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Merge branch 'martinbudden-sk_brackets_tidy'
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Chris Palmer
commit
26e8497018
14
readme.md
14
readme.md
@ -2586,21 +2586,25 @@ SK shaft support brackets
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| Module | Description |
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|:--- |:--- |
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| ```sk_bracket(type)``` | SK shaft support bracket |
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| ```sk_bracket_assembly(type, screw_length = 16, screw_type = M5_cap_screw, nut_type = undef)``` | Assembly with fasteners in place |
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| ```sk_bracket_assembly(type, part_thickness = 2, screw_type = M5_cap_screw, nut_type = undef)``` | Assembly with fasteners in place |
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| ```sk_bracket_hole_positions(type)``` | Place children at hole positions |
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### Vitamins
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| Qty | Module call | BOM entry |
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| ---:|:--- |:---|
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| 4 | ```sliding_t_nut(M5_sliding_t_nut)``` | Nut M5 sliding T |
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| 4 | ```nut(M5_nut)``` | Nut M5 x 4mm |
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| 2 | ```sliding_t_nut(M4_sliding_t_nut)``` | Nut M4 sliding T |
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| 2 | ```sliding_t_nut(M5_sliding_t_nut)``` | Nut M5 sliding T |
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| 4 | ```nut(M5_nut, nyloc = undef)``` | Nut M5 x 4mm |
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| 1 | ```sk_bracket(SK10)``` | SK10 shaft support bracket |
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| 1 | ```sk_bracket(SK12)``` | SK12 shaft support bracket |
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| 1 | ```sk_bracket(SK16)``` | SK16 shaft support bracket |
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| 1 | ```sk_bracket(SK8)``` | SK8 shaft support bracket |
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| 8 | ```screw(M5_cap_screw, 16)``` | Screw M5 cap x 16mm |
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| 12 | ```washer(M5_washer)``` | Washer M5 x 10mm x 1mm |
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| 2 | ```screw(M4_cap_screw, 16)``` | Screw M4 cap x 16mm |
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| 6 | ```screw(M5_cap_screw, 16)``` | Screw M5 cap x 16mm |
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| 2 | ```washer(M4_washer)``` | Washer M4 x 9mm x 0.8mm |
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| 10 | ```washer(M5_washer)``` | Washer M5 x 10mm x 1mm |
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<a href="#top">Top</a>
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@ -22,11 +22,12 @@ use <../utils/layout.scad>
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include <../vitamins/sk_brackets.scad>
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module sk_brackets() {
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nuts = [undef, M5_nut, M5_sliding_t_nut, M5_sliding_t_nut];
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screws = [M5_cap_screw, M5_cap_screw, M4_cap_screw, M5_cap_screw];
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nuts = [undef, M5_nut, M4_sliding_t_nut, M5_sliding_t_nut];
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layout([for(s = sk_brackets) 1.5 * sk_size(s)[1]])
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sk_bracket_assembly(sk_brackets[$i], nut_type = nuts[$i]);
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sk_bracket_assembly(sk_brackets[$i], screw_type = screws[$i], nut_type = nuts[$i]);
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}
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if($preview)
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sk_brackets();
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let($show_threads = true)
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sk_brackets();
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@ -134,73 +134,70 @@ module wingnut(type) { //! Draw a wingnut
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module sliding_t_nut(type) {
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vitamin(str("sliding_t_nut(", type[0], "): Nut M", nut_size(type), " sliding T"));
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size = [type[7], type[2], nut_thickness(type)];
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size = [type[7], type[2], nut_thickness(type, true)];
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tabSizeY1 = type[8];
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tabSizeY2 = type[9];
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tabSizeZ = type[10];
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tabSizeZ = nut_thickness(type);
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holeRadius = nut_size(type) / 2;
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if($preview)
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color(grey80)
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extrusionSlidingNut(size, tabSizeY1, tabSizeY2, tabSizeZ, holeRadius);
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color(grey80)
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extrusionSlidingNut(size, tabSizeY1, tabSizeY2, tabSizeZ, holeRadius);
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}
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module hammer_nut(type) {
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vitamin(str("hammer_nut(", type[0], "): Nut M", nut_size(type), " hammer"));
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size = [type[7], type[2], nut_thickness(type)];
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size = [type[7], type[2], nut_thickness(type, true)];
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tabSizeY1 = type[8];
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tabSizeY2 = type[9];
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tabSizeZ = type[10];
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tabSizeZ = nut_thickness(type);
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holeRadius = nut_size(type) / 2;
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if($preview)
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color(grey80)
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extrusionSlidingNut(size, tabSizeY1, tabSizeY2, tabSizeZ, holeRadius, 0, hammerNut = true);
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color(grey80)
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extrusionSlidingNut(size, tabSizeY1, tabSizeY2, tabSizeZ, holeRadius, 0, hammerNut = true);
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}
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module extrusionSlidingNut(size, tabSizeY1, tabSizeY2, tabSizeZ, holeRadius, holeOffset = 0, hammerNut = false) {
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// center section
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linear_extrude(size[2] - tabSizeZ)
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difference() {
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square([size[0], size[1]], center = true);
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if(hammerNut) {
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translate([size[0] / 2, size[1] / 2])
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rotate(180)
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fillet(1);
