$fn=60;

include <BOSL2/std.scad>

items=2;

difference() {
    cuboid([20,5,100], rounding=1);
    translate([0,0,-40]) ycyl(l=5, d=5.5, rounding=-1);
    translate([0,0,40]) ycyl(l=5, d=5.5, rounding=-1);
}

for (i=[0:50:50*(items-1)]) {
    translate([-8,15.5,i-15]) rotate([0,180,180]) import("sliding_block_base.stl");
}