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docs: Kinematics.md updates for extruder instantaneous corner velocity 

As of commit 5f5896ad Klipper will perform look-ahead between moves
even if they have significant differences in extruder flow rates.
Update Kinematics.md accordingly.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Kevin O'Connor 2019-11-22 17:04:14 -05:00
parent 00fd6223ed
commit c188aa982f
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@ -92,10 +92,6 @@ desired speed that a 90° corner should have (the "square corner
velocity"), and the junction speeds for other angles are derived from velocity"), and the junction speeds for other angles are derived from
that. that.
Klipper implements look-ahead between moves that have similar extruder
flow rates. Other moves are relatively rare and implementing
look-ahead between them is unnecessary.
Key formula for look-ahead: Key formula for look-ahead:
``` ```
end_velocity^2 = start_velocity^2 + 2*accel*move_distance end_velocity^2 = start_velocity^2 + 2*accel*move_distance