The Automated Injection Device (AID). This machine is designed to limit exposure of health workers to patients and infectious diseases when applying vaccines. 
Driving Question:  If I use an electric mechanism utilizing a motor, will my machine be able to carry out the basic injecting functions without any interaction with the target or the machine itself?

Additional Questions: Will its efficiency be better than the previously built machine powered by pneumatics? Will this machine be compatible and easy to use?  

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