Ok. I think my stupid auto spell correct changed grammy17's name. Since I don't really know how to post a link right now ( the geek husband is sleeping) I will list the name. It is called "sewing room redo" by Grammy17.
I used the Ikea ingo table, a 1x 10 piece of lumber an 2" screws. I used a jig saw to cut out the table top after marking with a pencil and then painters tape ( I was worried about cutting a straight line). Sanded everything smooth, then flipped the table over, measured and cut the 1x10 to fit right across the bottom of the table, drilled pilot holes, then screwed the shelf to the table with the 2" screws. I then drilled the hole for my knee lift through the front.
I think the hardest part was figuring out where I wanted the machine to sit, and how far back the knee lift would reach, once that was done, it took me and DH about an hour to get things done, and I did most of the work- even with my limited experience with power tools.