Low-cost plate shaker
prusaprinters
<p>We needed an inexpensive and compact plate shaker for our anaerobic chamber. The Crickit Lab Shaker, remixed by DotScott1, was the perfect inspiration!</p> <p>I modified the original Crickit project to use the same inexpensive electronics as DotScott1's remix, but with a few modifications to fit our needs. The case is changed from three parts to two, with the entire upper part of the case a single print, and with all of the electronics mounted to the top. The bottom case panel now includes places to press-fit neodymium magnets to help prevent the shaker from moving around, and can be screwed firmly into the top case with countersunk machine screws. There's now also a nifty printed 'volume' indicator for the PWM potentiometer. :)</p> <p>To save space in the incubator, these are all powered off of an Amazon USB charger with right-angle USB connectors. I tested to ensure that the charger would supply up to the 1.2 A stall torque for the DC gearmotor.</p> <p>Check the included Excel spreadsheet for order links and prices.</p> <h3>Print instructions</h3><h3>Category: Biology Summary</h3> <p>We needed an inexpensive and compact plate shaker for our anaerobic chamber. The Crickit Lab Shaker, remixed by DotScott1, was the perfect inspiration!</p> <p>I modified the original Crickit project to use the same inexpensive electronics as DotScott1's remix, but with a few modifications to fit our needs. The case is changed from three parts to two, with the entire upper part of the case a single print, and with all of the electronics mounted to the top. The bottom case panel now includes places to press-fit neodymium magnets to help prevent the shaker from moving around, and can be screwed firmly into the top case with countersunk machine screws. There's now also a nifty printed 'volume' indicator for the PWM potentiometer. :)</p> <p>To save space in the incubator, these are all powered off of an Amazon USB charger with right-angle USB connectors. I tested to ensure that the charger would supply up to the 1.2 A stall torque for the DC gearmotor.</p> <p>Check the included Excel spreadsheet for order links and prices.</p> <h3> Print Settings</h3> <p><strong>Printer:</strong></p> <p>Railcore II 300ZL</p> <p><p class="detail-setting rafts"><strong>Rafts: </strong> <div><p>No</p></div><strong>Supports:</strong></div></p> <p>Yes</p> <p><p class="detail-setting resolution"><strong>Resolution: </strong> <div><p>0.2 mm</p></div><strong>Infill:</strong></div></p> <p>15%</p> <h3> <strong>Filament:</strong> Prusament PETG Carmine Red <br/> <p class="detail-setting notes"><strong>Notes: </strong> </p><div><p>All parts were printed without supports, except for the linkages. Note that you need two idler linkages per shaker!</p></div> Post-Printing</h3> <p>Assembly is pretty straightforward, and mostly follows the instructions from the original Adafruit build. I used nuts, washers, and blue Loctite for all screws except the blind-end holes for mounting the base and the circuit board.</p></p></p>
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