legophone: The xylophone blades are suspended and rest on the rope (made with my braider). The small yellow flip-flops are used to stop the knobs to prevent several balls being released. The video should be more telling than my explanations: Did you recognize the music?
  8. This Miniloop has a "cup" attached to a lifting arm (the mechanism was inspired by Akiyuki) It can be powered by a motor or a hand crank, it is also very very reliable. I have free instructions here.
  9. I had to disassemble the BWE and before I laid the parts to rest for a while, I create a quick GBC module. It's based on the Particle Accelerator MOCs and uses a wheel to propel a ball up a curved ramp. Since the wheel imparts a lot of backspin on the ball, it sometimes doesn't reach the end of the main track and instead reverses onto a side track exit mechanism. For funsies, I just connected the exit track back to the main track but I could just as well connect it to a different module. That way each ball could go for a couple rides before exiting to the next module. Badly lighted video here:
  10. Great Ball Pit

    [MOC] Small Minecraft GBC

    Hey guys, Here is a small Minecraft GBC Module I made based on the GBCRamps module. Normally I would post my GBC in the Technic forum, but since this is a Minecraft module I thought I would post it here. I've been a Minecraft fan for many years and have played on both PC, Mac, and Console. I plan on making some larger Minecraft GBC modules in the future! Please enjoy the video.
  11. Our big yearly Lego convention here in Melbourne Australia, was on last weekend, and we managed to put on a pretty good GBC layout Thanks to @rasikaa this year for coordinating it! Here are a few videos: My video, on Sunday Saturday: (most modules running - 111) @9v system's Akiyuki-only layout: Everyone else in the team, incl @Captainowie, @Cadder and others did a great job keeping everything running so well... We only had 76 modules last year, and the jump to over 100, especially with so many brand new modules, is a lot of work! I was happy that a couple of new ones of mine (eventually) worked really well.. and I'll probably do a separate post on them all
  12. This lego great ball contraption module is designed to look like a lego molding machine. Their are flashing lights on the top and a screw mechanism to get the marbles back up to the proper height. The flashing lights on the top are powered by this switch (They are a bit hard to see in the video)
  13. So I've seen a couple of vids like this one where a scotch yoke mechanism is used to create a lift module in GBC. Unfortunately, none of the videos include a clear view of the mechanism or an explanation, apart from the brief obvious one. I am looking to understand in-depth how this works, especially what pushes the loaded ball upwards to make the entire column rise. I understand the moving part includes some blocks to prevent the column from falling again, but I'm not getting how it rises in the first place. The movement seems entirely horizontal to me which makes the vertical motion perplexing. I'm sure more experienced GBC builders will think this is obvious but if anyone is able to explain the vertical motion part or model it in LDD, that would be awesome.
  14. Acknowledgements I’ll start this post with two call-outs to Nico71. Firstly, he posted images of his ball counting GBC module (refer to text further below) which provided a substantial foundation on which to base my module design. Secondly, he was gracious in giving me permission to post the building instructions for my module online. I wanted to obtain his approval given my module is, ultimately, a derivation of his original work. Module video and Building related files Firstly, a video of the module and links to the building instructions, parts list and LDraw file. Building instructions: PDF Parts list: BrickStock BSX file LDraw MPD file Context I had a desire to have a ball counting GBC module as part of the GBC display for the upcoming 2017 Auckland Brick Show. The primary features of the module were that it would; be a mechanical device i.e. no electronics in the module have discrete digits to indicate the count preferably rotate all digits in the same direction Development I was aware that Nico71 had built a GBC Ball Counter and had posted both photos and a video of it running. It seemed a sensible place to start so, after studying the photos and video, I reverse engineered the module to help me to understand how it worked. I knew that Nico71’s module was not using discrete positioning for digits but I was also aware of Parax77’s video and building instructions of his Chain Holonomic Drive, which I thought I could use in place of the wheel dials in Nico71’s model. Using the Chain Holonomic Drive however proved to be too unreliable. While I could get it to work reliably