add draft shield option to extend brim to part height

src/kiri-mode/fdm/prepare.js

@@ -41,9 +41,11 @@
             firstLayerMult = process.firstLayerPrintMult,
             purgeTower = process.outputPurgeTower || 0,
             layerRetract = process.outputLayerRetract,
+            draftShield = process.outputDraftShield,
             layerno = 0,
             zoff = 0,
             zmin = 0,
+            brimout,
             layerout = [],
             print = self.worker.print = KIRI.newPrint(settings, widgets),
             beltfact = Math.cos(Math.PI/4);
@@ -154,7 +156,7 @@
             // if using brim vs raft
             if (process.outputBrimCount) {
                 let polys = [],
-                    preout = [];
+                    preout = brimout = [];
 
                 // offset specified # of brims
                 POLY.offset(brims, nozzle, {
@@ -548,6 +550,12 @@
                 lastExt = lastOut.extruder;
                 lastPoly = slice.lastPoly;
                 lastLayer = layerout;
+
+                // draft shield
+                if (brimout && draftShield) {
+                    print.addPrintPoints(brimout, layerout, null);
+                }
+
                 if (layerRetract && layerout.length) {
                     layerout.last().retract = true;
                 }

src/kiri/conf.js

@@ -349,6 +349,7 @@
                     firstLayerFlatten: 0,
                     outputRaft: false,
                     outputRaftSpacing: 0.2,
+                    outputDraftShield: false,
                     outputTemp: 200,
                     outputBedTemp: 60,
                     outputFeedrate: 50,

src/kiri/init.js

@@ -1782,6 +1782,7 @@
             outputBrimCount:     UC.newInput(LANG.fl_skrt_s, {title:LANG.fl_skrt_l, convert:UC.toInt, modes:FDM, show:isNotBelt}),
             outputBrimOffset:    UC.newInput(LANG.fl_skro_s, {title:LANG.fl_skro_l, convert:UC.toFloat, modes:FDM, show:isNotBelt}),
             fdmSep:              UC.newBlank({class:"pop-sep", modes:FDM, show:isNotBelt}),
+            outputDraftShield:   UC.newBoolean(LANG.fr_draf_s, onBooleanClick, {title:LANG.fr_draf_l, modes:FDM, trigger: true, show:isNotBelt}),
             outputRaftSpacing:   UC.newInput(LANG.fr_spac_s, {title:LANG.fr_spac_l, convert:UC.toFloat, bound:UC.bound(0.0,3.0), modes:FDM, show: () => UI.outputRaft.checked && isNotBelt() }),
             outputRaft:          UC.newBoolean(LANG.fr_nabl_s, onBooleanClick, {title:LANG.fr_nabl_l, modes:FDM, trigger: true, show:isNotBelt}),
 

web/kiri/lang/en.js

@@ -359,6 +359,8 @@ kiri.lang['en-us'] = {
     fr_spac_l:      ["additional layer spacing","between 1st layer and raft","in millimeters"],
     fr_nabl_s:      "raft enable",
     fr_nabl_l:      ["create a raft under the","model for better adhesion","uses skirt offset and","disables skirt output"],
+    fr_draf_s:      "draft shield",
+    fr_draf_l:      ["extend brim to height of part","which acts as a shield","and traps hot air"],
 
     // FDM BELT ONLY
     fl_zoff_s:      "belt offset",