@Riley_Porter_ril3y wowee. Can that video be posted in the 3d printing G+ community please. That is bananas fast.
@Riley_Porter_ril3y hard to tell cause its moving so fast. Are those bushings or linear bearings?
@Eclsnowman I seem to recall that marlin just breaks g2 and g3 arcs up into lots of tiny vectors anyway, so the stuttering is likely due to you maxing out the speed at which the 8bit architecture can handle it. Plus a few other inefficiencies in the way it buffers and processes the code.
@Tim_Rastall sure about the video. However we are not 100% ready to say TinyG is open for 3d printing There are people doing it now however. There are a few issues we are still dealing with.
And about the arcs. Yes this is what it is doing. Breaking into a bunch of little lines. In TinyG we do not. We interpret g2/3 as arcs :). @Eclsnowman there is no way that any reprap controller is going to move this fast. From my knowledge that is. @Jason_Smith is printing at 230 mm/min on his printer. On his rambo2 that is. The coolest thing I am looking forward to is to not need retraction 
if you move so fast you do not need to retract !