what mode switch position allows you to send the machine to its reference (home) position?

Some of the largest takedowns follow a series of large-scale, multi-agency investigations targeting telemedicine fraud and abuse. In fact, over the past two years, the DOJ, OIG, FBI, CMS, and U.S. Attorneys General across the country have pursued enforcement actions connected to billions of dollars in alleged losses.

Cycle time waster - While one of the benefits of constant surface speed is improved efficiency, it must be programmed wisely. If you work exclusively in the constant surface speed mode, the spindle will always be rotating at the appropriate speed - matching the diameter the cutting tool would be cutting. While this is great during each tool's cutting operation, consider what happens during tool changing. The cutting tool will rapid to a tool change position (usually a large diameter in X). During this motion, the spindle will slow down. Depending upon your spindle drive system's response time, it will likely take longer for the spindle to slow down than for the rapid motion to occur. If it does, cycle time will be wasted. The same is true during each tool's approach. As the tool rapids to a smaller diameter, the spindle speed will increase in rpm. This constant increase and decrease in rpm not only wastes cycle time, it wastes electricity and causes undue wear-and-tear on the spindle drive system. To program around this problem, most programmers will temporarily switch to the rpm mode just before the rapid motion to the tool change position, using a speed in rpm that is appropriate for the next tool's first position. In this way, the wasted change in spindle speed will not occur, and when the next tool is in position, the spindle will be running at its correct rpm. At this point the constant surface speed mode is re-selected with the proper speed in sfm.

G66 is one of the more misunderstood custom macro B commands. Fanuc calls it a modal custom macro call. It looks just like a G65 command....

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Poor workholding setups - Since speed in rpm is difficult to determine when working in constant surface speed mode, it should only be used when making adequate setups. Another reason why manual machinists tend to prefer working in rpm mode (and running at slower than optimum speeds) is that the workholding devices they've used on manual lathes (commonly manual three-jaw chucks) could not apply the gripping force necessary to run at optimum spindle speed. Most CNC turning centers use hydraulic three-jaw chucks that can supply the gripping force needed to run at maximum speeds. But if you're workholding device cannot grip with adequate force, of course, you cannot run at optimum speeds.

Out of round workpieces - If you machine a lot of castings or forgings (or any other kind of workpiece that doesn't run true in the spindle), you must be very careful with the constant surface speed mode. One of the reasons why manual machinists have trouble getting used to constant surface speed mode is that they cannot predict what rpm the spindle will be running. And if, for instance, you program the cutting tool to go to the spindle center in X, as is done when facing a workpiece to center, the spindle will run up to its maximum speed in the current spindle range. If working in the high spindle range, the spindle will run up to its maximum. For round, true running workpieces, this is acceptable. But if workpieces are at all out of round, the vibration set up by running too fast can be very dangerous. It can cause the workpiece to be thrown from the workholding device. Note that there is a special function that lets you set a temporary maximum rpm (G50 with Fanuc). But you must remember to use it (and know the maximum rpm a workpiece can be rotated without vibration).

when coordinates going into a program arespecifiedrelative to the program zero point, itiscalled

Current model CNC controls make it easy to create circular commands. You simply specify the direction (G02: clockwise or G03: counter...

This includes an April 2019 takedown that resulted in a slew of federal indictments against DME marketing executives and CMS administrative action against 130 DME companies involved in a telemedicine scheme, as well as Operations Double Helix and Brace Yourself, which implicated dozens of providers, CGx labs, and telemedicine companies in schemes that fraudulently billed Medicare over $2.1 billion – making it one of the largest health care fraud schemes ever charged. Many other takedowns targeting illegal opioid prescriptions have also uncovered large schemes connected to telemedicine.

For Fanuc controlled turning centers, G96, of course, specifies constant surface speed mode, while G97 specifies rpm mode. In constant surface speed mode, the spindle speed in rpm is automatically determined by the CNC control based upon the diameter a tool is currently cutting and the speed specified in surface feet per minute (or meters per minute in metric mode). This mode is only used for single point turning tools (boring bars, turning tools, grooving tools, etc.), when diameters to be machined change substantially throughout the workpiece. There are (at least) four benefits to using constant surface speed mode for appropriate applications.

The correct rpm for a cutting tool is based upon this formula: RPM=3.82*SFM/DIAMETER. If an accurate speed in rpm is to be used, the person calculating the rpm must first determine the tool's appropriate speed in surface feet per minute (note that the formula is different when working in the metric mode). Before a person can even begin to make the calculation, they must know the desired speed in sfm. This speed is published by cutting tool manufacturers and is based upon the material being machined and the material of the cutting tool's cutting edge. When using constant surface speed mode, the programmer simply enters the speed in the program directly in sfm (no need for any calculations). The machine will constantly and automatically perform this calculation, updating the spindle speed in rpm. One common reason why setup people and operators on the shop floor continue to use rpm mode -even though it is easier to use sfm mode - is that they have a background in manual machining. With manual lathes, there is no such thing as constant surface speed. Everything must be done in rpm. When a manual machinist is exposed to constant surface speed on a CNC turning center for the first time, the spindle will probably appear to be running much too fast (most manual machinists cannot run at optimum spindle speeds for obvious safety reasons). Frankly speaking, many manual machinists determine spindle speed in rpm by the seat of their pants, causing the spindle to run at a speed that looks good. Indeed, I've talked to many that never use the rpm formula given earlier - and some that have never heard of it. Many continue using the seat-of-the-pants approach even on CNC turning centers when it is safe to run optimum spindle speeds.

