Updates

tir_sportif/tripod/scad/plate_xs.scad

@@ -0,0 +1,20 @@
+$fn=60;
+
+include <BOSL2/std.scad>
+include <boltsos_0.4.1/BOLTS.scad>
+
+difference() {
+    union() {
+        zcyl(d=40, h=10, anchor=RIGHT);
+        cuboid([80,60,10], rounding=3, edges=[FWD+RIGHT,BACK+RIGHT], anchor=LEFT)
+        attach(LEFT) prismoid([60,10], [38.5,10], h=25.7, anchor=BOT);
+        translate([-30,-20,0]) cuboid([30,25,10], rounding=2, edges=[FWD+RIGHT,BACK+RIGHT,FWD+LEFT,BACK+LEFT], spin=60);
+    }
+    translate([-20,0,0]) zcyl(d=26, h=10, rounding=-.5);
+    translate([-30,-20,0]) cuboid([30,2,10], rounding=-.5, spin=60);
+    translate([40,0,5]) cuboid([75,55,2], rounding=3, edges=[FWD+RIGHT,BACK+RIGHT,FWD+LEFT,BACK+LEFT]);
+    translate([-30,-25,0]) rotate([0,0,60]) {
+        ycyl(d=6, h=31)
+        attach(BACK) zcyl(d=8, h=3, spin=90, anchor=TOP);
+    }
+}

