Hi,

You have these tunings:

X axis 160 steps per and 3200 mm/min

Y axis 160 steps per and 3200 mm/min

Z axis 320 steps per and 1600 mm/min

A axis 160 per degree and 3200 degree/min

Note the A axis seems pretty slow, 3200 degrees per minute, or 8.888 revs/min or only 53.33 degrees/sec

Thus if you had a move in X and Y of 200 mm each combined with a rotation of 10 turns:

G0 X200 Y200 A3600

If we ignore the acceleration phase the move would take 3600/3200= 1.125 min to run. The linear axes appear to run slow

but it is because they have to slow down to stay in sync with the A axis.

It gets worse if you do a G1 move:

G1 X200 Y200 A3600 F300

Now, again ignoring the acceleration phase, would take 3600/300=12 minutes to run! This is because the machine

moves at the rate determined by the slowest axis, in this case A axis. The linear axes appear to move only 16.66mm/min.

This effect is exacerbated when you use inch units but it all stems from the fact that the rotary axis is slow and therefore

the linear axes must go very slow to stay in coordination with it.

Craig