It's pretty simple, four parts, The cap gets printed twice, The rings once, and the Maker once. It makes burger making easy! Parts come apart for easy cleaning. Print the parts at different sizes to get different size burgers. X and Y for size and Z for thickness. Print these in HIPS Plastic! It is food grade and safe for the dishwasher. ABS and PLA are a bad idea. HIPS is roughly the same price as ABS and PLA and will print the same. Takes about 12hours total to print at 100 microns. Smoothing the insides where the meat touches the plastic is recommended.Just place a ball of meat on the bottom plate with the ring on top of it. Grease the plunger/maker and then press the it into the meat and remove. This is were the fillings go. Now fill the cavity with whatever you want in your burger, then place a flat disk of meat on top and use the second Cap plate to press the meet together. Add extra meat as needed to fill the mold Remove the plate from the top and bottom and push the Jucy Lucy out of the ring carefully. Bam, Jucy Lucy Burger!