+ cylinder(r = stab_tube_d/2, h = stab_tube_l + 2*eps, $fn = 6);
+
+ // right fiber hole
+ translate([-fuse_tube_d/2-wall-fiber_hole_d/2, fuse_tube_l/2-wall-fiber_hole_d/2, -eps])
+ cylinder(r = fiber_hole_d/2, h = stab_tube_d + 2*stab_tube_wall + 2*eps, $fn = 6);
+ // right fiber slot
+ translate([-fuse_tube_d/2-wall-fiber_hole_d/2, fuse_tube_l/2+stab_tube_d/2, -eps])
+ cylinder(r = fiber_hole_d/2, h = stab_tube_d + 2*stab_tube_wall + 2*eps, $fn = 6);
+ // left fiber hole
+ translate([stab_tube_l-fuse_tube_d/2-stab_tube_xoff-2*wall-fiber_hole_d/2, fuse_tube_l/2-wall-fiber_hole_d/2, -eps])
+ cylinder(r = fiber_hole_d/2, h = stab_tube_d + 2*stab_tube_wall + 2*eps, $fn = 6);
+ // left fiber slot
+ translate([stab_tube_l-fuse_tube_d/2-stab_tube_xoff-2*wall-fiber_hole_d/2, fuse_tube_l/2+stab_tube_d/2, -eps])
+ cylinder(r = fiber_hole_d/2, h = stab_tube_d + 2*stab_tube_wall + 2*eps, $fn = 6);