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-rw-r--r--another.scad23
1 files changed, 9 insertions, 14 deletions
diff --git a/another.scad b/another.scad
index 4a9fc01..8fd9356 100644
--- a/another.scad
+++ b/another.scad
@@ -47,7 +47,6 @@ module the_extruder(
pf = pushfit_embeddest,
pf_shell = max(3*layer_height,3*extrusion_width),
pf_smooth = true,
- pf_guidelen = 3, // the length of ptfe guide before pushfit
// empty spaces
idler_travel = 3, // how far should idler travel when pressed
@@ -65,6 +64,7 @@ module the_extruder(
st_screw_d_tolerance=.5,
min_z_shell = 4*layer_height, // the very minimal shell thickness along z-axis.
+ min_xy_shell = 2*extrusion_width,
what="lever", // lever|body|knob|springpad|*
left=false,
@@ -311,26 +311,21 @@ module the_extruder(
cylinder(d=mount_screwhead_d,h=body_h+1,$fn=fnd*mount_screwhead_d);
}//for
// pushfit
+ pf_offset = mount_d/sqrt(2)/2+mount_screw_d;
translate([0,0,filament_elevation])
rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0])
rotate([-90,0,0])
- translate([0,0,mount_d/sqrt(2)/2+mount_screw_d+epsilon])
+ translate([0,0,pf_offset])
rotate([0,0,180]) {
pushfit(pf);
mirror([0,0,1]) {
- translate([0,0,-epsilon])
- teardrop(d=filament_guide_d,h=pf_guidelen+epsilon,angle=225);
- nl = 3.5; /* TODO: */
- translate([0,0,pf_guidelen-1])
- teardrop(d=filament_path_d,h=nl+2,angle=-225);
fh = (filament_guide_d-filament_path_d)/2;
- union() {
- translate([0,0,pf_guidelen+nl])
- cylinder(d1=filament_path_d,d2=filament_guide_d,h=fh,$fn=fnd*filament_guide_d);
- translate([0,0,pf_guidelen+nl+fh-epsilon])
- teardrop(d=filament_guide_d,h=gearbox_d/2,angle=225);
- }
- }
+ fo = pf_offset-(idler_d+idler_clearance)/2-fh;
+ translate([0,0,-1]) teardrop(d=filament_guide_d,h=fo-extrusion_width+1,angle=225);
+ translate([0,0,-1]) teardrop(d=filament_path_d,h=gearbox_d/2+1,angle=-225);
+ translate([0,0,fo+epsilon])
+ cylinder(d1=filament_path_d,d2=filament_guide_d,h=fh,$fn=fnd*filament_guide_d);
+ }//mirror
}//rotate translate rotate translate rotate translate
// pulley
cylinder(d=pulley_d+pulley_d_clearance,h=body_h+1,$fn=fnd*(pulley_d+pulley_d_clearance));