Coast Runner, is a new entrant in the desktop CNC milling industry, promising to make the technology accessible to everyone, from professionals to hobbyists. Coast Runner is breaking down the barriers of traditional CNC milling with a focus on power, compact size and, most importantly, education.
What is CNC milling?
CNC milling is a subtractive manufacturing process that utilizes computer-controlled machines to remove material from a solid block (known as a blank or workpiece) and shape it into a finished part. Here’s how it works:
1- CAD Model Creation:
- The process begins with a Computer-Aided Design (CAD) model, which represents the desired final product.
- This CAD model is then converted into a CNC program that guides the milling machine.
2- Machine Setup:
- The CNC milling machine is prepared by attaching the necessary cutting tools to its spindle.
- The workpiece (blank) is securely placed on the machine’s table.
3- Material Removal:
- The machine’s computer-controlled rotating cylindrical cutting tool moves along multiple axes.
- As it rotates, it progressively removes material from the workpiece, shaping it according to the CAD model.
- The toolpath, spindle speed, and feed rate are all precisely controlled by the CNC program.
4- Versatility and Precision:
- CNC milling is highly versatile and compatible with various materials, including aluminum, plastics, wood, and glass.
- The process achieves high precision, with tolerances typically ranging from +/- 0.001 in. to +/- 0.005 in. (some machines can achieve even tighter tolerances of +/- 0.0005 in.)