Originally Posted by omak
Originally Posted by gale
I just use the bobbins that are made for the machine.
That is what a Bernina dealer told me. If the machine comes with a plastic bobbin - - a metal bobbin will throw the timing and all sorts of other stuff off.
If the machine comes with a metal bobbin, and you try a plastic, your tension will be a nightmare.
Makes sense to me! <wave>
I've used both metal and plastic bobbins in my Pfaff (mid 1980's model) and my old (1962) Bernina and my Singer 237s (early 1960s?).
I can't tell that the machines can tell the difference.
But those are all OLDER machines and may not be that finicky???
And horror of horrors - I used the cotton covererd polyester Coats & Clark threads in them. And they sewed a very nice seam and the quilts are still holding up nicely.