Spool holder left arm changes and files

Spool holder left arm changes and files, to fix issue
https://github.com/prusa3d/Orignal-Prusa-i3/issues/1

Printed-Parts/scad/spool holdahMK3.scad

@@ -1,6 +1,9 @@
 
 linear_extrude(height = 8, center = true, convexity = 5)
    import (file = "spool holdahMK3.dxf", layer = "0");
-translate([51.53-3.5,123-5-3.5,3.9])cylinder(h = 10, r=8);
+// Generate right spool
+//translate([51.53-3.5,123-5-3.5,3.9])cylinder(h = 10, r=8);
+// Generate left spool
+translate([51.53-3.5,123-5-3.5,-13.9])cylinder(h = 10, r=8);
 //translate([51.5,123,31])cylinder(h = 6, r1=8, r2=12.5);
 //translate([51.5,123,37])cylinder(h = 2, r=12.5);