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translate([-size[0] / 2, -size[1] / 2])
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fillet(1);
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}
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if(holeRadius)
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translate([holeOffset, 0])
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circle(holeRadius);
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}
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translate_z(size[2] - tabSizeZ)
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linear_extrude(tabSizeZ)
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stem_h = size.z - tabSizeZ;
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translate_z(-stem_h)
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linear_extrude(stem_h)
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difference() {
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square([size[0], tabSizeY2], center = true);
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square([size.x, size.y], center = true);
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if(hammerNut) {
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translate([size.x / 2, size.y / 2])
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rotate(180)
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fillet(1);
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translate([-size.x / 2, -size.y / 2])
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fillet(1);
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}
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if(holeRadius)
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translate([holeOffset, 0])
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circle(holeRadius);
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}
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linear_extrude(tabSizeZ)
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difference() {
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square([size.x, tabSizeY2], center = true);
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if(holeRadius)
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translate([holeOffset, 0])
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circle(holeRadius);
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}
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thread_d = 2 * holeRadius;
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if(show_threads)
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translate([holeOffset, 0])
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female_metric_thread(thread_d, metric_coarse_pitch(thread_d), size[2], center = false);
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translate([holeOffset, 0, -stem_h])
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female_metric_thread(thread_d, metric_coarse_pitch(thread_d), size.z, center = false);
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// add the side tabs
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for(m = [0, 1])
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mirror([0, m, 0])
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translate([0, tabSizeY2 / 2, size[2] - tabSizeZ]) {
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translate([0, tabSizeY2 / 2]) {
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cubeZ = 1;
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translate([-size[0] / 2, 0, 0])
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cube([size[0], (tabSizeY1 - tabSizeY2) / 2, cubeZ]);
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translate([-size.x / 2, 0])
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cube([size.x, (tabSizeY1 - tabSizeY2) / 2, cubeZ]);
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translate_z(cubeZ)
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rotate([0, -90, 0])
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right_triangle(tabSizeZ - cubeZ, (tabSizeY1 - tabSizeY2) / 2, size[0], center = true);
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right_triangle(tabSizeZ - cubeZ, (tabSizeY1 - tabSizeY2) / 2, size.x, center = true);
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}
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}
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@ -28,35 +28,35 @@ M5_nut_depth = 4;
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M6_nut_depth = 5;
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M8_nut_depth = 6.5;
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// s r t n w t
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// c a h y a r
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// r d i l s a
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// e i c o h p
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// w u k c e
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// s n r d
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// e t e
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// s h p
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// s k t
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// h
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// s r t n w t
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// c a h y a r
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// r d i l s a
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// e i c o h p
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// w u k c e
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// s n r d
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// e t e
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// s h p
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// s k t
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// h
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//
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M2_nut = ["M2_nut", 2, 4.9, 1.6, 2.4, M2_washer, M2_nut_trap_depth];
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M2p5_nut = ["M2p5_nut", 2.5, 5.8, 2.2, 3.8, M2p5_washer, M2p5_nut_trap_depth];
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M3_nut = ["M3_nut", 3, 6.4, 2.4, 4, M3_washer, M3_nut_trap_depth];
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M4_nut = ["M4_nut", 4, 8.1, 3.2, 5, M4_washer, M4_nut_trap_depth];
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M5_nut = ["M5_nut", 5, 9.2, 4, 6.25, M5_washer, M5_nut_depth];
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M6_nut = ["M6_nut", 6, 11.5, 5, 8, M6_washer, M6_nut_depth];
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M6_half_nut = ["M6_half_nut", 6, 11.5, 3, 8, M6_washer, 3];
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M8_nut = ["M8_nut", 8, 15, 6.5, 8, M8_washer, M8_nut_depth];
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toggle_nut = ["toggle_nut", 6.1, 9.2, 1.5, 1.5, M6_washer, 1.5];
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M2_nut = ["M2_nut", 2, 4.9, 1.6, 2.4, M2_washer, M2_nut_trap_depth];
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M2p5_nut = ["M2p5_nut", 2.5, 5.8, 2.2, 3.8, M2p5_washer, M2p5_nut_trap_depth];
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M3_nut = ["M3_nut", 3, 6.4, 2.4, 4, M3_washer, M3_nut_trap_depth];
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M4_nut = ["M4_nut", 4, 8.1, 3.2, 5, M4_washer, M4_nut_trap_depth];
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M5_nut = ["M5_nut", 5, 9.2, 4, 6.25, M5_washer, M5_nut_depth];
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M6_nut = ["M6_nut", 6, 11.5, 5, 8, M6_washer, M6_nut_depth];
