Photo Elephant is new Raspberry Pi based software product that will control your 3d printer via GPIOs. You can get your copy for 75 USD.
Here is the presentation:
they are on Kickstarter now:
https://www.kickstarter.com/projects/photonelephant/photon-elephant-a-real-os-for-your-3d-printer
Photon Elephant homepage: http://photonelephant.com/
Here is the presentation:
they are on Kickstarter now:
https://www.kickstarter.com/projects/photonelephant/photon-elephant-a-real-os-for-your-3d-printer
Photon Elephant homepage: http://photonelephant.com/