diff --git a/src/kiri-mode/cam/client.js b/src/kiri-mode/cam/client.js
index f10816a4..06835777 100644
--- a/src/kiri-mode/cam/client.js
+++ b/src/kiri-mode/cam/client.js
@@ -1291,15 +1291,15 @@ CAM.init = function(kiri, api) {
         off:     UC.newRow([ UC.newButton(LANG.off, editOff) ], {class:"ext-buttons f-row"}),
         sep:     UC.newBlank({class:"pop-sep"}),
         power:   UC.newInput(LANG.cl_powr_s, {title:LANG.cl_powr_l, convert:UC.toFloat, bound:UC.bound(0,1.0), show:() => !poppedRec.adapt}),
-        flatz:   UC.newInput(LANG.cl_flaz_s, {title:LANG.cl_flaz_l, convert:UC.toFloat, show:() => poppedRec.flat}),
-        minp:    UC.newInput(LANG.cl_minp_s, {title:LANG.cl_minp_l, convert:UC.toFloat, bound:UC.bound(0,1.0), show:() => poppedRec.adapt}),
         maxp:    UC.newInput(LANG.cl_maxp_s, {title:LANG.cl_maxp_l, convert:UC.toFloat, bound:UC.bound(0,1.0), show:() => poppedRec.adapt}),
-        minz:    UC.newInput(LANG.cl_minz_s, {title:LANG.cl_minz_l, convert:UC.toFloat, show:() => poppedRec.adapt}),
+        minp:    UC.newInput(LANG.cl_minp_s, {title:LANG.cl_minp_l, convert:UC.toFloat, bound:UC.bound(0,1.0), show:() => poppedRec.adapt}),
         maxz:    UC.newInput(LANG.cl_maxz_s, {title:LANG.cl_maxz_l, convert:UC.toFloat, show:() => poppedRec.adapt}),
+        minz:    UC.newInput(LANG.cl_minz_s, {title:LANG.cl_minz_l, convert:UC.toFloat, show:() => poppedRec.adapt}),
+        flatz:   UC.newInput(LANG.cl_flaz_s, {title:LANG.cl_flaz_l, convert:UC.toFloat, show:() => poppedRec.flat}),
         sep:     UC.newBlank({class:"pop-sep"}),
         adapt:   UC.newBoolean(LANG.cl_adap_s, undefined, {title:LANG.cl_adap_l}),
         adaptrp: UC.newBoolean(LANG.cl_adrp_s, undefined, {title:LANG.cl_adrp_l, show:() => poppedRec.adapt}),
-        flat:    UC.newBoolean(LANG.cl_flat_s, undefined, {title:LANG.cl_flat_l}),
+        flat:    UC.newBoolean(LANG.cl_flat_s, undefined, {title:LANG.cl_flat_l }),
     };
 
     const editDisable = gcodeEditor('Laser Disable Script', 'disable');
diff --git a/src/kiri-mode/cam/prepare.js b/src/kiri-mode/cam/prepare.js
index b928c5dd..fddebebd 100644
--- a/src/kiri-mode/cam/prepare.js
+++ b/src/kiri-mode/cam/prepare.js
@@ -265,7 +265,11 @@ function prepEach(widget, settings, print, firstPoint, update) {
                     return point;
                 }
                 z -= minz;
-                power = minp + (z / deltaz) * (maxp - minp);
+                if (minp < maxp) {
+                    power = minp + (z / deltaz) * (maxp - minp);
+                } else {
+                    power = minp - (z / deltaz) * (minp - maxp);
+                }
             }
             if (lasering.flat) {
                 point.z = lasering.flatz;
diff --git a/web/kiri/lang/en.js b/web/kiri/lang/en.js
index baae6a6f..d76bb7e9 100644
--- a/web/kiri/lang/en.js
+++ b/web/kiri/lang/en.js
@@ -563,15 +563,15 @@ self.kiri.lang['en-us'] = {
     cl_adrp_l:      "apply a moduluse of Z height using the given band to make repeating patterns",
     cl_flat_s:      "flatten",
     cl_flat_l:      "flatten output to a given Z height",
-    cl_flaz_s:      "height",
+    cl_flaz_s:      "flat height",
     cl_flaz_l:      ["flatten output to this Z height", "in workspace units"],
-    cl_minp_s:      "min power",
-    cl_minp_l:      ["lowest power for the Z band. when "],
-    cl_maxp_s:      "max power",
-    cl_maxp_l:      ["highest power for the Z band"],
-    cl_minz_s:      "min height",
+    cl_minp_s:      "z min power",
+    cl_minp_l:      ["power setting at the lowest part of the Z band. may be higher or lower than the other end of the Z band."],
+    cl_maxp_s:      "z max power",
+    cl_maxp_l:      ["power setting at the highest part of the Z band. may be higher or lower than the other end of the Z band."],
+    cl_minz_s:      "min z height",
     cl_minz_l:      ["lowest Z band position"],
-    cl_maxz_s:      "max height",
+    cl_maxz_s:      "max z height",
     cl_maxz_l:      ["highest Z band position. when set to 0, uses the highest Z point of the workspace"],
 
     // CNC CUTOUT TABS