8 hinge_pin = 1.8 + 0.75;
13 screw_head = 8.7 + 1.2;
14 screw_nut_across = 7.9 + 0.75;
15 screw_nut_th = 3.9 + 0.75;
16 screw_head_h = 3.6 + 0.75;
18 knob_behind_across = 12.2 + 0.75;
38 bank_eps_bbox_x = [149, 598];
39 bank_eps_bbox_y = [274, 1452];
41 bank_y_sz = 102.25 + 0.50;
42 bank_x_sz = (26.0 + 0.5);
48 retainer_walls = [18, 30];
50 bank_profile_scale_bodge = 1.0;
52 bank_input_ctr = [ 12.5, 11.5 ]; // from nearest corner
53 bank_input_sz = [ 8.5, 10.5 ];
57 straps_y = [ -bank_y_sz * 0.25,
62 bank_recess_dx = minor_wall_min;
64 pspt_to_mm = 25.4 / 72;
66 hinge_stride = (clamp_width + hinge_gap_z) / hinge_lobes;
68 main_r = tube_dia/2 + main_th;
70 hinge_outer_r = hinge_around + hinge_pin/2;
71 hinge_y = tube_dia/2 + hinge_outer_r;
73 screw_max_y_lhs = -main_r -screw_nut_across/2;
74 screw_max_y_rhs = -main_r -knob_behind_across/2;
76 screw_y = min(screw_max_y_lhs,
79 bot_y = screw_y -max( screw_nut_across, knob_behind_across/2 )
82 holder_x_sz = bank_x_sz + bank_recess_dx*2;
83 bank_bot_y = strap_above + strap_th;
88 module TubePlan(){ circle(r = tube_dia/2); }
89 module HingePinPlan(){ translate([0, hinge_y]) circle(r= hinge_pin/2); }
90 module HingeBodyPlan(){ translate([0, hinge_y]) circle(r= hinge_outer_r); }
92 module TubeClampLeftPlan(){
95 polygon([[ 0, hinge_y + hinge_outer_r ],
96 [ -main_r + overlap_l, hinge_y + hinge_outer_r ],
97 [ -main_r + overlap_l, bot_y ],
98 [ -clamp_gap/2, bot_y ],
109 module TubeClampLeft() { ////toplevel
110 linextr(-clamp_width/2, clamp_width/2)
114 module TubeClampRightPlan(){
117 rectfromto([ clamp_gap/2, bot_y ],
118 [ clamp_gap/2 + behind_knob_th, 0 ]);
124 rectfromto([ clamp_gap/2, main_r*5 ],
135 module SomeClamp(hinge_alt=false){
137 linextr(-clamp_width/2, clamp_width/2)
140 linextr_x_yz(-main_r*5, main_r*5)
141 translate([screw_y, 0])
144 for (i=[0 : hinge_lobes-1]) {
147 -clamp_width/2 + i * hinge_stride
148 + (hinge_alt ? hinge_stride/2 : 0)
150 linextr(-hinge_gap_z, hinge_stride/2)
151 square(hinge_outer_r*2 + hinge_gap_xy, center=true);
156 module PowerBankItselfSidePlan(){
157 translate([0, bank_bot_y])
158 scale( bank_profile_scale_bodge *
163 translate(pspt_to_mm *
164 [-0.5 * (bank_eps_bbox_x[0] +
166 -bank_eps_bbox_y[0]])
167 import("powerbank-anker-10000.dxf", convexity=5);
170 module PowerBankItself(){ ////toplevel
172 linextr_y_xz(-bank_y_sz/2,
174 PowerBankItselfSidePlan();
177 module PowerBankSidePlan(){ ////toplevel
178 render() difference(){
179 rectfromto([ -holder_x_sz/2, 0 ],
180 [ +holder_x_sz/2, bank_recess_y + bank_bot_y ]);
182 PowerBankItselfSidePlan();
186 module PowerBankStrapCut(){ ////toplevel
188 rectfromto([ -holder_x_sz, -0.05 ],
189 [ +holder_x_sz, strap_th + strap_r ]);
192 translate([sx * (holder_x_sz/2 - strap_r + 0.1),
200 module PowerBankHolderTest(){ ////toplevel
202 linextr(-1,5) PowerBankSidePlan();
203 linextr(0, strap_th) PowerBankStrapCut();
207 module EndRetainer(depth){ ////toplevel
208 translate([0, -bank_y_sz/2, 0]) {
209 linextr_y_xz(-endwall_th, 0)
210 rectfromto([ 0, -holder_x_sz/2 ],
211 [ -depth, +holder_x_sz/2 ]);
215 linextr(-holder_x_sz/2, -bank_x_sz/2){
217 rectfromto([ 0, -endwall_th ],
228 module PowerBankHolder(){ ////toplevel
232 linextr_y_xz(-(bank_y_sz/2 + 0.1),
233 +(bank_y_sz/2 + 0.1))
236 EndRetainer(retainer_walls[0]);
237 mirror([0,1,0]) EndRetainer(retainer_walls[1]);
240 for (strap_y = straps_y)
241 translate([0, strap_y, 0])
248 translate([ bank_bot_y, -bank_y_sz/2, -bank_x_sz/2 ])
251 translate(bank_input_ctr)
252 square(center=true, bank_input_sz);
256 module TubeClampLeft() { ////toplevel
257 // We want this to print with the recess overhand to the right
258 // where the workpiece cooling fan is
264 translate([0, screw_y, 0]) {
265 linextr_x_yz(-(clamp_gap/2 + screw_nut_th), 0)
266 square([screw_nut_across,
267 screw_nut_across / cos(30) + bridge_slop*2],
270 linextr_x_yz(-main_r, -main_r + screw_head_h)
271 square([screw_head, screw_head + bridge_slop*2],
278 module TubeClampRight() { ////toplevel
282 TubeClampRightPlan();
285 module TubeClampDemo() { ////toplevel