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authorMichael Krelin <hacker@klever.net>2018-09-06 20:58:54 (UTC)
committer Michael Krelin <hacker@klever.net>2018-09-06 20:58:54 (UTC)
commit1409beae6cdd6520ef037b0d2a083844ce0e0c47 (patch) (side-by-side diff)
treef6a4df48f0f870a3f152db11bf464052b5add237
parent4cc8be3ab27f44d8a298b8df3df0092d1f95e067 (diff)
downloadextrudery-1409beae6cdd6520ef037b0d2a083844ce0e0c47.zip
extrudery-1409beae6cdd6520ef037b0d2a083844ce0e0c47.tar.gz
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spring compression scale
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--Makefile4
-rw-r--r--another.scad37
2 files changed, 35 insertions, 6 deletions
diff --git a/Makefile b/Makefile
index 5753a68..b9d2b4c 100644
--- a/Makefile
+++ b/Makefile
@@ -16,3 +16,3 @@ clean:
stl-another-%:
- $(MAKE) another-$*-{body,body-label,lever,knob,knob-label,springpad}.stl
+ $(MAKE) another-$*-{body,body-label,body-scale,lever,knob,knob-label,springpad}.stl
@@ -22,2 +22,4 @@ another-%-body-label.stl: another-%.scad another.scad
$(OPENSCAD_BIN) $(OPENSCAD_FLAGS) -D 'what="body.label"' -o "$@" "$<"
+another-%-body-scale.stl: another-%.scad another.scad
+ $(OPENSCAD_BIN) $(OPENSCAD_FLAGS) -D 'what="body.scale"' -o "$@" "$<"
another-%-lever.stl: another-%.scad another.scad
diff --git a/another.scad b/another.scad
index fd73a61..83a4e43 100644
--- a/another.scad
+++ b/another.scad
@@ -375,2 +375,4 @@ module the_extruder(
body_label();
+ // scale
+ body_scale();
@@ -379,2 +381,19 @@ module the_extruder(
}//body module
+ module body_scale() {
+ scale_thickness = 2*layer_height;
+ nscales = 5;
+ x1 = -gearbox_d/2+fsw-st_h+st_w+st_bump*2-st_bump_tip/2;
+ x0 = -gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+st_split_w+st_split_w_tolerance+st_bump_tip/2;
+ w0 = st_split_w+st_split_w_tolerance+2*(extrusion_width+2*extrusion_width);
+ w1 = 2*(longwing-gearbox_d/2-extrusion_width);
+ translate([0,-longwing,body_h-scale_thickness])
+ difference() {
+ for(x=[x0:(x1-x0)/(nscales-1):x1]) let(w=w0+(w1-w0)*(x-x0)/(x1-x0))
+ translate([x-st_bump_tip/2,-w/2,0])
+ cube(size=[st_bump_tip,w,scale_thickness+epsilon]);
+ let(w=st_split_w+st_split_w_tolerance+extrusion_width)
+ translate([-gearbox_d/2,-w/2,-1])
+ cube(size=[fsw,w,scale_thickness+2]);
+ }
+ }
module body_label() {
@@ -395,7 +414,12 @@ module the_extruder(
st_bump_tip = 2*extrusion_width;
+ st_smalld = st_screw_d+st_screw_d_tolerance+min_xy_shell;
+ st_bigd = spring_d+spring_d_clearance/2;
+ st_hf = (st_bigd-st_smalld)/2;
+ st_h = max(st_hf*3,fsw-st_screw_l+st_hf);
+ st_w = sp_ch;
module springpad() {
- smalld=st_screw_d+st_screw_d_tolerance+min_xy_shell;
- bigd = spring_d+spring_d_clearance/2;
- hf = (bigd-smalld)/2;
- h = max(hf*3,fsw-st_screw_l+hf);
+ smalld=st_smalld;
+ bigd = st_bigd;
+ hf = st_hf;
+ h = st_h;
translate([-gearbox_d/2+fsw-h,-longwing,filament_elevation])
@@ -409,3 +433,3 @@ module the_extruder(
l = body_h-ls_z;
- w = sp_ch;
+ w = st_w;
translate([0,-st_split_w/2,0]) mirror([1,0,0]) {
@@ -500,2 +524,3 @@ module the_extruder(
else if(what=="body.label") color("brown",0.7) body_label();
+ else if(what=="body.scale") color("brown",0.7) body_scale();
else if(what=="knob") color("red",0.7) knob();
@@ -507,2 +532,3 @@ module the_extruder(
color("brown",0.7) body_label();
+ color("brown",0.7) body_scale();
}else{
@@ -511,2 +537,3 @@ module the_extruder(
color("brown",0.7) body_label();
+ color("brown",0.7) body_scale();
color("red",0.7) knob();