Video Presentation

Specifications

• LEGO Technic contraption machine using module to move balls
• Powered by a single pneumatic engine (unmodified) and 4-pump handpump
• Gearbox to power only the engine or the engine and the machine
• Two contraption elements to create a marble run
• Oil pump jack with lifting system
• Sliding trolley with automatic tilting bucket
• Minimum of 2 balls to make it works with both modules

You can read the full review of this model on the blogpost.

How to build ?

You only need the parts and the instructions. You can purchase the PDF instructions on this shop which contains the partlist at the end, but you can check on Rebrickable or in the instructions preview below.

Please note that you need to have you own source or air (3 bar / 40psi). You can use :

• 4x pump LEGO like this one
• Use a LEGO compressor according to the specs
• Use a electrical compressor like automotive compressor, industrial or electrical pump, you will need to put the air in the LEGO hose with . You can use a ball needle.
• Use a hand pump with ball needle.

About this product

Instructions preview