prop_taper_len = 6;
prop_main_width = 3;
prop_side_gap = 0.75; // each side
+prop_lidrecess_behind = 0.75;
prop_caserecess_behind = 0.75;
prop_caserecess_taper = 0.35; // one side only
prop_prop_gap = 0.5;
-prop_prong_heel_slope = 1.0;
+prop_prong_heel_slope = 0.5;
// ---------- calculated ----------
prl_r10 = prop_end_dia/2;
prl_r10o = prl_r10 + prop_recess_slop;
-prlp10 = lpp10 + [1,1] * prl_r10o;
+prlp10 = lpp10 + [1,1] * prl_r10o
+ + [1,0] * prop_lidrecess_behind
+ + [0,1] * prop_recess_under;
// prop
theta = 90 - alpha;
beta = 180 - alpha - gamma;
psi = 90 - beta + atan(prop_caserecess_taper);
- prpv1 = [ sin(psi), cos(psi) ];
+
+ echo("abc", a,b,c);
+
+ v1 = [ [ cos(psi), -sin(psi) ], // x
+ [ sin(psi), cos(psi) ] ]; // y
prpp7 = [0, c + (lpp13[1] - prpp10[1]) ];
prpp1 = prpp7 + [1,0] *
// this is approximate, but will do
- (prop_main_th/2 + prop_prop_gap + prcp1[0] - prcp1[1]);
- prpp3 = prpp1 + [ -prp_r1,
- (prcp2[1] - prcp1[1]) - prop_prop_gap ];
+ (prop_main_th/2 + prop_prop_gap + prcp1[0] - epp4[0]);
+ prpp3 = prpp1 +
+ v1[0] * -prp_r1 +
+ v1[1] * ((prcp2[1] - prcp1[1]) - prop_prop_gap);
+ prpp12 = prpp3 + v1[0] *
+ (prop_end_dia + prop_caserecess_taper * (prpp1[1] - prpp3[1]));
+ prp_r8 = prop_main_th;
prpp4 = [ prop_main_th/2, prpp3[1] ];
- prp_r5 = prop_end_dia/2;
- prpp5 = [ prpp1[0], prpp3[1] - prop_prong_h + prp_r5 ];
+ prp_r5 = prp_r8;
+ prpp5 = [ prpp12[0] - prp_r5,
+ prpp3[1] - prop_prong_h + prp_r5 ];
prpp6 = prpp4 + [0,-1] * (prop_prong_h +
prop_prong_heel_slope * (prpp5[0] - prpp4[0]));
- prp_r8 = prop_main_th/2;
prpp8 = prpp4 + [0,-1] * prp_r8;
prpp9 = prpp8 + [-1,0] * prp_r8;
- prpp12 = prpp3 + [0,1] * prop_end_dia;
+
+ //#circleat(prpp3,1);
+ //#circleat(prpp12,1);
if (!cut) {
hull(){
translate(prpp8)
intersection(){
circle(prp_r8);
- rectfromto([-20,-0], [20,20]);
+ polygon([[-20,-0], [0,0], [20,20]]);
}
rectfromto(prpp6, prpp9);
- circleat(prpp5, prp_r5);
+ translate(prpp5) intersection(){
+ circle(prp_r5);
+ polygon([[-10,-10], [0,0], [10,0]]);
+ }
rectfromto(prpp12 + [0,-0.1], prpp3);
}
- hull(){
+ %hull(){
circleat(prpp1, prp_r1);
rectfromto(prpp12 + [0,-0.1], prpp3);
}
}
+ // main shaft
rotate([0,0, cut ? -theta : 0]){
hull(){
extra = cut ? prop_recess_slop : 0;
}
translate([40,-30]) {
- %LidEdgeProfile();
- PropProfile(10, 0);
+ difference(){
+ %LidEdgeProfile();
+ //translate(prlp10)
+ //PropProfile(10, 1);
+ }
+ translate(prlp10)
+ PropProfile(60, 0);
}
}