Friday, October 31, 2014

This Carpenter's Spirit Lives On Through His Machine


In 1968, a man by the name of Alejandro de la Cruz Saucedo started a small family wood shop in the town of Jesus Maria, Mexico. With only a handmade circular saw and the premise of "Making Furniture with Conviction", Alejandro set out to create incredible works of Rococo style furniture characterized by the superior French craftsmanship of the 18th-century.

For over 45 years now, Mueblera Provenzal has been producing outstanding results in fine furniture and has become a pioneer of the furniture industry in the Municipality of Jesus Maria.

Ever since he first witnessed the amazing abilities of CNC manufacturing, Alejandro made clear his dream of one day adding a CNC Router to his shop, now located in a 60,000 sq. ft. facility in the center of San Antonio de los Horcones in Jesus Maria.

Sadly, Alejandro passed away recently and was unable to see his dream come true by his own eyes. After his death, Alejandro's wife set out to make his dream become a reality and honor his life long commitment to the company, his town and his family.

Last month, with much anticipation, Mueblera Provenzal welcomed their brand new MultiCam 3000 Router to their work shop and paid homage to the man they revered so much.

Check out these pictures from the installation ceremony!

MultiCam 3000 Router
MultiCam 3000 Router Machine

MultiCam 3000 Router Machine







Wednesday, October 22, 2014

How To Optimize the Cut Quality of Your CNC WaterJet With SigmaNEST

Feedrate edge qualities in waterjet cutting
In CNC WaterJet cutting, when we refer to the feedrate, we’re talking about how fast the waterjet moves along the material per minute. The faster the waterjet moves, the more quickly it will cut the material, but with increased taper. The slower the waterjet moves, the slower it will cut, but the edge quality with greatly improve. Optimizing cut quality with operational efficiency is a balancing act between desired cut quality, material type/thickness, and abrasive feedrate.
When a waterjet moves more slowly over a piece, more water and abrasive is able to erode the material, thus increasing the cut quality. However, the more abrasive you use, the higher your operating costs will be. Many operations will average about 0.7lbs/min of abrasive. When it comes to operating costs, the amount of abrasive used in waterjet cutting is the single largest contributor. It is therefore important to ensure that you’re only using the absolute minimum amount of abrasive that you need for your cut.
To do this, think about the type of cut you’re trying to achieve. Do you require a very smooth cut, with perfect edge quality and negligible taper? Or perhaps you require merely a separation cut, where the edge quality isn’t nearly as important. SigmaNEST has a very simple way of choosing the level of cut quality you require for your job. This is an especially handy tool when your part does not require the same level of quality on all sides.
Feedrate control for waterjetMerely click on the cut line in the dashboard and click on the quality tab. This will allow you to choose from 1 (fastest cut speed, separation cut quality) to 5 (slowest cutting speed, smoothest edge). Having greater control over the quality you choose for each edge on your part means that you’re not wasting abrasive (and operating time), when a lower quality cut could do the job just as effectively.
Proper feed rate control for waterjet cutting is just another way that SigmaNEST software helps you not only cut better, but smarter.

Wednesday, October 8, 2014

What Are The Key Functions of a Plasma Electrode?

With today’s long-life oxygen cutting technology, CNC plasma systems are the most productive, cost effective way to cut carbon steel from gauge to 1 1/4” thickness. But to get the highest performance, operators need to ensure the consumables in the torch are inspected and maintained to high standards. To do that, a good understanding of the features and functions of each consumable is paramount to getting the most out of your machine.

