add belt brim comb and gap controls

src/kiri/conf.js

@@ -317,6 +317,8 @@
                     firstLayerBedTemp: 0,
                     firstLayerBrim: 0,
                     firstLayerBrimTrig: 0,
+                    firstLayerBrimComb: 0,
+                    firstLayerBrimGap: 0,
                     firstLayerBeltLead: 3,
                     firstLayerFanSpeed: 0,
                     outputRaft: false,

src/kiri/init.js

@@ -1664,8 +1664,10 @@
             firstLayerLineMult:  UC.newInput(LANG.fl_sfac_s, {title:LANG.fl_sfac_l, convert:UC.toFloat, bound:UC.bound(0.5,2), modes:FDM, show:isNotBelt}),
             firstLayerPrintMult: UC.newInput(LANG.fl_mult_s, {title:LANG.fl_mult_l, convert:UC.toFloat, modes:FDM}),
             fdmSep:              UC.newBlank({class:"pop-sep", modes:FDM, show:isBelt}),
-            firstLayerBrim:      UC.newInput(LANG.fl_brim_s, {title:LANG.fl_brim_l, convert:UC.toFloat, modes:FDM, show:isBelt}),
+            firstLayerBrim:      UC.newInput(LANG.fl_brim_s, {title:LANG.fl_brim_l, convert:UC.toInt, modes:FDM, show:isBelt}),
-            firstLayerBrimTrig:  UC.newInput(LANG.fl_brmn_s, {title:LANG.fl_brmn_l, convert:UC.toFloat, modes:FDM, show:isBelt}),
+            firstLayerBrimComb:  UC.newInput(LANG.fl_brco_s, {title:LANG.fl_brco_l, convert:UC.toInt, modes:FDM, show:isBelt}),
+            firstLayerBrimTrig:  UC.newInput(LANG.fl_brmn_s, {title:LANG.fl_brmn_l, convert:UC.toInt, modes:FDM, show:isBelt}),
+            firstLayerBrimGap:   UC.newInput(LANG.fl_brgp_s, {title:LANG.fl_brgp_l, convert:UC.toFloat, modes:FDM, show:isBelt}),
             fdmSep:              UC.newBlank({class:"pop-sep", modes:FDM, show:isBelt}),
             firstLayerBeltLead:  UC.newInput(LANG.fl_bled_s, {title:LANG.fl_bled_l, convert:UC.toFloat, modes:FDM, show:isBelt}),
             fdmSep:              UC.newBlank({class:"pop-sep", modes:FDM, show:isNotBelt}),

src/mode/fdm/client.js

@@ -52,7 +52,9 @@
             "sliceSupportOffset": LANG.sp_offs_s,
             "sliceLayerStart": LANG.sl_strt_s,
             "firstLayerBrim": LANG.fl_brim_s,
+            "firstLayerBrimComb": LANG.fl_brco_s,
             "firstLayerBrimTrig": LANG.fl_brmn_s,
+            "firstLayerBrimGap": LANG.fl_brgp_s,
             // export
             "zHopDistance": LANG.ad_zhop_s,
             "arcTolerance": LANG.ad_zhop_s,

src/mode/fdm/prepare.js

@@ -501,12 +501,16 @@
             // }
 
             let thresh = firstLayerHeight * 1.05;
+            let seqn = 0;
+
             // iterate over layers, find extrusion on belt and
             // apply corrections and add brim when specified
             for (let layer of output) {
                 let params = getRangeParameters(settings, layer.layer || 0);
                 let firstLayerBrim = params.firstLayerBrim;
                 let firstLayerBrimTrig = params.firstLayerBrimTrig;
+                let firstLayerBrimComb = params.firstLayerBrimComb;
+                let firstLayerBrimGap = params.firstLayerBrimGap || 0;
                 let lastout, first = false;
                 let minz = Infinity, maxy = -Infinity, minx = Infinity, maxx = -Infinity;
                 let mins = Infinity;
@@ -539,18 +543,24 @@
                     continue;
                 }
                 // add brim, if specified
-                if (first && firstLayerBrim) {
+                if (first && firstLayerBrim && seqn <= firstLayerBrimComb) {
                     let { emit, tool } = first;
                     let y = maxy;
                     let z = minz;
-                    let b = Math.max(firstLayerBrim, 1);
+                    let g = firstLayerBrimGap || 0;
+                    let b = Math.max(firstLayerBrim, 1) + g;
                     let tmpout = [];
                     layer.last().retract = true;
                     print.addOutput(tmpout, newPoint(maxx + b, y, z), 0,    firstLayerSeek, tool);
-                    print.addOutput(tmpout, newPoint(maxx + 0, y, z), emit, firstLayerRate, tool).retract = true;
+                    print.addOutput(tmpout, newPoint(maxx + g, y, z), emit, firstLayerRate, tool).retract = true;
                     print.addOutput(tmpout, newPoint(minx - b, y, z), 0,    firstLayerSeek, tool);
-                    print.addOutput(tmpout, newPoint(minx - 0, y, z), emit, firstLayerRate, tool).retract = false;
+                    print.addOutput(tmpout, newPoint(minx - g, y, z), emit, firstLayerRate, tool).retract = false;
                     layer.splice(0,0,...tmpout);
+                    if (firstLayerBrimComb) {
+                        seqn++;
+                    }
+                } else {
+                    seqn = 0;
                 }
             }
         }

web/kiri/lang/en.js

@@ -310,10 +310,14 @@ kiri.lang['en-us'] = {
     // FDM BELT ONLY
     fl_zoff_s:      "belt offset",
     fl_zoff_l:      ["height offset from belt","of lowest extrusion","in millimeters"],
-    fl_brim_s:      "brim size",
+    fl_brim_s:      "brim width",
     fl_brim_l:      ["add brim to part bottom","size is width in millimeters","0 to disable"],
     fl_brmn_s:      "brim trigger",
     fl_brmn_l:      ["add brims only when segment","facing belt is shorter than this","value in millimeters","0 = Infinity"],
+    fl_brco_s:      "brim comb",
+    fl_brco_l:      ["add brim gaps","every n lines","0 to disable"],
+    fl_brgp_s:      "brim gap",
+    fl_brgp_l:      ["spacing between brim and part","in millimeters"],
     fl_bled_s:      "part anchor",
     fl_bled_l:      ["belt part anchor","at start of print","in millimeters"],