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Will,
About blending,
currently I am testing the trajectory planner on a
machine to
do plotting with relative high speeds.
Due to the current blending algorithm there are
large errors at
the corners. Without blending the motion is really
not smooth.
( Cad generated pieces of lines).
If it is possible to start blending the next
move not at, but after deceleration has started,
these errors would be much less.
The speed in the corners would slow down, but not
stop, still having relative
smooth motion.
(even better would be a third order profile instead
of the current second order,
but thats for later).
I know that on european NC controllers like
Heidenhain and Philips,
You can specify the distance from the endpoint of a
move where blending is allowed
to start. This distance is specified with a
G-Code.
This would be a great improvement for the
trajectory planner.
My guess is that for a person who understands the
mathematics this
should not be that hard to implement, is
it?
Bert
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