// -*- C -*-
-opening_height = 7.84 - 0.3 + 0.60;
-opening_depth = 6.0; // 7.88;
-openingcnr_dia = 2.75;
-opening_topprotr = 1.54;
+opening_height = 7.84;
+opening_depth = 7.88;
+openingedge_dia = 2.00;
+opening_protrh = 2.00;
-gap = 0.25;
+pivot_x = 6;
+inside_len = 4;
-retain_rad = 1.65;
-retain_protr = 0.35;
-retain_hgap_adjust = 1.5;
+pivoting_gap = 0.1;
-retain_stalk_len = 6.5;
-retain_stalk_h = 1.5;
-retain_bend_gap = 2.0;
-retain_empir_angle = -25;
-retain_pushmore_adj = 0.75;
+outside_gap = 3;
+outside_len = 13;
+outend_height = 3;
-hgap_empir_adjust = -0.5 -2.50;
+outside_len_bot = 23;
-topprotr_rad = 0.35;
+outside_pushh = 4;
+outside_pushslope = 1.4;
+outside_push_inadj = 0.82;
-bot_overlap = 5;
-bot_w = 3;
+ourcirc_r = 0.5 / 2;
-handle_w = 10;
-handle_rh = 3;
-handle_rcut = 3;
+ribble_dia = 2.2;;
-cutout_gap = 1.5;
+opening_protr_slop = 0.1;
-total_len = 35;
-retaining_len = 10;
+intooth_top_slop = 0.1;
+inside_h_xgap = 1;
-overret_hch = 5;
+pivot_r = 2;
+pivot_slop = 0.25;
+
+strap_above = 0.1;
+strap_th = 2.5;
+strap_below = 3;
+strap_width = 5;
+
+width = 35;
+nstraps = 2;
+
+test_width = 5;
// calculated
-ins_irad = openingcnr_dia/2 + gap;
-ins_orad = openingcnr_dia/2 + opening_height - gap;
-ins_th = ins_orad - ins_irad;
+inside_h = opening_height/2 - opening_protrh - inside_h_xgap/2;
-handle_x0 = ins_irad + hgap_empir_adjust;
-handle_h = bot_overlap + ins_th;
-handle_y0 = -ins_orad-bot_overlap;
-handle_y1 = handle_y0 + handle_h;
+edge_or = openingedge_dia/2 + opening_protr_slop;
-handle_x1 = handle_x0 + bot_w + handle_w;
+Q0 = [ openingedge_dia/2,
+ openingedge_dia/2 + opening_height/2 ];
-topprotr_y = -ins_irad + opening_topprotr;
+p4p5d = [edge_or + ourcirc_r, 0];
-retain_mxy = [handle_x0 - retain_rad - retain_hgap_adjust,
- -ins_orad + retain_rad - retain_protr - retain_pushmore_adj];
+P0 = [ pivot_x, pivoting_gap ];
+P4 = Q0 - p4p5d;
+P3t = [ P4[0], Q0[1] - openingedge_dia/2 + opening_protrh
+ - intooth_top_slop - ourcirc_r ];
+P2 = P4 + [ -(inside_len - ourcirc_r*2), 0 ];
+P1 = [ P2[0], P3t[1] - (inside_h + ourcirc_r*2) ];
-retain_cutout_h = retain_rad * 2 + retain_bend_gap;
+P5 = Q0 + p4p5d;
-overret_gaplen = retain_cutout_h / cos(retain_empir_angle);
+P8t = [ outside_len - ourcirc_r, P5[1] ];
+P9t = P8t + [ 0, -(strap_above + strap_th + strap_below - ourcirc_r*2) ];
-module InsertSection(){
- hull(){
- translate([-ins_irad, -ins_irad])
- mirror([1, 0])
- square([opening_depth - ins_irad, 0.1]);
- translate([-ins_irad - topprotr_rad,
- topprotr_y - topprotr_rad])
- circle(r=topprotr_rad, $fn=10);
+P9b = [ P9t[0], -P9t[1] + outside_gap ];
+P8b = P9b + [ 0, outend_height ];
+
+P89eadj = [ outside_len_bot - outside_len, 0 ];
+P8eb = P8b + P89eadj;
+P9eb = P9b + P89eadj;
+
+P6t = P5 + [ 0, outside_pushh - ourcirc_r*2 ];
+P7 = [ P6t[0] + (P6t[1] - P1[1]) / outside_pushslope,
+ P1[1] ];
+
+P3a = P3t + [ -outside_push_inadj, 0 ];
