DIY : Learn how to make a homemade syringe operated hydraulic excavator using Wooden sheet, syringes and 12 V DC motor. It's also called bulldozer. Let's check it out my new channel - Mr. NK : https://www.youtube.com/channel/UCdUt... Fb Page: https://www.facebook.com/AwesomeCreat... Its Physics working models for science exhibition. Thank you for watching Crazy NK !!!!!!