Building a robot car for carrying objects up to 50# weight

Working on a low profile robotic car that is semispherical that can carry up to 50 # load.(sack of rice or 5 gallon water). It will have sides that can open up like flower petals and the middle portion can telescopically lift up to 30 " or more.
This robot will follow me around and can be programmed to deliver things inside the house, or from garage to the house.

The mechanical portion I had already started working on but the I had no idea yet how to automate this creation.
Would like to solicit some advice from the group 

Kiteman3 years ago

Have a look at these projects for ideas and help:

https://www.instructables.com/tag/type-id/?sort=none&q=robot+butler

caitlinsdad3 years ago

Look into scissor lifts. Don't know what your power requirements will be. Arduino with a motor shield should be able to control and animate your flower petals too. Good luck.

redjant44 (author)  caitlinsdad3 years ago

Thanks for the scissor lift comment. I was thinking of pneumatic or hydraulic cylinder but your idea make it more simple.

Dan