Had some students who were working on a Medical-based project for a Technology Student Association project and needed an anatomical heart and pacemaker. We found a Heart here on Thingiverse, but needed to create our own pacemaker and did so via Autodesk Inventor 2015. Note: After printing each item, we then took a soldering iron to create holes, inserted two 12" copper wires and hot glued them in place, to create the final product.Pretty straight forward: In Inventor, we started with an oval, then added a rectangle, dimensioned the top line to 1" in legnth, trimmed and extruded to 1/4" thickness. We then applied an 1/8" Fillet to all edges to make smooth. Inventor file is available for modification.