We share information and tips we’ve learned from our experience in the CNC machining and sheet metal fabrication industry.
Engineering drawings look complex because they combine views, dimensions, notes, abbreviations, and engineering drawing symbols on one controlled document. Every mark tells engineers, machinists, CNC programmers, inspectors, and suppliers how a part must be sized, shaped, finished, checked, or assembled. When one symbol is misunderstood, the result may be incorrect tooling, wrong tolerances, rework, delays, […]
Counterbores and spotfaces are both flat-bottomed circular features added around an existing hole, but they solve different design problems. A counterbore creates a defined cylindrical recess that receives a fastener head or another cylindrical component. A spotface removes only enough material to produce a clean, flat seating surface around a hole. Because their profiles can […]
CNC machined parts may meet dimensional requirements yet still assemble poorly when sharp edges, misalignment, or unfinished transitions are ignored. A bevel solves many of these edge-related problems by changing a square corner into a controlled angled surface. A bevel is an angled edge or surface that is not perpendicular to the main faces of […]
A spherical surface is a three-dimensional curved feature whose points ideally share one radial distance from a defined center. It may form a complete ball, an external dome, an internal socket, a spherical seat, or only a narrow contact zone. Although the geometry is mathematically simple, machining it can be demanding because tool contact, cutting […]
A CNC machine can follow programmed toolpaths with remarkable repeatability, but the machine still needs a clear definition of what the finished part must be. A manufacturing drawing provides that definition. It translates design intent into controlled dimensions, tolerances, materials, finishes, notes, and inspection requirements that can be understood by estimators, CAM programmers, machinists, and […]
A deep pocket is a recessed internal feature whose depth makes tool access, rigidity, cooling, and chip removal significantly more difficult than in ordinary pocket milling. It appears in lightweight structural parts, housings, molds, fluid-control bodies, fixtures, and many other machined components where material must be removed without opening the feature through the opposite side. […]
Threads are among the most common functional features on CNC machined parts, yet the phrase “types of threads” can refer to several different classifications. A designer may mean metric versus Unified sizes, V-shaped versus trapezoidal profiles, internal versus external threads, straight versus tapered pipe threads, or right-hand versus left-hand rotation. Each choice affects load direction, […]
© 2006-2025 Shenzhen Tuofa Technology Co.,Ltd. All Rights Reserved.
Privacy*
As with all our customers, confidentiality remains vital in demonstrating our commitment to customer service. You can feel reassured that we will gladly complete disclosure forms for your applications and your applications will solely be used for quotation purposes.