Mom used her Viking to make a cover for her studio bed. She used upholstery weight fabric and made piping, The full Monty, as it were. She had no problems with her machine. But I don't want to take my chances with it so I brought in my Necchi Super Nova.
In order for it to function as a flat bed, vs a table top, in the Horn Cabinet I had to adjust the airlift.
Steven fashioned an insert from a piece of luan underlayment. It isn't quite thick enough but it will do for now. I can use this same piece as a template for an acrylic one.