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revert G28 to homing, as no-one uses it properly anyway

This commit is contained in:
Michael Moon 2011-07-16 21:01:31 +10:00
parent 49e2844213
commit 8483073380
1 changed files with 17 additions and 19 deletions
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36
gcode_process.c
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@ -234,41 +234,39 @@ void process_gcode_command() {
// G28 - go home
case 28:
//? ==== G28: Move to Origin ====
//?
//? Example: G28
//?
//? This causes the RepRap machine to move back to its X, Y and Z zero endstops. It does so
//? accelerating, so as to get there fast. But when it arrives it backs off by 1 mm in each
//? direction slowly, then moves back slowly to the stop. This ensures more accurate positioning.
//?
//? If you add coordinates, then just the axes with coordinates specified will be zeroed. Thus
//?
//? G28 X0 Y72.3
//?
//? will zero the X and Y axes, but not Z. The actual coordinate values are ignored.
//? ==== G28: Home ====
//?
queue_wait();
if (next_target.seen_X) {
zero_x();
#if defined X_MIN_PIN
home_x_negative();
#elif defined X_MAX_PIN
home_x_positive();
#endif
axisSelected = 1;
}
if (next_target.seen_Y) {
zero_y();
#if defined Y_MIN_PIN
home_y_negative();
#elif defined Y_MAX_PIN
home_y_positive();
#endif
axisSelected = 1;
}
if (next_target.seen_Z) {
zero_z();
#if defined Z_MAX_PIN
home_z_positive();
#elif defined Z_MIN_PIN
home_z_negative();
#endif
axisSelected = 1;
}
// there's no point in moving E, as E has no endstops
if (!axisSelected) {
zero_x();
zero_y();
zero_z();
home();
}
break;