function deg2rad(deg) = deg/360 * tau;
function rad2deg(rad) = rad/tau * 360;
-module SplitPin(w=1.5, holeminrad=4, thick=3, deviationrad=1.5,
- mainlen=20, handlerad=10, handlelen=7){
- spare = holeminrad - deviationrad - w;
+module SplitPin(w=1.5, holeminrad=2.50, thick=3, deviationrad=1.5,
+ mainlen=15, handlerad=20, handlelen=12) {
+ spare = holeminrad*2 - deviationrad - w*2;
echo("splitpin spare",spare);
%translate([0,mainlen+handlelen,0]) cylinder(r=spare, h=thick);
%translate([0,mainlen,thick/2]) rotate([90,0,0])
cylinder(r=holeminrad, h=thick);
- bent_x0 = w*1.5;
- bent_x1 = holeminrad;
- bent_dx = bent_x1 - bent_x0;
- bent_y1 = mainlen;
- bent_dy = bent_y1;
- bent_rad = (bent_dy / bent_dx) * bent_dy;
- bent_subang = atan(bent_dx / bent_dy);
- actual_mainlen = bent_rad * deg2rad(bent_subang);
-
+ bent_dx = holeminrad;
unbent_dx = bent_dx + deviationrad;
- unbent_subang = atan(unbent_dx / actual_mainlen);
- unbent_rad = actual_mainlen / deg2rad(unbent_subang);
- main_cx = w*1.5 + unbent_rad;
+ unbent_subang = atan(unbent_dx / mainlen);
+ unbent_rad = mainlen / deg2rad(unbent_subang);
+
+ corner_x = unbent_rad * (1 - cos(unbent_subang));
+ corner_y = unbent_rad * sin(unbent_subang);
+
+ main_cx = unbent_rad;
- for (xmir=[0,1]) mirror([xmir,0,0]) {
- linear_extrude(height=thick) {
+// translate([w*1.5, 0, 0]) {
+// translate([corner_x, corner_y, 10]) %cube([10,10,10]);
+// translate([bent_dx, 0, 10]) %cube([10,10,10]);
+// translate([unbent_dx, 5, 10]) %cube([10,10,10]);
+// }
+
+ linear_extrude(height=thick) {
+ for (xmir=[0,1]) mirror([xmir,0,0])
FlatArc(0,0, w*0.5, w*1.5, 270-1,360);
+ translate([w*1.5, 0, 0]) {
FlatArc($fa=1, main_cx,0, unbent_rad, unbent_rad+w,
180-unbent_subang, 180);
- translate([unbent_rad * (1 - cos(unbent_subang)) + w*1.5,
- unbent_rad * sin(unbent_subang)])
- rotate([0,0,-unbent_subang]) {
- translate([-(w + deviationrad), -0.1])
+ translate([corner_x, corner_y]) rotate([0,0,-unbent_subang]) {
+ rotate([0,0,10])
+ translate([w*0.2,0,0])
+ translate([-(w + deviationrad), -0.1])
square(size=[w + deviationrad, w+0.1]);
FlatArc(-deviationrad + handlerad, w,
handlerad, handlerad+w,
- 180-rad2deg(handlelen/handlerad), 180);
+ 180-rad2deg(handlelen/handlerad), 180+rad2deg(w/handlerad),
+ $fa=0.25, $fn=60);
+ }
+ }
+ mirror([1,0,0]) translate([w*1.5, 0, 0])
+ FlatArc($fa=1, main_cx,0, unbent_rad, unbent_rad+w,
+ 180-(unbent_subang + rad2deg((handlelen+w)/unbent_rad)), 180);
+ }
+}
+
+module SplitPinCavity(w=1.5, holeminrad=2.50, thick=3, deviationrad=1.5,
+ mainlen=15, slop=0.5, insertby = 5) {
+ smallgap2 = holeminrad;
+ biggap2 = smallgap2 + deviationrad + slop;
+ toegap2 = w*1.5 + slop;
+ toeend = -mainlen-insertby;
+
+ translate([0,thick/2,0]) rotate([90,0,0]) {
+ linear_extrude(height = thick + slop*2) {
+ for (xmir=[0,1]) mirror([xmir,0]) {
+ polygon([[-0.1, 1],
+ [(smallgap2+biggap2)/2, 1],
+ [smallgap2, -insertby],
+ [biggap2, -insertby],
+ [toegap2, toeend-1],
+ [-0.1, toeend-1]]);
}
}
}
}
SplitPin();
+translate([0,15+5,-10])
+ rotate([-90,0,0])
+ SplitPinCavity();