I have the Juki,1541s which i bought from Steve. This machine loves thick layers. I can sew waterproof canvas 600 Denier, but in my experience it not sew well on two layers of cotton... too light. I hope this helps anyone that needs to know
Here is a link for the foot on our website. sewinggold.com/product/juki-dnu-1541s-narrow-walking-foot/ Here is an install video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-LBEPpl7cZHU.html