3D Milling is precision work and requires experienced machinists with years of production know-how. In fact, it is a special process and when you hire a shop for these services, it’s vital to receive high-quality work. It is important to hire the right shop for your needs and here is more about the process of milling in 3D.
What is Three Dimensional Milling?
When you mill material it is usually for the purpose of making it smaller so it can be cut into a special shape. For many years, milling was a 2-dimensional process and this did not require sophisticated equipment. However, as parts became more complex, three-dimensional machining became more and more in demand.
Why 3D Machining?
Certain parts require three dimensions. For example, if you have ever looked at a blower fan which fits atop some tractor motors you will see a round piece of metal with fins. In order to produce this part, the fins have to be cut into the metal, essentially forming a round flat plate with cooling fins. As the flywheel of the engine turns, the fins turn and this cools the engine of an air cooled lawn tractor motor. Blower fans are only a small part of 3D milling today and there are many other industries which have the need for specialized parts.
CNC and 3D
Thanks to modern technology, machining on three planes is greatly simplified. For example, with computer operated machines, each axis can be individually controlled and programmed to perform a specific duty. In fact, some machines can perform a number of tasks to create parts with shafts, slots, holes and other components of a one-piece metal item. These kinds of parts could be produced in the past but not with the speed and precision they are made with today.
2.5D vs. 3D Milling
You may have heard of 2.5D and this is different than milling in three dimensions. For example, a two-dimensional part or object may be carved out to make lettering or images stand out. This is not true 3D but at the same time, it is not 2D either. 2.5D is often used to provide depth to flat objects like signs or anywhere you need a more dramatic effect than a simple flat item.
Whether you need 2.5D or true 3D milling, it’s important to use reputable machine shop with many years experience in the business. This gives you the best materials and workmanship.


