Design solutions using milling machines

Not the most obvious use of CNC machines is the manufacture of small architectural forms: stairs, fences, sculptures, fountains, outdoor lighting fixtures, stands for posters and advertisements.

One of these areas where I personally didn't expect to find the use of CNC milling machines ( https://virmer.com/catalog/cnc-milli...090/#gallery-2 ) is the production of stencils for some kind of advertising inscription, logo, slogan, etc. It is cut out of plastics or thin sheet iron, after which this information is placed on walls, fences with the help of these stencils with the help of spray cans with paint, pillars, or on the ground surface. It turns out such an uncomplicated, but very visual and competitive advertising of someone's services, goods, etc. CNC milling machines are directly involved in creating replicas (layouts) of real weapons.

What was yours the most unusual and difficult work on the machine?