No DH here to help. I had mine made by a local plastics company. I traced around my machine then ironed a few layers of freezer paper together and cut out the insert. Once I confirmed it fit the machine properly, I took it to the plastics company, they cut the acryllic, smoothed the edges, and drilled the holes for feet. I had something at home I could use for feet, so no need to have dowling cut for this.
ali