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Understand these are two different techs but would love to know what is not possible on a cnc but i could achieve on a 3d printer…or maybe in some scenarios maybe it is possible but the 3d printer would be better as its quicker etc ..
Any geometry you can design, can be 3D printed. CNCs, you need to think about DFM , for instance, I can make a perfectly square hole that bends 90 degrees at the bottom on a 3D printer, but not on a CNC.
3D printer will be less mess and cheaper to operate (filament costs less than tools and metal).
A CNC will give you a lot more freedom in what materials you can make stuff from, and will give you better tolerances on the parts you make.
When compared to 3D printing, CNC milling does pose some minor disadvantages, including the following: Waste and mess: Because CNC machining involves cutting away material, the material removed from the finished part ends up becoming waste.
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