with two digits (the ones and tens) I couldn’t get the required reliability for the subsequent three digits. I subsequently discovered another video of a GBC counter by Nicky Fitzgerald and a second video providing more information about the build. I attempted to adapt the counting mechanism to replace the wheel dials but this was unsuccessful. The counting mechanism uses the "Technic, Axle Pin with Friction Ridges Lengthwise" in what appears to be a means to prevent the “hammer” from falling due to gravity. I found the amount of friction when attempting to turn multiple dials concurrently (e.g. 99, 999, …) too great for the upper clutch mechanism. However, Nicky Fitzgerald’s design did point me in the direction of the solution I ended up implementing in my module. Module Design Commonality and Differences The following image uses a coarsely grained colouring to identify the main elements of the module. The input bin is coloured red, the primary ball moving mechanism is coloured black and the counting mechanism grey. The primary ball moving mechanism (black) is pretty much the same mechanism as in Nico71’s original module. There are a couple of minor tweaks but nothing that is too significant. The input bin (red) differs in the following ways; it is larger, the agitator mechanism is different (and driven via the addition of a chain) and it contains a mechanism to restrict the balls to drop into the primary ball moving mechanism one-at-a-time and in time with said mechanism. The counting mechanism (grey) is a “plug compatible” replacement for the original, displaying a discrete count of the number of balls. Next Steps and Additional References I have used this module in test mode. It occasionally seems to spin a dial a bit too far but then the next ball moves the same dial less. I won’t get to use the module “in anger” until late October. In the meantime, if someone else elects to build this module and has any suggestions for improvements to the design, you are more than welcome to post back to this thread. Should someone be interested in exploring more about the counter mechanism built by Nick Fitzgerald, in the last couple of days I came across two related videos. Of course, you could always reverse engineer that module and post the building instructions (although after checking with Nicky). Regards, David
  15. Perpetual motion GBC ??? Found this on YouTube see video between 1m 26s and 2m10s Does this really work or is there a hidden input behind the white background ? Going to see if I can build a technic version but use glass marbles instead of GBC balls which probably too light to turn the big toothed wheel.
  16. I'm completely fascinated by the marble oympics (Marblelympics), Great Ball Contraption (GBC) and Rube Goldberg machines. With 20 copies of this module, one NXT, a lot of chain links and several days trying to make overlays in new editing software, it is finally complete: LEGO GBC marble Race - Round 1: The race turns out to be quite nerve wrecking if you pick the right team before the race. Take a look: The layout is powered by only 2 NXT motors for 19 of the modules and an M-motor for the first separate module. I hope that this layout is also much ore fun to look at than the first, which looked like this: As mentioned, there are building instructions for the main module: I hope you like it :)
  17. sawyer klegr

    Lego GBC Wave Module

    This is a lego great ball contraption wave module that I built, I wanted to build a wave module that looked nice. It is very reliable and never jams. Sorry that the photos are slightly low resolution, I am still learning how to use Eurobricks. Next time they will be better quality.
  18. Hello, this I'm my GBC zig zag module inspired by Akiyuki. This is my first time using eurobricks and I am not quite sure how to use it properly, is this the correct way to post? Any help would be great :-) The module is here.
  19. This is my latest GBC module: A stepper module is nothing new in the GBC world. Most GBC steppers have pistons and work like in a normal piston engine with a crankshaft moving pistons up and down. This design is a bit different from the typical designs in that it uses camshafts instead: There are 9 steps which lift the GBC balls: The driveshaft in the middle can be used to chain multiple modules: This is shown in the video. It also shows how to chain the modules in a gentle curve. Here the slopes on the top can be turned to make sure that balls are directed into the inbox of the following module. In the video you can also see this small circuit made from 10 modules. Two M-motors and one NXT motor power the 10 modules: There are building instructions here: The module is based on this old one which I had at LEGOWorld back in 2011: Up next: I should take a look at the conveyor module... it didn't work too well at the last event.
