You might assume that you need a lot of expensive stuff to make your own PCBs, but that isn’t the case: you can do it with a vinyl cutter and a few common chemicals and tools. [Emiliano Valencia ...

[Abhishek Verma] saw an old inkjet printer and instead saw a smooth gantry and feed mechanism, the perfect platform to build his own DIY vinyl cutter. The printer was carefully disassembled.

You don't need any underlayment -- just a smooth, clean floor. Cutting peel-and-stick vinyl flooring is easy most of the time ...