Variable Speed Geneva Disk, a GBC (Great Ball Contraption) by Takanori Hashimoto
Takanori Hashimoto GBC modules are always relying on remarkeable mechanisms. And his last creation, "Variable Speed Geneva Drive" is no exception to the rule!
This awesome marble run machine is composed of two main sections.
The first section is an entry ramp on which is mounted a spiral lift. Inspired from Akiyuki Spiral lift, the mechanism from this section is bring the GBC basketball and soccer balls to the top of the GBC module.
The second section is the most sophisticated part of this amazing ball machine: a Geneva Drive mechanism slides a tray from left to right in jerky movements. An inclined ramp is attached to the sliding tray: this ramp allows the GBC bales to slide to an exit ramp which inclines when the tray reaches the far right of the GBC module.
This Great Ball Contraption is really cool to watch!!
You can now reproduce it at home thanks to ready-to-build sets available on BuildaMOC.
Includes the motor needed to make it motorized.
It's easy:
We only use original LEGO® bricks.
The designer of this MOC will receive (at least) 10% of the total sale price.
Some of our MOCs are not ready packed, they are picked & packed after purchase. Please allow 5-25 working days for us to send your MOC, depending on whether the kit has to be assembled by hand.
All of our MOCs include the original digital instructions from the designers. They will be emailed to you when shipped.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Every part needed for the build, bagged, plus the designer's instructions — printed or digital depending on the kit.
How long until it ships?
Most kits are picked to order: 5-25 working days to gather parts, print and pack (longer when the kit has to be assembled by hand), plus shipping time. Kits marked "Ready to ship" go out faster.
Do you use original LEGO® parts?
Only. From quality to ethics, no other brand gives the same result — we use 100% original elements.
Does the designer get paid?
Yes — at least 10% of the sale price goes to the designer of the MOC, on every kit sold.
Do you ship internationally?
Yes, worldwide. Parts are separated in bags and boxed so nothing shifts or gets wet in transit.
For companies
Want a custom brick kit based on your product, building or brand?
We build custom branded kits for events, gifts and launches — same sourcing and packing operation behind this catalogue.