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How Do I Choose the Best Used CNC Milling Machine?

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  • Written By: Dan Cavallari
  • Edited By: Bronwyn Harris
  • Last Modified Date: 17 April 2018
  • Copyright Protected:
    2003-2018
    Conjecture Corporation
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A milling machine is a device used to remove material from a piece of metal, wood, or other raw material. Choosing the best used CNC milling machine starts with determining how the machine will be used and how often it will be in use. The size of the materials to be milled will also help determine what size of machine is necessary. You should consider how you intend to use the machine as well as where you intend to set it up to help determine the best used CNC milling machine for your purposes.

Aside from size, you will need to analyze the condition and function of the used CNC milling machine. CNC stands for computer numeric control, which means the machine is designed for use with a computer and computer programs. Choose a used CNC milling machine that either includes the computer and necessary software, or can be made compatible with an existing computer. The software used to operate the used CNC milling machine should be up to date and functional. If you are unfamiliar with the programs used to operate the machine, make sure the used machine includes a user's manual.

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Some machines are designed specifically to mill a particular material. Metal mills, for example, are designed for use specifically for use with metal raw materials, while a wood mill will be appropriate for carpentry. Make sure you choose the appropriate machine for your purposes, or choose a multi-purpose machine that can accommodate various materials. Think about looking for a machine that allows for easy changing of bits; some machines even include functions that will change bits automatically if the computer is programmed to do so. This cuts down on machining time, since you will not have to manually change the bits or monitor the progress of the machine constantly.

Whenever possible, buy the used CNC milling machine from a reputable dealer that offers a return policy or warranty. This is not always possible with used machines, but some dealers will stand behind the product for a set period of time. Keep in mind that even machines that are in fantastic shape can break down, so it helps to accommodate repairs in your purchase budget. Be prepared for a breakdown or for replacement parts in the near future by setting aside some money for such purposes. If you buy from a dealer, make sure that company can get a hold of replacement parts quickly and easily.

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