covertopwingbase = 20;
coveredge = 3;
+holesize = 12.5;
+holestrut = 7;
+holeedge = 4;
+
+holeoffx = 0.45;
+holeoffy = 0.25;
+
+pegstem = 3.5;
+peghead = 10;
+pegstemheight = 2;
+pegheight = 9;
+peglen = 12;
+
+recessblockwidth = peghead + pegstem*3;
+recessblockheight = peglen/2 + pegstem*1.5;
+
+pegsloph = 0.5;
+pegslopv = 0.5;
+pegslopl = 0.5;
+
+pegdepthproportion = 0.80;
+
// computed
side = minsidein + screwcsinkdia + minsideout;
totaldepth = front + maxhandledepth + back;
minx = minkx - side;
maxx = maxkx + side;
+holepitch = holesize+holestrut;
+
+pegrecess = pegdepthproportion*totaldepth - 0.5*peglen;
+
module ImportTemplate(w,k,t) {
fn = str("knifeblock-knives-t",k,t,".dxf");
echo(fn);
cylinder(r=screwcsinkdia/2 / (sqrt(3)/2), h=100, $fn=6);
}
+module PegTemplate(){
+ for (mx=[0,1]) for (my=[0,1]) {
+ mirror([mx,0,0]) mirror([0,my,0])
+ polygon([[-0.1, -0.1],
+ [pegstem/2, -0.1],
+ [pegstem/2, pegstemheight/2],
+ [peghead/2, pegheight /2],
+ [-0.1, pegheight /2]]);
+ }
+}
+
+module AtSides(){
+ translate([minx,0,0]) child(0);
+ translate([maxx,0,0]) mirror([1,0,0]) child(1);
+}
+
+module BlockPegSlot(){
+ translate([recessblockwidth/2, pegrecess - 0.5*peglen, -height]){
+ rotate([-90,0,0]) linear_extrude(height=totaldepth){
+ PegTemplate();
+ }
+ }
+}
+
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);
+ mirror([0,0,1]) {
+ translate([minx, -front, 0])
+ cube([maxx-minx, totaldepth, height]);
}
for (x=[minx + sidemidx, maxx - sidemidx]) {
translate([x, 0, -screwabove])
for (yshift=[-1,1])
translate([0, yshift * frontbackslop, 0])
DoKnives();
+ AtSides() { BlockPegSlot(); BlockPegSlot(); }
}
}
[minx, covershortlen]]);
}
-module CoverSide(xpos, len){
- translate([xpos, 0 ,0])
- rotate([90,0,90])
- linear_extrude(height=coverside)
+module CoverSide(len){
+ translate([0, 0 ,0]) {
+ rotate([90,0,90])
+ linear_extrude(height=coverside)
polygon([[0, 0],
[0, totaldepth],
[covertopwing, totaldepth],
[len - covertopwing, totaldepth],
[len, totaldepth],
[len, 0]]);
-// }
+ cube([recessblockwidth, recessblockheight, totaldepth]);
+ }
+}
+
+module Peg(){
+ echo("peg angle slope (must be <1)",
+ (peghead-pegstem)/(pegheight-pegstemheight));
+ dx = pegsloph;
+ dy = pegslopv;
+ rotate([90,0,0]) {
+ linear_extrude(height=peglen-pegslopl) {
+ intersection(){
+ translate([-dx,-dy,0]) PegTemplate();
+ translate([-dx,+dy,0]) PegTemplate();
+ translate([+dx,+dy,0]) PegTemplate();
+ translate([+dx,-dy,0]) PegTemplate();
+ }
+ }
+ }
+}
+
+module CoverPegSlot(coverlen){
+ translate([recessblockwidth/2, 0, -1]){
+ linear_extrude(height= 1 + pegrecess + 0.5*peglen){
+ PegTemplate();
+ }
+ }
+}
+
+module HoleRow(){
+ for (i=[0:10]) {
+ translate([0, (i+0.5)*holepitch, -1])
+ cylinder(r=holesize/2, h=coverthick+2, $fn=20);
+ }
+}
+
+module HolesScope(){
+ intersection_for (dx=[-1,+1]) {
+ intersection_for (dy=[-1,+1]) {
+ translate([dx * holeedge, dy * holeedge, -1])
+ scale([1,1,2])
+ CoverTemplate();
+ }
+ }
+}
+
+module Holes(){
+ intersection(){
+ translate([holeoffx * holepitch, holeoffy * holepitch, 0]) {
+ for (i=[-10:10]) {
+ translate([i * sqrt(3) * holepitch, 0, 0]) {
+ HoleRow();
+ translate([sqrt(3)/2 * holepitch, -0.5 * holepitch, 0])
+ HoleRow();
+ }
+ }
+ }
+ HolesScope();
+ }
+}
+
+module CoverCover(){
+ difference(){
+ CoverTemplate();
+ Holes();
+ }
}
module Cover(){
- CoverTemplate();
- CoverSide(minx, covershortlen);
- CoverSide(maxx-coverside, coverlonglen);
+ difference(){
+ union(){
+ CoverCover();
+ AtSides() { CoverSide(covershortlen); CoverSide(coverlonglen); }
+ }
+ AtSides() { CoverPegSlot(); CoverPegSlot(); }
+ }
}
module CoverAligned(){
Cover();
}
+module DemoPeg(){
+ translate([recessblockwidth/2, pegrecess, -height])
+ Peg();
+}
+
module Demo(){ ////toplevel
%Block();
DoKnives();
color([0,0,1]) CoverAligned();
+ color([1,0,0]) AtSides() { DemoPeg(); DemoPeg(); }
+}
+
+module CoverParts(){ ////toplevel
+ Cover();
+ translate([0, coverlonglen, pegheight/2]) {
+ Peg();
+ translate([-peghead-3, 0,0]) Peg();
+ }
}
-Demo();
+//Block();
+//Demo();
+//Cover();
+//CoverParts();
+//Peg();
//Cover();