I love my K-Cup coffee maker, and I like to pack my own K-Cups. I got my best results with the Java Jig, but the filters are kind of expensive. Standard coffee filters are much cheaper so I set out to create this press to crimp and resize standard coffee filters for the Java Jig. I got my best results with the 3060 model as it had a steeper angle to the sides. Let me know how you like it, or if you can make any improvements. See the instructions and images on how to use this press. NOTE: The pressure in a Keurig is too great for single-ply coffee filters. Either use 2 layers of Mr Coffee style round filters, or the funnel style filters (left folded) for best results.