+P6a = P6t + [ -outside_push_inadj, 0 ];
+
+outside_push_inadj_slope = (P3t[1]-P4[1]) / (P6a[1]-P5[1]);
+
+ribble_rad = ribble_dia/2;
+
+kit_adj_shift = -opening_height - 2.0;
+
+module ExtrusionSect(){
+ cr = openingedge_dia/2;
+ toph = opening_height/2 + opening_protrh;
+
+ for (my=[0,1]) {
+ mirror([0,my]) {
+ translate(Q0) {
+ hull(){
+ circle(r=cr, $fn=20);
+ translate([-cr,10]) square([cr*2, 1]);
+ }
+ }
+ }
}
- translate([0, -ins_orad]) square([ins_irad+1, ins_th]);
- intersection(){
- translate([0, -ins_irad])
- mirror([1,1])
- square([100, opening_depth]);
+ translate([-opening_depth, -toph]) {
difference(){
- circle(r= ins_orad);
- circle(r= ins_irad, $fn=20);
+ translate([-5,-5])
+ square([opening_depth+6, toph*2+10]);
+ square([opening_depth+2, toph*2]);
+ }
+ }
+}
+
+module PsHull(ps) {
+ hull(){
+ for (p = ps) {
+ translate(p)
+ circle(r = ourcirc_r, $fn=10);
}
}
}
-module HandleSection(){
+module LeverSect(top, inadj=false){
+ P3 = inadj ? P3a : P3t;
+ P6 = inadj ? P6a : P6t;
+ P8 = top ? P8t : P8b;
+ P9 = top ? P9t : P9b;
difference(){
- hull(){
- translate([handle_x0, handle_y0])
- square([bot_w, handle_h]);
- for (y= [handle_y1 - handle_rh/2,
- handle_y1 - ins_th + handle_rh/2]) {
- translate([handle_x1 - handle_rh/2, y])
- circle(r= handle_rh/2, $fn=20);
- }
+ union(){
+ PsHull([P2,P3,P4]);
+ PsHull([P0,P1,P2,P5,P8,P9]);
}
hull(){
- for (x= [handle_x0 + bot_w + handle_rcut/2,
- handle_x1 - handle_rh/2 - handle_rcut/2]) {
- translate([x, handle_y1])
- circle(r = handle_rcut/2, $fn=20);
+ for (dp = [ [0,0],
+ (P6-P5),
+ (P3-P4)
+ ]) {
+ translate(Q0 + 5*dp) circle(r=edge_or, $fn=20);
}
}
}
- hull(){
- for (y= [handle_y1 - handle_rh/2,
- handle_y1 - 3*handle_rh/2])
- translate([handle_x1 - handle_rh/2, y])
- circle(r = handle_rh/2, $fn=20);
- }
- translate([ handle_x1 - handle_rh*2,
- handle_y1 - handle_rh/2 ])
- circle(r = handle_rh/2, $fn=20);
}
-module RetainSection(){
- translate(retain_mxy) {
- rotate(retain_empir_angle) {
- circle(r=retain_rad, $fn=20);
- square([retain_stalk_len + 1, retain_stalk_h]);
+module StrapSectTop(){
+ translate(P9t + ourcirc_r * [+1,-1]) {
+ difference(){
+ circle(r = strap_below + strap_th, $fn=40);
+ circle(r = strap_below, $fn=40);
}
}
}
-module RetainCutout(gapping=false){
- translate(retain_mxy) {
- rotate(retain_empir_angle) {
- translate([-50, -retain_rad]) {
- square([50 + retain_stalk_len,
- retain_cutout_h]);
+module StrapSectBot(){
+ mirror([0,1]){
+ for (dx = [ -(strap_below + strap_th),
+ 0 ]) {
+ translate(P9b + [ ourcirc_r + dx, -10 ]) {
+ square([strap_th, 20]);
}
}
}
-}
+}
-module GappingSection(){
- difference(){
- union(){
- InsertSection();
- HandleSection();
- }
- RetainCutout(true);
+module Ribbles(xmax, xmin, y){
+ for (x = [ xmax + ourcirc_r - ribble_rad :
+ -ribble_rad * 4 :
+ xmin ]) {
+ translate([x, y])
+ circle(r = ribble_rad, $fn=20);
}
}
