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Question #: 13611

Question: My power supply no longer works. The green light is out.

Current Solution

To which power supply are you referring? CNC power supply, laser power supply or the computer power supply

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Other Possible Solutions to this Question

  • I HAVE ONE OF YOUR SMALLER STEPPER MOTORS RUNNING MY X AXIS BRIDGE CRANE AND IF IT IS MOVED TO FAST THE MOTOR SOUNDS LIKE SKIPPING STEPS WILL 651OZ REQUIRE A DIFFERENT POWER SUPPLY CONTROLER?

    Yes, the 651 oz/in motor requires a driver that is compatible to the motors (the motor will draw 6 amps max and the driver paired with this motor will be able to allow for a 6 amp draw). I would also recommend a 36 volt power supply for better high velocity performance.

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    I HAVE ONE OF YOUR SMALLER STEPPER MOTORS RUNNING MY X AXIS BRIDGE CRANE AND IF IT IS MOVED TO FAST THE MOTOR SOUNDS LIKE SKIPPING STEPS WILL 651OZ REQUIRE A DIFFERENT POWER SUPPLY CONTROLER?

  • WIRE GAUGE FOR POWER SUPPLY

    Most of our power supplies allow for a 9 amp current draw.

    For the Neutral, Live and earth ground, wire gauge for that level of current is 14 for relatively short cable lengths. Increase the gauge for longer lengths past 25 feet.

    For the DC 24V output terminals to the drivers, 20 gauge is fine. If the power supply is connecting to only one driver, increase the wire gauge to 14.

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    What gage wire should I use from motor to driver

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    WIRE GAUGE FOR POWER SUPPLY

  • CAN BOOST THE POWER OF MY BLACKTOOTH LASER?

    Upgrade your mirrors to SI coated mirrors, using a HQ ZnSe lens and even pushing up to a beam expander will all boost power. The ideal order of experimenation for lowest cost would be changing out for a higher quality lens labeled HQ ZnSE lens. Next would be SI mirrors, which will absorb less heat and reflect better, the last would be to use a beam expander which expands the beam, reducing the heat signature on the mirrors and makes a tighter focal width.

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    CAN BOOST THE POWER OF MY BLACKTOOTH LASER?

  • DO YOU SUPPLY THE MALE PORTION OF MOTOR CONTROL CABLES WITH REDLEAF?

    Yes and properly soldered.

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    20

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    DO YOU SUPPLY THE MALE PORTION OF MOTOR CONTROL CABLES WITH REDLEAF?

  • I have one of your smaller stepper motors running my X AXIS bridge crane and if it is moved to fast the stepper motor sounds like it is skipping steps will the 651oz stepper motor require a different power supply and controler?

    Yes, the 651 oz/in motor requires a driver that is compatible to the motors (the motor will draw 6 amps max and the driver paired with this motor will be able to allow for a 6 amp draw). I would also recommend a 36 volt power supply for better high velocity performance.

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    I have one of your smaller stepper motors running my X AXIS bridge crane and if it is moved to fast the stepper motor sounds like it is skipping steps will the 651oz stepper motor require a different power supply and controler?

  • DOES THE SPINDLE RUN ON A 50HZ POWER SOURCE?

    The spindle inverter (VFD) will run on a 220V (or between 170V-250V) power source with either 50Hz or 60Hz.

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    DOES THE SPINDLE RUN ON A 50HZ POWER SOURCE?

  • MY PARTS ARE COMING OUT THE WRONG SIZE

    In Mach3, go to the Settings Tab, and select "Set Steps Per Unit". It will ask you how far to move the machine. Before you do this, make a mark on the table exactly where the end mill is resting. You can do this by lowering the end mill until it touches the material, then spinning it by hand to cut a small dimple in the material. Then, raise the end mill to clear the material, and assign a distance to move the machine. Once the machine moves and stops, measure the exact distance that it actually traveled with a tape measure, and enter this value into the dialog box that asks how far it moved. Mach3 will automatically adjust your steps per unit for that axis to be more accurate. Do this for all axes often to ensure you are cutting accurately. The longer distances you use calibrate, and the more precise you are with your measurements, the better.

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    -1 OR 2+135-135-1=0+0+0+1

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    -1' OR 2+886-886-1=0+0+0+1 --

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    -1' OR 2+357-357-1=0+0+0+1 or 'xkLzGxAb'='

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    1'"

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    MY PARTS ARE COMING OUT THE WRONG SIZE

  • HOW MUCH SILICONE TUBE DO I NEED FOR A GREEN LEAN TO CONNECT THE SPINDLE

    The greenlean requires 56 feet of 1/4 Inside Diameter and 3/8 Outside Diameter silicon tube for the spindle.

