prepared body with all holes except mounting holes

1 files changed, 187 insertions, 1 deletions

diff --git a/body/radxa_zero_3e.scad b/body/radxa_zero_3e.scad
index 731f883..b5eca5f 100644
--- a/body/radxa_zero_3e.scad
+++ b/body/radxa_zero_3e.scad
@@ -1,12 +1,21 @@
 include <helpers.scad>
+include <noctua_nf_a4x20.scad>
 
 radxa_zero_3e_pcb_w = 30;
 radxa_zero_3e_pcb_h = 65;
 radxa_zero_3e_pcb_thickness = 1.6;
 
+radxa_zero_3e_pcb_screw_offset = 3.5;
+radxa_zero_3e_pcb_distance_between_holes_w = 23;
+radxa_zero_3e_pcb_distance_between_holes_h = radxa_zero_3e_pcb_h - radxa_zero_3e_pcb_screw_offset * 2;
+
 rpi_protoboard_connectors_h = 12;
 rpi_protoboard_z_offset = 15;
 
+radxa_zero_3e_fan_hole_offset = 28;
+radxa_zero_3e_mount_plate_screw_holder_height = 4;
+radxa_zero_3e_mount_plate_h = 2;
+
 function radxa_zero_3e_pcb_size() = [
     radxa_zero_3e_pcb_w,
     radxa_zero_3e_pcb_h,
@@ -80,9 +89,186 @@ module radxa_zero_3e_with_protoboard_and_connectors()
     radxa_zero_3e_rj45_male();
 }
 
