3 // properties of the knives
5 widths = [15.5, 15.8, 19.0];
7 handlelendelta = [-15, 0, 10];
8 locations = [-35, 0, 40];
12 templatescale = 27.2 / 19.6;
14 coverlonglen = 120; // xxx
15 covershortlen = 70; // xxx
26 screwbackdepth = 6.0 - 1.0;
28 screwcsinkdia = 9.8 + 1.0;
33 coverside = coverthick;
36 covertopwingbase = 20;
45 recessblockwidth = peghead + pegstem*3;
46 recessblockheight = peglen + pegstem*1.5;
52 pegdepthproportion = 0.67;
55 side = minsidein + screwcsinkdia + minsideout;
56 totaldepth = front + maxhandledepth + back;
58 minkx = locations[0] - widths[0] /2;
59 maxkx = locations[nknives-1] + widths[nknives-1]/2;
64 pegrecess = pegdepthproportion*totaldepth - 0.5*peglen;
66 module ImportTemplate(w,k,t) {
67 fn = str("knifeblock-knives-t",k,t,".dxf");
69 translate([0,0, -w/2])
70 linear_extrude(height=w)
71 scale(templatescale) import(file=fn, convexity=100);
75 ImportTemplate(bladew, k,"bl");
77 ImportTemplate(widths[k], k,"hl");
79 ImportTemplate(widths[k], k,"hl");
84 translate([locations[k],0,0]){
86 translate([-(handlelenbase + handlelendelta[k]),0,0])
99 cylinder(r=screwdia/2, h=150, $fn=40);
100 translate([0, totaldepth-front - screwbackdepth, 0])
102 cylinder(r=screwcsinkdia/2 / (sqrt(3)/2), h=100, $fn=6);
105 module PegTemplate(){
106 for (mx=[0,1]) for (my=[0,1]) {
107 mirror([mx,0,0]) mirror([0,my,0])
108 polygon([[-0.1, -0.1],
110 [pegstem/2, pegstemheight/2],
111 [peghead/2, pegheight /2],
112 [-0.1, pegheight /2]]);
117 translate([minx,0,0]) child(0);
118 translate([maxx,0,0]) mirror([1,0,0]) child(1);
121 module BlockPegSlot(){
122 translate([recessblockwidth/2, pegrecess - 0.5*peglen, -height]){
123 rotate([-90,0,0]) linear_extrude(height=totaldepth){
130 sidemidx = minsideout + screwcsinkdia/2;
133 hull() mirror([0,0,1]) {
134 translate([minx, 0, 0])
135 cube([maxx-minx, totaldepth-front, height]);
136 for (x=[minx + front/2, maxx - front/2])
137 translate([x, -front/2, 0])
138 cylinder(r=front/2, h=height, $fn=30);
140 for (x=[minx + sidemidx, maxx - sidemidx]) {
141 translate([x, 0, -screwabove])
145 translate([0, yshift * frontbackslop, 0])
147 AtSides() { BlockPegSlot(); BlockPegSlot(); }
151 module BlockPrint(){ ////toplevel
156 module CoverTemplate(){
157 linear_extrude(height=coverthick)
160 [maxx, coverlonglen],
161 [maxx - coverside, coverlonglen],
162 [minx, covershortlen]]);
165 module CoverSide(len){
166 translate([0, 0 ,0]) {
168 linear_extrude(height=coverside)
171 [covertopwing, totaldepth],
172 [covertopwingbase, coverside + coverthick],
173 [len - covertopwingbase, coverside + coverthick],
174 [len - covertopwing, totaldepth],
177 cube([recessblockwidth, recessblockheight, totaldepth]);
182 echo("peg angle slope (must be <1)",
183 (peghead-pegstem)/(pegheight-pegstemheight));
187 linear_extrude(height=peglen-pegslopl) {
189 translate([-dx,-dy,0]) PegTemplate();
190 translate([-dx,+dy,0]) PegTemplate();
191 translate([+dx,+dy,0]) PegTemplate();
192 translate([+dx,-dy,0]) PegTemplate();
198 module CoverPegSlot(coverlen){
199 translate([recessblockwidth/2, 0, -1]){
200 linear_extrude(height= 1 + pegrecess + 0.5*peglen){
210 AtSides() { CoverSide(covershortlen); CoverSide(coverlonglen); }
212 AtSides() { CoverPegSlot(); CoverPegSlot(); }
216 module CoverAligned(){
217 translate([0,-front,-height])
222 module Demo(){ ////toplevel
225 color([0,0,1]) CoverAligned();