shortened belts

1 files changed, 1 insertions, 1 deletions

diff --git a/x-carriage.scad b/x-carriage.scad
index 48fcec8..8a9f0d9 100644
--- a/x-carriage.scad
+++ b/x-carriage.scad
@@ -26,49 +26,49 @@ tiehole_id = bearings_d+3;
 tiehole_od = bearings_d+10;
 tiehole_w = 4;
 
 screw_d = 3;
 screwhead_d = 5.5;
 screwhead_h = 3;
 
 module belt(pitch=belt_pitch,width=belt_width,thickness=belt_thickness,tooth=belt_tooth,l=100,tolerance=0) {
  translate([-l/2,-width/2,-thickness])
  intersection() {
   union() {
    cube(size=[l,width,thickness+tolerance]);
    for(x=[0:pitch:l/2]) for(s=[-1,1])
     translate([l/2+s*x,0,thickness])
     rotate([-90,0,0])
     cylinder(r=tooth+tolerance,h=width,$fn=6);
   }
   translate([0,-1,0])
   cube(size=[l,width+2,thickness+tooth+1]);
  }
 }
 
 module xcarriage() {
  cw = bearings_l+2*bearings_m;	// carriage width
- % for(mz=[0,1]) mirror([0,0,mz]) translate([0,0,-belts_apart/2]) belt();
+ % for(mz=[0,1]) mirror([0,0,mz]) translate([0,0,-belts_apart/2]) belt(l=cw+2);
  difference() {
   translate([-cw/2,-belt_width/2,-(rods_apart+bearings_d+bearings_m)/2])
   cube(size=[cw,bearings_d/2+bearings_s+belt_width/2,rods_apart+bearings_d+bearings_m]);
 
   for(sz=[-1,1]) translate([0,0,sz*rods_apart/2]) {
    rotate([0,90,0])
    cylinder(d=bearings_d,bearings_l,center=true,$fn=60);
    for(sx=[-1,1]) translate([sx*bearings_l/4,0,0])
     rotate([0,90,0]) difference() {
      cylinder(d=tiehole_od,h=tiehole_w,center=true,$fn=60);
      cylinder(d=tiehole_id,h=tiehole_w+2,center=true,$fn=60);
     }
    rotate([0,90,0]) cylinder(d=bearings_d-bearings_m,h=cw+2,center=true,$fn=60);
    translate([-cw/2-1,-belt_width,-(bearings_d-bearings_m)/2]) cube(size=[cw+2,belt_width,bearings_d-bearings_m]);
   }
 
   difference() {
    gap=belts_apart/6;
    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;