I have been using snap-on feet on my Bernina 730 and 1030 machines for years with the aid of a clip-on adaptor screwed onto a low-shank Bernina adaptor. This combination allows me take the adaptor apart and use the low shank adaptor to attach low shank feet, such as a ruffler.
Bernina feet, whilst clearly the best option, are exorbitantly expensive and I can’t justify this cost for some of the more exotic feet that I may only use for part of one project.
Through the years I have also acquired a Bernina clip -on adaptor with a metal lever at the back with which to ‘clip’ the clip-on feet to it, which is also brilliant at the job but obviously lacks versatility as it doesn’t allow for low shank feet to be used.
Recently I bought a set of 48 (? I think), clip-on feet to expand my collection at a reasonable price, and another ‘Bernina style’ clip-on adaptor which has a red plastic lever at the back rather than a metal one. Now for the weird bit.
I used the knit foot and then the cording foot from the new set, both with the combination adaptor, and all was well. Then the next time I sewed, I attached the rolled hemming foot to the machine using the adaptor with the red lever, and the needle smashed into the foot. Not having used this foot before, I thought the foot was a fault, and so, being in a hurry I sewed the hem with the standard foot instead.
Today I attached the knit foot to the machine, and picked up the adaptor with the red lever as it was at the top of the box in which I keep the clip-on feet. Lo and behold, when I started to sew (with a straight stitch), the needle collided with the centre plate of the foot and smashed! I was confused, this foot had worked last time, what was the problem! Having forgotten which adaptor I had used last time I spent some time fiddling around checking what could be wrong with the machine. Then I thought about it a bit more, and realised I’d most likely used the combination adaptor as this is always stored in the actual machine’s own accessory box. I swapped the adaptors, and sure enough, no collision and no broken needle.
A little analysis and test-driving was needed, and after re-checking it seems that the red-lever adaptor positions some clip-on feet too far forward, so that the machine needle hits the centre plate of the foot. I haven’t tested all the clip-on feet with both adaptors yet, but have written big notices one the storage box, machine and accessory box to remind myself to use the combination adaptor with the knit foot and roller hem foot, and to check any others carefully before starting to sew.
A lesson learned!