Search the Community
Showing results for tags 'gbc'.
Found 191 results
-
[GBC] Hybrid Construction Site Module
LegoGBC posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
After months of building (well, life got in the way) I've finally finished building my biggest, most complex GBC module. It's a hybrid GBC (uses both mechanical and pneumatic functions) of a construction site-like-crane operation. Here's the video. A detailed description of how the crane works is written below The 6 step movement of the crane is done without using any sort of programming and no mechanical timers - it uses 3 differentials (one heavy duty) to power 4 outputs: 1) The crane rotation 2) The crane's claw (a pneumatic switch) 3) The crane's boom (a pneumatic switch) 4) The PF switch used to reverse the motion The 6 step movement: 1) Close the claw 2) Lift 3) Rotate 4) Release 5) Rotate back to original position 6) Lower So how does it work? Differentials send the power to the 'easiest' output. So the first, easiest function is to close the claw (rotating an axle which then changes the position of a pneumatic switch) -to grab the crate The second easiest is to open the boom's pneumatic switch -to lift the crate After that, the crane rotates until it's blocked at it's final position (the drop position). The power is then sent to the PF switch, which reverses the movement: -The claw opens -The crane rotates -The boom lowers Notice how the boom lowers AFTER the crane rotates back to it's original position (while it lifts BEFORE the crane rotates) - this is done so the boom won't lower in the wrong position (where it drops the crate) - a rubber band mounted on the boom's switch makes sure this happens: -It's easier to change the switch to it's lift position than it's to rotate the crane -It's harder to change the switch to it's lower position than it's to rotate the crane back. There are many (really, many) more small mechanisms in this module, but I think it's better to see those in the video :) Thanks for watching! -
Even though I'm there, there are so many great displays, I always miss things, so I'd like to see your photo albums and/or video collections. Flickr/Vimeo/Youtube/etc
-
GBC Module using an EV3 controlled train
bartneck posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
This LEGO great ball contraption consists of a module that sorts the balls by its color and a train module that returns the balls to the start. Both modules use Mindstorms EV3s to control the motors. The train EV3 controls and original LEGO RC Train motor using a DIY cable. Enjoy! -
Finished my second module. Simpler mechanics this time, but I haven't seen this particular variation anywhere.
-
[HELP] Pneumatic GBC Module
9v system posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I have just finished a pneumatic compressor but I need a gbc module that runs on pneumatics Anyone gots some instructions or cad files? -
[GBC] The Swimming Pool
Nalyd997 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello everyone! May I present to you my very first GBC which was built for the Brickvention in Melbourne. I made a short video about it (it is really simple). I had a lot of fun making it and look forward to next year's circuit! And here is a video of the whole contraption: -
[GBC] gbc ball colour
9v system posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
hi guys I want to change the colour of one of my GBC balls so I can track it. what paint should I use? -
[GBC] 9v GBC Modules
9v system posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Here is my latest gbc modules, some were taken out because of problems or missing parts. EVERYTHING is 9v no power functions here at all and it will stay that way http://youtu.be/Zp8itxFNbwY -
[GBC] Dual Lifting Arms
nxtstep101 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
After a hectic summer and fall I have finally found time to build again. I decided to start building a GBC loop, and this is the first module that I came up with. I was slightly inspired by akiyuky's , but the concept is different. I also created building instructions for this module, the only wrong part in LDD is that liftarms holding up the hoppers aren't in place. LDD was being difficult and wouldn't allow me to place the liftarms correctly (even though they fit perfectly on the real module). Anyway, without further ado, here is the video: After Christmas and the New Year I plan on creating more modules, so stay tuned! -
GBC ball counting program
9v system posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
hi all im looking for a ball counting program made with rcx code 2.0 its for a conveyor like this one http://www.brickshelf.com/cgi-bin/gallery.cgi?i=2036337 -
[GBC] Minecraft GBC Module
9v system posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hi all here is my latest gbc if has about 12 modules including one that is based of the micro worl minecraft set. http://youtu.be/enqDTUCo-Ok So what do u guys think should it be made into a set? 9v system -
GBC at Brickvention 2015, Melbourne Australia
Captainowie posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I'm not sure whether to post this here in Technic/Mindstorms/Model Team or in the Events forum. On the one hand, it's clearly an Event, on the other hand, I need the exposure to the Technic community. I'll post it here, but I'll understand if a moderator wants to move it. My name is Owen, and I'm trying to get together a large GBC exhibit at next January's Brickvention in Melbourne, Australia. If you're able to get your modules to Melbourne, and are interested in helping celebrate 10 years of GBC, please email me at captainowie.REMOVETHIS@gmail.ANDTHIS.com, or send me a PM with your email address. Thanks Owen. -
