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Found 191 results

  1. Below an overview of all my GBC machines with correct links and background information with newest on top. All image thumbnails link to the Youtube video. Green title means the GBC is present in my collection, with red title is demolished and no longer exists. All machines are 100% LEGO and 100% mechanical. If a machine has a building instruction it is for free and linked below the video. About 25 machines survived as I only keep the reliable modules that are suitable for events. When put after each other the length would be about 16 meters. I will be updating this post when I create new machines (or demolish one). Some machines have a dedicated topic on Eurobricks but most of them not. Feel free to comment or ask questions about any module. This Youtube Playlist will show all GBC machine videos. I started eight years ago with building GBC machines when I saw a big circle of machines at LEGO World Utrecht while being an exhibitor myself with a modular squash center and RoscoPC F1 models. After that I started building the more difficult Akiyuki machines, for fun and to learn from them. This would not have been possible without the Akiyuki project thread here on Eurobricks! It wasn't long before I designed my own GBC and actually that first one has been the most successful one to date (Rainbow Wave). Since then I've build over 30 machines and exhibited all of them on several events, mainly LEGO World Utrecht. A highlight was the invitation to show 3 machines to Eva Longoria in a very popular Spanish live TV show called El Hormiguero. Crane Loader Type 2 Re-design and modernization of the Akiyuki Train Loader for the Type 2 train. Many modifications were needed to run the bigger Type 2 train. Drive and timing system replaced by a long gear rack and a clutch switch. Length 99 cm (with three train tracks) 3298 parts Building Instruction Wall Wave A Wave up a Wall. This LEGO Great Ball Contraption has a switch to drive by hand and an option to re-route the balls into the inbox. Length 34 cm 1945 parts Building Instruction Rollercoaster Fully mechanical Rollercoaster with 24 Carts and one Power Functions XL motor. Only Light Bluish Gray tracks were used, tracks gaps to align the tracks correctly are filled with rigid hoses. Length 119 cm 5011 parts Stud.io file created but building instruction not available. Inception Machine with three flipping cubes and steppers create a never ending ball path for four balls. Based on the Penrose Stairs from Yosuke Ikeda. The machine is operated by hand and needs a soft touch to let it work well. Technically not a GBC but the intention was/is there to create one with the same concept. For this version the x45 GBC balls were too light so the 18mm steel balls from Mindstorms were used. It took wo years of trail and error to create this machine. 1707 parts Building Instruction Push Ups Based on the Serpentine by Akassin, runner-up in the Eurobricks TC23 GBC contest. This compact machine has an option to switch to hand crank and has a reroute to the inbox. With this it is possible to run it by hand as a stand alone machine. Length 35 cm 1670 parts Building Instruction Container Transporter V3 'Akiyukification' of the Container Transposer by Geoff. The original Container Transporter by Akiyuki was controlled by a NXT, three motors and three touch sensors. The version from Geoff is 100% mechanical and timed via , a masterpiece in engineering with 136 gears! This 'V3' version lifts these genius mechanics into a GBC frame. Length 97 cm 3686 parts Building Instruction Ferris Wheel Entrant and winner of the TC23 GBC Competition. The wheel is held together by 128 strings and has 63 ball pods. 64 were planned but the strings had too much tension with 64. Currently eight strings have been replaced by axles to make transport in a flat position to events possible. Length 84 cm Building Instruction not available. TC23 entry topic Planetary Lift This is the feed module of the Ferris Wheel but as a stand alone GBC module. It has a straight line mechanism based on the idea of ord and others. The stepper ball feed timing has a fine-adjustment through a differential. Length 37 cm 687 parts Building Instruction Parallel Steppers A mix of my Rainbow Stepper and the Switchback idea by John Sherman. A reliable module suitable to use as a corner module and including a build-in recycle gate. Length 29 cm 1350 parts Building Instruction Rimo Buckets Original design by Rimo Yaona, reverse engineered and build together with NDL-GBC. Main principle is locking the tower turn movement which initiates the bucket turn, after the bucket turn, the tower turn movement is unlocked. Length 76 cm 1796 parts Building Instruction 26011 Mould King Logarithmic Ball Counter Original design by JK Brickworks through a ball clock which is based on the wooden ball clock by Harley Mayenschein. Ball feed idea based on the double Serpent by Fernando Quintara but rebuild to a studless back frame. Every 10th ball on the ramp is passed on to