- cylinder(r = tube_d/2 + thin_wall, h = base_l/6);
- translate([-tube_d/2-thin_wall, 0, 0])
- cube([tube_d + 2*thin_wall, base_l/6, tube_d/3]);
+ cylinder(r = tube_d/2, h = base_l + 2*eps, $fn = 32);
+ // upper clip
+ translate([-infty/2, -infty/2, tube_zoff + 5*tube_d/6])
+ cube(infty);
+
+ // front-side hole
+ translate([0.7*base_front, 0, -eps])
+ scale([1, base_l/base_front, 1])
+ cylinder(r = base_front/5, h = thin_wall + 2*eps);
+ // rear-side hole
+ translate([-0.6*base_rear, 0, -eps])
+ scale([1, base_l/base_rear, 1])
+ cylinder(r = base_rear/4, h = thin_wall + 2*eps);