tir_sportif/tripod/scad/tube_clamp.scad

@@ -0,0 +1,193 @@
+id = 16.3;          // inner diameter of ring
+od = id+5;          // outer diameter of ring
+height = 5;      // height of ring
+gap = 100;         // ring opening in degrees
+ends=1;           // 0 no ends, 1 round ends, 2 clamp ends
+hd=1;           // mount hole diameter
+cd=7;             // countersink diameter
+cdepth=3;         // coutersink depth
+blobsize=1;       // size of rounded ends, if ends==1
+sw=5;            // mounting block width
+sdepth=14;        // support depth
+nholes=1;         // number of support holes.
+block_holes=[1,2,3,4,5];   // block some holes e.g. [2,3]
+sh=10;            // mounting block height. NB total height is nholes x height.
+support_loc=0;    // 0 = mounting block is centered, >0 centred on hole number
+support_rot=90;    // support angle / clamp angle.
+flat_bottom=false; //remove all points below the bottom of the ring for ease of printing
+clamp_width=5;   // width of clamp ends
+clamp_depth=10;   // depth of clamp ends
+clamp_height=10;  // height of clamp ends
+clamp_hole=3;     // diameter of clap screw hole
+clamp_holew=1;    // clamp hole width
+
+// internal constants
+$fn=100;
+g=1/(nholes+1);
+fracs=[for (i=[g:g:(1-g)]) each i];
+sh2=sh+cd;
+
+module main() {
+    difference() {
+        union(){
+            // the clip
+            clip();
+            // mounting block
+            if (nholes>0) {
+            rotate([support_rot,0,0]) {
+                if (support_loc==0) { //center    
+                    translate([0,0,-(sh/2)*(nholes-1)]){
+                        support_block();
+                    }
+                } else {
+                    translate([0,0,-sh*(support_loc-1)]){
+                        support_block();
+                    }
+                }
+            }
+        }
+        }
+        if(nholes>0){
+        // holes go through clip and mounting block
+        rotate([support_rot,0,0]) {
+            if (support_loc==0) { //center
+                    translate([0,0,-(sh/2)*(nholes-1)]){
+                        holes();
+                    }
+            } else {
+                translate([0,0,-sh*(support_loc-1)]){
+                    holes();
+                }
+            }
+        }
+    }
+        //flat bottom
+        if (flat_bottom) {
+            translate([0,0,-(od+sh)-height/2]) {
+                cube(2*(od+sh),center=true);
+            }
+        }
+    }
+} //main
+
+
+module end_blobs(h,d,angle,od,center=false) {
+translate([od,0,0]){
+    cylinder(h=h,d=d,center=center);
+}
+rotate([0,0,angle]) {
+    translate([od,0,0]){
+        cylinder(h=h,d=d,center=center);
+    }
+}
+} //end_blobs
+
+module end_clamps(){
+    translate([id/2+clamp_depth/2+(od-id)/4,-clamp_width/2,0]){
+        difference(){
+            cube([clamp_depth,clamp_width,clamp_height],center=true);
+            translate([-clamp_holew/2,0,0]) {
+                rotate([90,0,0]){
+                    cylinder(d=clamp_hole,h=clamp_width+2,center=true);
+                }
+            }
+            translate([clamp_holew/2,0,0]) {
+                rotate([90,0,0]){
+                    cylinder(d=clamp_hole,h=clamp_width+2,center=true);
+                }
+            }
+            cube([clamp_holew,clamp_width+2,clamp_hole],center=true);
+        }
+    }
+    
+    rotate([0,0,gap]) {
+    translate([id/2+clamp_depth/2+(od-id)/4,clamp_width/2,0]){
+        difference(){
+            cube([clamp_depth,clamp_width,clamp_height],center=true);
+            translate([-clamp_holew/2,0,0]) {
+                rotate([90,0,0]){
+                    cylinder(d=clamp_hole,h=clamp_width+2,center=true);
+                }
+            }
+            translate([clamp_holew/2,0,0]) {
+                rotate([90,0,0]){
+                    cylinder(d=clamp_hole,h=clamp_width+2,center=true);
+                }
+            }
+            cube([clamp_holew,clamp_width+2,clamp_hole],center=true);
+        }
+    }
+}
+}
+
+module wedge(h,d,angle,center=false) {
+intersection(){
+    cylinder(h=h,d=d,center=center);
+    x = (sqrt(2*(d^2))/2)+1;
+    y = 0;
+    xr = x*cos(angle)-y*sin(angle);
+    yr = x*sin(angle)+y*cos(angle);
+
+    linear_extrude(h*2,center=center){
+        if (angle<=90){
+            polygon([[x,0],[xr,yr],[0,0]]);
+        } else if (angle<=180) {
+            polygon([[x,0],[0,x],[xr,yr],[0,0]]);
+        } else if (angle<=270) {
+            polygon([[x,0],[0,x],[-x,0],[xr,yr],[0,0]]);
+        } else {
+            polygon([[x,0],[0,x],[-x,0],[0,-x],[xr,yr],[0,0]]);
+        }
+    }
+}
+} //wedge
+
+module support_block() {   
+for (k = [g:g:(1-g)]) { 
+    offset=sh*((k-g)/g);
+    translate([-(sdepth/2)-id/2,0,offset]){
+        cube([sdepth,sw,sh],center=true);
+    }
+}
+} //support_block
+
+module clip(){
+    rotate([0,0,-gap/2]){
+        difference() {
+            cylinder(h=height,d=od,center=true);
+            cylinder(h=height*2,d=id,center=true);
+            wedge(h=height*2,d=od+1,center=true,angle=gap);
+        }
+        if (ends==1) {
+            end_blobs(h=height,d=((od-id)/2)+blobsize,angle=gap,od=(id+(od-id)/2)/2,center=true);
+        }
+        if (ends==2) {
+            end_clamps();
+        }
+    }
+
+} //clip
+
+module holes(){
+  
+for (f = [1:nholes]) {
+    k=fracs[f-1];
+    if (len(search(f,block_holes))==0) {
+        offset=sh*((k-g)/g);
+        translate([-(sdepth/2)-id/2,0,offset]){
+        // mount holes
+        rotate([0,90,0]){
+            cylinder(h=2*sdepth,d=hd,center=true);
+        }
+        // countersink
+        translate([sdepth/2-cdepth,0,0]){
+        rotate([0,90,0]){
+            cylinder(h=2*sdepth,d=cd);
+        }
+    }
+}
+}
+}
+}
+
+main();