add step down parameter to level op

src/kiri/conf.js

@@ -411,6 +411,7 @@
                     camLevelSpindle: 1000,
                     camLevelOver: 0.75,
                     camLevelSpeed: 1000,
+                    camLevelDown: 0,
                     camRoughTool: 1000,
                     camRoughSpindle: 1000,
                     camRoughDown: 2,

src/mode/cam/client.js

@@ -765,13 +765,15 @@
             tool:    'camLevelTool',
             spindle: 'camLevelSpindle',
             step:    'camLevelOver',
-            rate:    'camLevelSpeed'
+            rate:    'camLevelSpeed',
+            down:    'camLevelDown'
         }).inputs = {
             tool:    UC.newSelect(LANG.cc_tool, {}, "tools"),
             sep:     UC.newBlank({class:"pop-sep"}),
             spindle: UC.newInput(LANG.cc_spnd_s, {title:LANG.cc_spnd_l, convert:UC.toInt, show:hasSpindle}),
             step:    UC.newInput(LANG.cc_sovr_s, {title:LANG.cc_sovr_l, convert:UC.toFloat, bound:UC.bound(0.01,1.0)}),
-            rate:    UC.newInput(LANG.cc_feed_s, {title:LANG.cc_feed_l, convert:UC.toInt, units:true})
+            rate:    UC.newInput(LANG.cc_feed_s, {title:LANG.cc_feed_l, convert:UC.toInt, units:true}),
+            down:    UC.newInput(LANG.cc_sdwn_s, {title:LANG.cc_sdwn_l, convert:UC.toFloat, units:true}),
         };
 
         createPopOp('rough', {

src/mode/cam/ops.js

@@ -55,7 +55,7 @@
                 y1 = bounds.min.y,
                 x2 = bounds.max.x,
                 y2 = bounds.max.y,
-                z = bounds.max.z;
+                z = bounds.max.z - (op.down || 0);
 
             if (stock.x && stock.y && stock.z) {
                 x1 = -stock.x / 2;