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Now, highlight aluminum in the material properties window and select Create/Edit.... We are not using aluminum in this simulation, so we need to change the name and the properties to reflect copper. In the popup window, change the Name to Copper, and the Chemical Formula to Cu. Also, change the material properties to the values shown in the chart above.

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Now, press Change/Create. You will be asked if you want to overwrite aluminum, press Yes. You may now close the popup window.

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Now, we need to create a new material. In the Materials window, highlight Solid and press Create/Edit.... Notice that the material properties for copper appear in the popup window. This is OK, but we need to remember that we do not want to overwrite the copper data. Rename the new material ABS and for simplicity, also enter the Chemical Formula as ABS. Enter the material properties for ABS as shown in the table above.

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