#344 Acceleration constraint violation

[skunkwork]

Running master.

Constraint violation. When running this config

http://electronicsam.com/images/KandT/testing/circblendlatest/

and this progrom (also in that directory LHchips3error.ngc)

The config is set to 30in/sec^2 and it exceeds it.

G21 G64
S6000 M4
G0 X74.845 Y114.166
Z5.0 G43 H00 M8
Z0.175 F9991200.0
G1 Z-3.0 F999500.0
Y113.665 F9991200.0
G17 G3 X75.034 Y113.128 I1.058 J0.071
X75.554 Y112.527 I2.483 J1.622
G2 X81.269 Y106.473 I-35.733 J-39.453
G0 Z5.0
X74.984 Y113.236
Z0.175
G1 Z-3.0 F999500.0
X74.845 Y113.163 F9991200.0
X70.744 Y113.161
G3 X70.584 Y112.58 I0.039 J-0.323
G2 X77.682 Y105.815 I-32.422 J-41.125
X81.269 Y101.185 I-41.212 J-35.626
G0 Z5.0
m2

[skunkwork]

here is another short program that show a constraint violation with the above config.

G20 G64
(Run with parabolic blends)
G0 X0 Y0 Z0
G1 X1 F999
G3 X1 Y0 J.01
G1 X2
M2