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;
17 knob_behind_across = 12.2 + 0.75;
37 bank_eps_bbox_x = [149, 598];
38 bank_eps_bbox_y = [274, 1452];
40 bank_y_sz = 102.25 + 0.50;
41 bank_x_sz = (26.0 + 0.5);
47 retainer_walls = [18, 30];
49 bank_profile_scale_bodge = 1.0;
51 bank_input_ctr = [ 12.5, 11.5 ]; // from nearest corner
52 bank_input_sz = [ 8.5, 10.5 ];
54 mounted_pos_y_offset = 20;
63 straps_y = [ -bank_y_sz * 0.25,
66 screw_head_behind = main_th;
69 bank_recess_dx = minor_wall_min;
71 pspt_to_mm = 25.4 / 72;
73 main_r = tube_dia/2 + main_th;
75 screw_max_y_lhs = -main_r -screw_nut_across/2;
76 screw_max_y_rhs = -main_r -knob_behind_across/2;
78 screw_y = min(screw_max_y_lhs,
81 bot_y = screw_y -max( screw_nut_across, knob_behind_across/2 )
84 holder_x_sz = bank_x_sz + bank_recess_dx*2;
85 bank_bot_y = strap_above + strap_th;
88 brace_total_len = brace_len + main_th;
89 brace_ctrs_y = [ straps_y[0] - (brace_r + strap_r/2),
90 straps_y[1] + (brace_r + strap_r/2) ];
92 clamp_width_actual = max(clamp_width, 0);
94 hinge_stride = (clamp_width_actual + hinge_gap_z) / hinge_lobes;
96 hinge_outer_r = hinge_around + hinge_pin/2;
97 hinge_y = tube_dia/2 + hinge_outer_r;
101 module TubePlan(){ circle(r = tube_dia/2); }
102 module HingePinPlan(){ translate([0, hinge_y]) circle(r= hinge_pin/2); }
103 module HingeBodyPlan(){ translate([0, hinge_y]) circle(r= hinge_outer_r); }
105 module TubeClampLeftPlan(){
108 polygon([[ 0, hinge_y + hinge_outer_r ],
109 [ -(main_r + overlap_l), hinge_y + hinge_outer_r ],
110 [ -(main_r + overlap_l), bot_y ],
111 [ -clamp_gap/2, bot_y ],
112 [ -clamp_gap/2, 0, ],
122 module TubeClampLeft() { ////toplevel
123 linextr(-clamp_width_actual/2, clamp_width_actual/2)
127 module TubeClampRightPlan(){
130 rectfromto([ clamp_gap/2, bot_y ],
131 [ clamp_gap/2 + behind_knob_th, 0 ]);
137 rectfromto([ clamp_gap/2, main_r*5 ],
149 linextr_x_yz(-main_r*5, main_r*5)
150 translate([screw_y, 0])
153 translate([0, screw_y, 0]) {
154 linextr_x_yz(-(clamp_gap/2 + screw_nut_th), 0)
155 square([screw_nut_across,
156 screw_nut_across / cos(30) + bridge_slop*2],
160 -(clamp_gap/2 + screw_nut_th + screw_head_behind))
161 square([screw_head, screw_head + bridge_slop*2],
166 module SomeClamp(hinge_alt=false){
168 linextr(-clamp_width_actual/2, clamp_width_actual/2)
173 for (i=[0 : hinge_lobes-1]) {
176 -clamp_width_actual/2 + i * hinge_stride
177 + (hinge_alt ? hinge_stride/2 : 0)
179 linextr(-hinge_gap_z, hinge_stride/2)
180 square(hinge_outer_r*2 + hinge_gap_xy, center=true);
185 module PowerBankItselfSidePlan(){
186 translate([0, bank_bot_y]){
188 circle($fn=8, r=liner_th);
189 scale( bank_profile_scale_bodge *
194 translate(pspt_to_mm *
195 [-0.5 * (bank_eps_bbox_x[0] +
197 -bank_eps_bbox_y[0]])
198 import("powerbank-anker-10000.dxf", convexity=5);
203 module PowerBankItself(){ ////toplevel
205 linextr_y_xz(-bank_y_sz/2,
207 PowerBankItselfSidePlan();
210 module PowerBankSidePlan(){ ////toplevel
211 render() difference(){
212 rectfromto([ -holder_x_sz/2, 0 ],
213 [ +holder_x_sz/2, bank_recess_y + bank_bot_y ]);
215 PowerBankItselfSidePlan();
219 module PowerBankStrapCut(){ ////toplevel
221 rectfromto([ -holder_x_sz, -0.05 ],
222 [ +holder_x_sz, strap_th + strap_r ]);
225 translate([sx * (holder_x_sz/2 - strap_r + 0.1),
233 module PowerBankHolderTest(){ ////toplevel
235 linextr(-1,5) PowerBankSidePlan();
236 linextr(0, strap_th) PowerBankStrapCut();
240 module EndRetainer(depth){ ////toplevel
241 translate([0, -bank_y_sz/2, 0]) {
242 linextr_y_xz(-endwall_th, 0)
243 rectfromto([ 0, -holder_x_sz/2 ],
244 [ -depth, +holder_x_sz/2 ]);
248 linextr(-holder_x_sz/2, -bank_x_sz/2){
250 rectfromto([ 0, -endwall_th ],
261 module BraceTubePlan(){
264 rectfromto(brace_r * [-2, 0],
269 module PowerBankHolder(){ ////toplevel
273 linextr_y_xz(-(bank_y_sz/2 + 0.1),
274 +(bank_y_sz/2 + 0.1))
277 EndRetainer(retainer_walls[0]);
278 mirror([0,1,0]) EndRetainer(retainer_walls[1]);
281 for (strap_y = straps_y)
282 translate([0, strap_y, 0])
289 translate([ bank_bot_y, -bank_y_sz/2, -bank_x_sz/2 ])
292 translate(bank_input_ctr)
293 square(center=true, bank_input_sz);
296 translate([0,0, bank_x_sz/2]){
297 for (y = brace_ctrs_y) {
299 linextr_x_yz(0, brace_total_len)
303 translate([brace_total_len, 0,0])
304 linextr_y_xz(brace_ctrs_y[0] - brace_r,
305 brace_ctrs_y[1] + brace_r)
310 module TubeClampLeft() { ////toplevel
311 // We want this to print with the recess overhand to the right
312 // where the workpiece cooling fan is
323 module Main(){ ////toplevel
326 translate([main_r, -mounted_pos_y_offset, 0])
333 module TubeClampRight() { ////toplevel
337 TubeClampRightPlan();
340 module TubeClampDemo() { ////toplevel