As far as I can tell with my Singer 533, there is no way to drop the feed dogs. The manual says that you have to get a different needle plate that covers them if you want to do free-motion sewing.
But, I haven't been able to locate one of those either.
But, I haven't been able to locate one of those either.
There is a dial on the top of the machine that goes from "D" and then to numbers. This increases the pressure of the feed dogs. The "D" is for darn and it allows you to move fabric freely.
I currently have an electric fence. I have had one for 28 years. I had no dogs with high prey. I had a collie who ran from one side of the yard to the other, barking at cars, but did not cross the line.
I currently have a 87 lb German Shepherd dog that I have trained on the fence from oohlalapets.com and their best rated invisible dog fence. He was taught with flags and shock, like a puppy where, so to speak, lines were drawn. Even if his collar is off, he does not leave the yard. Remember that he is low-energy and weak-loving. I was looking for a breeder who breeds in these qualities. He is also an old-fashioned GSD with a straight back as they are spawned.