[MOC] GBC video, plus some questions for GBC experts
Captainowie posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I displayed this GBC at an event a few weekends ago in Adelaide, Australia. The engine you see at ~48 seconds is a W16, but you can only see the top 8 cylinders because of the camera angle. Some questions to anyone who has participated in those large group GBCs that you find on YouTube, the ones with a hundred modules. Do they run the whole weekend non-stop? Or periodically (like, for 10 minutes every hour)? Or just once, for half an hour or so once it's all been put together? If it's not "just once", how do you manage modules that might not be quite as reliable as they should be? Or is it just me that has issues with reliability? Conversely, if it's not "non-stop" how do you manage crowd expectations? Is there one person who's in control, and can order a troublesome module to be removed from the Contraption? Or do all the builders need to be there the whole time in case something goes wrong with their module? Again, this is something of a moot point if making reliable modules is easier for everyone else than for me. Owen. -
[Help] Cannot get Akiyukys' pneumatic GBC module to work properly
NoEinstein posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Currently I am trying to build a pneumatic GBC module based on the videos of and .Somehow I keep having issues with a full 180 degrees turn. When not attached to the base, the turntable turns a full 180 degrees (like in the final part of Akiyuky his video). Once attached to the base my grabber does not turn fully, but only about 150-160 degrees. This way my version will not grab new balls but crash horribly due to not being aligned properly. Somehow the pneumatic piston does not push the turntable enough when fully extended. The only way it works ‘properly’ is when I operate the pneumatic pump as a madman so the swing speed turns the grabber fully but it should not have to operate on insane speed as shown in both linked videos. It might be that the module is not properly balanced but I copied most from Akiyuky and analyzed Michael Speelgoeds’ one too and they seem to work fine, although I must admit that the use of all the black pieces make it hard to see every detail so I might have missed something. Another reason might be the friction between the gear rack 1x13 and the outside of the module. As shown in the LDD file I made, there is a lot of free space between the gear rack and the outside of the module (all marked lime green) so I originally had a half bush on the lime green peg with cross axle closest to the grabbing arm so the gear rack would not ‘jump’ over the 16 tooth gear. LDD does not accept a half bush, due to not having enough free space which made me think maybe it gave too much friction. I removed it and pressed the lever 3M tight against the gear rack, but it does not stick so after a while the rack starts to slip on the 16 tooth gear. More importantly the grabber still will not turn a full 180 degrees. I am currently at a complete loss on what I can try next and was hoping someone had some pointers. -
Hello Eurobricks, I'd like to present you with a collaborative build that I made with BrickJunky for Brickworld Chicago. The idea was to present our interpretation of a themed GBC (Great Ball Contraption), though this build does not follow the established standards for a GBC. For those unfamiliar, a Great Ball Contraption is essentially a machine that moves balls from one place to another in creative ways. We were incredibly honored to be nominated for Best Mechanical build at Brickworld and I'd like to thank everyone who came up and talked to us at the event. It was my first Brickworld and I was blown away by the support from everybody! In particular I'd like to thank Steve Hassenplug and everyone from the GBC section for their help and support and we look forward to incorporating a similar build into the actual GBC layout! Be sure to watch the video! Enjoy!
-
Triangular bracing - which orientation
Captainowie posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
One for the structural engineers out there... I am building a structure to support my latest GBC module. I have vertical supports, and a horizontal cross-member. I am using a 12-long brick to form a 6-8-10 triangle to maintain the right angle between the support and the cross-member (thank you Pythagoras!). But which is the best way to do it? In the red version (on the left), the 6 side is horizontal, and the 8 side is vertical. In the blue version, it's the other way around. Which one should I use? Or are they equivalent? Under which circumstances should I use one over the other? In this case, the brace will be under compression (holdling something up). Would the answer be any different if it was under tension (holding something down)? Thanks Owen. P.S. The forces involved are not great, so I'm certain that either one would suffice. I'm just curious about whether one is better than the other. I'd settle for which one is more asthetically pleasing. -
Building instructions available of LEGO GBC 6
PV-Productions posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I'm proud to present that the LEGO GBC Shooter module from GBC 5 has been digitized and ready for download. I also made the building instructions available in PDF format. Here is the file if you want it: http://pv-productions.com/lego-gbc-5/ -
GBC Loop #4 - 5 Modules
