Cable spool holder
thingiverse
I recently whipped up some cable spools that I'm really excited about for my electronics lab: http://www.thingiverse.com/thing:1077633. Now that I've got those working smoothly, I built a holder to stick out from the edge of a shelf or table, making it super easy to grab whatever prototype cable I need. The spool holder is screwed into the spot where my instruments reside. It's placed 20cm above the table top and 60cm away from the shelf's edge. My shelves are made of 30mm thick material and have openings on these brackets that measure 32mm wide. To ensure this thing doesn't slide off, I slapped some rubber pads onto each bracket.
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