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authorMichael Krelin <hacker@klever.net>2018-08-10 09:42:10 (UTC)
committer Michael Krelin <hacker@klever.net>2018-08-10 09:42:10 (UTC)
commit0f096a81ab50e7dd4a9e949f7b4c49e701d3652c (patch) (side-by-side diff)
treea09720eb2b2cb60fc3589a81f619a3ed3f4089a1
parent0c87c56ff30c8f72e6348482a95a07841ce93e10 (diff)
downloadextrudery-0f096a81ab50e7dd4a9e949f7b4c49e701d3652c.zip
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another: add tensioner screw tolerance
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--another.scad11
1 files changed, 6 insertions, 5 deletions
diff --git a/another.scad b/another.scad
index 7a3b0ac..da5f695 100644
--- a/another.scad
+++ b/another.scad
@@ -54,12 +54,13 @@ module the_extruder(
protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion
mount_screw_d_tolerance=.4,
idler_v_tolerance=.5,
knob_bore_d_tolerance=.6,
st_nut_h_tolerance=.2,
st_nut_d_tolerance=.2,/* TODO: make it st_nut_w_tolerance */
+ st_screw_d_tolerance=.3,
what="lever", // lever|body|knob|springpad|*
left=false,
vitamins = true,
supports = false, bridges = true,
tensioner = true,
@@ -213,17 +214,17 @@ module the_extruder(
if(!tensioner) finger_indent(d=lever_thickness-1,r=15); else {
mirror([0,0,1]) {
translate([0,0,st_thickshell])
hull() for(o=[0,spring_d]) translate([0,-o,0])
rotate([0,0,30])
cylinder(d=st_nut_d+st_nut_d_tolerance,h=st_nut_h+st_nut_h_tolerance,$fn=6);
- translate([0,0,-1]) cylinder(d=st_screw_d,h=fsw+2,$fn=fnd*st_screw_d);
+ translate([0,0,-1]) cylinder(d=st_screw_d+st_screw_d_tolerance,h=fsw+2,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
bigd = spring_d+spring_d_clearance;
- hf = (bigd-st_screw_d)/2;
+ hf = (bigd-st_screw_d-st_screw_d_tolerance)/2;
translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell-epsilon])
- cylinder(d1=st_screw_d,d2=bigd,
+ cylinder(d1=st_screw_d+st_screw_d_tolerance,d2=bigd,
h=hf+epsilon, $fn=fnd*bigd);
translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon])
cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd);
}
}
}
@@ -332,26 +333,26 @@ module the_extruder(
}
}
}//body module
module springpad() {
- smalld=st_screw_d+2*extrusion_width;
+ smalld=st_screw_d+st_screw_d_tolerance+2*extrusion_width;
bigd = spring_d+spring_d_clearance/2;
hf = (bigd-smalld)/2;
translate([-gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+1,-longwing,filament_elevation])
rotate([0,90,0]) difference() {
union() {
cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd);
translate([0,0,hf-epsilon])
cylinder(d=bigd,h=hf*2,$fn=fnd*bigd);
translate([0,0,3*hf])
sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4);
}
translate([0,0,-epsilon])
- cylinder(d=st_screw_d,h=2*hf+epsilon,$fn=fnd*st_screw_d);
+ cylinder(d=st_screw_d+st_screw_d_tolerance,h=2*hf+epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
}
}
module knob() {
ch = knob_indent_d/2;
translate([0,0,body_h+epsilon]) {