Multiwell plate stir bar dispenser (96-well plate)
thingiverse
EDIT2: Upgraded the chamfer on the drop plate for improved stir bar loading. Device designed to dispense stir bars into a 96-well plate containing glass shell vials, commonly used in screening chemistry applications. Fits glass shell vials with an 8 mm diameter; holes for stir bars are precisely sized at approximately 3.5 x 6 mm. Assembled using cyanoacrylate glue; knobs and drop plates feature 2.5 mm holes, which were manually threaded with a 4-40 screw; the screw was carefully cut to length and paired with a compression spring, added before the knob to create a spring-loaded mechanism. Minimal supports are required, except for the stir bar slide out; consult printing notes for valuable tips and recommendations.
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