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M6_half_nut = ["M6_half_nut", 6, 11.5, 3, 8, M6_washer, 3];
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M8_nut = ["M8_nut", 8, 15, 6.5, 8, M8_washer, M8_nut_depth];
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toggle_nut = ["toggle_nut", 6.1, 9.2, 1.5, 1.5, M6_washer, 1.5];
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M4_wingnut = ["M4_wingnut", 4, 10, 3.75,8, M4_washer, 0, 22, 10, 6, 3];
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M4_wingnut = ["M4_wingnut", 4, 10, 3.75,8, M4_washer, 0, 22, 10, 6, 3];
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// sx ty1 ty2 tz
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M3_sliding_t_nut = ["M3_sliding_t_nut", 3, 6, 4.0, 0, M3_washer, 0, 10, 10, 6, 3];
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M4_sliding_t_nut = ["M4_sliding_t_nut", 4, 6, 4.5, 0, M4_washer, 0, 11, 10, 6, 3.25];
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M5_sliding_t_nut = ["M5_sliding_t_nut", 5, 6, 4.5, 0, M5_washer, 0, 11, 10, 7, 3.25];
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M3_hammer_nut = ["M3_hammer_nut", 3, 6, 4.0, 0, M3_washer, 0, 5.5, 10, 6, 2.75];
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M4_hammer_nut = ["M4_hammer_nut", 4, 6, 4.5, 0, M4_washer, 0, 5.5, 10, 6, 3.25];
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// sx ty1 ty2
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M3_sliding_t_nut = ["M3_sliding_t_nut", 3, 6, 3.0, 4.0, false, 0, 10, 10, 6];
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M4_sliding_t_nut = ["M4_sliding_t_nut", 4, 6, 3.25,4.5, false, 0, 11, 10, 6];
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M5_sliding_t_nut = ["M5_sliding_t_nut", 5, 6, 3.25,4.5, false, 0, 11, 10, 7];
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M3_hammer_nut = ["M3_hammer_nut", 3, 6, 2.75,4.0, false, 0, 5.5, 10, 6];
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M4_hammer_nut = ["M4_hammer_nut", 4, 6, 3.25,4.5, false, 0, 5.5, 10, 6];
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nuts = [M2_nut, M2p5_nut, M3_nut, M4_nut, M5_nut, M6_nut, M8_nut];
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@ -36,15 +36,15 @@ function sk_screw_separation(type) = type[9]; //! Separation of screws in the ba
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module sk_bracket(type) { //! SK shaft support bracket
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vitamin(str("sk_bracket(", type[0], "): SK", sk_diameter(type), " shaft support bracket"));
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d = type[1];
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h = type[2];
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d = sk_diameter(type);
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h = sk_hole_offset(type);
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E = type[3];
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W = type[4];
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L = type[5];
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F = type[6];
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G = type[7];
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W = sk_size(type)[0];
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L = sk_size(type)[2];
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F = sk_size(type)[1];
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G = sk_base_height(type);
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P = type[8];
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B = type[9];
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B = sk_screw_separation(type);
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S = type[10];
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bolthole_radius = type[11];
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@ -93,24 +93,32 @@ module sk_bracket(type) { //! SK shaft support bracket
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screw(M3_cap_screw, P - screw_head_height(M3_cap_screw) / 2 + eps);
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}
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module sk_bracket_assembly(type, screw_length = 16, screw_type = M5_cap_screw, nut_type = undef) { //! Assembly with fasteners in place
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sk_bracket(type);
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nut_type = is_undef(nut_type) ? screw_nut(screw_type) : nut_type;
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module sk_bracket_hole_positions(type) { //! Place children at hole positions
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for (x = [-sk_screw_separation(type), sk_screw_separation(type)])
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translate([x / 2, sk_base_height(type) - sk_hole_offset(type), 0])
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rotate([-90, 0, 0]) {
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screw_and_washer(screw_type, screw_length);
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translate_z(-screw_length + 2 * washer_thickness(screw_washer(screw_type)))
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if(nut_type == M5_sliding_t_nut)
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translate_z(nut_thickness(nut_type))
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vflip()
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sliding_t_nut(nut_type);
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else
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nut(nut_type)
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washer(nut_washer(nut_type));
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}
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rotate([-90, 0, 0])
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children();
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}
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module sk_bracket_assembly(type, part_thickness = 2, screw_type = M5_cap_screw, nut_type = undef) { //! Assembly with fasteners in place
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sk_bracket(type);
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screw_type = is_undef(screw_type) ? scs_screw(type) : screw_type;
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screw_washer_thickness = washer_thickness(screw_washer(screw_type));
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nut_type = is_undef(nut_type) ? screw_nut(screw_type) : nut_type;
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nut_washer_type = nut_washer(nut_type);
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nut_washer_thickness = nut_washer_type ? washer_thickness(nut_washer_type) : 0;
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nut_offset = sk_base_height(type) + part_thickness;
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screw_length = screw_longer_than(nut_offset + screw_washer_thickness + nut_washer_thickness + nut_thickness(nut_type));
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sk_bracket_hole_positions(type) {
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screw_and_washer(screw_type, screw_length);
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translate_z(-nut_offset)
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vflip()
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if(!nut_washer_type)
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sliding_t_nut(nut_type);
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else
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nut_and_washer(nut_type);
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}
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}
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