V0.1 skirt mod for SSD1306 OLED (#380)

* Add V0.1 skirt OLED mod

* Add V0.1 OLED skirt mod to mod list

* User nicer photo

* Remove redundant licensing statement

printer_mods/README.md

@@ -174,6 +174,7 @@ like so:
 |mjoaris |[10x11 Cable Chain Endcaps](./mjoaris/10x11_Cable_Chain_Endcaps) |Printable Endcaps for 10x11 Cable Chains |:x: |:heavy_check_mark: |:heavy_check_mark: |:x:|
 | |[Mini12864 LCD Mount](./mjoaris/Mini12864_LCD_Mount_for_V2.4) |Swiveling case for the Fysetc Mini12864 LCD |:x: |:grey_question: |:heavy_check_mark: |:x:|
 |Mosher|[Door hinges with M3 screws shafts](./mosher/m3_door_hinges) |Simple mod of print in place door hinges, which uses m3 screws as shafts. |:x:|:x:|:heavy_check_mark:|:x:|
+|mpfl |[V0.1 OLED-skirt](./mpfl/V0.1_skirt_OLED) |V0.1 skirt with 0.96" OLED|:heavy_check_mark: |:x: |:x: |:x:|
 |MrBean66| [SKR Pro DIN Mount](./MrBean66/SKR_PRO_Mount/) |Simple mod to mount the SKR Pro board from BTT to a DIN rails. |:x:|:heavy_check_mark:|:heavy_check_mark:|:x:|
 |Nashuar|[V0 Dragon Toolhead M2.5x8](./Nashuar/V0_Dragon_ToolheadStockScrews) |This toolhead uses the stock M2.5 screw that came with the dragon hotend |:heavy_check_mark:|:x:|:x:|:x:|
 |natewalck |[V1.8 Jigs](./natewalck/v1.8_Jigs) |Jigs for assembling V1.8 |:x: |:heavy_check_mark: |:x: |:x:|

printer_mods/mpfl/V0.1_skirt_OLED/README.md

@@ -0,0 +1,8 @@
+# V0.1 0.96" OLED skirt
+
+![Crappy photo](photo.png)
+
+Inspired by [`madros/V0_skirt_OLED`](https://github.com/VoronDesign/VoronUsers/tree/master/printer_mods/madros/V0_skirt_OLED), but for the V0.1. Please see that directory for installation instructions - no need to repeat them here.
+
+OpenSCAD file provided if you want to customise (perhaps you'd like to replace that Voron logo with your serial).
+You will need to grab [`Cowling_LOGO_ONLY_x1.STL`](https://github.com/VoronDesign/Voron-0/blob/V0.1/STLs/Toolheads/Mini_Afterburner/Cowling_LOGO_ONLY_x1.STL) and [`Skirt_x3.STL`](https://github.com/VoronDesign/Voron-0/blob/V0.1/STLs/Skirt_x3.STL) from [`VoronDesign/Voron-0`](https://github.com/VoronDesign/Voron-0/releases/tag/V0.1).

printer_mods/mpfl/V0.1_skirt_OLED/v0.1-skirt-oled.scad

@@ -0,0 +1,115 @@
+bezel = 0.4;
+bezel_h = calculate_bezel(bezel);
+screen_bezel = 4;
+screen_bezel_h = calculate_bezel(screen_bezel);
+prototype = false;
+
+standoff_screw_diameter = 2.1;
+standoff_outer_diameter = standoff_screw_diameter + 2;
+
+difference() {
+    union() {
+        stock_skirt();
+        translate([-(27.5+10+2)/2, 0.5, bezel])
+            oled_holder_positive();
+    }
+    translate([-28.6/2, 3, 2])
+        oled_holder_negative();
+    if (prototype) {
+        translate([25, -10, -10])
+            cube([100,50,50]); 
+        mirror([1,0,0])
+        translate([25, -10, -10])
+            cube([100,50,50]);
+    }
+    translate([-30,1,-0.01])
+        scale([0.5, 0.5, 1])
+            import("Cowling_LOGO_ONLY_x1.STL");
+}
+
+module stock_skirt() {
+    translate([-110,-41.5,0])
+        import("Skirt_x3.STL");
+    mirror([1,0,0])
+        translate([-110,-41.5,0])
+            import("Skirt_x3.STL");
+}
+
+module oled_proxy() {
+    translate([5.5/2,6.37,-1])
+        color("black")
+            cube([22,11,1]);
+    difference() {
+        color("green")
+            cube([27.5, 27.8, 1.2]);
+        translate([2,2,-0.4])
+            cylinder(d = standoff_screw_diameter, h=2, $fn=30);
+        translate([2,25.8,-0.4])
+            cylinder(d = standoff_screw_diameter, h=2, $fn=30);
+        translate([25.5,25.8,-0.4])
+            cylinder(d = standoff_screw_diameter, h=2, $fn=30);
+        translate([25.5,2,-0.4])
+            cylinder(d = standoff_screw_diameter, h=2, $fn=30);
+
+    }
+}
+
+module oled_holder_positive() {
+    minkowski() {
+        cube([27.5+10+2-bezel_h, 27.8+6+2-bezel, 3-2*bezel]);
+        rotate([0,45,0])
+            cube([bezel_h,bezel_h,bezel_h]);
+    }
+    translate([7.95,6,2])
+        screen_standoff();
+    translate([7.95,29.8,2])
+        screen_standoff();
+    translate([31.45,29.8,2])
+        screen_standoff();
+    translate([31.45,6,2])
+        screen_standoff();
+}
+
+module oled_holder_negative() {
+    difference() {
+        union() {
+            cube([28.5, 31, 10]); // PCB cutout
+            translate([2.5,3.5,-1])
+                cylinder(d = standoff_screw_diameter, h = 4, $fn = 30);
+            translate([2.5,27.3,-1])
+                cylinder(d = standoff_screw_diameter, h = 4, $fn = 30);
+            translate([26,27.3,-1])
+                cylinder(d = standoff_screw_diameter, h = 4, $fn = 30);
+            translate([26,3.5,-1])
+                cylinder(d = standoff_screw_diameter, h = 4, $fn = 30);
+        }
+        translate([2.5,3.5,-1])
+            screen_standoff();
+        translate([2.5,27.3,-1])
+            screen_standoff();
+        translate([26,27.3,-1])
+            screen_standoff();
+        translate([26,3.5,-1])
+            screen_standoff();
+    }
+    // Screen cutout
+    translate([3.5/2-screen_bezel,6.37,-12])
+        minkowski() {
+            cube([25-screen_bezel_h,14-screen_bezel_h,0.1]);
+            minkowski() {
+            rotate([0,45,0])
+                cube(screen_bezel_h);
+            rotate([45,0,0])
+                cube(screen_bezel_h);
+            }
+        }
+}
+
+module screen_standoff() {
+    difference() {
+        cylinder(d = standoff_outer_diameter, h = 3, $fn = 30);
+        cylinder(d = standoff_screw_diameter, h = 4, $fn = 30);
+    }
+}
+
+function calculate_bezel(bezel) = ((bezel*bezel)*2)^0.5;