Martin Applebaum asked:


Do you know about CNC tube bending machines? These are designed in a fashion to minimize the time of set up and to maximize production. The CNC tube bending machines are available with many companies. Some of the companies have also launched CNC tube bending machines that feature electrical servo-drives on all axes and these are available in single as well as multi stack versions.

CNC tube bending machines with multistack benders facilitate complicated bending without the requirement of tool change. In case, you cannot apply a multistack tool for stability reasons, try to switch over to an automatic clamp die changing system that will easily accommodate up to eight clamp dies.

The CNC tube bending machines feature excellent bending procedures that are programmable and boosting via the transport carriage in conjunction with the boosting in the area of pressure die. The boosting tends to minimize wall thinning towards the outer bend that further facilitates narrow bending. You can easily achieve a radius of less than 1 x OD. Other important features of CNC tube bending machines include the following:



An MMI multicontrol 2020 system

TFT monitor

Touchscreen

Plausibility verification

XYZ coordinate recalculation into bending parameters

Flexible programming

Multitasking

3-D displays

Integrated modem

Access to the world wide web



The integrated modem and access to the internet works towards providing the best of remote maintenance and technology support.

The CNC tube bending machines has a bending template. This helps in bending the pipe as desired. The unbent portion of the pipe is supported on a pipe that supports rail carries. It is also adjustable in height. The adjustment of height can be easily done by a drive and it is best suited for step-less positioning. This easily sets the pipe-supporting rail to a height that is already specified by the CNC control unit. Before bending the pipe, the height to which the pipe has been moved, is determines via a functioning program that is dependent on a full set comprising of tool data that has been input into the control unit.

Here are the features specifications of a CNC tube bending machines:



Industrial PC control

I/O card machine control

Input of all program to industrial PC via touch screen

Input data of Y.B.C.

Input data according to Descartes X.Y.Z coordination to build bending parameter.

The profile of tube will display on the PC as per the built parameter or input data.

Servo-motor control that feeds axis-X as well as rotates Axis-B, and then bends Axis-C that’s derived via hydraulic pressure

Program transmits via flash disc, floppy disc or the World Wide Web.

Adopt windows XP Embed operation system.

Process of the function auto and manually

Operation via Pedal

Single step change via the operator



Automatic bending rebound numerical compensation data s per accurate measured data.

Gargi Nath asked:


A CNC machine cannot function without a program. And a program cannot make its way to the machine without an effective data transfer system. So, what are the methods of data transfer and how effective are they in conveying data from one point to the next?

Punched tape

The first data transfer method is the punched tape. It consists of a long strip of paper with holes punched in it to store data. The holes represent a set of data that tells the machine how to move and what to do.

This method has proven to be very versatile and very useful. It has proven to withstand the test of time as numerous magnetic storage devices have deteriorated over time even to the extent of being unreadable while punched tape has been shown to be fine decades and perhaps even centuries later. Repair is also not a problem as specially designed splices can put two end together virtually unchanged. Furthermore, punched tape can be visually decoded should the need arise. This means that human accessibility is also not a problem.

Floppy Disk

While punched tape is quite a long roll of paper, a floppy disk is a small magnetic storage device that is more space efficient than punched tape. It can also be used to store simple programs.

Floppy disks virtually revolutionized the way data could be stored and transferred from one point to another. It allowed users to store and transfer data faster than punched tape allowed. Furthermore, the data within a floppy could be easily edited at any point as long as you have the proper program to read it. However, this method has proven to be quite problematic in the long run as floppies have a tendency to degrade alarmingly fast. A floppy could be unreadable after only 3 years.

RS232

This method is actually a set of standards for serial binary signals that connects between computers, terminals, and modems. This is a fast and efficient way to transfer data.

This cable connects a CNC machine to a computer that has floppy disk support thus eliminating the need for punched tape. This allows the operator to input data remotely and even while accomplishing other tasks. However, it need to be used in conjunction with an effective data storage device so as to have backups in case of emergencies.

Networks

Networks are a set of computers that are linked together to make data sharing easier. In an industrial scenario, networks allow a number of different users to individually create a program for the machine to run on.

This method allows multiple users to access and transfer data remotely. This allows for a faster and more efficient check-and-balance system for the programmer and the data verifier. Furthermore, different parts of the program can be completed by different programmers and then compiled by one user. This makes program creation a fast and easy process.

Manual Data Input (MDI)

MDI allows users to input commands directly into the CNC machine’s memory. This may seem to be an effective way of telling the machine what to do but it actually has a lot of drawbacks to it.

Despite it being the fastest way of telling the machine what to do, it is also a very risky and tedious operation as it requires the use of the machine’s terminal. Furthermore, the construction of a program is not as fast as opposed to the network method. It only allows one user to access the machine thus making it a long and drawn-out process.

Another disadvantage that comes with MDI is that it limits the operator to only one task at a time. However, MDI allows the most control over the machine compared to other methods.

Martin Applebaum asked:


Building a CNC machine means that you would require a lot of tools, parts or different components. Many are built using CNC kits. These are many types of components that need to be put together in order to build a CNC machine.

When building a CNC Machine you need to make a decision on whether you would like to use a stepper or a servo setup. Now, This is one of the most debatable topics in CNC. One tends to get quite confused on what to use, and when to use and why one is going exactly the way it has to be. The fact is that every motor type is capable of providing varied advantages over the other. This actually depends on your applications.

You would require the following in order to build a CNC machines. All the components mentioned below are usually contained in CNC kits readily available on the markets.

a) Printed Circuit board (Industrial Quality)

b) Drilled solder mask and serigraphy

c) High end electronic components

d) Hexagonal mountings

e) Parallel wires connection cables to PC

f) Connectors to build extension cables to motors

g) Identical stepper motors

h) Software for CNC configuration

i) Manual with step by step guide

j) Power supply 12V 4A

k) Transformer, Diodes electrolytic cap to build your own power

Some tips on purchasing component and building CNC Machines



Tip 1. Make sure that you purchase multiple sets of CNC machine plans

Tip 2. Look through the plans carefully

Tip 3 Decide on overall size of the CNC machine that you would like to build.

Tip 4 Order all of the part of the machine prior to actually beginning to build the CNC machine.

Tip 5 Have a good CNC machine building plan in hand prior to actually starting to build.

Tip 6 Take some tips from the professionals or the experts in this field.



Here are some tips on assembling a CNC machine router Kits.

You can easily build a CNC machine on your own via using a CNC machine router kit. All you required to have is some knowledge about the machinery mechanics or electronics. You also need the instruction and precautions prior to using each tool.

There are also many video tutorials available online in order to assemble a CNC router kit. This lets you set all in a short span of time. All you require to do is to follow the instructions these videos provide to you.

If you are looking for the latest and best CNC machine kit available on the market, go for the CNC Machine version 1.2 kits. Most kits you find on the market these days used varied plans and papper instructions in order to help in the assembly.

You may also take help of a professional or anyone who has already built some CNC machines in this regard.