Archive for the ‘CNC Machining’ Category

On Day 6 we learn about CNC Machining. This is where the rubber hits the road. Before this, we did virtually everything on the computer. Now we move into the real world. Machining is about removing material from a piece of stock until we finalize our parts.
One thing we learn is that manual machining and cnc machining have similar issues. There is coolant, chips dust and dirt no matter if you are operating the machine or the computer is operating the machine.
CNC Machining safety is important during this step. We need to wear safety glasses, protective equipment and appropriate shoes.
There are many different types of CNC Machines and types of machining. There are cnc routers, cnc lathes, cnc mills, cnc plasma cutters and on an on. Each of these types of machines operates in different ways and you must learn their differences to be effective.

Tomorrow we go over various CNC Produced Parts and Projects. We look at the outcome of all out work and some of the possibilities.

http://www.cncinformation.com

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Want to know the difference between CNC and PLC.

CNC stands for Computer numeric control, and is usually associated with a lathe or milling operation that requires device position feedback for proper end effector control. This type of device generally is used to perform sequential operations by a preset program.

A PLC or Programmable logic controller ( a.k.a Programmable Controller, PC ) performs a job based on ladder logic. This means when a input condition is met for a given line a output condition is set. These are usually found in applications with conveyor systems, or repetitive tasks that follow one another. Most often the PLC is interfaced to external drive controls or higher power relays to control the process.

Batch/Recipe control in food, plastic, or metal casting processing are common place for PLCs .

Hopper puts one ingredient in, next hopper puts next ingredient in after first, then mixer starts , next burner, then dumped out.

CNC machines can use PLC’s within them for things like conveyors, machine doors, part loading, etc..

Both devices are used in a host of applications with PLCs being used almost in every industry known to man.

Although I HATE to use Wiki both of these articles are accurate to my standards and i would recommend them for reading.

Kabuto, samurai helmet, machined by Tomco, with Sescoi’s CAM/CAD software WorkNC.

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I need the list of cutters used in CNC machines. like single point cutter with tungsten carbide insert, or etc.,,

Google is an excellent site to try if you dont get any answers

cnc spring forming machine-making 5.00mm spring with the use of servo spinner

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I want to build my own cnc machine, and am not having any troubles with the design or mechanics of it, but I am unsure of what exactly the controller does and how it does it. Is there port progamming involved, how does this control the step motors. Any help out there?

Controls are very complicated things, and are not something a single person can implement without a lot of effort. The control interprets the g-code either created by a CAM program or written by hand, and turns that into the appropriate commands to the servo drives or steppers.

There are PC based control systems that can be had for free or low cost, such as Mach3 and EMC. EMC is open source, and if you are interested in mucking around with the internals you may. If you are only looking for a control to add to your hardware, there are many more options.

Systems like Fanuc and Yasnac can be had at a far greater cost, for commecial CNC machines.

cnczone.com is an online forum for people who are building CNC machine tools, and will have many more resources for control and drive systems.

Here’s a video of my first home made CNC machine cutting out my first thing! You can see the progress of my building it at http://www.backyard-workshop.com – although it’s done and so is CNC machine #2 – check them out at my site!

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A friend of mine worked an a CNC machine for many years. He now want’s to learn how to do the programing.

I guess Autocad is the program he will use.

Is this a specialized degree or training?

Thanks

Well, you need to understand G-code, the programming language of CNC machines.

The best place to start would probably be a diploma in manufacturing, probably in the aerospace field.

If he wants to study more, he could do some mechanical engineering and learn this (and much more)!

Good luck!

Matsuura LX0 5AX, a 5 axis linear motor CNc machine capable of 90 metres a minute feedrates & possessing a 40,000rpm Spindle. Ultra High Speed machining at its best.

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Routout CNC – Z90 Milling PCB

Contact Routout CNC sales on Telephone number UK 01269 841230 or Visit www.routoutcnc.com

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