the ramp below. Length 52 cm 881 parts Building Instruction Eurobricks topic 26012 Mould King Shoot the Loop Entry for the 2021 Great Ball Pit height challenge on Discord (runner-up). A rollercoaster GBC attempt to loop at very high speed, only six weeks of (allowed) development time! The rollercoaster cart is loaded with one ball and launched by high speed spinning wheels. The ball is unloaded at the top. All within about one second! Length ? Module has been demolished as it was not reliable enough for events but a great learning moment to may be create another rollercoaster GBC in the future. Building Instruction not available. Staggered Lift Series of ramps that lift to move balls from left to right onto other ramps. Length 43 cm 1541 parts Building Instruction Akiyuki Five Tilted Rings Rings with pods placed under an angle pass on ball to the upper Ring. Blackout version, inbox turned 90 degrees, Lime accents. Length 63 cm 2966 parts Free building instruction not available because original building instruction is sold by Akiyuki under copyright. The Zebra Entry for the 2021 Great Ball Pit Spring Into GBC Contest on Discord (runner-up). In this contest the trapezoid flag (44676) and Technic crank shaft (2853) had to be used, preferably functional. Build in 3 days from stock parts and uses 66 of the mandatory elements in a functional way. This module has been featured by TLG. Length 59 cm Module has been demolished to make room for other modules. Building Instruction not available. Framed Robot Dreams My version of the very attractive Robot Dreams, 1st GBC by JK Brickworks. This version is using normal gears instead of splat gears, has six robots and is build on a frame. Module has been demolished as I unfortunately after many attempts could not get it reliable enough for events. Length 88 cm 3353 parts Building Instruction Mechanical Container Transporter Original design by Akiyuki which is controlled by a Mindstorms NXT, three motors and three touch switches. This version has one XL motor and a mechanical gearbox controlled by gears and clutches only. Length 85 cm Eurobricks topic Module has been demolished as it was not reliable enough for events. A new attempt based on the Container Transposer by Geoff will be ready soon. Building Instruction of this version not available. Tensegrity Based on the Tensegrity concept by JK Brickworks. The balls going down create unbalance in the Tensegrity structure but not enough to let them collapse. Module has been demolished, it was reliable but for events it took up a lot of space and (by design) could not be moved without collapsing of the ramps. Length 92 cm 2156 parts Building Instruction 26006 Mould King Akiyuki Hockey Stick Lift XXL Original design by Akiyuki. This version has almost triple the amount of pass points to get the ball higher for purposes shown in the video. Length 35 cm Free building instruction not available because original building instruction is sold by Akiyuki under copyright. Bling Color Sorter Geneva drive ball feed with manual ball color switch through Power Functions remote and servo motor. Module has been demolished because the ball exit with colored hoses was too cramped and too many balls dropped. Also kids tend to overpush the PF remote, a remote lasted only one event day! Length 76 cm 1964 parts Building Instruction (by 9V System) Akiyuki Peanuts Original design by Akiyuki, changes to the original design are turning the upper part 45 degrees and adding a frame for sturdiness. Length 60 cm Free building instruction not available because original building instruction is sold by Akiyuki under copyright. Turntable Cup to Cup My version of a Cup to Cup module using six 60 teeth turntables. It took a few years to get this module reliable for events. Length 67 cm 1153 parts Building Instruction Eurobricks topic Rainbow Stepper At most GBC events there are many modules with steppers (and belts) as main mechanism. This is my attempt to make an attractive but simple stepper GBC. Length 52 cm 946 parts Building Instruction 26004 Mould King Akiyuki Ball Factory V3 Original design by Akiyuki. Without doubt one of the the most iconic LEGO Great Ball Contraptions which has drawn me into building GBCs. With 15 synchronized components the Ball Factory is also one of the most complex LEGO GBC ever designed. Originally placed on two big baseplates, it was hard to relocate and reliability was a concern with balls dropping into the complex mechanisms causing jams and need for time consuming resynchronizing. This version is an attempt to make it more reliable and easier to relocate. Length 73 cm 4381 parts Building Instruction Centipede Original design by Great Ball Pit making good use of the well known Brick Separator. Length 60 cm Module has been demolished as it was not reliable enough for events. Building Instruction not available. Vertical Train Loader Unit This is a backup module for the Pneumatic Scissor Lift below as LEGO pneumatics are not the most reliable parts in prolonged GBC use. Length 45 cm Building Instruction not