A cottage industry does seem to be within the realms of possibility, and 3D printing is an apt comparison. However, it’s likely to be prone to the same challenges - input materials (filament and wafers) will be subject to variable quality and environmental factors (moisture, heat, dust), and the machines themselves will take some time to mature (how many iterations of incompatible 3D printer ‘standards’ have cropped up in the two decades since DIY printing emerged in the scene?).
The nirvana of a household printing capability never really materialised.
The nirvana of a household printing capability never really materialised.