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Do sanity checking on LRFB values

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- Setting boundaries based on configured limits, contrasting with G28
(which forgets these limits?)
2.0.x
Scott Lahteine 10 years ago
parent 7f8ea7105f
commit 32744d41a9
2 changed files with 56 additions and 15 deletions
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6
Marlin/Configuration.h
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@ -428,9 +428,9 @@ const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of
// these are the offsets to the probe relative to the extruder tip (Hotend - Probe)
// X and Y offsets must be integers
#define X_PROBE_OFFSET_FROM_EXTRUDER -25
#define Y_PROBE_OFFSET_FROM_EXTRUDER -29
#define Z_PROBE_OFFSET_FROM_EXTRUDER -12.35
#define X_PROBE_OFFSET_FROM_EXTRUDER -25 // -left +right
#define Y_PROBE_OFFSET_FROM_EXTRUDER -29 // -front +behind
#define Z_PROBE_OFFSET_FROM_EXTRUDER -12.35 // -below (always!)
#define Z_RAISE_BEFORE_HOMING 4 // (in mm) Raise Z before homing (G28) for Probe Clearance.
// Be sure you have this distance over your Z_MAX_POS in case

65
Marlin/Marlin_main.cpp
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@ -1669,10 +1669,10 @@ void process_commands()
// Let's see if X and Y are homed and probe is inside bed area.
if(code_seen(axis_codes[Z_AXIS])) {
if ( (axis_known_position[X_AXIS]) && (axis_known_position[Y_AXIS]) \
&& (current_position[X_AXIS]+X_PROBE_OFFSET_FROM_EXTRUDER >= X_MIN_POS) \
&& (current_position[X_AXIS]+X_PROBE_OFFSET_FROM_EXTRUDER <= X_MAX_POS) \
&& (current_position[Y_AXIS]+Y_PROBE_OFFSET_FROM_EXTRUDER >= Y_MIN_POS) \
&& (current_position[Y_AXIS]+Y_PROBE_OFFSET_FROM_EXTRUDER <= Y_MAX_POS)) {
&& (current_position[X_AXIS] >= X_MIN_POS - X_PROBE_OFFSET_FROM_EXTRUDER) \
&& (current_position[X_AXIS] <= X_MAX_POS - X_PROBE_OFFSET_FROM_EXTRUDER) \
&& (current_position[Y_AXIS] >= Y_MIN_POS - Y_PROBE_OFFSET_FROM_EXTRUDER) \
&& (current_position[Y_AXIS] <= Y_MAX_POS - Y_PROBE_OFFSET_FROM_EXTRUDER)) {
current_position[Z_AXIS] = 0;
plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]);
@ -1789,26 +1789,67 @@ void process_commands()
if (code_seen('V') || code_seen('v')) {
verbose_level = code_value();
if (verbose_level < 0 || verbose_level > 4) {
SERIAL_PROTOCOLPGM("?Verbose Level not plausible (0-4).\n");
SERIAL_PROTOCOLPGM("?(V)erbose Level is implausible (0-4).\n");
break;
}
if (verbose_level > 0) {
SERIAL_PROTOCOLPGM("Enhanced G29 Auto_Bed_Leveling Code V1.25:\n");
SERIAL_PROTOCOLPGM("Full support at http://3dprintboard.com\n");
SERIAL_PROTOCOLPGM("G29 Enhanced Auto Bed Leveling Code V1.25:\n");
SERIAL_PROTOCOLPGM("Full support at: http://3dprintboard.com/forum.php\n");
if (verbose_level > 2) topo_flag = true;
}
}
int auto_bed_leveling_grid_points = code_seen('P') ? code_value_long() : AUTO_BED_LEVELING_GRID_POINTS;
if (auto_bed_leveling_grid_points < 2 || auto_bed_leveling_grid_points > AUTO_BED_LEVELING_GRID_POINTS) {
SERIAL_PROTOCOLPGM("?Number of probed points not plausible (2 minimum).\n");
SERIAL_PROTOCOLPGM("?Number of probed (P)oints is implausible (2 minimum).\n");
break;
}
int left_probe_bed_position = code_seen('L') ? code_value_long() : LEFT_PROBE_BED_POSITION;
int right_probe_bed_position = code_seen('R') ? code_value_long() : RIGHT_PROBE_BED_POSITION;
int back_probe_bed_position = code_seen('B') ? code_value_long() : BACK_PROBE_BED_POSITION;
int front_probe_bed_position = code_seen('F') ? code_value_long() : FRONT_PROBE_BED_POSITION;
// Define the possible boundaries for probing based on the set limits.
// Code above (in G28) might have these limits wrong, or I am wrong here.
#define MIN_PROBE_EDGE 10 // Edges of the probe square can be no less
const int min_probe_x = max(X_MIN, X_MIN + X_PROBE_OFFSET_FROM_EXTRUDER),
max_probe_x = min(X_MAX, X_MAX + X_PROBE_OFFSET_FROM_EXTRUDER);
min_probe_y = max(Y_MIN, Y_MIN + Y_PROBE_OFFSET_FROM_EXTRUDER);
max_probe_y = min(Y_MAX, Y_MAX + Y_PROBE_OFFSET_FROM_EXTRUDER);
int left_probe_bed_position = code_seen('L') ? code_value_long() : LEFT_PROBE_BED_POSITION,
right_probe_bed_position = code_seen('R') ? code_value_long() : RIGHT_PROBE_BED_POSITION,
front_probe_bed_position = code_seen('F') ? code_value_long() : FRONT_PROBE_BED_POSITION,
back_probe_bed_position = code_seen('B') ? code_value_long() : BACK_PROBE_BED_POSITION;
bool left_out_l = left_probe_bed_position < min_probe_x,
left_out_r = left_probe_bed_position > right_probe_bed_position - MIN_PROBE_EDGE,
left_out = left_out_l || left_out_r,
right_out_r = right_probe_bed_position > max_probe_x,
right_out_l =right_probe_bed_position < left_probe_bed_position + MIN_PROBE_EDGE,
right_out = right_out_l || right_out_r,
front_out_f = front_probe_bed_position < min_probe_y,
front_out_b = front_probe_bed_position > back_probe_bed_position - MIN_PROBE_EDGE,
front_out = front_out_f || front_out_b,
back_out_b = back_probe_bed_position > max_probe_y,
back_out_f = back_probe_bed_position < front_probe_bed_position + MIN_PROBE_EDGE,
back_out = back_out_f || back_out_b;
if (left_out || right_out || front_out || back_out) {
if (left_out) {
SERIAL_PROTOCOLPGM("?Probe (L)eft position out of range.\n");
left_probe_bed_position = left_out_l ? min_probe_x : right_probe_bed_position - MIN_PROBE_EDGE;
}
if (right_out) {
SERIAL_PROTOCOLPGM("?Probe (R)ight position out of range.\n");
right_probe_bed_position = right_out_r ? max_probe_x : left_probe_bed_position + MIN_PROBE_EDGE;
}
if (front_out) {
SERIAL_PROTOCOLPGM("?Probe (F)ront position out of range.\n");
front_probe_bed_position = front_out_f ? min_probe_y : back_probe_bed_position - MIN_PROBE_EDGE;
}
if (back_out) {
SERIAL_PROTOCOLPGM("?Probe (B)ack position out of range.\n");
back_probe_bed_position = back_out_b ? max_probe_y : front_probe_bed_position + MIN_PROBE_EDGE;
}
break;
}
#endif

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