Step 1: Gather Files
Drag a downloaded file into the model window of MakerBot's ReplicatorG software.
If you don't have a 3d printer, you can still have the files printed at a commercial 3d printer.
Note that if you have two extruders (the more expensive model), you can choose to use the left extruder (drop down menu item on first check box) if you so desire.
Select "Generate Gcode."
Step 4: Picky Stuff
About the 20th line down in the Gcode list is a line "M109 S100 T0" Change the "S100" to "S115". Choose "File, Save."
Keep the "gcode" tab selected.