LegoGBC posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello I finally finished working on my new GBC loop. It has 5 modules: Pneumatic Tower http://www.eurobrick...35#entry1768940 See-Saw http://www.eurobrick...54#entry1716090 Android GBC Counter (V1.5) http://www.eurobrick...43#entry1684650 Drag & Tilt http://www.eurobrick...topic=85411&hl= Marble Pump V3 (no topic) -It uses 6 M Motors (the pneumatic tower takes 2 as I don't have an XL motor) -There are 30 balls on the track. -The GBC counter app says the amount of balls per second is 1.1. Not much to add... Enjoy the video :) -
GBC Module - Pneumatic Grabber (Single Switch)
LegoGBC posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello! I finally had the time to finish building & filming my new GBC module. It uses a single switch and 2 cylinders. Because the air will always go to the cylinder which job is easier, the movment sequence works perfectly with one switch. 2 PF M motors are used to compress and change the switch's position, (2 because one PF M was too slow and I don't have an XL motor) It was very hard to build the body of the crane as the cylinders try to "escape" from turning the gears. Here's the video. Not very long as I will also show this module on my next GBC loop -
LEGO GBC modules Index
PV-Productions posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I'm proud to present the up to date LEGO GBC modules index. I will continuous keep this index up to date. Also your suggestions are more than welcome. Have fun looking around! Click here to visit the LEGO GBC modules Index -
Building instructions LEGO GBC Pick & Place Robot module available
PV-Productions posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I'm proud to present that the LEGO GBC Pick & Place Robot module from GBC 6 has been digitized and ready for download. Also the NXT program is available on the website. Click here to download the building instructions and the NXT program. Skip to 1:33 to see the Pick and Place Robot working. Click here to support LEGO GBC 6 on LEGO Cuusoo. -
Building instructions LEGO GBC Pick & Place Robot module available
PV-Productions posted a topic in Hello! My name is...
I'm proud to present that the LEGO GBC Pick & Place Robot module from GBC 6 has been digitized and ready for download. Also the NXT program is available on the website. Click here to download the building instructions and the NXT program. Skip to 1:33 to see the Pick and Place Robot working. Click here to support LEGO GBC 6 on LEGO Cuusoo. -
LEGO Blocumentary with Akiyuky
LegoGBC posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I found this new video by LEGO, which contains an interview with Akiyuky as well as some of his modules and a sneak peek to a new module :) It was uploaded about 30 minutes ago - I think you'll enjoy it. -
LEGO GBC 8 + Building Instructions (5 modules - 2 motors)
PV-Productions posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hi there, Click here to download the building instructions on my website! It has been a while since my last GBC. But I have made a new one with new modules in it;) Click here to watch the video on my website with more information etc.: Here's some information about the LEGO GBC 8. To download the building instructions and watch the pictures, please visit my website: http://pv-productions.com/lego-gbc-8/ This time I used over 2000 LEGO pieces. I used 2 XL motors. One for all the modules and one for the airpump. I also used the LEGO NXT to control the LEGO GBC with your smartphone, so you can wireless turn it off and on again. You can also control the GBC with a mechanical switch. I also used the LEGO NXT for measuring data for more details. So now you can see the balls that have passed by, the average amount of balls per second and a clock to see how long the GBC is running. The mechanisms and functions, which I used, do not all have names. So I named them again by function. 1. Stop-go mechanism 1: Stops balls and let them go by at the right time. 2. Sinusoid: Moves the balls by making a sinusoid motion. 3. Stop-go mechanism 2: Stops balls and let them go by at the right time. 4. Elevator: Lifts the balls to a higher level. Every time 3 balls can fit in the cabin. 5. Bridge: Leads the balls of yellow tower to the blue tower. When the elevator(4.) is down the bridge will go up and when the elevator is up the bridge is down. 6. Stop-go mechanism 3: Stops balls and let them go by at the right time. 7. Vertical pushers: Pushes the balls in a vertical way up. 8. Color sensor: takes measurements of the balls. 9. Ball pump: Pumps every time one ball. A new ball takes a place beneath another ball and then pushes them up. 10. Android app: Controls the LEGO GBC Website: http://pv-productions.com/ Facebook: https://www.facebook...206638589482664 Youtube: http://www.youtube.c...op?feature=mhee Support site: http://lego.cuusoo.c...deas/view/51642 -
GBC module : "The Witch"
PG52 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hi everybody, here is my new GBC module, using a particular "In basket" following and improving an idea of Platystick (a Techlug member) : the balls fall out of the basket by its side, no possibility of locking. The six-arms wheel system is already known for a long time. The chassis is optimized, the mechanics very simple : M-motor, 16t-20t, and on the one hand, worm gear-8t for the in-basket, on the other hand worm gear-24t for the 6-arms wheel. The module can be used in a classic GBC circuit just moving a flex axle (the same as the four on the 8285 front racks), then the balls are redirected to the end of the module using the ramp which isn't usend in the video :)