The primary function for a plasma electrode is to provide power to the plasma arc, connecting to the negative output from the power supply. The plasma electrode’s secondary function is to conduct high voltage (aka, high frequency) energy during the starting sequence, adding energy to ionize the cutting gas, thus allowing the plasma arc to start. Since the electrode is the main contact point for the plasma arc, it gets very hot. As a result, the end emitter on an oxygen electrode, made of the element hafnium, can reach temperatures exceeding 3000 degrees F. In general, most plasma cutting electrodes used at over 100 Amps of cutting current are liquid cooled, as opposed to gas cooled in smaller mechanized and hand held plasma systems.hafnium emitter in plasma electrode
So what are the plasma electrode’s critical features? First of all, the hafnium emitter is the single most important part for the electrode. Since hafnium is a poor thermal conductor, it is bonded to the copper body of the electrode using a proprietary process that ensures an excellent thermal and electrical connection. Hypertherm electrodes use a patented process that matches the diameter of the hafnium emitter to the power level it is designed for, ensuring the most efficient heat transfer. Another very important factor to ensure cut quality is repeatable dimensional stability, where the electrode fits up well to the other internal torch components. If you have the incorrect length or diameter it will dramatically affect alignment and impact the cutting quality.
hollow milled post in plasma electrodeThe second critical feature for the plasma electrode are the very accurately machined bore and step, which insure superior cooling as a result of perfect alignment of the coolant tube to the hollow milled post in the electrode bottom. As well, alignment can provide for very concentric coolant flow around the high temperature hafnium emitter.
locating shoulder on plasma electrodeAll Hypertherm electrodes have a laser etched part number and a batch code clearly marked to ensure proper part match-up. And the threads and locating shoulder are designed to ensure perfect concentricity with nozzle and swirl ring when installed in the torch.
coolant tube around plasma electrode
Finally, the key feature of both the electrode and torch design is a floating coolant tube. How does the floating coolant tube work? The tube is loosely installed in the torch and when the electrode is installed the coolant tube self aligns and positions itself to the internal features of electrode. The coolant enters at the top of the tube at relatively high pressure and is forced through a tight fit around the hollow mill of the electrode. In the end, the squeeze increases coolant velocity, effectively causing the coolant to strip away steam buildup around the hot hafnium, for very efficient heat removal.

For a one stop shop of all your consumable needs, be sure to drop by the MultiCam Store today!


Thursday, October 2, 2014

What Does Modern Manufacturing Really Look Like?

MultiCam CNC Machines

The vast majority of American's today have a very skewed outlook of what modern manufacturing really is. We often recollect images of rough, down trodden workers slaving away in hot, miserable conditions for hours on end until they are freed by the sound of the whistle.

Ask any student today, "Would you rather work for a manufacturing company or a tech company?" Most, if not all will answer the latter. Why? Because tech is cool. Tech is smart. Tech creates images of clean facilities with endless possibilities of grander and prosperity.

But what if I was to tell you that the coolest, most technological company in the world is, at its heart and soul, a manufacturing company.

When we talk about Apple the story that gets lost is, at the end of the day they manufacture products. The iPad, iPhone and Macintosh didn't just come to be with the snap of a finger. These products are the end result of taking intellectual ideas and figuring out a way through processes and technology, how to build somebody's idea.

With more and more factories complaining about a shortage of skilled workers and baby boomers
retiring at a rate of nearly 10,000 a day, there has never been a more important time in our history to raise awareness among the young and expose them to what modern manufacturing really is, and more importantly, what it isn't.

Tomorrow is National Manufacturing Day and I challenge everyone from students to educators to legislators and citizens from every community to take part. Go into that manufacturing facility that you have driven passed thousands of times on your way to work or to school and take a look at what is really going on inside.

When you do, you will see an environment that is innovative and technology driven. There is engineering, math and science. You will find a place where all of these things come together to make great products.

MultiCam CNC Table
In terms of all the geopolitical events taking place around the world right now, it is definitely in our nation's best interest to be able to have manufacturing capabilities. We need to be able to attract people to pursue these careers and to be interested in starting a manufacturing business and to seek all the options and opportunities that manufacturing provides.

To learn more about MFG Day visit www.mfgday.com 


Not able to make it to one of the events? "How It's Made" will be running an all day marathon on the Science Channel Friday Oct. 3rd. This is a great way for families to introduce their children, maybe for the first time, to what manufacturing is and what it's about.

Witness the innovation, the technology, the smarts and the bright people responsible for making the products we use. 

Friday, September 26, 2014

Why You Should Add a Digital Finishing System to Your Business's Workflow


All too often print service providers buy equipment based on what they are producing today instead of looking down the road as to what they may be producing in the future. With the ever increasing capabilities of today's flat-bed and roll printers, the vast array of materials on which graphics can now be printed on require a machine that can digitally finish the process.

