PV-Productions

Build Great Ball Contraptions from existing LEGO sets.

LEGO compatible electronics & accessories.

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Building Instructions

Building Instructions

Explore the wonderful world of Great Ball Contraptions and so much more! Created completely from official LEGO sets!

Electronics for LEGO

Electronics for LEGO

Engineer without limitations!

STEAM Education & Workshops

STEAM Education & Workshops

Learn by Play. Play by Building

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Popular Products

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GBC Balls
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Spirograph Spinner – 42055 Building Instructions
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USB Power Box
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GBC 21 Mine Factory – 42055 Building Instructions
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GBC Funnels
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GBC 36 Crazy Carnival – 42082 Building Instructions
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GBC Starters Pack
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GBC 53 Marble Music Machine – 42146 Building Instructions
Rated 5.00 out of 5
Original price was: €34.95.Current price is: €29.95. Add to cart

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Latest News

Fan Build: GBC 41 Power Pit Mania!

December 16, 2021 December 11, 2021

Bennie te Veluwe from the Netherlands build our GBC 41 Power Pit Mania! Looking great!

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Have you also build one of our models yourself?

Sneak peek GBC 47 Mill Madness #4

December 13, 2021 December 13, 2021

In the 16th Century Girolamo Cardano invented a mechanism for converting a rotary motion into a straigh line motion: the Cardan Gear Mechanism. For our new GBC 47 Mill Madness we took the principles for the Cardan Gear, multiplied it by three and added a little twist! Check out the pictures below to meet our Triple Cardan Gear Lift

: GBC 47 Mill Madness

: GBC 47 Mill Madness