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strelly
Just a quick update to my stuttering printing.
I've commented out the full graphics smart controller from Marlin and i'm currently printing via USB with no problems whatsoever. I guess i'll head to the reprap discount forums for some advice.
There is a thread here about adding support for the full graphics controller to Repetier firmware. They concluded that it was a CPU hog, and had to disable all animations and optimize their code to get acceptable performance. The thread also had a criticism of the way that Marlin handled the device at the time. Long story short, a Delta printer needs more CPU power than a Cartesian printer, and combining a GLCD with a Delta printer seems to be pushing the performance envelope for the 16 Mhz CPU.
With that said, my Megatronics 2.0 with the full GLCD and Repetier firmware doesn't exhibit a stuttering problem on my Delta printer, so it may be worth flashing Repetier onto your board to see if it performs any better.....