mechanical mini automatic feeding cutting mechanism pdf file

I need ides about the mechanical mini projects . And needed some topics too. I've compiled a list of few mini project topics in mechanical engineering. Here's a list -

1. Design interface of aircraft / automobile cockpit: Make it easier for human interaction.

2. Study the dynamics of automobile ignition systems: Study the vibration levels of exhaust system and predict design parameters.

3. Robotics : Design and develop a mini line-follower bot.

4. Design a robot for the textile industry using SolidWorks software.