available. Pneumatic Scissor Lift Unit with compact Akiyuki train layout Module to lift the balls over the train tracks with pneumatics. Inspired by the Akiyuki train layout but made much compacter to be able to run on events on a single table. Length 70 cm, complete circuit minimum of 280 cm Building Instruction not available, building instruction for the Compressor is available. Rotary Dumper &Train Elevator Original design by Akiyuki, heavily modified with a new timing system by Doug72 and counterweights to save battery and speed up the cycle. My version uses the original and faster lift but with a lock at the bottom to be able to make full use of the counterweights which in turn saves battery power of the train. Length 80 cm (with 1 track) 2640 parts Building Instruction Train Loader Unit Original design by Akiyuki. Modified (more open) version of the train loader working with V2 Akiyuki train system. Length 58 cm (with 1 track) Building Instruction (by Akiyuki). Train Unloader Unit Original design by Akiyuki. Modified version of the train loader working with V2 Akiyuki train system. Length 49 cm (with 1 track) Building Instruction (by Akiyuki). Train Unit V2 (rechargeable) Original design by Akiyuki. Modified version of the train designed around the rechargeable 8878 LiPo battery. 234 parts Building Instruction Roulette 100% LEGO version of a Roulette wheel with full set of 37 numbers (European style). This GBC is a buffer at the start of a full GBC circuit dispensing two balls per two seconds. The spring loaded shooters have been replaced by weights for reliability (see below). Length 80 cm Building Instruction not available. Hammers Feed module for the above Roulette with a vary large Inbox to hold many balls. Weights (part 73090b) are dropped and shoot the balls in the Roulette. Building Instruction not available. Ball Counter 100% mechanical counter based on the 1 to 10 ratio design by Parax77. This module has been featured by TLG. Length 57 cm Module has been demolished after a few events where the counter mechanism jammed repeatedly. Building Instruction not available. Eurobricks Topic Ball Shooter Marble Run V2 Complete re-design to make this module GBC compliant. The balls are launched by a rotating wheel at 3000 rpm. A first version with two spinning wheels (video here) was not reliable enough. Improvement over the V1 after more than 300 hours of running; Elimination of half plate offset in the drive line, one L motor (M motor gone), longer inbox, centered exit and optimized ball gate with return lock at the top. 2362 parts V2 Building Instruction Building Instruction (by Dunes) without the improvements 26002 Mould King (uses flexible hoses) Solaire Original design by Great Ball Pit. The module uses the 40385 skateboard ramps as pathways. Length 30 cm Module has been demolished as it was not reliable enough for events. Building Instruction (by 9V System) Ball Catcher Platform together with the Paternoster and Ball splitter. In de video is a mouse as Ball Catcher. The mouse is controlled by Power Functions. The mouse has been replaced by a motorized Wall·E of set 21303 (not in the video). Future plans are to convert this platform to the robot pathways of the Pixar movie. Length 90 cm Building Instruction not available. Paternoster Designed after the Paternoster in the Pixar Wall·E movie. Length 33 cm 2357 parts Building Instruction (by 9V system) Double Bucket Wheel Having bought two 42055 Excavators for parts to get started with GBC, this module was to see if I could put the buckets to work. It worked. Module has been demolished, basically because it did not get much interest during events and I needed the storage room for other modules. Length 44 cm 999 parts Building Instruction (by 9V System) Ball Shooter Marble Run Original design by Akiyuki. First attempt to transform the Marble Run to a stand alone GBC compliant module with two high speed spinning wheels.. Building Instruction not available (for V2 available). Demolished as it was not reliable enough, especially the ball intake and uncontrollable ball speed at the top. Rainbow Wave My first GBC. Balls are surfing on a wave of 38 Lego colors. This GBC has app. 1150 moving parts! 1988 parts Length 93 cm Building Instruction (first version by Courbet). Eurobricks Topic Akiyuki Invisible Lift Original design by Akiyuki. I have modified this GBC up to a point where it is reliable and transportable enough to take to events. All modifications are listed here on Flickr. After about 7 days of running on event days the Power Functions XL motor breaks down and needs replacing. Where possible the red axles and blue pins were replaced by black ones. Length 68 cm Building Instruction (without my modifications) available in the Akiyuki topic. Akiyuki Ball Factory Original design by Akiyuki. First GBC build for me, for fun and to learn from. It was hard to relocate and got out of sync when balls dropped. Module has been demolished and replaced by my V3 re-design (building instruction available). Building Instruction available in the Akiyuki Topic.
