The unconceivable desktop CNC machine

Imagine a CNC machine, that could be manufactured from largely 3D printed parts, cost ~$400.00 to build, has the build plate of a bambu lab H2D printer and that could sit on your desk. This CNC machine should be able to connect to devices via bluetooth, cut anything from plastic, wood, aluminum and light steels. This is what I am setting out to do- a personal manufacturing hub for the everyman.

Electro-non-magnetic generator

Classical motor generators, used in applications from nuclear powered steam turbines to wind powered turbines, require vast amounts of rare earth materials, copper and ferromagnetic iron alloys, to generate electricity. Furthermore classical generators are heavy, bulky and rely on a vulnerable supply chain of rare earth elements. Innovating and improving existing solutions to mitigate these problems is crucial to creating energy systems that are more sustainable, more efficient and support a more independent national economy. In my attempt to mitigate such problems I am designing a PCB motor generator, that uses solar powered electromagnets in substitute for permanent magnets, and that uses copper coil routes in place for inefficient windings of copper coils. Such a generator uses significantly less copper, and does not require rare earth elements such as neodymium to produce electricity. The final prototype should weigh under 10 grams, be pocket sized (max diameter of 80mm), generate 5 volts to power a small rechargeable coin cell battery and be spun similar to a paper centrifuge. Hi, my name is Niam, I am currently live in Canada and am in grade 10. I have been working on this generator project for over a year, where I participated in the "Bay Area Science Engineering Fair. I have only recently started this PCB chapter of the project with the help of Hackclub and Blueprint.