Tammi,
One of the differences in the class 15 bobbin cases is the position and length of the slot. The needle at its lowest has it's the tip in that slot. If you use a case made for a side load straight stitch machine in a zig zag machine the needle will hit the case.
The width of the zig zag is the other differences. Wider zig zag stitches need a wider slot in the bobbin case.
Cathy
Originally Posted by
ArchaicArcane
I have a question about the class 15 bobbin cases for the zig zag machines.
There are 2 different part numbers for them, one for the side loading machines and one for the front loading, but I can't see a difference in the cases at all... of course the price is different on the 2, which implies that there is some difference....