// -*- C -*- opening_height = 7.84; opening_depth = 7.88; openingedge_dia = 1.34; opening_protrh = 1.8; pivot_x = 6; inside_len = 4; pivoting_gap = 0.1; outside_gap = 3; outside_len = 16; outend_height = 3; outside_pushh = 4; outside_pushslope = 1.4; ourcirc_r = 0.5 / 2; opening_protr_slop = 0.1; intooth_top_slop = 0.1; inside_h_xgap = 1; pivot_r = 2; pivot_slop = 0.25; width = 10; // calculated inside_h = opening_height/2 - opening_protrh - inside_h_xgap/2; edge_or = openingedge_dia/2 + opening_protr_slop; Q0 = [ openingedge_dia/2, openingedge_dia/2 + opening_height/2 ]; p4p5d = [edge_or + ourcirc_r, 0]; P0 = [ pivot_x, pivoting_gap ]; P4 = Q0 - p4p5d; P3 = [ 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], P3[1] - (inside_h + ourcirc_r*2) ]; P9 = [ outside_len - ourcirc_r, outside_gap/2 + ourcirc_r ]; P8 = P9 + [ 0, outend_height - ourcirc_r*2 ]; P5 = Q0 + p4p5d; P6 = P5 + [ 0, outside_pushh - ourcirc_r*2 ]; P7 = [ P6[0] + (P6[1] - P1[1]) / outside_pushslope, P1[1] ]; 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([-opening_depth, -toph]) { difference(){ 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 LeverSect(){ PsHull([P2,P3,P4]); difference(){ PsHull([P0,P1,P2,P5,P8,P9]); translate(Q0) { hull(){ circle(r=edge_or, $fn=20); translate([0,10]) circle(r=edge_or, $fn=20); } } } } module LeverSectTop(){ difference(){ LeverSect(); translate([pivot_x,0]) circle(r= pivot_r + pivot_slop, $fn=20); } } module LeverSectBot(){ mirror([0,1]) { LeverSect(); PsHull([P5,P6,P7]); translate([pivot_x,0]) circle(r=pivot_r, $fn=20); } } module Demo(){ translate([0,0,-5]) color("white") ExtrusionSect(); LeverSectTop(); LeverSectBot(); } module LeverTop(){ linear_extrude(height=width, convexity=100) LeverSectTop(); } module LeverBot(){ linear_extrude(height=width, convexity=100) LeverSectBot(); } module Test(){ translate([0,2,0]) LeverTop(); LeverBot(); } //Demo(); Test();