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-rw-r--r--mixer-embedded.scad10
-rw-r--r--mixer-threaded.scad3
-rw-r--r--mixer.scad40
3 files changed, 44 insertions, 9 deletions
diff --git a/mixer-embedded.scad b/mixer-embedded.scad
new file mode 100644
index 0000000..397572f
--- a/dev/null
+++ b/mixer-embedded.scad
@@ -0,0 +1,10 @@
+extrusion_width=.4;
+
+use <mixer.scad>;
+
+the_mixer(
+ pushfit_type="embedded",
+ pushfit_d = 12,
+ pushfit_h = 7,
+ interpushfit = extrusion_width
+);
diff --git a/mixer-threaded.scad b/mixer-threaded.scad
new file mode 100644
index 0000000..ff3c0aa
--- a/dev/null
+++ b/mixer-threaded.scad
@@ -0,0 +1,3 @@
+use <mixer.scad>;
+
+the_mixer();
diff --git a/mixer.scad b/mixer.scad
index 3200023..7b2e5d4 100644
--- a/mixer.scad
+++ b/mixer.scad
@@ -1,3 +1,3 @@
-layer_height=0.2; extrusion_width=0.4;
+layer_height=0.2; extrusion_width=0.45;
epsilon=0.01;
$fs=0.125;
@@ -16,10 +16,13 @@ module pushfit_thread(h=10) {
module the_mixer(
pushfit_d = 10, pushfit_h = 10,
+ pushfit_type = "threaded", // threaded|embedded
+ pushfit_ring_h = 4.7, // height of embedded pushfit ring
+ pushfit_insert_d = 8, // diameter of pushfit insert legs hole
liner_d = 4, liner_id = 2,
filament_d = 1.75,
join_angle = 30,
- interpushfit = 2*extrusion_width, // space between two pushfit's threads
- pushfit_s = 2, // shell around pushfit threads
+ interpushfit = 2*extrusion_width, // space between two pushfit holes
+ pushfit_s = 2, // shell around pushfit holes
output_l = 4, // length of output after before pushfit
outer_r = 3, // outer radius
@@ -36,4 +39,13 @@ module the_mixer(
}
}
+ module pushfit() {
+ if(pushfit_type=="threaded") {
+ pushfit_thread(h=pushfit_h);
+ }else if(pushfit_type=="embedded") {
+ translate([0,0,pushfit_h-pushfit_ring_h])
+ cylinder(d=pushfit_d,h=pushfit_ring_h,$fn=pushfit_d*PI*2);
+ cylinder(d=pushfit_insert_d,h=pushfit_h,$fn=pushfit_insert_d*PI*2);
+ }
+ }
ld = liner_d+liner_d_tolerance;
@@ -41,5 +53,6 @@ module the_mixer(
pfrx = interpushfit/2/cos(join_angle/2); // radial margin
pfR = pushfit_d/2+pfrx; // radius of pushfit with margin
- pfo = pfR/tan(join_angle/2); // pushfit thread ofset
+ pfoo = pushfit_type=="threaded" ? 0 : (pushfit_h-pushfit_ring_h); // offset of pushfit offset
+ pfo = pfR/tan(join_angle/2)-pfoo; // pushfit thread ofset
h = pushfit_d+pushfit_s*2;
@@ -60,5 +73,5 @@ module the_mixer(
//cylinder(d=ld,h=pfo-linero+1,$fn=ld*PI*4);
translate([0,pfo,0]) rotate([-90,0,0])
- pushfit_thread(h=pushfit_h);
+ pushfit();
}
rotate([90,0,0]) {
@@ -66,5 +79,5 @@ module the_mixer(
//cylinder(d=ld,h=output_l+1,$fn=ld*PI*4);
translate([0,0,output_l])
- pushfit_thread(h=pushfit_h);
+ pushfit();
}
hull() {
@@ -80,9 +93,18 @@ module the_mixer(
}
-if(false) {
+module this() {
+ the_mixer(
+ pushfit_type="embedded",
+ pushfit_d = 12,
+ pushfit_h = 7,
+ interpushfit = extrusion_width
+ );
+}
+
+if(!false) {
difference() {
- the_mixer();
+ this();
cylinder(d=100,h=100);
}
}else
- the_mixer();
+ this();