Magnetic Stirrer + Stir Bar

cults3d

Be extremely cautious when using liquids near electronics to avoid serious damage. Plan ahead in case of a spill, work meticulously, and be prepared for any unexpected events. This updated magnetic stirrer boasts significant improvements over its predecessor. A powerful magnetic stir bar has been added, doubling or tripling the system's power without altering the fan design or adding extra components. To assemble the stir bar, you need to securely attach it using either glue or preferably PLA plastic friction welding (visit http://hackaday.com/2014/12/30/3d-printing-technique-friction-welding/ for detailed instructions). A vital spacer is inserted below the cover to create extra space between the magnets on the fan and the stir bar. Without it, the magnetic field would be too strong, preventing the fan from turning. Additionally, your fan may differ in design and your magnets might not be identical, so you might need to use a spacer or print multiple ones to stack them. Achieving consistent, reliable results requires patience and some trial-and-error experimentation with your stirrer. Moreover, ensure that the container used has as flat and thin a bottom as possible, as we've discovered that performance varies significantly between glass jars due to their thickness and shape. The SketchUp file provided contains both the original version and all updates. Here is the comprehensive list of changes: * Two 13mm nickel-plated neodymium magnets were added to the 80mm 12v DC fan. * A 1mm spacer was included for adjusting the height between the fan and the stir bar. * A stir bar featuring two 6x4mm nickel-plated neodymium magnets was designed. * A new cover was created that allows for easier removal when the power adapter is plugged in.