  20. Greetings all. I've recently been playing with, and teaching myself how to create instruction .PDFs using LPub with the intention of modelling/creating instructions for some of the GBC Modules I have (physically) built, both MOCs and Mods. To start off while learning, I used something that 's quick to build and only uses a small number of parts. So I present Cadder's "Found Ball Bucket". Backstory: This is a little something I knocked together while displaying at Brickvention 2017 and fine-tuned at BrisBricks 2017. Originally it was a 'catcher' that I made for a high module displayed at BV2016, essentially because I had 4 spare Lego Sports arena corner units... but it quickly became more useful. Occasionally at GBC shows, a rogue ball will "escape" and be picked up by young kiddie spectators who will invariably try to reach across the displays with an ever-helpful "'Scuse me mister! I found this!" Rather than risk knocking over or bumping/misaligning the working GBC modules, it became really handy to reply "Awesome! drop it into the blue bucket!" This had the great side-effect that it engaged said kiddies.. and with an added "See if you can make it spin...", makes the GBC display somewhat interactive. It's also versatile enough that it can be placed pretty much anywhere on the GBC circuit and feed found balls back into the circuit without too much disruption. It's deliberately built high enough that the return chute is higher than the 10-brick standard GBC input size. Returned balls should just drop straight into any module's Inbox. I dare say it could be double-purposed for its original use as a catcher - for, for example, a tower drop, shooter or flicker module. So. At first I really wasn't sure where to post this, and although not strictly a GBC module itself, it *IS* a very handy tool (I've subsequently built more than one) for GBC displays that I hope other GBC organisers/displayers might like to adopt. I also intend making a sign to stick on the front, something akin to the "Hey!" logo on the back of the City boxes. (ie, Along the mines of "Hey! Find an escaped GBC ball? Drop it in here!") Instructions in form of PDF file here. Also, because it was modelled in, you can use Bricklink's Step view builder instructions here. (and buy parts) cheers!
  21. As part of Splat's To-and-Fro GBC, the mechanism that provides a means to halt the GBC if there is a jam I found to be particularly interesting. RohanBeckett then posed a challenge (half in jest?) to adapt the mechanism to automatically reverse the GBC for a short period of time and then for it to resume normal behaviour. So I decided to take up the challenge and came up with the following. In the video, my hand simulates the case of a GBC mechanism becoming jammed by holding the output axle. Following the "jam" there is a pause, the output axle momentarily reverses, pauses once more before resuming the original rotational direction. This mechanism is in the experimental stage and there is a minor defect. The defect, as shown in this second video, is that the differential continues to turn a very small amount even when there is no jam. The gearing ratios are correct, so I suspect that the rotation is being caused simply by the rotation of the axle. I'm posting this thread for two reasons; 1) to garner possible solutions to address the defect 2) to see whether anyone else has interest to/is able to improve/alter the mechanism. I'd be open to any suggestions as to how the incidental rotation of the differential could be eliminated. I'd also be open to seeing other peoples' interpretations to make a mechanism to achieve a similar result. For convenience, I have made the build instructions (PDF format) and the LDraw file (MPD format) available for download from BrickSafe. There are also a couple of images of the two sides of the build: Regards, David
  22. Well, I spend a little bit of time experimenting with the tracks from the tracked racer... and I came up with this It works better with marbles but because of purism reasons i did not use marbles Turns out that it works surprisingly well, it has a ramp that allows balls that miss to come out, but it is rare they miss.
  23. It is not long ago I presented a GBC (Great Ball Contraption) starter module. I have now done it again. This time with the wheel design that I have used on both the Easter Bunny Module and the 1984 Module. In the video you can see how I'm testing this module by making a layout using 10 of them. Building instructions can be found here: The parts that shield the exit can be replaced with ramps as seen in the full layout. And as usual the anti-jamming mechanism saves the day: My "GBC pipeline" currently consists of the following: - Update the Bunny module to use this design as it is more compact and can use the NXT-multiplexer (saves me a motor) - Make a gadget for my pump module. - Make a new version of this:
  24. My old red GBC wheel has been repurposed as a hamster wheel. This was only natural since kids kept referring to the hamsterless wheel as a hamster wheel at LEGO World a some years ago (2011). I really liked the module since it captured balls and mysteriously delivered them somewhere else. However. It was not very interesting for the audience because it was difficult to relate to, and hid the balls from view. Kids who were following a ball around the layout would thus lose interest when the ball came to this module. This upgrade should change this! I go through the details of the module in the video, but here are some additional pictures: Here you can see both the mechanism for pushing balls in from the side, the non-geared XL motor and the water bottle. It is quite exhausting to run, so water is necessary: The inbox is completely standard for GBC and this module should fit into a layout just well: A better picture of the Sarie... hamster: She really likes to run :) The old wheel can be seen in this video at 6:46: Here is a picture of the old wheel for comparison:
  25. This is my own design gbc. concept is fixed crank. V1 version Have only 1 plane. So slow. And V2 This is not finish yet. Need make ball suply mechanisem. But, this version have 2 plane so 2x speed than v1. Anyone have tip for ball suply mechanisem?