This evening I spent some time searching for a reusable plastic spool for the MakerBot 3D printer. To fit the rolls it needs a flange diameter of 11.5 inches, barrel diameter of 5 inches, and an interior width of 4 inches. Well, it looks like such a thing doesn’t exist on the Internet, so it pretty much doesn’t exist as a product for sale.
Instead of getting on with life I grabbed a pizza box, fired up QCAD and make my own Cardboard Spool with the exact dimensions I need.
Unlike many other spool designs, this can be made without a fancy laser cutter. I don’t have a mount for it yet. Perhaps tomorrow will bring more inspiration.