Wow! Amazing DIY Marble Run Automatic Machine from Cardboard

Wow! Amazing DIY Marble Run Automatic Machine from Cardboard. I hope everyone like this design and idea. Thank you for watching!! Please subscribe to get more interesting videos: https://www.youtube.com/channel/UCNZMEiM-ZMYmEk2CG3mr1_Q?sub_confirmation=1 You Need: - DC motor - 9v battery - BBQ bamboo stick - Cardboard - Plastic gear - Electric wire and battery connector wire - Dc motor speed controller Cardboard Measurement: ==================== (cm = centimeter) 1cm x 27cm = 1 piece 1cm x 40,0cm = 1 piece 2cm x 3,5cm = 1 piece 3cm x 20cm = 1 piece 4cm x 10cm = 1 piece 18cm x 22cm = 1 piece 20cm x 12cm = 1 piece 27cm x 15cm = 1 piece 30cm x 30cm = 2 pieces