The button that will actually turn off the power to the machine toolis

As expected in a post-pandemic era, health care enforcement agencies have turned their attention to combatting telehealth and telemedicine fraud schemes. Over the past few months, The United States Department of Justice (DOJ), the HHS-OIG, FBI, and several U.S. Attorney Offices have announced enforcement actions involving billions of dollars in alleged losses, with a special focus on durable medical equipment (DME) companies and medical labs.

In August, an announcement from the U.S. Attorney’s Office in Michigan revealed regulators’ intense targeting of cancer genetic testing (CGx) labs and DME companies, as well as an ongoing investigation known as Operation Happy Clickers – named after the implicated providers who approved illegitimate orders with little to no review.

We are a small machine shop located in Ohio. I had read an article sometime back in your newsletter on this subject but I cannot remember which issue it was in. We do a lot of turning of parts that have changes in diameter. I have been trying to get the guys on the floor to use G96 for these parts but they have always programmed with G97. I have tried to explain the advantages as far as the increase of tool life as long as G96 is used properly but they continue to reject this mode. I was wondering if you could send me a list of the benefits between using G96 instead of G97. Also if you could include how this affects the feedrate on the part. I appreciate anything you might be able to send me on this topic. Thank you. Mike Stephens

Again, feedrate is directly tied to spindle rpm if you're working in per revolution feedrate mode with constant surface speed. The faster the spindle runs, the faster the tool will machine. So when you're working in constant surface speed mode, cycle time is inversely proportional to spindle speed in rpm. The faster the spindle runs, the shorter the cycle time. Since most machinists working exclusively in rpm mode tend to error on the side of caution (commonly choosing an rpm that is much slower than it must be), cycle time will be longer than it should be.

What mode switch position allows the activation of a single CNC command

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Nov 13, 2017 — A form tap in 6061 Aluminum should be at around 180-250 SFM so the 5,000 RPM recommended is right on and is a great starting point.

the button that will reactivate the cnc program after temporary stoppage is.

The Happy Clickers investigation, which involved parallel criminal and civil investigations, is ongoing and regulators are seeking involvement from whistleblowers.

In September, the U.S. DOJ announced criminal charges against nearly 140 defendants across the country for their alleged participation in fraud schemes responsible for over $1.4 billion in losses.

Actually, the choice between whether the Imperial measurement system or the Metric measurement system is initialized can be done on the...

what mode switch position allows programs to be modified?

Seco spot facing mills are cutters for milling spot faces of blind and countersunk holes. Key benefits include smooth cutting, reduced spindle bearing wear.

Which on off switch worksinconjunction with a slash codeinthe program

If you operate in the telehealth space, legal counsel is vital to properly evaluating your arrangements and ensuring compliance with federal health care regulations and any applicable safe harbors and exceptions. Our health and medical law team at Hendershot Cowart P.C. has decades of experience counseling physicians, DME companies, lab owners, and other physicians and non-physicians in a range of proactive and responsive regulatory matters. We’re available to help clients across Texas and beyond.

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According to the U.S. Attorney's announcement, the schemes involved marketers who would call and solicit Medicare patients, often from call centers overseas, for medically unnecessary braces and cancer genetic testing for screening purposes. After paying medical providers, typically through locum tenens (temp work) companies, to review and sign the orders via telemedicine, the marketers would then sell the signed orders to the owners of DME supply companies and labs in violation of the Anti-Kickback Statute.

In the waning aftermath of a pandemic that has spurred a surge in telehealth services, there’s no question that federal regulators will continue to protect Medicare and Medicaid program integrity through calculated takedowns, audits, fraud investigations, and whistleblower / qui tam claims. These actions can subject defendants to sizable settlements and fines, Medicare exclusion, and severe penalties under the False Claims Act (FCA), Anti-Kickback Statute (AKS), Stark Law, and EKRA. In some cases, they put significant prison time on the table.

Four providers named in the release, a nurse practitioner (NP) and three doctors from Michigan, agreed to resolutions in which they admitted to signing unnecessary orders to the tune of over $7.3 million.

Healthcare providers: Are you concerned about telehealth or telemedicine compliance? Call (713) 909-7323 or contact us online to schedule a consultation with an experienced health law attorney.

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According to the DOJ press release, a whopping $1.1 billion of those losses involved schemes in which telehealth companies paid physicians and NPs to order unnecessary DME, genetic and diagnostic testing, and pain medications with no patient interaction or only brief telephone-only consults with patients whom they had never seen or met. DME suppliers, labs, and pharmacies then purchased orders in exchange for illegal kickbacks and submitted claims to Medicare and other government payers.

The nationwide enforcement action, coordinated by the National Rapid Response Strike Force, also included millions in fraud related to COVID-19, substance abuse treatment facilities, and illegal opioid distribution schemes.

Since the spindle is constantly running at the appropriate speed in sfm, tool life will be at it's maximum. When compromising speed as must be done when working in rpm mode, the spindle seldom runs at the appropriate rpm, and tool life may suffer.

Use our free speeds and feeds calculator. It will give you information you need to calculate CNC router tool feed rates. Find out more.

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Spindle speed for machining centers is always specified inqui

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As long as you work inches- (or millimeters-) per revolution feedrate mode (G99 on a Fanuc control), witness marks left on the workpiece by the cutting tool will remain consistent throughout the cutting tool's machining of the workpiece if you use constant surface speed. Since the feedrate is tied to spindle speed, as the spindle speeds up and slows down in rpm, so will the feedrate in inches per minute. Again, this causes the tool to create a consistent finish throughout the workpiece.

Minimal diameter changes - If you are machining but one diameter on a workpiece, or if there is but a small difference from one diameter being machined to the next (say, under 1 inch of diameter change), constant surface speed will not help you much. In this case, many programmers will calculate the appropriate speed in rpm and run the machine in rpm mode. This also eliminates the cycle time wasting problems caused by constant surface speed (just mentioned).