I got a Delta Rotary from a friend and didn't figure out how to thread it. Then I bought an Eldredge Two-Spool, and it came with a manual. The Delta threads the same as the Two-Spool. Very different from other machines. I hope you can find the directions to thread your machine, as I was very happy with how the Two-Spool sews. And I can wind my own spools with the machine. The bottom spool in the can is a wooden spool, but you need to find old spools of that size. I have almost a dozen of them now.