Ramps 1.4 + 4x MK2

Hello,

I'm currently building a 3D printer which is already working and have a build size of about 40x40x40cm
To do it I have used 4x MK2 hot beds that are not working yet.

I need your help to power and wire it. I'm not sur about what to use? Do I need another power supply? (I'm currently using a 10amp 12v power supply for the Ramps 1.4, Arduino mega and drivers).

- How to power it?
- How to mesure the T° as there will be 4 different board?

The printer:


Thanks in advance.
Edouard

 

Thanks you very much for this answer JustinTime. I have bought the aluminium plate, the thermistor and a SSR (Halbleiter-Relais FOTEK SSR-40 DA -380V~/40A~- Solid State Relay Input 3-32V/DC | eBay)
I'm not sur if I can use my current power supply (12v 30A) or if I need to buy a second one (do you have proposition)?

I'm now very satisfy with the calibration and this is the last step before printer beautiful pieces!