The PERFECT GBC to get started! GBC 18 – 42064 C Model Building Instructions are now available! 4 clever modules work beautiful together in circular setup so the ball flow never ends. Learn about Mechanics, Gearing, Physics, constructions and so much more. Get the building instructions today at: https://pv-productions.com/product/lego-gbc-18-4-modules-42064-building-instructions/
Fan GBC 16 gearbox upgrade
Master Builder Lance Shuler (USA) made a sweet gearbox upgrade to our 42042 C model GBC 16 which he demonstrates in his video. Awesome work Lance! Get yours today at https://pv-productions.com/product/lego-gbc-16-inverse-belt-lift-module-42042-building-instructions/
Also check out his photo page: http://imgur.com/a/s3DRZ