author | Michael Krelin <hacker@klever.net> | 2018-08-02 10:50:09 (UTC) |
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committer | Michael Krelin <hacker@klever.net> | 2018-08-02 10:50:09 (UTC) |
commit | 5ee18dd18d2bc9557ab635db6e997a09c9717c10 (patch) (side-by-side diff) | |
tree | e963abd2cea6139cb31afb1e78f68256f8741424 | |
parent | b717362a236ec1a95d54e7106f11e4f3e3e85b76 (diff) | |
download | extrudery-5ee18dd18d2bc9557ab635db6e997a09c9717c10.zip extrudery-5ee18dd18d2bc9557ab635db6e997a09c9717c10.tar.gz extrudery-5ee18dd18d2bc9557ab635db6e997a09c9717c10.tar.bz2 |
another: minor adjustment to spring tensioner
-rw-r--r-- | another.scad | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/another.scad b/another.scad index cd084ce..fe30fce 100644 --- a/another.scad +++ b/another.scad @@ -298,59 +298,60 @@ module the_extruder( }//difference if(supports) intersection() { difference() { translate([0,0,ls_z-ls_h/2-epsilon]) cylinder(d=gearbox_d,h=ls_h+2*epsilon,$fn=2*PI*gearbox_d); cylinder(d=pulley_d+pulley_clearance,h=body_h+1,$fn=2*PI*(pulley_d+pulley_clearance)); } // supports // TODO: hardcoded stuff below… if(false) { // parallel for(y=[-gearbox_d:4:gearbox_d]) translate([0,y-extrusion_width/2,0]) cube(size=[gearbox_d,extrusion_width,body_h]); }else{ // radial for(zr=[-65:(65+50)/7:50]) rotate([0,0,zr]) translate([0,-extrusion_width/2,0]) cube(size=[gearbox_d,extrusion_width,body_h]); } } }//body module module springpad() { - smalld=st_screw_d+extrusion_width; + smalld=st_screw_d+2*extrusion_width; bigd = spring_d+spring_d_clearance/2; hf = (bigd-smalld)/2; translate([-gearbox_d/2+st_shell+st_nut_h+st_shell+smalld,-longwing,filament_elevation]) rotate([0,90,0]) difference() { union() { cylinder(d1=smalld,d2=bigd,h=hf,$fn=bigd*PI*2); translate([0,0,hf-epsilon]) cylinder(d=bigd,h=hf*2,$fn=bigd*PI*2); } - cylinder(d=st_screw_d,h=2*hf,$fn=st_screw_d*PI*2); + translate([0,0,-epsilon]) + cylinder(d=st_screw_d,h=2*hf+epsilon,$fn=st_screw_d*PI*2); } } module knob() { ch = knob_indent_d/2; translate([0,0,body_h+epsilon]) { mirror([0,0,1]) translate([0,0,-epsilon]) { difference() { cylinder(d=pulley_d,h=knob_bore_l,$fn=pulley_d*PI*2); translate([0,0,-1]) difference() { cylinder(d=bore_d+knob_bore_d_tolerance,h=knob_bore_l+2); translate([-bore_d/2-1,bore_dd-bore_d/2+knob_bore_d_tolerance/2,-1]) cube([bore_d+2,bore_d/2,knob_bore_l+4]); } } } difference() { union() { cylinder(d1=gearbox_d-2*ch,d2=gearbox_d,h=ch+epsilon,$fn=PI*gearbox_d*2); translate([0,0,ch]) cylinder(d=gearbox_d,h=knob_h-2*ch+epsilon,$fn=PI*gearbox_d*2); translate([0,0,knob_h-ch]) cylinder(d1=gearbox_d,d2=gearbox_d-2*ch,h=ch,$fn=PI*gearbox_d*2); } |