// Singer Spool Holder Clamp
// by zeus - zeus@ctdo.de - CC-BY-NC-4.0
// -> https://www.thingiverse.com/zeus
// -> https://github.com/zeus86
// 2014-12-11
// remixed from "Thread Spool" ( http://www.thingiverse.com/thing:28902 )
// by Mike Creuzer - Mike@Creuzer.com 20120820
//
// With this spool you can re-spool thread from bigger spools, which have too much
// mass and tend to cut off or break your needle. Unfortunately its not fully automatic,
// because you have to use your fingers to guide the tread while respooling, to make
// sure, that the spool is evenly filled, because the respooler is originally designed
// to spool the under-thread-spool and therefore not suitable to respool a large amount
// of thread nor spools of this height.
// ---

// Parameters are in mm

// Inner Diameter
id=5; // 5 is good for the Singer Professional XL1000
// Outer Diameter
od=8.5; // 8.5 Gives enought Material thickness when id is "5"
// Width of the cut
cut_w=1; // Increase when your Printer is very sloppy and almost fills this gap
// Height
h=5; //Height of the Clamp

$fn=050;


difference(){
	cylinder(h=h, r=od/2, center=true);
	cylinder(h=h+0.1, r=id/2, center=true);
	translate([od/2-cut_w,0,0]){
		#cube([od/2,cut_w,h+0.1],center=true);
	}
}