Simple Logic Request Thread

I see a lot of people, even otherwise experienced builders, asking for help with simple logic and rail devices. This thread is for those people; if you want me to help you understand how a logic or rail device works, or even just build the whole thing for you then simply post a comment below detailing your issue/request and I'll help you as soon as I can.

Requests will have a download link to their device posted here and they will be notified in a reply to their post.

[SPOILER="Logic...

Simple Logic Request Thread