How to Machine Square Corners with CNC Milling

Designing parts with square corners is a common CNC machining pitfall. Check out some great design solutions below.

27
Mar

How to Machine Square Corners with CNC Milling


CNC Machining is a crucial manufacturing method for the production of a wide variety of high precision parts. All manufacturing methods have certain limitations regarding what features can and can’t be produced. This guide looks at the limitation of machining inside square corners and the different options available to engineers and product designers.

This guide will cover the following:
cnc part square corners

  1. What is CNC Machining?
  2. Can rectangular shapes be cut by a milling machine?
  3. Understanding the ‘Inside Corner’ problem
  4. Adding radiused corners (fillets)
  5. What is a dogbone?
  6. How to design parts for CNC machining

What is CNC Machining?


CNC (Computer Numerical Control) Machining involves a rotating circular cutter removing material from a workpiece in a subtractive process. The cutter’s path is determined by a CNC program which uses CAD data from a 2D or 3D file.

Top Tip: You can read up on Hong Kong Machining Services Inc.’s processes of CNC Milling & Machining here.