sewing-table: Test uses hull, not minkowski

diff --git a/sewing-table.scad.m4 b/sewing-table.scad.m4
index fa5af0f259526aa5e4791ef380bcf427e03d7f67..0f556d25a1d3536c07f8c5635f98eeb7bbb23c73 100644 (file)
--- a/sewing-table.scad.m4
+++ b/sewing-table.scad.m4
@@ -193,9 +193,11 @@ module TileBase(botleft, topright){
            cube(concat(topright_post-botleft_post, [tile_th+2]));
        }
        shufflesz = max(test_edge, tile_hard_edge_hole_dist)*2;
-       minkowski(){
-         Machine();
-         cube(shufflesz, center=true);
+       hull(){ // poor man's minkowski
+         for (xs=[-1,1]) for (ys=[-1,1]) for (zs=[-1,1]) {
+           translate([xs,ys,zs] * shufflesz)
+             Machine();
+         }
        }
       }
     }