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@@ -4853,9 +4853,21 @@ void lcd_wizard(WizState state)
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int wizard_event;
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const char *msg = NULL;
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while (!end) {
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- printf_P(PSTR("Wizard state: %d"), state);
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+ printf_P(PSTR("Wizard state: %d\n"), state);
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switch (state) {
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case S::Run: //Run wizard?
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+
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+ // 2019-08-07 brutal hack - solving the "viper" situation.
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+ // It is caused by the fact, that tmc2130_st_isr makes a crash detection before the printers really starts.
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+ // And thus it calles stop_and_save_print_to_ram which sets the saved_printing flag.
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+ // Having this flag set during normal printing is lethal - mesh_plan_buffer_line exist in the middle of planning long travels
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+ // which results in distorted print.
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+ // This primarily happens when the printer is new and parked in 0,0
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+ // So any new printer will fail the first layer calibration unless being reset or the Stop function gets called.
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+ // We really must find a way to prevent the crash from happening before the printer is started - that would be the correct solution.
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+ // Btw. the flag may even trigger the viper situation on normal start this way and the user won't be able to find out why.
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+ saved_printing = false;
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+
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wizard_active = true;
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wizard_event = lcd_show_multiscreen_message_yes_no_and_wait_P(_i("Hi, I am your Original Prusa i3 printer. Would you like me to guide you through the setup process?"), false, true);////MSG_WIZARD_WELCOME c=20 r=7
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if (wizard_event) {
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DRracer