// -*- C -*-
+// properties of the knives
nknives = 3;
-
widths = [15.5, 15.8, 19.0];
+handlelenbase = 75;
+handlelendelta = [-15, 0, 10];
+locations = [-35, 0, 40];
+bladew = 5; // 2.5
+maxhandledepth = 45;
-handlelenbase = 60;
-handlelendelta = [-10, 0, 0];
+templatescale = 27.2 / 19.6;
-locations = [-35, 0, 40];
+coverlonglen = 120; // xxx
+covershortlen = 70; // xxx
-bladew = 5; // 2.5
+// other tuneables
+front = 5;
+back = 5;
+height = 50;
+minsidein = 4;
+minsideout = 4;
+
+frontbackslop = 0.25;
+
+screwbackdepth = 6.0 - 1.0;
+screwdia = 4.0 + 0.5;
+screwcsinkdia = 9.8 + 1.0;
+
+screwabove = 15;
+coverthick = 2.4;
+coverside = coverthick;
+
+covertopwing = 15;
+covertopwingbase = 20;
+coveredge = 3;
+
+// computed
+side = minsidein + screwcsinkdia + minsideout;
+totaldepth = front + maxhandledepth + back;
+
+minkx = locations[0] - widths[0] /2;
+maxkx = locations[nknives-1] + widths[nknives-1]/2;
+
+minx = minkx - side;
+maxx = maxkx + side;
module ImportTemplate(w,k,t) {
fn = str("knifeblock-knives-t",k,t,".dxf");
echo(fn);
translate([0,0, -w/2])
linear_extrude(height=w)
- import(file=fn, convexity=100);
+ scale(templatescale) import(file=fn, convexity=100);
}
module Knife(k){
DoKnife(k);
}
-DoKnives();
+module ScrewHole(){
+ translate([0,-50,0])
+ rotate([-90,0,0])
+ cylinder(r=screwdia/2, h=150, $fn=40);
+ translate([0, totaldepth-front - screwbackdepth, 0])
+ rotate([90,0,0])
+ cylinder(r=screwcsinkdia/2 / (sqrt(3)/2), h=100, $fn=6);
+}
+
+module Block(){
+ sidemidx = minsideout + screwcsinkdia/2;
+
+ difference(){
+ hull() mirror([0,0,1]) {
+ translate([minx, 0, 0])
+ cube([maxx-minx, totaldepth-front, height]);
+ for (x=[minx + front/2, maxx - front/2])
+ translate([x, -front/2, 0])
+ cylinder(r=front/2, h=height, $fn=30);
+ }
+ for (x=[minx + sidemidx, maxx - sidemidx]) {
+ translate([x, 0, -screwabove])
+ ScrewHole();
+ }
+ for (yshift=[-1,1])
+ translate([0, yshift * frontbackslop, 0])
+ DoKnives();
+ }
+}
+
+module BlockPrint(){ ////toplevel
+ rotate([0,0,90])
+ Block();
+}
+
+module CoverTemplate(){
+ linear_extrude(height=coverthick)
+ polygon([[minx, 0],
+ [maxx, 0],
+ [maxx, coverlonglen],
+ [maxx - coverside, coverlonglen],
+ [minx, covershortlen]]);
+}
+
+module CoverSide(xpos, len){
+ translate([xpos, 0 ,0])
+ rotate([90,0,90])
+ linear_extrude(height=coverside)
+ polygon([[0, 0],
+ [0, totaldepth],
+ [covertopwing, totaldepth],
+ [covertopwingbase, coverside + coverthick],
+ [len - covertopwingbase, coverside + coverthick],
+ [len - covertopwing, totaldepth],
+ [len, totaldepth],
+ [len, 0]]);
+// }
+}
+
+module Cover(){
+ CoverTemplate();
+ CoverSide(minx, covershortlen);
+ CoverSide(maxx-coverside, coverlonglen);
+}
+
+module CoverAligned(){
+ translate([0,-front,-height])
+ rotate([-90,0,0])
+ Cover();
+}
+
+module Demo(){ ////toplevel
+ %Block();
+ DoKnives();
+ color([0,0,1]) CoverAligned();
+}
+
+Demo();
+//Cover();