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    20

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    20

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    HOW MUCH SILICONE TUBE DO I NEED FOR A GREEN LEAN TO CONNECT THE SPINDLE

  • WHY DO MY 40W LASER POWER SUPPLIES KEEP FAILING?

    check your in-going power and make sure that you have a good neutral connection. Frequently the issue is not the power supply but the power coming into the power supply that causes the problem. There is a chance that the power is good coming in but there is a loose neutral connection and that causes it. This is the neutral connection that runs all the way back to the panel in your home.

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    WHY DO MY 40W LASER POWER SUPPLIES KEEP FAILING?

  • WHAT IS THE SHIPPING COST TO MY COUNTRY?

    You can determine if the country is serviceable by:
    - selecting the items you want to purchase on the website
    - go to the cart (shopping cart top left of any webpage)
    - log in, or register
    - Enter the address and click on calculate shipping.

    The webpage will return the direct rates and whether your area is serviced or not. Feel free to enter any address as long as you are able to receive the package from that address.

    The shipping times are determined by the service you select in the shopping cart. If a machine is purchased, we generally have a one week lead time unless otherwise stated in the description of the machine's product page.

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    WHAT IS THE SHIPPING COST TO MY COUNTRY?

  • WHAT IS THE SHIPPING FEE TO MY COUNTRY?

    You can determine if the country is serviceable by:
    - selecting the items you want to purchase on the website
    - go to the cart (shopping cart top left of any webpage)
    - log in, or register
    - Enter the address and click on calculate shipping.

    The webpage will return the direct rates and whether your area is serviced or not. Feel free to enter any address as long as you are able to receive the package from that address.

    The shipping times are determined by the service you select in the shopping cart. If a machine is purchased, we generally have a one week lead time unless otherwise stated in the description of the machine's product page.

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    WHAT IS THE SHIPPING FEE TO MY COUNTRY?

  • ALL OF A SUDDEN THE REDLEAF COMPUTER WONT TURN ON...THE CNC PART WORKS FINE, BUT MAIN ???

    For our redLeaf CNC computer system, if the computer system section is none response check if you have power coming in from your wall outlet. If a spare PSU (power supply) is available, try replacing and running with the replaced PSU.


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    Other considerations will included, RAM module (memory stick), and motherboard. Please verify you have power going to your motherboard first, by noticing if any LED's are turn on. If not Check PSU first.

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    Yes there is power to the unit. There is a small green light lit on the motherboard and another green light lit near the usb ports. Usually when I press the yellow reset button, the computer starts, but now nothing happens...

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    ALL OF A SUDDEN THE REDLEAF COMPUTER WONT TURN ON...THE CNC PART WORKS FINE, BUT MAIN ???

  • I HAVE INTEREST IN SOME KIT AROUND 14' X 3.5' CAN YOU SUPPLY? ALREADY PRICE? AND WHAT MORE NEED?, MY IS MODELING KAYAKS CNC

    Our CNC machines can be lengthened to work with our customers specific projects.

    For a 3.5' x 14' cutting surface, I would recommend our greenBull 4X! (4'x8'). You will only need to add the remaining length of rail(4) and chain(2) to accommodate the additional 6Ft, so this machine will have a cutting surface of 4' x 14'.

    The additional lengths for the x-axis travel will be a total of 28Ft, and 14Ft of chain. We recommend selecting all the items you wish to purchase and see the actual total in your cart.

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    I HAVE INTEREST IN SOME KIT AROUND 14' X 3.5' CAN YOU SUPPLY? ALREADY PRICE? AND WHAT MORE NEED?, MY IS MODELING KAYAKS CNC

  • I was looking for a MYJG80W power supply but I see you may not have the 220 volt version. Do you have these as yet and if not what can you advise on availability or where I may find one...Thanks

    Thanks for your interest in the 80 Watt Laser Tube Power Supply. We will start offering the 220 Volt version of these power supplies on September 23rd.

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    I was looking for a MYJG80W power supply but I see you may not have the 220 volt version. Do you have these as yet and if not what can you advise on availability or where I may find one...Thanks

  • MY LASER MACHINE VERTICAL DOES NOT ACTIVATE THE LASER TUBE, VERIFY THE POWER SUPPLIES AND THEY ARE WORKING WHICH THE PROBLEM CAN BE

    Same issue here -- TTL output from the AWC708C never seems to be pulled low. Still troubleshooting.

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    MY LASER MACHINE VERTICAL DOES NOT ACTIVATE THE LASER TUBE, VERIFY THE POWER SUPPLIES AND THEY ARE WORKING WHICH THE PROBLEM CAN BE

  • LOSE POWER IN MY LASER TUBE

    This video will illustrate how to test for laser power:

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    LOSE POWER IN MY LASER TUBE

  • [816] PLS HELP ON TEST MODE THE LED DO COME ON BUT THERE IS NO MOVEMENT ON THE Z AXIS

    Are you using Mach3 or Mach4?