-module WithRetainSection(){
+module LeverSectTop(){
difference(){
union(){
- InsertSection();
- HandleSection();
+ LeverSect(true, false);
+ Ribbles(P8t[0],
+ Q0[0] + edge_or + ribble_rad*2,
+ P5[1] + ourcirc_r);
}
- RetainCutout();
+ translate([pivot_x,0]) circle(r= pivot_r + pivot_slop, $fn=20);
}
- RetainSection();
-}
-
-module BasicSection(){
- InsertSection();
- HandleSection();
-}
-
-module Handle(){
- bs0 = retaining_len + overret_gaplen;
- bs1 = bs0 + overret_hch;
- linear_extrude(height=total_len, convexity=100) GappingSection();
- linear_extrude(height=retaining_len, convexity=100) WithRetainSection();
- translate([0,0, bs1]) linear_extrude(height= total_len - bs1)
- BasicSection();
- translate([0,0, bs1+0.1]) mirror([0,0,1]) {
- intersection_for (sl=[0,1]) {
- multmatrix([[1,0,0,0],
- [0,1,sl,0],
- [0,0,1,0],
- [0,0,0,1]])
- linear_extrude(height= overret_gaplen + 10, convexity=100)
- BasicSection();
- }
+}
+
+module LeverSectBot(inadj=false){
+ P6 = inadj ? P6a : P6t;
+ mirror([0,1]) {
+ LeverSect(false, inadj);
+ PsHull([P5,P6,P7]);
+ PsHull([P8b,P8eb,P9eb,P9b]);
+ Ribbles(P8eb[0],
+ P9b[0],
+ P8eb[1]);
+ translate([pivot_x,0]) circle(r=pivot_r, $fn=20);
}
}
module Demo(){
- color("red") translate([0,0,-3]) BasicSection();
- color("blue") translate([0,0,3]) WithRetainSection();
+ translate([0,0,-5]) color("white") ExtrusionSect();
+ LeverSectTop();
+ translate([0,0,5]) LeverSectBot();
+ color("black") LeverSectBot(true);
+ color("blue") translate([0,0,10]) StrapSectTop();
+ color("purple") translate([0,0,-10]) StrapSectBot();
+}
+
+module SomeLever() {
+ // SomeLever(){ LeverBot(inadj); LeverSectBot(); }
+ difference(){
+ linear_extrude(height=width, convexity=100) children(0);
+ for (i = [ 0 : nstraps - 1 ]) {
+ translate([0,0, (i + 0.5) / nstraps * width - strap_width/2])
+ linear_extrude(height=strap_width, convexity=10)
+ children(1);
+ }
+ }
}
module Test(){
- linear_extrude(height=2) {
- WithRetainSection();
- translate([0, -handle_y0 + topprotr_y + 10])
- BasicSection();
+ linear_extrude(height=test_width, convexity=100) {
+ translate([0,2,0]) LeverSectTop();
+ LeverSectBot();
+ translate([0,kit_adj_shift]) LeverSectBot(true);
}
}
+module LeverTop(){ ////toplevel
+ SomeLever(){
+ LeverSectTop();
+ StrapSectTop();
+ }
+}
+module LeverBot(){ ////toplevel
+ SomeLever(){
+ LeverSectBot();
+ StrapSectBot();
+ }
+}
+module LeverBotAdj(){ ////toplevel
+ SomeLever(){
+ LeverSectBot(true);
+ StrapSectBot(true);
+ }
+}
+
+module Kit(){ ////toplevel
+ translate([0,2,0]) LeverTop();
+ LeverBot();
+}
+
+module KitAdj(){ ////toplevel
+ translate([0,2,0]) LeverTop();
+ LeverBotAdj();
+}
+
+//LeverSectBot(true);
//Demo();
-//HandleSection();
-//InsertSection();
-//WithRetainSection();
-//BasicSection();
-//GappingSection();
-Test();
-//Demo();
-//Handle();
+//LeverTop();
+//Test();
+//Kit();
+//KitAdj();
~ianmdlvl / reprap-play.git / blobdiff