Hi, this is my first post so I hope it is in the right place. I blew the voltage regulatoe on my P802's Melzi board and it was suggested I use a RAMPS setup as a replament. I decided to fit dual extruders. So, I bought an Arduino Mega, Ramps, 6 motor drivers and a DIV268BN as the vendor said RAMPS does not support 2 z drives and it was his reommened driver as it would supply the higher current needed for the 2 Z steppers. Once the parts had arrived I immediately spotted 2 sets of pins for the z axis stepper. What should I do? It seems to me that I din't need the big driver unit, nor am I sure how to wire it up. I am planning on putting it together with the two on board z outputs and leaving the existing extruder. One it is up and running I will then fit the dual extruders. Do I install the firmware before conneting everything up or after, and where is the best place to look for the latest firmware?
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