Andy,
I have 2) consew 146rb sewing machines. One is set up for wet suit edge binding.
While the other is stock.
http://www.google.com/#hl=en&expIds=17259,24813,24999,25566,26046,27015&sugexp=ldymls&xhr=t&q=consew+walkingfoot+zig&cp=22&pf=p&sclient=psy&aq=f&aqi=&aql=&oq=consew+walkingfoot+zig&gs_rfai=&pbx=1&fp=9f2370386c77b788
try that link