Summary Quick Change Tool for HF 7X10 mini Lathe. Prints on ABS to use on lathe and work with soft materials like plastics or aluminum. 4 wall thickness +70% infill. Prints on PLA( Version 2 recomended) to casting on zamak or aluminum foundry by lost PLA technique. 1 wall thickness 15% Infill. Remember to add the percentage of reduction of the metal with which it going to make. Update 10/01/15 Version 2 General improvments. For those who use it directly on plastic. -Was added space for installing nuts on the tower. -Tool Holder, closed for improved strength. -Nuts for leveling up, redesigned for easy printing.