  2. GBC Module - Ball Factory My idea is to build a ball factory. The balls are placed in baskets in pairs, transported a little further by a conveyor belt, and then emptied again. For the baskets, of course, I will also have to build a return track. It's inspired by the Ball Factory from Akiyuki, but I made and will made some major changes, such as using only technic parts, the bigger conveyer and other mechanisms. Here a close-up from the left part: Due to the rotation of the light grey lliftarms and the yellow axles, the baskets will move one position approximately every 1 to 2 seconds. Therefore, the feeding mechanism will also be placed at this point. The feeding mechanism will also be a conveyer belt. After the conveyer belt for baskets follows the emtying mechanism of the baskets: The mechanism will empty the basket to the right due the rotation of the dark bluish gray axle at the right side, the rotation of the yellow axle connector at the left side makes the whole platform tilt forward so that the basket slides away and makes room for the next one. Next thing to do will be the feeding mechanism (a conveyer belt).
  3. further development of my endless ball track to a gbc loop
  4. Philtech's GBC Modules Here I would like to present you my GBC Modules. First of all I want to show you my GBC Module - Slider. GBC Module - Slider (see below) GBC Module - Lifting Rim GBC Module - Slider It has a slider that pushes the balls up an inclined plane. Here a few images: Here you can see the mechanism: The io-file can be found here: https://bricksafe.com/pages/Philtech/gbc-module-slider This MoC at Rebrickable: https://reb.li/m/112266 Thank you for reading and I hope you like it!
  5. Hello guys, In this topic i want to show you the miniature gbc modules. Many of you might know the gbc miniloops built by various people. but these are just a single module in an infinite loop. What about mini gbc's with modules that follow their own standart? I have created one: as you can see all of my modules have shared power inputted into the bottom middle. the desicion to put the connector here was mainly influenced by the fact that you can easily make a crank for a stepper module by using common parts. here is the first batch of modules: first of all the simple and classic ball bin size stepper: next up is a simple stepper module: and finally a sweeper module: here is a scale comparison: to the left is my mini gbc ball bin and to the right is a "regular" ball bin. hope you like my models!
  6. My GBC Loops Here I would like to present you my GBC Loops. Technic GBC Small Technic GBC Mini GBC Loop First of all I want to show you my Technic GBC Loop. Other loops will come later. Technic GBC Loop It has three different ways to transport the balls forward: an arm that lifts the balls, with a separator in front of it (like in my small GBC (I will present it here soon)): a conveyor belt: and three small rotating arms: This MOC is already for a while on Rebrickable. Here is a video: More photos, instructions, parts list, and some 3D files are available here. Thank you for reading! I hope you like it.
