From 3845da24a18867a50a949cff153cb4923ce7ccf7 Mon Sep 17 00:00:00 2001
From: Ghostkeeper <rubend@tutanota.com>
Date: Thu, 23 May 2019 15:53:00 +0200
Subject: [PATCH] Add new material properties for cleanly breaking off
 materials

When performing a long retract, the firmware can use these material properties to determine how fast and how far it needs to retract.
The retraction goes in two stages: Anti-ooze retraction stops oozing, and then the break retraction breaks off the filament from the bead in the nozzle.

Contributes to issue CURA-6329.
---
 resources/definitions/fdmprinter.def.json | 58 +++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 793a0e0889..f8cf1eb97f 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -2234,6 +2234,64 @@
                     "settable_per_mesh": false,
                     "settable_per_extruder": true
                 },
+                "material_crystallinity":
+                {
+                    "label": "Crystalline Material",
+                    "description": "Is this material the type that breaks off cleanly when heated, or is it the type that produces long intertwined polymer chains?",
+                    "type": "bool",
+                    "default_value": true,
+                    "enabled": false,
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": true
+                },
+                "material_anti_ooze_retraction_distance":
+                {
+                    "label": "Anti-ooze Retraction Distance",
+                    "description": "How far the material needs to be retracted before it stops oozing.",
+                    "type": "float",
+                    "unit": "mm",
+                    "default_value": 4,
+                    "minimum_value": "0",
+                    "maximum_value_warning": "retraction_amount",
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": true
+                },
+                "material_anti_ooze_retraction_speed":
+                {
+                    "label": "Anti-ooze Retraction Speed",
+                    "description": "How fast the material needs to be retracted during a filament switch to prevent oozing.",
+                    "type": "float",
+                    "unit": "mm/s",
+                    "default_value": 5,
+                    "minimum_value": "0",
+                    "maximum_value": "machine_max_feedrate_e",
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": true
+                },
+                "material_break_distance":
+                {
+                    "label": "Break Retraction Distance",
+                    "description": "How far can the filament be stretched before it breaks, while heated?",
+                    "type": "float",
+                    "unit": "mm",
+                    "default_value": 16,
+                    "minimum_value": "0",
+                    "maximum_value_warning": "retraction_amount * 4",
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": true
+                },
+                "material_break_speed":
+                {
+                    "label": "Break Retraction Speed",
+                    "description": "How fast does the filament need to be retracted in order to break cleanly?",
+                    "type": "float",
+                    "unit": "mm/s",
+                    "default_value": 2,
+                    "minimum_value": "0",
+                    "maximum_value": "machine_max_feedrate_e",
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": true
+                },
                 "material_flow":
                 {
                     "label": "Flow",