| -rw-r--r-- | another.scad | 57 |
1 files changed, 50 insertions, 7 deletions
diff --git a/another.scad b/another.scad index 2be24e4..844dc3b 100644 --- a/another.scad +++ b/another.scad @@ -33,2 +33,6 @@ module the_extruder( knob_indents = 12, + // spring tensioner + st_nut_d = 9, st_nut_h = 4, + st_screw_d = 5, + st_shell = 4*extrusion_width, @@ -52,6 +56,8 @@ module the_extruder( - what="lever", + what="lever", // lever|body|knob|springpad|* left=false, vitamins = true, - supports = false + supports = false, + tensioner = true, + debug = false ) { @@ -199,4 +205,21 @@ module the_extruder( } - translate([0,-longwing,ls_z]) rotate([0,-90,0]) - finger_indent(d=lever_thickness-1,r=15); + translate([0,-longwing,ls_z]) rotate([0,-90,0]) { + if(!tensioner) finger_indent(d=lever_thickness-1,r=15); else { + if(debug) translate([0,-gearbox_d,-gearbox_d]) cube(size=[body_h/2+1,gearbox_d,gearbox_d+2]); + mirror([0,0,1]) { + translate([0,0,st_shell]) + hull() for(o=[0,spring_d]) translate([0,-o,0]) + rotate([0,0,30]) + cylinder(d=st_nut_d,h=st_nut_h,$fn=6); + translate([0,0,-1]) cylinder(d=st_screw_d,h=fsw+2,$fn=st_screw_d*PI*2); + bigd = spring_d+spring_d_clearance; + hf = (bigd-st_screw_d)/2; + translate([0,0,st_shell+st_nut_h+st_shell-epsilon]) + cylinder(d1=st_screw_d,d2=bigd, + h=hf+epsilon, $fn=bigd*PI*2 ); + translate([0,0,st_shell+st_nut_h+st_shell+hf-epsilon]) + cylinder(d=bigd,h=fsw+1,$fn=bigd*PI*2); + } + } + } } // translate @@ -262,3 +285,3 @@ module the_extruder( //translate([-mount_d/2,-longwing,filament_elevation]) - translate([mount_d/2,-longwing,filament_elevation]) + if(!tensioner) translate([mount_d/2,-longwing,filament_elevation]) rotate([0,-90,0]) difference() { @@ -297,2 +320,17 @@ module the_extruder( + module springpad() { + smalld=st_screw_d+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); + } + } + module knob() { @@ -324,3 +362,3 @@ module the_extruder( }//knob module - + mirrorleft() @@ -329,3 +367,7 @@ module the_extruder( else if(what=="knob") color("red",0.7) knob(); - else if(what=="both" || what=="*") { + else if(what=="springpad") color("blue",0.7) springpad(); + else if(what=="both") { + color("green",0.7) lever(); + color("yellow",0.7) body(); + }else{ color("green",0.7) lever(); @@ -333,2 +375,3 @@ module the_extruder( color("red",0.7) knob(); + color("blue",0.7) springpad(); } |