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    using Mach3

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    [816] PLS HELP ON TEST MODE THE LED DO COME ON BUT THERE IS NO MOVEMENT ON THE Z AXIS

  • WHAT CAUSES ONE OF MY TWO AXIS MOTORS TO STOP WHILE THE MACH3 PROGRAM IS STILL RUNNING

    If one of your stepper motors decides to stop moving and the others are moving during a CNC milling or laser cutting job, then there could be two things that could be causing this.

    - The motor found its limiting torque (usually comes with a not-so-pleasant sound). This is where the control software is trying to move the stepper motor too fast (velocity, or too fast too quickly, acceleration) and the load against the stepper motor (inertia of the machine, or the material against the end mill while milling). Recommended action is to lower the velocity and/or acceleration, and/or lower the feedrate when cutting.

    - There is a wiring issue with the wiring from the driver to the motor. This could be a loose wire, or a chafed wire (or two shorting together). It can also be a loose digital wire from the controller board to the driver. Sometimes wire ties can be the culprit. Recommended action would be to thoroughly inspect the wiring.

    It's probably not the limit switches since that would cause a stop to the entire motion of the cnc router or laser machine.

    Sometimes Mach3 will show a status when something goes wrong, but in cases where the motor is stopping due to its torque limit, then that would not be shown in the status. It's always good to check it anyway.

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    I need to clarify my situation a little better after going to my shop and trying to run another program on Mach 3. About 15 minutes into the milling process all the motors (2-X axis, Y axis and Z axis)stop but the program continues to run. I stop the program and after a couple of minutes when I try to restart the program all the motors start working again. Then after another 15 minutes or so, all the motors stop again. I checked and rechecked my wiring. This has never happened to me before when running the same programs with the same setups and motor speeds. All of a sudden when I reloaded a program I successfully used before it does this. Do you have any recommendations?

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    Yeah, it sounds like a more complex issue. Have you tried running in the air without using the spindle. This may be a power related issue.

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    That's exactly what I did. I ran the program without the router motor on just to see if the motors would get through the whole program but they stopped working after about fifteen minutes and then I was able to start them again after about 3 or 4 minutes. I never had this problem before so you can imagine my frustration especially after ruining a couple of projects on expensive material.

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    Sure. I can completely understand. Try this: disconnect all but one of the driver from power and digital connection and do the air run. Repeat this for each driver and note your findings. This will rule out the drivers causing a power failure.

    Also, is your stepper motors and drivers on a separate power circuit from the computer?

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    I will try disconnecting each driver and digital connection, which will be a real pain because it will be hard to access.

    All the stepper motors, drivers and computer are plugged into the same power strip.

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    Ok, so there is no power failure going on, but I believe it is necessary to test each stepper motor and driver pair individually. Hopefully that will lead to a conclusion.

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    It will take a little time but I will do it and report back on my findings.

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    Curious, what machine is exhibiting this problem?

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    I purchased a BYCNC kit back in 2009 with an approximate cutting area of 2' X 4'. I later changed out the Z-Axis Motor and controller for a larger one and have two X-axis motors and controllers. In 2010 I rebuilt the machine out of birch plywood instead of the particle board that the kit supplied. I sent Patrick pictures to him. The machine never gave me a problem till now.

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    Thanks for the update. This is Patrick by the way. I answer pretty much all of the Customer Service questions. That machine has given quite a good history.

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    I love the machine and made a number of samples of my work for my e-commerce site, but I can't start selling product until I know this problem is solved because I will not be able to fulfill orders. I finally got all the electronics out of its enclosed protected area near the machine so that I test each controller as you recommended. I hope the problem can be rectified. Will let you know.

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    Thanks.

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    I tested each stepper motor and driver pair individually and they worked so what might be the next step?

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    Did each stepper motor driver pair work for the full +15 minutes?

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    Yes, I had them in operation for over 30 minutes.

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    Ok, well it’s good that the motors and driver are ok. We are now down to the power supply and the breakout board as possible causes for the stop. I have a feeling it may be the power supply where with all three drivers drawing current and the power supply maybe getting too hot. Is the fan in the power supply working? You can also test to see if there is 36 volts on the power supply voltage output (V+ and V-).

    Regarding the breakout board, if you have an oscilloscope, you can test if the driver pulses are outputting, but I would consider this as a last resort after you determine if there is a problem with the power supply.

