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docs: Note square corner velocity in lookahead description 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Kevin O'Connor 2018-08-03 15:39:59 -04:00
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docs/Kinematics.md
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@ -87,6 +87,10 @@ small junction speed is permitted.
The junction speeds are determined using "approximated centripetal
acceleration". Best
[described by the author](https://onehossshay.wordpress.com/2011/09/24/improving_grbl_cornering_algorithm/).
However, in Klipper, cornering velocities are configured by specifying
the desired speed that a 90° corner should have (the "square corner
velocity"), and the cornering speeds for other angles are derived from
that.
Klipper implements look-ahead between moves that have similar extruder
flow rates. Other moves are relatively rare and implementing