Thermoforming Design Guidelines Our Thermoforming Design Guidelines will teach you the essential rules for Drafting, Radii, Drawing Ratios, Under Cuts, Reference Points, Ribs and Bosses, Textures, Joining Lines, Trims, Holes, Cut-outs and Vents, Hardware, Structural Parts and Tolerances. Plus get info about the key properties and typical applications of thermoplastic materials. After you fill out this form, you will receive an email with a link to download the Thermoforming Design Guidelines PDF. PLEASE use a VALID email address. Name:* Company: Email:* Newsletter: Register to receive occasional emails including white papers, articles, and updates on new product innovations. Please include your comments and questions:Your contact information is safe with us. Privacy Policy.CAPTCHA