    Additional Information:
    I tested the power supply with a voltmeter and each output was registering 39-40 volts. I think the problem may be the g-code. I am using V-Carve pro to do design and output to Mach 3 Mill g-code. When I studied the g-code lines I noticed that further into the program the z-axis g-code stopped zeroing out to move to the next part of the carving. In other words both the x and y keep moving and the z just stopped working because there was g-code missing. I think something is missing when the design was converted to g-code. I noticed that when I ran a simpler project it worked without problems so I need to investigate this further.

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    New Update, Its not the g-code. I started to run the long program and everything was working fine until about 45 minutes into it, all the motors stopped working (but the program was still running) and there was a high pitched hum. When I put my hands on the motors they were all trying to move but it seemed they were all stalled. I turned the power off, gave it a minute and when I turned it back on I was able to move the motors again. Could this be a power supply problem?

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    It does sound more and more like a power supply problem. Did you test the power supply after the motors stopped?

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    No, I did not. What should I be looking for.

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    It’s good that you know the voltage during normal operation, so you have a base understood. If the power supply is the problem, the voltage will be reduced or non existent when measured after the problem.

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    Also, check to see if the fan is running on the power supply when the motors stop. That may (not absolutely) be an indication.

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    I'll run another test, check the voltage and fan when the problem occurs and let you know. Thanks for hanging in there with me as we try to resolve the problem.

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    It’s my pleasure. This service is rarely used and is faster then email. Odd nobody uses it. Any recommendations you can give would be great. No problem using this FAQ to pose ideas as this resolution will be cleaned up later.

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    It might be that people do not realize you can communicate through the sight like this because they are so used to e-mail and texting. You may want to explain this feature in the customer service section.

    I ran the program this morning and it did not take long before the motors stopped. While operating the voltages for all three motors was 46 volts, when the motors stalled (and again there was a high pitch hum) the voltage went up to 60 volts and the fan on the power supply was operating.

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    So, the driver work individually, but not all together. There is a high pitch sound when the motors fail. You have noted 60 volts from the power supply and the supply fan remains on. This is a difficult issue to resolve, but it seems to me that your power supply may be bad. The 60v measurement tells me that the current dropped and ohms law tells us that is current drops, volts will rise if the resistance stays the same.

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    As one last test I am going to test each driver again and let them go through the entire program because it seems that the failure can occur at the beginning or towards the end of the program. When I originally tested ach driver I let them run for about a half an hour and the program takes over an hour to run completely. I just want to make sure that it is not the drivers. I will report back when I finished but as you noted it may be the power supply but I want to make sure.

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    That’s a great idea.

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    I just ran the x-axis through the whole program and there was no problem especially since I have two NEMA 23 motors moving that axis. Before I check the Y and Z could having a NEMA 34 on the Z axis with appropriate controller be a problem. I used the larger motor on the z axis because the router I am using is a large 1 1/2 hp. I've run this program in the past with this set-up and have not had a problem.

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    Having a, say 3.0 amp driver, driving a stepper motor that typically requires a 6 amp driver would not seem to be an issue since the driver is limiting the current draw, but the driver may not be able to handle larger coil and back EMF with the protection on the 3.0 amp driver. With that said, I don’t believe that is the issue in this case.

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    I don't either because I was able to run this and other complicated programs with this set-up in the past. I will let you know on the y and z axis.

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    Thanks

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    I ran the Y axis and z axis separately through the entire program and there was no stopping or problem. I guess the culprit is the power supply and I'll order a new one and hope that resolves the problem.

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    Yes, that is the most probable cause. Please keep me informed. Thanks!

    Additional Information:
    Received and installed the new power supply. I ran the program with the router on and it worked flawlessly. The program runs for an hour and a half and I did not have a single problem. I guess it was the power supply but I was glad to go through all the diagnostics we discussed before replacing it. I hope this power supply lasts a lot longer than the last one. Thanks much for hanging in there with me and coming up with the solution.

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    It’s my absolute pleasure and I am so happy to hear that the power supply replacement solved the problem.

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    Y axis stop working X & Z work fine Y axis has two motors have check wiring & connections new breakout board still the same port & Pin set OK dont no were to go next David

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    my cnc plasma cutter will run out the program when cutting. what is the cause?

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    The cnc plasma question shod be a separate question. Can you pise that question by clicking the customer service live menu button at the top? Thanks.

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    WHAT CAUSES ONE OF MY TWO AXIS MOTORS TO STOP WHILE THE MACH3 PROGRAM IS STILL RUNNING

  • IS THE HARDWARE AND PLANS MACHINE SAME AS BOOK MACHINE?

    Yes, the CNC machine hardware and plans combo is the same machine as in the book. The machine that we provide the plans for, can be found on the website, here http://buildyourcnc.com/Item/cnc-machine-scratchbuild

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    IS THE HARDWARE AND PLANS MACHINE SAME AS BOOK MACHINE?

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