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// The diameter of the inner collet
inner_diameter = 6;
// The diameter of the inner collet top lip
outer_diameter = 10;
// Thickness
thickness = 1.5;
/* [Hidden] */
layer_height=0.15; extrusion_width=0.4;
epsilon=.01;
module unbacklash(
id=inner_diameter,
od=outer_diameter,
h=thickness,
alpha=10,
overlap=0.8,
split=2*extrusion_width,
) {
fnd=PI*4; fnr=2*fnd;
sd = (od-id)/2+overlap;
s = sd;
r = sd/2;
H=3*h;
% translate([0,0,-h]) cylinder(d=id,h=3*h,$fn=id*fnd);
difference() {
union() {
translate([-od/2,0,0])
cube(size=[od,od/2+s-r,h]);
hull() for(sx=[-1,1])
translate([sx*(od/2-r),od/2+s-r,0])
cylinder(r=r,h=H,$fn=r*fnr);
for(sx=[-1,1])
hull() for(y=[0,-od/2+sd/2])
translate([sx*(od/2-sd/2),y,0])
cylinder(d=sd,h=h,$fn=sd*fnd);
* translate([-od/2,od/2,0])
cube(size=[od,r,H]);
}
translate([0,0,-1]) cylinder(d=id,h=h+2,$fn=od*fnd);
translate([-id/2+overlap,-od/2-1,-1]) cube(size=[id-2*overlap,od/2+1,h+2]);
translate([0,0,h])
rotate([alpha,0,0])
translate([-od/2-1,-od,0])
cube(size=[od+2,od,h]);
hull() for(y=[0,od/2-split/2])
translate([0,y,-1])
cylinder(d=split,h=h+2,$fn=split*fnd);
translate([0,od/2-split,-1]) cylinder(r=split,h=h+2,$fn=split*fnr);
}
}
unbacklash();
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