I am with Autodrop3d. We have a cloud based 3d print queue that might be useful to you.

[mmiscool]

Hey.
I am with autodrop3d and we have a web based print queue system that slices models and allows you to monetize your printer by making it public. It was designed specifically for printers with automatic ejection capability. We have our own ejectors but the platform is open to any one. It handles the credit card billing and uses a simple to set up raspbery pi image to get you working fast.

Reach out to me on here or hit me up on twitter @mmiscool if you are interested at all. We started doing it our maker space and it really expanded the number of people who could use the machine and made it easy to print from home.