Automatic "door" opener

Community Projects
1

Hello, i want to make an arduino/automatic opener for a desk “door” here are the images : https://imgur.com/a/uEWIE https://imgur.com/a/uZpH3, i thought about doing it with an pneumatic cylinder but i dont have an air compressor, any ideas how could i use?

2

https://imgur.com/a/uZpH3 here if it didnt worked first time

3

https://imgur.com/a/uZpH3 here if it didnt worked first time