The joys of a 3D extruder, 23

Howdy;
so, in trying to print larger objects in reasonable times,
I have attempted accelerations of 80mm/s^2.
This, however, reveals operator error -
the tuning may not be 100%perfect;
the extrusion is in dobs instead of a stream, so it's either a thin film white-black,
or else, the dobs are higher than the layer-height, and collide with the hotend nozzle, which
in turn,
DESTROYS YOUR PRINT,
because the rest of the print becomes pulled by the dobs that catch on the nozzle, which clogs the nozzle and
DESTROYS YOUR PRINT (repeatedly, after full strip and clean.


Smaller objects and precision objects are more forgiving;
this is different. It prints TERRIBLY.
Even with a 1.75mm filament and 1.75mm hotend,
or 1.75mm in a 3mm hotend,
or a 1.75mm filament in a 0.3mm hotend.

no matter the specs, it still happens -
dob not a stream,
dob hit nozzle,
nozzle tears mesh
(you are tearing me apart, nozzle!)

The infuriating thing?
it's printed successfully with the configuration, twice in the last hour!
I only need it to print this thing 6 times...

and I feel the answer's staring me in the face...
and I know its not the k8200s fault; its got to be operator stupidness.
80mm is, I'm told, slow by many standards.
And, the machine has been tuned by pros 3 times...
It's just not feeding correctly - too little if any extrusion, then, too much that blurts out in dobs...

I'll get there, and hopefully sort it
then I'll be able to reliably bring some awesome to market in a decent time.