Great Ball Contraption

• Classic Marble Pump This is my LEGO version of the classic marble pump. Inspiration is drawn from several builders. It's nothing special, because I intend it to be part of a larger model. This mechanism is a reliable way...
• GBC Donahue This module was introduced at the GBC Workshop at Brickworld Chicago 2014. It uses less than 250 parts, follows the GBC standard, and is very reliable. What's a GBC? Files to build a GBC similar to...
• Wheel Lift 12x12 This is a Great Ball Contraption module. In action: Building Instructions Instructions in PDF format can be downloaded from Green Ellipsis. Parts Lists Parts by step in text format Parts by...
• Collaboration Read more about Great Ball Contraptions on BrickWiki. Attached is a handout that is suitable to give to the public at GBC exhibitions.
• Train Module by Akiyuki The most friendly view of this is on MOCpages.
• Climate Mitigation Dynamic Wedge Game Progress coal vertical conveyor Plan detail minifigs determine voting rubric build voting mechanism rebuild smoke See Files link, below.