PV-Productions
Turn your LEGO® 42112 Concrete Mixer Truck into a mesmerizing Great Ball Contraption!
Discover our GBC 42 Linear Loco Lifters — an incredible alternate build featuring synchronized vertical lift arms, clever gearing, and hypnotic ball movement. Built entirely from parts of the LEGO® 42112 set, this model is perfect for LEGO Technic and GBC fans who love engineering challenges.
What makes it awesome?
🔹 Uses only parts from LEGO® 42112
🔹 Beautiful synchronized lifting motion
🔹 Learn gearing, timing & automation mechanisms
🔹 Hand-powered with optional motor upgrade
🔹 Great for beginners and advanced builders alike
Whether you’re starting your first GBC loop or expanding your collection, this build delivers endless engineering fun. 🧠🛠️
🎥 Watch it come alive and start building today:
Back in 2018, we created the GBC 27 Pinball Madness Machine — an interactive Great Ball Contraption built from the LEGO 42076 Hovercraft set. A full-on pinball experience with moving mechanisms, manual controls, and endless fun.
And we still love seeing it come to life all over the world 🙌
Check out this awesome fan build in action by Rollen and Sage (We Game to Please Workshop, USA) 👇
The energy, the creativity, the gameplay… this is exactly why we build GBCs ❤️
👏 Huge credit to Rollen and Sage for this fantastic build and video!
Want to build your own Pinball Madness machine?
