Originally Posted by
Watson
The 6600 requires a thinner ruler than a 1/4" in order to be able to use it all the way around.
If you look at this link, you'll see a ruler made specifically for domestic machines by Westalee. If you contact any supplier they will tell you which foot you need for your model.
Watson
https://www.sewsteady.com/product/he...set-or-single/
I have been using Angela Walters rulers with fairly decent sucess - - but I have smashed my finger a couple of times ha ha ha Is that why I should use thinner rulers??