In case you require a smooth, unblemished end for the parts, we advise deciding on a secondary complete: grained complete (can only be placed on the outside of machined enclosures due to geometry) or powder coat. CNC machining also will help during the prototyping and production of purchaser electronics. https://dmg-mori-machines92231.bloggactif.com/35720879/what-does-cnc-precision-milling-for-high-precision-work-mean