default_feed_rate 4000 Default rate for G1/G2/G3 moves in millimetres/minute. This is overrided by the first F ( feedrate ) parameter after reset, and never used again.
default_seek_rate 4000 Default rate for G0 moves in millimetres/minute
mm_per_arc_segment 0.5 Arcs are cut into segments ( lines ), this is the length for those segments. Smaller values mean more resolution, higher values mean faster computation
mm_per_line_segment 5 Lines can be cut into segments ( generally not useful with cartesian coordinates robots ), this sets the maximum length of any given segment. Segments longer than this will be cut into several segments.
delta_segments_per_second 100 Instead of cutting lines into segment based on a distance, cut them based on time : segments will be cut so that Smoothie executes -about- delta_segments_per_second segments each second. This is mostly useful when using linear_delta arm solutions.
planner_queue_size 32 Defines how many blocks ( line segments ) are stored in RAM for look-ahead acceleration calculation. Do not change this unless you know exactly what you are doing !
acceleration 3000 Acceleration in millimetres/second/second. Higher values make your machine faster and shakier, lower values make your machine slower and sturdier. This is generally proportional to the weight of the tool you are trying to move.
z_acceleration 500 Acceleration for Z only moves, same as acceleration but for movements of the Z axis. Do not set this value if you use a delta arm solution.
acceleration_ticks_per_second 1000 Number of times per second the speed is updated. Do not modify unless you know exactly what you are doing !
junction_deviation 0.05 Similar to the old "max_jerk", in millimeters. Defines how much the machine slows down when decelerating proportional to the vector angle of change of direction. See here and here. Lower values mean being more careful, higher values means being faster and have more jerk
z_junction_deviation 0 Junction deviation for Z only moves, -1 uses junction_deviation, 0 disables junction_deviation on z moves. Do not set this value if you use a delta arm solution.
minimum_planner_speed 0 Sets the minimum planner speed in millimetres/sec. This is the lowest speed the planner will ever set a move to. Not generally useful.
microseconds_per_step_pulse 1 Duration of step pulses to the stepper motor drivers, in microseconds
base_stepping_frequency 100000 Base frequency for stepping, higher values gives smoother movement. Do not modify unless you know exactly what you are doing, 100khz is the only officially supported value.