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-rw-r--r--x-carriage-adapter.scad13
1 files changed, 13 insertions, 0 deletions
diff --git a/x-carriage-adapter.scad b/x-carriage-adapter.scad
index 9cf6c08..9891072 100644
--- a/x-carriage-adapter.scad
+++ b/x-carriage-adapter.scad
@@ -32,12 +32,16 @@ gap = 5; // gap between microswitch and heatsink
ps_offset = 3+3; // pushscrew offset from the hinge
back_thickness = 8; // thickness of the part behind the hinge
nut_thickness = 2.5; // intelligent guess should suffice
nut_width = 5.5; // intelligent guess should suffice
+link_thickness=3; // thickness of link holder protrusion
+link_or=3.5; // link outer diameter
+link_ir=1.5; // link inner diameter
+
use <threads.scad>;
/* the internal thread for e3d bowden coupling: http://e3d-online.com/E3D-v6/Spares/Threaded-Bowden-Coupling-1.75mm-Filament */
module pushfit_thread(h=thread_h) {
thr = 3/8 + .5/25.4;
slit = 25.4*thr/2 + 0.4;
translate([0,0,-1]) if(draft) cylinder(d=thr*25.4,h=h+2);
@@ -63,12 +67,21 @@ module holder() {
for(mhot = mounting_holes_on_top) translate([mhot[0],mhot[1],0]) {
translate([0,0,drs])
cylinder(d=screw_shell_d,h=thread_h-drs,$fn=30);
cylinder(r=rs,h=thread_h,$fn=30);
}
}
+ difference() {
+ hx0 = max(mounting_holes_on_top[1][1],mounting_holes_on_top[2][1])+screw_shell_d/2;
+ hull() {
+ for(ls=[-1,1]) translate([0,hx0+ls*link_or,thread_h+ls*link_or])
+ rotate([0,90,0]) cylinder(r=link_or,h=link_thickness,center=true,$fn=30);
+ }
+ translate([0,hx0+link_or,thread_h+link_or])
+ rotate([0,90,0]) cylinder(r=link_ir,h=link_thickness+2,center=true,$fn=30);
+ } // difference
hull() {
translate([0,0,thread_h/2]) cube(size=[hs_size[0]-2*hinge_s-2*slide_tolerance,feed_shell_d,thread_h],center=true);
translate([0,-hff,thread_h/2])
rotate([0,90,0])
cylinder(d=thread_h,h=hs_size[0]-2*hinge_s-2*slide_tolerance,center=true,$fn=60);
}