3 include <commitid.scad>
10 front_hex_stride = 20;
18 eclip_inner_rad = 2.5;
20 eclip_prong_th = 2.25;
21 eclip_outer_strt = 0.5;
22 eclip_inner_xstrt = 0.5;
25 eclip_base_epsilon = 0.5;
28 eclip_each_every = 29;
34 test_len = eclip_each_len + eclip_each_every*(test_eclips-1);
42 eclip_inner_strt = eclip_outer_strt + eclip_inner_xstrt;
45 r1 = r0 + eclip_gap_rad;
46 r2 = r1 + eclip_prong_th;
47 r2e = r1 + eclip_base_epsilon;
49 ppxl = -(r0 / sqrt(2)) + (eclip_inner_strt / sqrt(2));
53 eclip_base_offset = r1;
54 eclip_wall_offset = -ppxl;
56 eclip_ra_offset = r2 - 0.1;
58 eclip_recept_height = r2;
60 eclip_rhs_offset = ppxl + rgap + eclip_prong_th;
61 // does not include main_th
65 module EclipLPlanCore(alpha){
66 FArcSegment(0,0, r1,r2,
67 180-eclip_ult_angle, eclip_ult_angle-alpha +1);
73 rotate(-alpha) mirror([1,1]) square([r2e, 50]);
75 rotate(-alpha) mirror([1,1]) square([r2e, r2]);
81 module EclipRPlan(alpha, main_th){
84 translate([ppxl + main_th + rgap, -r2*2])
85 square([eclip_prong_th, r2*(2 + 1/sqrt(2))]);
86 translate([-r2, -r2e])
87 square([r2*3, eclip_base_epsilon + r2*4]);
91 module EclipLPlan(alpha){
92 rotate(alpha) EclipLPlanCore(alpha);
95 module EclipPPlan(main_th){
99 rotate(90-eclip_ult_angle) square([r0,r0]);
101 translate([-(r0+.1), -(r0+.1)])
102 square([(r0+.1) + main_th + ppxl, r2*2]);
104 translate([ppxl, 0]) square([main_th, r2]);
107 module TestBase(){ ////toplevel
108 translate([0,0, eclip_base_offset]){
109 for (i=[1 : 2: test_eclips-2]) {
110 translate([0, i*eclip_each_every])
112 linear_extrude(height=eclip_each_len)
113 EclipLPlan(test_alpha);
115 for (j=[0 : 2: test_eclips-1]) {
116 translate([0, j*eclip_each_every])
118 linear_extrude(height=eclip_each_len)
119 EclipRPlan(test_alpha, test_main_th);
122 translate([-r2, -eclip_each_len, -test_base_th]){
127 mirror([0,0,1]) Commitid_BestCount_M([r2*2, test_len]);
132 module TestProtr(){ ////toplevel
134 translate([0,0, test_main_th - eclip_wall_offset])
136 linear_extrude(height=test_len)
137 EclipPPlan(test_main_th);
138 mirror([0,0,1]) Commitid_BestCount_M([test_len, r2]);
142 module TestRAProtr(){ ////toplevel
143 rotate([-90,0,0]) TestProtr();
145 translate([-test_len,
147 -(eclip_ra_offset + test_base_th)])
153 module TestPlanDemo(){
154 color("red") EclipLPlan(test_alpha);
155 color("blue") rotate(test_alpha) EclipPPlan(test_main_th);
156 color("green") EclipRPlan(test_alpha, test_main_th);
159 beta = asin(front_setback / front_height);
161 uf = [-sin(beta), cos(beta)];
162 ur = [ -uf[1], uf[0]];
165 pq = pp + uf*front_height + ur*eclip_ra_offset;
166 pr = [ pq[0] - eclip_base_offset - eclip_wall_offset,
169 echo("uf ur P Q R", uf, ur, pp, pq, pr);
172 polygon([pq, pp, pr]);
175 thicks = [ base_thick, front_thick, back_thick ];
177 module Joins(alpha, objnum, objnum_f, objnum_m) {
178 pitch = (front_width - eclip_each_len) / (num_eclips-1);
180 thm = thicks[objnum_m];
181 stride = (front_width - eclip_each_len) / (num_eclips-1);
183 if (objnum==objnum_f) {
184 for (i=[ 1 : 2 : num_eclips-1 ]) {
185 translate([0, i*stride + eclip_each_len, 0]) {
187 linear_extrude(height=eclip_each_len)
191 for (i=[ 0 : 2 : num_eclips-1 ]) {
192 translate([0, i*stride + eclip_each_len, 0]) {
194 linear_extrude(height=eclip_each_len)
195 EclipRPlan(alpha, thm);
199 if (objnum==objnum_m)
202 linear_extrude(height=front_width)
207 function r3(pc) = [ pc[0], 0, pc[1] ];
209 module ObjectJoins(objnum){
210 translate(r3(pp)) Joins(beta, objnum, 0,1);
211 translate(r3(pr)) mirror([1,0,0]) Joins(0, objnum, 0,2);
212 translate(r3(pq)) rotate([0,90,0]) mirror([1,0,0]) Joins(-beta, objnum, 2,1);
216 xmin = pr[0] - eclip_rhs_offset - thicks[2];
217 xmax = pp[0] + eclip_rhs_offset + thicks[1]
218 + eclip_prong_th * (1/cos(beta) - 1)
219 + eclip_base_offset * tan(beta);
231 -eclip_base_offset - thicks[0]])
237 module FrontPattern(){
238 totalh = front_height - eclip_wall_offset + thicks[1];
240 ystride = front_hex_stride;
241 xstride = front_hex_stride * cos(30) * 2;
243 square([front_width, totalh]);
245 translate([xi * xstride, 0])
247 translate([0, yi * ystride])
249 [xstride/2, ystride/2]
252 circle(r= front_hex_dia/2, $fn=6);
258 rotate([0, 90-beta, 0])
259 translate([0, 0, ppxl])
261 linear_extrude(height=thicks[1])
270 zmax = pq[1] + eclip_prong_th;
271 height = zmax - zmin;
273 translate([pr[0] + eclip_wall_offset - thicks[2],
281 translate([back_pillarw,
284 cube([front_width - back_pillarw*2,
285 height - eclip_recept_height*2 - eclip_prong_th,
293 color("blue") Front();
294 color("black") Back();