diff --git a/Firmware/GPAD_API/FIRMWARE_VERSION b/Firmware/GPAD_API/FIRMWARE_VERSION
index 0d816f8e..f985c60d 100644
--- a/Firmware/GPAD_API/FIRMWARE_VERSION
+++ b/Firmware/GPAD_API/FIRMWARE_VERSION
@@ -1 +1 @@
-0.58.5
+0.58.6
diff --git a/enclosure/imported_scadModels/B_shell.scad b/enclosure/imported_scadModels/B_shell.scad
index 3d2e9dd7..d81b48c0 100644
--- a/enclosure/imported_scadModels/B_shell.scad
+++ b/enclosure/imported_scadModels/B_shell.scad
@@ -8,7 +8,7 @@ use <PartNumbering.scad>
 
 
 PartName = "BShell";
-PartVersion = "V4.0";
+PartVersion = "V4.1";
 Date = "26141";
 
 speaker_ring = 1;
@@ -19,6 +19,7 @@ speaker_ring = 1;
 LEDspacing = 12.7 ;
 LEDYposOffset = 15.24  ; // offset from the Encoder edge of PCB
 LEDXposOffset = 27.94  ; // offset from the connector edge of PCB
+LEDdiameter= 5.1;
 ////////////////////////////////////////////////////////////////////
 
 ////////////////////////////////////////////////////////////////////
@@ -101,7 +102,7 @@ color( Couleur1,1){
 translate( [3*Thick+2,Thick+5,0]){         //([-.5,0,0]){
 //(On/Off, Xpos, Ypos, Diameter)
 for ( i = [-6.5:-2.5] ){
-    CylinderHole(1,PCBLength-(LEDXposOffset+LEDspacing*i),LEDYposOffset,5); //LED1 , switch signs to move downwards ??Question
+    CylinderHole(1,PCBLength-(LEDXposOffset+LEDspacing*i),LEDYposOffset,LEDdiameter); //LED1 , switch signs to move downwards ??Question
 }
 //CylinderHole(1,PCBLength-46.99,PCBWidth-FootPosX,5); //LED6 power //??Question extra?
 //(On/Off, Xpos,Ypos,Length,Width,Filet)
@@ -118,7 +119,7 @@ translate( [3*Thick+2,Thick+5,0]){         //([-.5,0,0]){
 //  (On/Off, Xpos, Ypos, Diameter)
 SpeakerHole(1, Krake_rev2_76mmSPK ? SpeakerPositionX+2.5-(3*Thick+2) : SpeakerHoleX, Krake_rev2_76mmSPK ?SpeakerPositionY+9-(Thick+5):SpeakerHoleY ,SpeakerDiameter_mm/2.5-1.5,Ccenter=true); //Buzzer // Speaker 
 //LED hole generator  unsure why this works   ??Question repeated commented to avoid confusion    
-CylinderHole(1,PCBLength-46.99+translationVariable,PCBWidth-FootPosX,5); //LED6 power light ??Question delete extra
+CylinderHole(1,PCBLength-46.99+translationVariable,PCBWidth-FootPosX,LEDdiameter); //LED6 power light ??Question delete extra
 //(On/Off, Xpos,Ypos,Length,Width,Filet)
 SquareHole(1,DisplayXpos,DisplayYpos,DisplayLenght,DisplayWidth,DisplayFilet,Ccenter=true);   //Display
 CylinderHole(1,SpeakerHoleX,68.58,2); //reset hole
diff --git a/enclosure/parts_toPrint/U_Box_V105_Krake_RevB_BShell_V4.0.stl b/enclosure/parts_toPrint/U_Box_V105_Krake_RevB_BShell_V4.0.stl
deleted file mode 100644
index 6f10239c..00000000
Binary files a/enclosure/parts_toPrint/U_Box_V105_Krake_RevB_BShell_V4.0.stl and /dev/null differ
diff --git a/enclosure/parts_toPrint/U_Box_V105_Krake_RevB_BShell_V4.1.stl b/enclosure/parts_toPrint/U_Box_V105_Krake_RevB_BShell_V4.1.stl
new file mode 100644
index 00000000..4792e01e
Binary files /dev/null and b/enclosure/parts_toPrint/U_Box_V105_Krake_RevB_BShell_V4.1.stl differ