Thread Cone adapter
thingiverse
This will allow any sewing machine that has a 5.5mm (or smaller) thread rod use the larger thread cones directly.
Download Model from thingiverse
With this file you will be able to print Thread Cone adapter with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Thread Cone adapter.