Thank you for everyone's response. I will look on ebay again for the one that uses cams.Thank you Macybaby for explaining what each one looks like this will be most helpful. mimack thank you for sending link to youtube.
Manicmike I just might need this link for a manual thank you.Thank you Shelbie for explaining the cams to me this was very helpful because I have never worked with cams before and I do have the buttonholer and has the cams with it.