1 files changed, 3 insertions, 1 deletions

diff --git a/x-carriage.scad b/x-carriage.scad
index a546bb7..e2ccc3a 100644
--- a/x-carriage.scad
+++ b/x-carriage.scad
@@ -62,50 +62,52 @@ module xcarriage() {
     }
    rotate([0,90,0]) cylinder(d=bearings_d-bearings_m,h=cw+2,center=true,$fn=60);
   }
 
   difference() {
    gap=3;
    translate([0,-.5,-gap/2])
    cube(size=[cw+2,belt_width+2,belts_apart+2*belt_thickness+gap],center=true);
    for(mx=[0,1]) mirror([mx,0,0]) {
     ofc = mounting_holes_apart/2+screwhead_d/2+belt_thickness+belt_tooth+play_tolerance; // offset from center
     r=1;
     x0 = ofc+r; x1=cw/2-r;
     z0 = r; z1 = belts_apart/2-belt_thickness;
     difference() {
      hull() for(x=[x0,x1]) for(z=[z0,z1])
       translate([x,0,z])
       rotate([90,0,0]) cylinder(r=r,h=belt_width+2,center=true,$fn=30);
      translate([cw/2,0,belts_apart/2]) mirror([0,0,1]) belt(width=belt_width+2,l=cw/2+2,tolerance=fit_tolerance);
     }
     bgap = belt_thickness+belt_tooth+fit_tolerance;
     r1 = (belts_apart/3-bgap)/2;
     echo(r1);
     hull() for(x=[mounting_holes_apart/2,x1])
      translate([x,0,-r1-bgap])
      rotate([90,0,0]) cylinder(r=r1,h=belt_width+2,center=true,$fn=30);
     dgn= sqrt(pow(x1-x0,2)+pow(z1-z0,2));
     echo(dgn);
     translate([x0,0,z0])
     rotate([90,0,0])
     * cylinder(r=dgn/2-r-belt_thickness,h=belt_width+2,center=true,$fn=30);
     /*
             pd = 4.5;// post diameter
             bhd = 5;// belt holder diameter
     translate([cw/2-pd/2,0,belts_apart/2-belts_thickness-bhd/2]) cube(size=[pd,belt_width,bhd],center=true);
     translate([(cw-pd)/2,0,0]) // TODO: z
     rotate([-90,0,0]) translate([0,0,-1]) cylinder(d=pd,h=belt_width+2,center=true,$fn=30); */
    }
   } // difference
 
   translate([0,0,30/*heatsink height*//2])
   for(mhft = mounting_holes_from_top) translate([mhft[0],0,-mhft[1]]) {
    rotate([90,0,0]) cylinder(d=screw_d+2*play_tolerance,h=bearings_d+2*bearings_s+2,center=true,$fn=30);
    translate([0,belt_width/2+screwhead_h+play_tolerance,0])
    rotate([90,0,0]) cylinder(d=screwhead_d+2*play_tolerance,h=screwhead_h+play_tolerance+1,$fn=30);
   }
  } // difference
 }
 
-xcarriage();
+print=false;
+if(print) rotate([-90,0,0]) xcarriage();
+else xcarriage();