Automatic parts counter - GIF

Automatic parts counter.

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Previously:

<div style="display:inline-block; white-space:normal;"><span style="display:inline-block; text-align:center; vertical-align:top; width:150px; margin:0 15px 20px 0;"><img src="https://homemadetools-images.s3.amazonaws.com/hmt/1655166684_transparent_mechanical_counter_thumb.jpg" style="width:150px; height:100px; object-fit:cover;"><br><span style="display:inline-block; height:60px; overflow:hidden;">Mechanical counter</span></span></div>

Does not really seem automatic. There have been mechanical counting balances around for decades. More recently digital count by weight devices are more common.