GBC vol.4




Great Ball Contraption from set 42075
Ball Pump Module brings the balls up similar to GBC vol.1
Model is legal with GBC rules so can be use with other GBCs
Recommended number of balls:  around 16

- improved model stability
- new step order
- changed some parts to make model legal with GBC rules

Buy this MOC

Want to buy this MOC to build? You'll need to buy the parts and the building instructions using the tabs below.
Login to hide ads!


Name GBC vol.4
Designer C3technic
Designed 2018
Inventory 493 parts
Theme Technic
Alternate Build of 42075-1 First Responder
Already have some of the parts? Use the Build this MOC page to only show the parts you are missing.
Create an account to change the default filters used.

Waiting for Inventory to load

PDF - Computer Images

Please Log In

Sorry, but you need to be logged in to buy these instructions so that you can download them again at any time. Login or quickly signup using the form below.
Help Guide - BI File Types