make bottom clear configurable

src/cli/kiri-cam-process.json

@@ -59,6 +59,7 @@
     "camHelicalDownSpeed": 250,
     "camHelicalSpeed": 1000,
     "camHelicalDown": 5,
+    "camHelicalBottomFinish":true,
     "camHelicalThru": 0,
     "camHelicalOffset": "auto",
     "camHelicalForceStartAngle": false,

src/kiri/core/conf.js

@@ -522,6 +522,7 @@ export const conf = {
                 camHelicalDownSpeed: 250,
                 camHelicalSpeed: 1000,
                 camHelicalDown: 5,
+                camHelicalBottomFinish: true,
                 camHelicalThru: 0,
                 camHelicalOffset: "auto",
                 camHelicalForceStartAngle: false,

src/kiri/mode/cam/cl-ops.js

@@ -525,15 +525,16 @@ export function createPopOps() {
 
     createPopOp('helical', {
         tool:    'camHelicalTool',
+        offset:  'camHelicalOffset',
         spindle: 'camHelicalSpindle',
         rate:    'camHelicalDownSpeed',
         feed:    'camHelicalSpeed',
         down:    'camHelicalDown',
-        thru:    'camHelicalThru',
-        offset:  'camHelicalOffset',
-        forceStartAng:'camHelicalForceStartAngle',
+        finish:  'camHelicalBottomFinish',
         startAng:'camHelicalStartAngle',
         offOver: 'camHelicalOffsetOverride',
+        thru:    'camHelicalThru',
+        forceStartAng:'camHelicalForceStartAngle',
         fromTop: 'camHelicalFromStockTop',
     }).inputs = {
         tool:     UC.newSelect(LANG.cc_tool, {}, "tools"),
@@ -546,7 +547,8 @@ export function createPopOps() {
         startAng: UC.newInput(LANG.ch_stra_s, {title:LANG.ch_stra_l, convert:UC.toDegsFloat, bound:UC.bound(-360,360),show:() => env.poppedRec.forceStartAng}),
         offOver:  UC.newInput(LANG.cc_offd_s, {title:LANG.cc_offd_l, convert:UC.toFloat, units:true, bound:UC.bound(0,Infinity)}),
         sep:      UC.newBlank({class:"pop-sep"}),                                                                                                                                                                       
-        forceStartAng: UC.newBoolean(LANG.ch_fsta_s, undefined, {title:LANG.ch_fsta_l, }),
+        finish:   UC.newBoolean(LANG.ch_fini_s,undefined, { title:LANG.ch_fini_l }),
+        forceStartAng: UC.newBoolean(LANG.ch_fsta_s, undefined, {title:LANG.ch_fsta_l }),
         fromTop:  UC.newBoolean(LANG.cd_ftop_s,undefined, {title:LANG.cd_ftop_l}),
         sep:      UC.newBlank({class:"pop-sep"}),
         thru:     UC.newInput(LANG.cd_thru_s, {title:LANG.cd_thru_l, convert:UC.toFloat, units:true}),

src/kiri/mode/cam/op-helical.js

@@ -24,6 +24,7 @@ export class OpHelical extends CamOp {
       offset,
       down,
       thru,
+      finish,
     } = op;
     let {stock} = settings
 
@@ -139,22 +140,19 @@ export class OpHelical extends CamOp {
             })
           );
 
-          // poly.addPoints([
-          //   newPoint(0,0,0)
-          // ])
-
-          //do a full circle at the bottom
-          poly.addPoints(
-            arcToPath(finalEnd, finalEnd, numSegs, {
-              clockwise,
-              radius,
-              center,
-            }),
-          );
-
-          poly.append(
-            finalEnd.clone().setZ(zBottom),
-          )
+          //if settings dictate, do a full circle at the bottom
+          if(finish){
+            poly.addPoints(
+              arcToPath(finalEnd, finalEnd, numSegs, {
+                clockwise,
+                radius,
+                center,
+              }),
+            );
+            poly.append(
+              finalEnd.clone().setZ(zBottom),
+            )
+          }
           break;
         }
         currentZ = bottom;

web/kiri/lang/en.js

@@ -617,6 +617,8 @@ self.lang['en-us'] = {
     ch_stra_s:      "start angle",
     ch_stra_l:      ["start angle of helix","in degrees ccw of +x axis"],
     ch_selc_l:      ["select a cylinder face", "inner holes that are too small","will be ignored."],
+    ch_fini_s:      "bottom finish pass",
+    ch_fini_l:      ["trace a circle at bottom of helix","used for hole clearing"],
 
 
     // CNC FLIP