  7. Hi everyone! I have a big question. from the 7th of may to the 15th of may (26th of february to the 6th of march was the old date) we will do our next "phaenoBRICKS" exhibition. We, means the "Steineland Harz + Heide" RLUG which is a part of the "Stein Hanse", a big LUG in the Northern Germany. The phaeno (www.phaeno.de) is a very famous science-museum and we are glad und proud to have the possibility to do our LEGO(R)-exhibition in it again. The last one was in the year 2020, one week before the great pandemic had forced us to stop holding exhibitions. It was a great success, over 13K people visited the phaenoBRICKs on it´s playtime. Now I started planing for 2022 and here is the reason I came to you. The phaeno is a museum to do experiments, learn physics, mechanics, chemistry .. and many more. The perfect area to present a nice GBC-project. The last time we only had a small circle with only about 20 GBC-elements. This time I hope to make it larger und bigger. It fits perfect to the phaneo, how you can imagine. I hope .. no it will be great, if it were possible to find and build a community here in this forum that would have the time and desire to carry out this project together with us. I am sure, the phaeno will support you and us, with paying the hotel and getting here for example. The details we can clear up personally later. At first I would be happy to hear from you, we all are very dear and nice AFOLs with familiar atmosphere. We always try to accomodate international guests, last year from France and Austria, next year from Denmark and France again. It would be nice to create a recurring GBC-attraction at the phaenoBRICKS. Greetings from Wolfsburg! llap Olli picture from: https://de.wikipedia.org/wiki/Phæno Von Richard Bartz - Eigenes Werk, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=25934991
  8. This great ball contraption uses a series of gears and pins to grab the balls and lift them. The mechanism is quite reliable, especially for a module that I designed. Would like to have made it run a bit faster as it does not quite run at 1bps, but it should be able to run at that speed if it is run on 9v. (it was only running at 7.2v in the video as the batteries are rechargeable) Photos on Flickr.
  9. Hello everybody, In this topic I'll put the different things I have in progress, (if any of them becomes consistent I'll open its own topic), and this way I won't put unfinished things in the general gbc thread. At the moment I'm experimenting with GBC, with the parts I have (mostly technic). As a sample, a test of Akiyuki's fork to fork mechanism, The truth is that I'm surprised that it manages to move balls. The conclusion for the moment : - recording with the mobile phone, turning the crank at the same time and catching the falling balls is difficult. -I need to register on youtube or instagram or something where I can post videos and not abuse gif files. I will continue with the trial and error to see what comes out. Regards
  10. Built another module using a new mechanism, it has two arms that extend half way through the motion to pick up the ball before lifting it to the next module. It is quite reliable and runs better at slightly higher speeds. Would be cool to have two forks on each side, kind of like a "cup to cup" module, however I did not want to do it as it would be much less reliable. Instructions on Rebrickable. Flicker.
  11. Hi eurobrickers! My name is Vinc, I also use 20100 as nickname, I'm 34 IT ingeneer in health care and live in France. As many 30s AFOL, I played Lego when I was young with system (city now), space and technic sets. I remember two sets of my childhood, ModelTeam #5541 blue ferry and the Technic Front Loader #8459 which was incredible with its air tank pneumatic system ! A long dark age and then passion si growing since 6 years. I'm found of building architecture in the early 1920s, so I have several modular but I don't spend time to MOC in this theme. I mainly build technic and GBC. Before the "covid age", I use to join friends on french exibitions where we have plenty of RC handling equipement or vehicle to carrier fake rocks. Here is a list of my main MOCs (all are full rc with SBrick or Control+): - Compact Forklift - Front loader - Telehandler - Tipper Grab Truck - 2 Hooklift Trucks - Tipper trailer with previous hooklift trucks I often challenge myself in these creations with combined mecanism, as an example with a 4 channels hub I find a way to have 6 to 9 functions On the GBC side my main creation is a writing text GBC (EV3 WRIT3R can be found on Youtube) where I use my IT skills to succeed. Happy to see you in EB topics !
