bissen21/Marlin_Firmware
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Merge pull request #511 from wolfmanjm/ezdelta

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fix homing for deltas
This commit is contained in:
ErikZalm 2013-06-09 23:45:03 -07:00
commit 58d12aad73
1 changed files with 39 additions and 9 deletions
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44
Marlin/Marlin_main.cpp
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@ -809,8 +809,41 @@ void process_commands()
destination[i] = current_position[i];
}
feedrate = 0.0;
home_all_axis = !((code_seen(axis_codes[0])) || (code_seen(axis_codes[1])) || (code_seen(axis_codes[2])))
|| ((code_seen(axis_codes[0])) && (code_seen(axis_codes[1])) && (code_seen(axis_codes[2])));
#ifdef DELTA
// A delta can only safely home all axis at the same time
// all axis have to home at the same time
// Move all carriages up together until the first endstop is hit.
current_position[X_AXIS] = 0;
current_position[Y_AXIS] = 0;
current_position[Z_AXIS] = 0;
plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]);
destination[X_AXIS] = 3 * Z_MAX_LENGTH;
destination[Y_AXIS] = 3 * Z_MAX_LENGTH;
destination[Z_AXIS] = 3 * Z_MAX_LENGTH;
feedrate = 1.732 * homing_feedrate[X_AXIS];
plan_buffer_line(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], destination[E_AXIS], feedrate/60, active_extruder);
st_synchronize();
endstops_hit_on_purpose();
current_position[X_AXIS] = destination[X_AXIS];
current_position[Y_AXIS] = destination[Y_AXIS];
current_position[Z_AXIS] = destination[Z_AXIS];
// take care of back off and rehome now we are all at the top
HOMEAXIS(X);
HOMEAXIS(Y);
HOMEAXIS(Z);
calculate_delta(current_position);
plan_set_position(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], current_position[E_AXIS]);
#else // NOT DELTA
home_all_axis = !((code_seen(axis_codes[0])) || (code_seen(axis_codes[1])) || (code_seen(axis_codes[2])));
#if Z_HOME_DIR > 0 // If homing away from BED do Z first
if((home_all_axis) || (code_seen(axis_codes[Z_AXIS]))) {
HOMEAXIS(Z);
@ -879,12 +912,9 @@ void process_commands()
current_position[Z_AXIS]=code_value()+add_homeing[2];
}
}
#ifdef DELTA
calculate_delta(current_position);
plan_set_position(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], current_position[E_AXIS]);
#else
plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]);
#endif
#endif // DELTA
#ifdef ENDSTOPS_ONLY_FOR_HOMING
enable_endstops(false);
#endif