+module radxa_zero_3e_mount_plate()
+{
+    // outer screw holder diameter. there is no more space there,
+    // so only round 6 mm screw holders will fit under radxa
+    oshd = 6;
+    // screw holder height
+    shh = radxa_zero_3e_mount_plate_screw_holder_height;
+    
+    dbhw = radxa_zero_3e_pcb_distance_between_holes_w;
+    dbhh = radxa_zero_3e_pcb_distance_between_holes_h;
+    so = radxa_zero_3e_pcb_screw_offset;
+    
+    outer_cyl_delta = so - oshd / 2;
+    ocd = outer_cyl_delta;
+    bph = radxa_zero_3e_mount_plate_h;
+    hih = hole_insert_height;
+    hid = hole_insert_diameter;
+    
+    echo("radxa_zero_3e_pcb_distance_between_holes_h: ", radxa_zero_3e_pcb_distance_between_holes_h);
+    echo("dbhh: ", dbhh);
+        
+    difference()
+    {
+        union()
+        {
+            // hole holders
+            translate([0, 0, -shh / 2])
+            for (xo = [-dbhw / 2, dbhw / 2], yo = [-so, -so - dbhh])
+            {
+                //translate([-dbhw / 2, -so, 0])
+                translate([xo, yo, 0])
+                cylinder($fn = dToFn(oshd), d = oshd, h = shh, center = true);
+            }
+            
+            // outer hole holders
+            *translate([0, 0, -shh / 2])
+            for (xo = [-dbhw / 2 - ocd, dbhw / 2 + ocd], yo = [-so + ocd, -so - dbhh - ocd])
+            {
+                translate([xo, yo, 0])
+                cylinder($fn = dToFn(oshd), d = oshd, h = shh, center = true);
+            }
+            
+            // bottom plate
+            hull()
+            translate([0, 0, -shh - bph / 2])
+            for (xo = [-dbhw / 2, dbhw / 2], yo = [-so, -so - dbhh])
+            {
+                //translate([-dbhw / 2, -so, 0])
+                translate([xo, yo, 0])
+                cylinder($fn = dToFn(oshd), d = oshd + 1, h = bph, center = true);
+            }
+            
+            // fan: distance between holes
+            fdbh = ld3007ms_distance_between_holes;
+
+            // fan/plate hole holders
+            fan_plate_hole_holder_h = hih - bph;
+            fphhh = fan_plate_hole_holder_h;
+            translate([0, 0, -shh / 2])
+            translate([0, -radxa_zero_3e_fan_hole_offset / 2 - (oshd - hid), -fphhh / 2])
+            for (xo = [-fdbh / 2, fdbh / 2], yo = [0, 0 - fdbh])
+            {
+                //translate([-dbhw / 2, -so, 0])
+                translate([xo, yo, 0])
+                cylinder($fn = dToFn(oshd), d = oshd, h = fphhh, center = true);
+            }
+        }
+    }
+}
+
+// with screw holes and fan holes
+// TODO: production: create a new one with normal holes and w/o fan holes
+module radxa_zero_3e_mount_plate_holes()
+{   
+    // fan hole diameter, put under CPU
+    fan_hole_d = ld3007ms_w - 2;
+    fhd = fan_hole_d;
+    fan_hole_h = 10;
+    fhh = fan_hole_h;
+    
+    // screw holder height
+    shh = radxa_zero_3e_mount_plate_screw_holder_height;
+    
+    // TODO: deduplicate, move to a global var
+    bottom_plate_h = 2;
+    bph = bottom_plate_h;
+    
+    dbhw = radxa_zero_3e_pcb_distance_between_holes_w;
+    dbhh = radxa_zero_3e_pcb_distance_between_holes_h;
+    so = radxa_zero_3e_pcb_screw_offset;
+    hid = hole_insert_diameter;
+    
+    // fan holes
+    translate([0, -radxa_zero_3e_fan_hole_offset, 0])
+    hull()
+    {
+        // top
+        translate([0, 0, -shh + $tiny_padding])
+        cylinder($fn = dToFn(fhd), d = fhd - 2, h = 0.001, center = true);
+        
+        // bottom
+        translate([0, 0, -shh - bph + $tiny_padding])
+        //cylinder($fn = dToFn(fhd), d = fhd, h = fhh, center = true);
+        cylinder($fn = dToFn(fhd), d = fhd, h = 0.001, center = true);
+        
+        // prolongate to cut scanner main frame
+        translate([0, 0, -20])
+        //cylinder($fn = dToFn(fhd), d = fhd, h = fhh, center = true);
+        cylinder($fn = dToFn(fhd), d = fhd, h = 0.001, center = true);
+    }
+    
+    // fan screw holders holes
+    translate([0, 0, -bph - shh - $tiny_padding])
+    radxa_zero_3e_mount_plate_outer_holes();
+    
+    // radxa hot inserts holes
+    translate([0, 0, -shh / 2])
+    for (xo = [-dbhw / 2, dbhw / 2], yo = [-so, -so - dbhh])
+    {
+        //translate([-dbhw / 2, -so, 0])
+        translate([xo, yo, $tiny_padding])
+        cylinder($fn = dToFn(hid), d = hid, h = shh, center = true);
+    }
+}
+
+module radxa_zero_3e_mount_plate_with_holes()
+{
+    shh = radxa_zero_3e_mount_plate_screw_holder_height;
+    bph = radxa_zero_3e_mount_plate_h;
+    
+    //color("green", 0.1)
+    difference()
+    {
+        radxa_zero_3e_mount_plate();
+        radxa_zero_3e_mount_plate_holes();
+    }
+    
+    translate([0, -radxa_zero_3e_fan_hole_offset, -shh - bph])
+    rotate([-90, 0, 0])
+    *%ld3007ms();
+}
+
+// these holes should be positioned by a module which knows
+// radxa position in body, so putting them at z==0 for now
+module radxa_zero_3e_mount_plate_outer_holes()
+{
+    shh = radxa_zero_3e_mount_plate_screw_holder_height;
+    bph = radxa_zero_3e_mount_plate_h;
+    
+    translate([0, -radxa_zero_3e_fan_hole_offset, 0])
+    rotate([90, 0, 0])
+    ld3007ms_holes();
+}
+
 //radxa_zero_3e();
 //rpi_zero_protoboard();
 
 //radxa_zero_3e_with_protoboard();
 //%radxa_zero_3e_rj45_male();
-//radxa_zero_3e_with_protoboard_and_connectors();
\ No newline at end of file
+*%radxa_zero_3e_with_protoboard_and_connectors();
+
+*translate([0, 0, -6 - $tiny_padding])
+*radxa_zero_3e_mount_plate_outer_holes();
+
+*radxa_zero_3e_mount_plate();
+*radxa_zero_3e_mount_plate_with_holes();
+*radxa_zero_3e_mount_plate_outer_holes();
+//translate([0, fwo, 0])
+//translate([0, 0, 20])
+translate([0, 0, -10])
+//translate([0, 0, radxa_zero_3e_pcb_h - 5])
+//rotate([90, 0, 0])
+*%radxa_zero_3e_mount_plate_outer_holes();
+
+// debug, visualize 1 mm
+*union()
+{
+    translate([15 - 0.5, -28, -6])
+    cube([1, 1, 1], center = true);
+
+    translate([15 - 0.5, -28, -3])
+    cube([1, 1, 1], center = true);
+}
\ No newline at end of file