Unresolved First Layer not extruding

I'm running an R1 + with an LCD controller. I've noticed that whenever I print a model, the first layer doesn't extrude. However, subsequent layers come out fine. I'm using a layer height of .25 and the LCD says the z-offset is set to .8 (which I assume means that z will start .8 mm about the bed). This should be plenty of room for the initial .25 layer, however, nothing extrudes on the first layer. How do I calibrate the z-axis start position?

One way I've gotten around this is to use a raft, but that's a wasteful solution. Any help would be appreciated.

 

Does a negative number tell it to go above the bed? It's currently a positive .8

 

thanks. that's probably the issue then. it's trying to go below the bed on the first layer. I'm at work now, but I'll give that a try tonight. thanks again

 

I flashed v2 of the firmware and that seems to have solved the problem.