No longer are business's in the printing industry buying specific machines for a specific job. Instead, they are seeking a machine that can quickly adapt to their growing productivity needs and provide a solution to their workflow. When companies begin investing in a solution instead of a commodity then the return on investment of both the digital printer and digital finisher begins to grow exponentially. When combined, this partnership of equipment can produce many different products for many different markets resulting in a margin of up to ten times that of producing just one product alone.

The influx of flexibility, as well as increased material savings and control over the production process will allow your business to grow and evolve as new market opportunities arise. Aided with this wider range of capabilities, you will be able to serve a broader market and soon begin reaping the profit potential that comes along with it.

Click HERE for more information on MultiCam's lineup of high-speed digital finishing systems or contact our sales department at sales@multicam.com

Also be sure to stop by booth #2458 at Graph Expo in Chicago, IL 
September 28 - October 1, 2014





Thursday, September 25, 2014

What is the Correct Tool for My Application?

So you’re looking at a sheet of shiny new material and you’ve got your part all mapped out. Your CNC router is ready to go but there’s one thing missing: the proper tool bit. LMT Onsrud, the makers of high quality CNC router bits, have outlined a series of questions that need to be answered before the best bit for the job can be selected. These questions are ones that we ask our customers every day so that we know we’re recommending the tool that has the ideal size, flute, and rigidity requirements.

First, what type of material is being machined?

This is the first and most basic question because it defines the type of tool material and geometry needed to perform the job. In terms of wood, some are natural woods; others are man-made composites or combinations of both. Plastic and aluminum have characteristics of hardness and softness, which dictates tool material and geometry. Consequently, the foremost question becomes how is the part material going to affect the tool material and the life of the tool?

What type of router is being used?

The use of a hand router or pin router dictates different tool choices than a CNC machine. The obvious difference is feed and speed capabilities and how various tool materials react in the cutting environment. Hand fed operations tend to be best suited to steel bodied router tools, which can better tolerate inconsistent feeds, while CNC machines enhance the toughness of solid carbide.

What is the material thickness?

Quite simply, this question leads to the selection of tool diameter and cutting edge length. Always choose the tool with the shortest possible cutting edge to cover the thickness of the part with slight overlap. Since diameter of tool increases rigidity, it is best to select the largest diameter possible, but the cutting edge length should be as short as possible and not more than three times the diameter (in a perfect world).

What is the part configuration?

The size, contour and detail in a part play a huge role in tool selection and tool life. For instance, large parts can be machined extremely fast and may react very well with a multi-flute tool. Conversely, a smaller part with tight radii would operate ineffectively with multi-flute tools by decreasing tool life because of slower feed and speed.

How is the part being held?

Tool selection is almost a moot issue if the part is not held solidly. MultiCam recommends a vacuum hold-down system for your CNC router or knife cutter. This ensures that both the material and the part stay still, increasing the tool life and the accuracy of the cut.

What influence should the tool have on the part?

Router tools come in straight, shear, spiral downcut, and a combination of up and down cut. They come in single flute through multi-flute in a wide range of diameters. All these characteristics have an influence on the part. For example, in a thermoformed part which is set up on a formed fixture, it is important to have no or neutral influence on the part to alleviate problems of pulling the part off the fixture. The larger diameter tools exert more lateral pressure on a part; smaller diameters do the opposite but provide less chip removal because of smaller flute area. Spirals move chips up or down and influence the part in the same direction. Influencing the part by tool selection is important and must be considered when selecting the right tool.

What is the most important consideration, speed or finish?

The selection on feeds and speeds specifically details the theory behind chiploads and tool life. Once the right tool for a job is chosen, the tool life is really a function of how the end-user fixtures the part and the speed and feed rate applied to the part. If chips are produced a significant thickness to dissipate heat, then tool life will be extended.
In summary, following these basic principles will aid in the tool selection process:
  • Match the tool with material and the application
  • Select a tool with shortest cutting edge length to cut through the part
  • Select the largest diameter possible to achieve rigidity
  • Keep cutting and shank diameter the same whenever possible
  • Select tools that accomplish the goal i.e. finish or speed
  • Select tools on the way the part needs to be influenced
  • Select multi-function tools i.e. compression spiral with mortise point
  • Select tools based on productivity rather than cost

For all your tooling needs and recommendations please contact our sales department at sales@multicam.com or call us 972.929.4070

You can also shop online at store.multicam.com