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CNC Milling Machine Parts

February 27th, 2010 admin No comments

When you are looking for CNC milling machine parts and components there are a variety of places where you can find them. There are many Internet sites and the machines come in a variety of prices.

Depending on the type of machine you need the price can be steep but there are many small machines that can do the same job if you are looking at this as part of a small business or a hobby. Also, you can buy a machine to cut metal or wood, to do fancy scroll work or to do engraving on metals and other applications.

You can decide whether you will purchase a brand new machine or a used one. Most people do not suggest buying a used one because you aren’t sure what you are getting but buying other types of machines like CNC routers seem to be a good idea because of the cost.

All CNC Milling machines contain the following parts:

-Axis — depending on the type of CNC milling machine it could have anywhere from one to six axis which will also determine the size and what it is supposed to do.

-Column — the column is what travels along an axis that holds the part that mills or cuts.

-Control panel — the part that holds the computer keyboard (sometimes small, other times large) where you program the G-Codes into the machine.

-Cutting tool — the cutting tool is attached to the column and is the part that actually cuts the piece in the way that the operator specifies.

-Spindle — the spindle holds the cutting tool in place.

-Coolant supply tubes — these are the tubes where they coolant is pumped through in order to keep the metal cool and the cutting tool lubricated.

-Table — the table is the area that the workpiece will be attached to either using a clamp or a vacuum. This is where the workpiece will sit while being milled.

There are several different types of milling machines that can be found and they are small or large depending on what they do. Here are a few:

Vertical CNC mills have a vertical spindle axis. This means that the cutters that do the milling are held vertically in the spindle and they rotate on the spindle’s axis. In this type you can extend the spindle or the table to make drilling or plunge cuts. Bed mills and Turret mills fall into this category.

Horizontal CNC mills have the same type of table as vertical CNC mills but their cutters are mounted on an arbor that sits across the table horizontally.

Hobbyists will most likely use a box mill which is mounted to a bench and basically moves up and down. Knee mills have an x-y table and its moves up and down the column. It can be adjusted with what is called a vertically adjustable knee. Many larger industries use the C-Frame mill because it is the most conducive for larger work. They are only vertically mobile and it used a fixed spindle head for that movement.

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Mini CNC Milling Machine

February 22nd, 2010 admin No comments

You need to know all about a milling machine before you go and buy one. You need to know exactly what kind of milling machine you need.

Mini CNC Milling Machine

Mini CNC milling machines are pretty close to their grown up counterparts except on a much smaller level.

The mini milling machines are pretty much designed off of their manual milling machine relatives but incorporate the Computer numeric controlled technology and robotic technology.

The mini mills are great for small projects such as model making. These machines are designed to handle smaller projects that are more of a one run deal, although you can use the computer program to run the plans as much as you want while still maintaining the same precision that will meet the projects expectations.

The mini CNC used milling machines are designed to stand up to long term use as well, just like the bigger machines. Basically, the only difference is the size and the size of the projects that these machines can handle. They are usually desktop or tabletop machines that can be easily moved if needed. The rpm factor on these machines is of course a lot slower than the larger machines; however, some of them can still incorporate 10,000 rpm for your project.

This type of computer controlled machines used to be generally out of reach for most of the small shop owners and hobbyists. A larger scale machine can cost anywhere between $10,000 dollars and upwards of a few hundred thousand dollars. This was just way too expensive for any small shop or individual to purchase. Then a few people started using their knowledge of machinery, computers, circuitry, etc to develop smaller homemade versions of the CNC machines. Now, CNC machines are available for purchase from many manufacturers in a variety of different sizes, including Mini CNC machines.

You can either purchase one of the mini CNC milling machines, but plan on spending a few hundred dollars to several thousand. If you do not have the extra money in your budget to purchase a brand new machine, you can find used versions of the mini CNC milling machines. There are also other options that you can consider. To begin with you could make your own or even purchase a kit where you put the machine together yourself. The kits will contain all of the necessary parts that you need in order to complete the project including, the motor, instructions and all bracketry.

Building your own could be an even cheaper way of acquiring a mini CNC milling machine. If you already have its manual counterpart, with the purchase of some parts which you can find on sale from manufacturers, you can build your own. It may take some time and is not as convenient as buying one that is ready to go; however, you will save money and feel a sense of accomplishment in the end. You will definitely have something to brag about.

The mini CNC milling machine can be a great addition to any shop and will help cut your time down by quite a bit compared to having to do it the manual way. You will not go wrong by investing in a machine like this.

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