An ATM is a good idea, what are you planning for the hardware part and manufacturing it? The software side is not too complicated however building and servicing it are much more harder. I can help with electronics and programming.
Good luck with your project, launching an ATM company is a very long and costly road and in the end can be very profitable.
Its funny you said it that way. To me building/creating the ATM physically would be the easy part. The programing and software development would be the hard part. Mind you I have already looked at a lot of BTC ATMs wiring diagrams and also researched into the insides of bank owned. From a engineering aspect there is not much hardware and wiring to an ATM, mind you I have a lot of experience in computer hardware related designs. PM if your interested in joining the future Team. I'm more than confidant I will succeed in developing this product. To me its just matter of time!