I'm using one of those fold up tables that I purchased from Walmart, no the table dosen't bounce or move, I have put the walffle mat under the machine, nothing seems to help, I considered drilling holes in the table and the sewing machine case until I discovered that the table has two layers of plastic.I need some way to stableize the machine ( It is a Simplicity Quilter's Classic,) the machines sews bueatifly Just can"tget it to stay still while I'm quilting.