Using a computer mouse day after day can be a bit cramp-inducing, so to help take the strain off Logitech is launching the MX Ergo, its first trackball in years. The device has been refined from ...
A guide from Instructables member Elgatoandaluz shows you how to create your own trackball using a cardboard case and parts from an optical mouse and a deodorant stick. First, take the top portion off ...
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