Solderless Breadboard Extendr

Now you can use your 3D printr to save even more money by buying a $50 protoboard and surgically implanting a $10 protoboard off Amazon to get the equivalent space of a $100 protoboard with the help of this Thing!
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I needed a protoboard/breadboard with 4 boards for a project, and accidentally bought the 3 board model for half the price not realizing it only had 3 boards, so I hacked up a single board I had lying around, and with the added support this structure provides, I was able to c