  12. Have you seen or made a cool gbc model? Have you modded an existing one? Feel free to share here.
  13. I rarely post but I check this site and other Lego Technic sites like Sariel's and GBC websites and I am stumped on a way to mechanically make this work. I am trying to use the Lego differential in a way that I have not seen others use it, at least in the searches I have performed. Limitations: Input motor needs to constantly run I would like to do this purely mechanically. Cannot use Mindstorms. Would prefer to not use switches unless necessary. Problem: I am trying to use a Lego differential to power two separate sections of my build. I don't have access to easy pictures so please see the simple diagram below. I have power on one axle and the two other axles will drive separate sections. I would like Section A to run constantly (or could potentially stop when Section B is running). Section B is currently being held up by a ratchet that completely stops the gear from turning until it is released, When released, Section B will run one full revolution then stop again until the ratchet is released again. The ratchet release is not on a pattern. It can be released 20 times in a minute then not released again for an hour. The issue that I am running into is that Section B currently has a higher load than Section A; therefore, when Section B's ratchet is released for the gear to run one full revolution, the load is heavier than Section A and Section B does not move. Solutions I can think of: Make the load on Section A larger than that on Section B so that when the ratchet releases, Section B will be easier to move than Section A and the differential will transfer power to Section B and it will work. I would rather not arbitrarily add to Section A's load unless that is the only way. Otherwise, maybe engage a ratchet on Section A to stop that section completely but then disengage exactly after Section B has completed one revolution and at the same time, stop Section B from running. I would think this is more difficult since at least one Section will need to run at a time so the motor and differential don't break but I could be wrong. I'm currently using the 28-tooth differential with 3 - 12-tooth bevel gears (BL: 62821b) inside a 5x7 technic frame Simple diagram: Section B ----------|---------- Section A -----| Differential |----- Input Motor Any help is appreciated. Thanks.
  14. Here is my Detachable Cable Car / Chairlift / Gondola / Funicular - GBC (great ball contraption) based on Pierre Georges's brilliant design.
  15. This great ball contraption module uses I mechanism that holds the balls until there are 13 in it, then the mechanism gets triggered and it started lifting the balls and dumps them into the next module. It is quite a complex mechanism, it works well, as long as it runs at the same speed you set it up for. As far as reliability, it is quite reliable when it is set up to get triggered by 13 balls, and even more reliable when you are ok with 12 or 13. (if you have not guessed by now, this was built for the Great Ball Pit challenge to build a module that only outputs 13 balls at a time) I don't know how log it can run, I have ran it for about 45 minutes and it has not had any problems, but I would not be surprised if it stopped working after a few hours. Hope you like it, there are more photos on flickr here.
  16. This lego GBC module uses a conveyor built out of technic engine block pieces to lift the balls. It is powered by a lego XL motor and fully meets the GBC standard, infarct it can actually run reliably at almost twice the required speed for the great ball contraption standard, although it runs more reliably at slower speeds. I originally made this module after chatting with some friends about how we all have so many of the engine block pieces that we almost never use any. This is basically a product of trying to use theme in some way. If you would like to build it I have the free instructions and 3D file on Rebrickable, created in BrickLink Studio. If you have any trouble feel free to contact me and I would be glad to help, hope you like the module! :) Photos on Flickr. Don't know what is happening with the Flickr and YouTube links but they are not working, here is the youtube video. https://youtu.be/nr-HMLtBgqU Lets see if this works..... YES! Not sure what was happening before.
  17. Finally finished another one ;) This lego GBC module uses a large Lego technic sprocket on it's side to and lift the balls. It is a reliable module and meets the standard, it can hold over 30 balls in the input bin and runs just over 1 ball per second. The mechanism runs a lot smoother in real life then it look in the video, it also runs a bit better slightly slower. You may notice in the video that sometimes it doesn't pick up the full 6 balls. This could be fixed by changing the agitator design or running it a bit slower so that the balls have more time to roll into the sprocket I did not change the design because it is very reliable like this and still meets the standard. Rebrickable. Flickr.
  18. - Gbc: because Lego can't pretend it doesn't exist - Marble Run: because Lego can't leave it to competitors - Rube Goldberg Contraptions: because The Incredible Machine made of Lego parts would be a natural fit There is a life beyond forklifts and cranes.
