GBC General Discussion

[ALittleSlow]

any instuctions for some gbc modules available? im out of ideas

There are some examples here, categorized by mechanism:

http://brickwiki.info/wiki/Category:Great_ball_contraption

[ALittleSlow]

White, unpainted balls are available on LUGBULK this year. The price is not yet available, at least in the US.

[9v system]

There are some examples here, categorized by mechanism:

http://brickwiki.info/wiki/Category:Great_ball_contraption

Thanks could you ask Steve if he can provide the Leo cad file for this module? I want to build it

http://www.brickshelf.com/cgi-bin/gallery.cgi?i=1732084

[ALittleSlow]

Also, there are 19 more GBCs (currently) in my

plus some tutorials in my

(in case you want to add them to the wiki)

I've enjoyed (and subscribed, I believe) to your playlist. Because BrickWiki isn't a MOC site, I don't think I should try to create an exhaustive GBC Index there. I have been slowly adding exemplars, however. I could use help adding more or at least identifying the good examples. I think the good examples are those that are original, well-executed, and/or well-documented. Still I think it would be better if there were a place we could collaboratively build (and maintain) a GBC index. Maybe even as a theme, category or tag under some existing MOC bin?

[ALittleSlow]

There might be videos on youtube from that same event.

It is from the Crate Contraption by Gustav Jansson, David Schilling and Patrik.

video:

more images: http://www.brickshelf.com/cgi-bin/gallery.cgi?f=277534

There's an E-mail for Gustav at the end of the video.

[hassenplug]

I need to catch up with this thread. But, for now, here's a link to the mlcad file for the GBCube

http://teamhassenplug.org/GBC/GBCube.mpd

Thanks

Steve

[9v system]

I need to catch up with this thread. But, for now, here's a link to the mlcad file for the GBCube

http://teamhassenplug.org/GBC/GBCube.mpd

Thanks

Steve

it comes up with lots of code? it that ment to happen?

[DrJB]

You need to save that file, then open it in a program that can read it e.g., LDraw

[9v system]

looking at the servo motor topic go me thinking what if the servo motor can be used to sort GBC balls?. it seems logical to use it as the sorter motor.

any ideas?

9v system

[DrJB]

Akiyuki did something similar but he used an NXT brick. Now, what u're thinking (I'm guessing) is to push the motor left or right depending on whether the ball is soccer/basketball. But then, what do you use to detect the ball color? Surely some sort of light sensor and thus the NXT/EV3 seems unavoidable (back to Akiyuki)

Edited January 1, 2015 by DrJB

[9v system]

I need to catch up with this thread. But, for now, here's a link to the mlcad file for the GBCube

http://teamhassenplug.org/GBC/GBCube.mpd

Thanks

Steve

Thanks do you have any more mpd files of gbc modules?

[9v system]

Akiyuki did something similar but he used an NXT brick. Now, what u're thinking (I'm guessing) is to push the motor left or right depending on whether the ball is soccer/baseball. But then, what do you use to detect the ball color? Surely some sort of light sensor and thus the NXT/EV3 seems unavoidable (back to Akiyuki)

yes I want to use the servo to push the ball left all right depending on the color.

[Jim]

Merging with the General GBC Discussion

http://www.eurobricks.com/forum/index.php?showtopic=88296

[ALittleSlow]

My version of a classic. It's not special, but there are complete instructions. Enjoy.

http://mocpages.com/moc.php/402738

Edited December 20, 2014 by ALittleSlow

[9v system]

My version of a classic. It's not special, but there are complete instructions. Enjoy.

http://mocpages.com/moc.php/402738

Nice may I ask does it jam?

[pcfw]

Related to Lego, I have found that it stands for Great Ball Contraptions. I tried google "define gbc lego" but only found lots MOC (My Own Creation) but what differentiate them from other Lego contraptions?

Apologies if my question is too basic but I am now only starting to get serious with Lego, especially Wedo and later Mindstorms.

[pcfw]

Found this:

with little robots chasing after a ball. So GBC is anything that involves a ball?

If so, then the

Motion sensor application in modified goalkeeper robotic game

can qualify as a GBC?

[PROlego]

In that video GBC goes from 3:08 to the end. The "football game" at the start is called Techball.

A GBC (Great Ball Contraption) is a group of machines (modules) designed to pick the balls and take them to the next machine in a complicated way. All the modules form a circle so the balls return to the start.

This is an example of a very large GBC:

All the modules follow some rules to be compatible but you can make them as simple or complicated as you want. It's a callenge for builders since balls phisics are not as predictable as they seem to be and they have to be running for hours without getting balls stuck anywhere in the module.

Sorry for my poor English if there's something you don't understand I can try to explain you.

EDIT: This is the GBC General Discussion topic: http://www.eurobricks.com/forum/index.php?showtopic=88296

Edited December 26, 2014 by PROlego

[pcfw]

Who first start using GBC and how did it become widely used?

Forgot to thank you, excuse my bad manners.

Your English is perfect. I have no problem understand you.

[PROlego]

"We discovered this brand new interest area from fellow AFOLs who motivated a lot of people to get into this new realm of insanity at Brickfest 2005. Shows are usually done for public display of these creations that both the fans and hobbists love to watch."

Source: http://www.greatballcontraption.com/

Edited December 26, 2014 by PROlego

[Captainowie]

See also http://www.teamhassenplug.org/GBC/ for the original specification. A GBC module would be ideal for someone interested in Mindstorms or Wedo and wants to do more than just vehicles.

Owen.

[DrJB]

Who first start using GBC and how did it become widely used?

GBCs have been labeled/categorized as Rube-Goldberd machines. From what I read, the phenomenon started in the US, but quickly spread worldwide, and now there are large GBC display areas at every major Lego 'convention'. Perhaps the earliest original/published designs were by philo (www.philohome.com), who soon after publication of the 'standard', designed several modules, and hobbyists have since then copied/modified/adapted them. Certainly the most original/prolific GBCs we owe today to a young man from Japan (Akiyuki). Check the links below, and you can find many more on youtube. A word of caution in closing: GBCs tend to be rather addictive ... so tread with caution.

http://www.philohome.com/gbc/gbc.htm

Edited January 1, 2015 by DrJB

[Lakop]

I'd like to know where to get those balls from? Amazon?

H

[m0dulo]

I'd like to know where to get those balls from? Amazon?

H

Bricklink. Get your credit card ready. I think these are the correct products. Double check the official specs to be sure before you buy, though.

Soccer/Football/Futbol Ball

Basketball

(I'm not seriously suggesting you do this, but if you want the originals you have limited options.)

Edited December 27, 2014 by m0dulo

[DrJB]

I'd like to know where to get those balls from? Amazon?

H

I vaguely recall someone got similar sized balls from China for fairly cheap. There is a thread on this somewhere on this forum. I'll never pay $1 a piece for such balls.