  19. Ultrament

    My new GBC module

    Hello everyone! This is my first post, so comment on any questions and request for GBC modules. Just a few days ago, I was on Rebrickable for a little bit, and thought of finding GBC modules. Well, I wasn't very lucky, because the only one I could find was a back-forth style lift. It was made using the First Responder set. I did not even have that set, as my largest Technic set was Street Bike. I decided to get my Street Motorcycle set, and make this:
  20. This lego GBC module uses the lego Mindstorms EV3 to power the module. It uses a robot arm style mechanism to lift the balls from the previous GBC module to the next one. It is quite reliable and has had almost no issues while I have been testing it. It is quite simple and small for a mindstorms GBC module but it is the first thing that I have ever made and programmed with it. (Do you recommend using the EV3 programming app or Python? I know Python quite well but have not tried using it for mindstorms before) I think it turned out ok for my first MOC using mindstorms, hope to make the next one much more interesting :) Instructions. Photos on Flicker.
  21. Good day, I hope that this is not an inappropriate topic for this form. I have been asked to create an introductory course on how to use Legos and technic pieces to build great ball contraptions. I have learned through the school of hard knocks and how to do it. But I was wondering if anyone in this group can help me develop a syllabus or outline on topics to include in a brief course that would assist students and adult fans of Lego get a better comprehension of how to build one. Any thoughts or suggestions would be greatly appreciated? Or if you know of any good resources that I could use as a framework for a program if you could share it with me or provide me the URLs or documents that would also be very helpful and quite appreciated. If you want to send me something my email is dgeehot@gmail.com - Thanks - Daniel
  22. Hello all, I was checking the website from PV Productions for any new models, when I saw that they are now producing USB to Powerfunctions converter. Combined with any powerbank you have or simple usb-charges , this would give easy option to always have power for running GBC etc. Link = https://pv-productions.com/product/usb-power-box/ Has anybody already used this ? Or any experience with similar things ? Thank you for any advise you can give me.
  23. These two lego great ball contraption modules are designed to be simple and reliable so that they can easily be built by new lego gbc builders but still be cool and interesting to watch. I designed these GBC modules to be able to share the power/motor from one module, this means that you can easily power up to about 5-6 great ball contraption modules from one motor. You can also easily use almost any modern lego motor, including Mindstorms and lego powered up motors to power the modules. One of the reasons I built these modules is because I wanted to build some simpler modules that are easy to build. I hope you like it, if you want to build them I have made the Bricklink Studio file, part list and PDF instructions available for free on Rebrickable here: Conveyor || Stepper
  24. I have been working on my largest build ever and have hit a big issue. The 2 sets of frames keep flexing in a way that makes the decks be out of alignment. Any ideas how to fix this. Sadly I can not add a picture not sure why.
  25. Finally got the instructions finished and you can find them here: ( The instructions PDF will take a few seconds before it starts downloading. Be patient, it will get there. No need to click it multiple times. ) http://www.kanatta.com/GBC/CupToCup/ There is a single set of instructions (PDF), but it comes in two versions. The main version, which uses less common pieces, which are more aesthetically pleasing. Then part lists for a version which uses more common pieces and colours. I have included BSX part lists for both versions and BSX part lists which only contain the pieces needed to upgrade the previous version to this one. The previous version, BSX part list etc. can be found here: The instructions will allow you to create the Cup-to-Cup Type 1 module which you see in Akiyuki event videos from 2013 onwards. I don't think I would have been able to do it without the additional photo provided by Akiyuki and obviously, it builds on the work done by @djm and @Blakbird It is not a faithful copy of Akiyuki's module. The differences are: I changed the hopper so balls won't get stuck behind the spiral lift. I left the support used to get the balls from the lift to the first cup unchanged from the very first version. It works fine, so didn't see the need for a change. The offramp has been redesigned to work with this version. Akiyuki dispensed with the offramp in 2013, using a separate module to do it. The original offramp doesn't work with this version. I tried to keep it similar. Feel free to rework it though. There are some minor changes to the spiral lift to make it work better. It has been good to get this done, as I never liked the motion of original design. Having the motor so far from the cup-to-cup mechanism meant that it wasn't as smooth as you might like. Which is why I think Akiyuki changed it. It is called v1.2 since I class the original grey version as being v1.0 and the yellow version as being v1.1. v1.2 denotes the change in drive mechanism. This has not been event tested. I would advise testing/modifying as required before using at an event over a prolonged period of time.