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Question #: 15593

Question: [CNC Standalone Controller (No Computer Needed)] Is a closed loop system possible with the DDCS Expert?

Current Solution

You can connect closed-loop motors and drivers to this controller. The feedback loop is only between the driver and the motor. When the controller commands the motor to reach a specified location, the motor/driver combination will attempt to get to that position, but if unable to reach the position, the driver will output an error signal which can be wired to the controller to stop the machine. As with all closed-loop drivers and motors, if you stop the movement, and then allow the movement to continue, it will reach it's intended destination since the driver receives the encoder values from the motor. Most controllers work this way and the DDCS is no exception.

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Other Possible Solutions to this Question

  • CAN THERE BE CLOSED LOOP CONTROL WITH STEPPING MOTORS?

    I haven't delved into using encoders with stepping motors too much. From my research, you need to have a controller that can provide the closed loop control, rather than software handling that process. I have also found from my research that using encoders on stepping motors is generally used to stop the machine in the case that the motor failed to achieve the commanded position for some reason and gives the user the chance to correct and continue with the job.

    If you want proper closed loop control, it may be best to go with servos and servo controller that provide the closed loop control within the real of those two components.

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    CAN THERE BE CLOSED LOOP CONTROL WITH STEPPING MOTORS?

  • IS IT POSSIBLE TO MOUNT THE NEW EXTRUDER WHITEANT?

    Mounting the extruder to the whiteAnt can be done a couple of ways. One is to take the 4 mounting holes located at the lower portion of the z-axis rail support and use long screws protruding out. Take a thinner material and drill the four holes matching the locations of the 4 screws and screw on nuts to hold it in place. The other option would be to use the metal bracket and fasten to the edge of the rail support.

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    IS IT POSSIBLE TO MOUNT THE NEW EXTRUDER WHITEANT?

  • I HAVE NOT SEEN ANY REFERENCES TO STEPPING MOTOR ENCODER FEED-BACK FOR CLOSED LOOP CAPABILITY IN OF THE HARDWARE YOU SELL. THIS A SUPPORTED FEATURE WITH HARDWARE/SOFTWARE SELL?

    I haven't delved into using encoders with stepping motors too much. From my research, you need to have a controller that can provide the closed loop control, rather than software handling that process. I have also found from my research that using encoders on stepping motors is generally used to stop the machine in the case that the motor failed to achieve the commanded position for some reason and gives the user the chance to correct and continue with the job.

    If you want proper closed loop control, it may be best to go with servos and servo controller that provide the closed loop control within the real of those two components.

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    I HAVE NOT SEEN ANY REFERENCES TO STEPPING MOTOR ENCODER FEED-BACK FOR CLOSED LOOP CAPABILITY IN OF THE HARDWARE YOU SELL. THIS A SUPPORTED FEATURE WITH HARDWARE/SOFTWARE SELL?

  • WHAT IS THE SYSTEM PASSWORD FOR LASER CONTROL UNIT?

    The password is: 608

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    WHAT IS THE SYSTEM PASSWORD FOR LASER CONTROL UNIT?

  • Will it be possible to only buy the CNC plans, I live in South Africa and shipping is very expensive...

    The files and hardware option for our machines has been removed from the site due to the following reasons:
    Difficulty for the end use of the files and the challenges (and time/money) on our side to assist in using these files.
    The abuse of these files over the internet.
    Ultimately may reduce the sales of machines keeping us in business.
    Sadly, this is what has come out of our company attempting to be open; however, the machines sold on this site is still far lower in price than the competition for the quality that we provide as we have a great desire to engender the cottage industry to fulfill their need for low end manufacturing. My sincere apologies if this causes any inconvenience.

    Additional Information:
    NO, is not possible, I can help with the shipping cost

    Additional Information:

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    Will it be possible to only buy the CNC plans, I live in South Africa and shipping is very expensive...

  • How to unlock the AWC708C system, the driver's screen says the system is locked

    LaserCad-->File-->Factory Manage-->608111-->>Permanent right to use-->Set

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    Not Working With Trocen awc7813

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    How to unlock the AWC708C system, the driver's screen says the system is locked

  • I HAVE THE REDFLY SYSTEM AND A 2.2KW SPINDLE - 110V HOW DO CONNECT SPINDAL?

    It is not necessary to connect the spindle VFD (Variable Frequency Drive also called an Inverter) to the computer or CNC motion electronics. The VFD can be controlled independently using the control panel on the VFD. The control panel has the ability to control all aspects of the spindle including Speed, Torque, limits, etc. However, you can connect the VFD to the computer so the CNC control program can control the spindle during the CNC Machine operation. You will need to connect the VFD to the computer via a serial conection (in this case, it is the RS-485 protocol).

    The following are instructions on how to connect the VFD to Mach3 via this RS-485 serial connection.

    The first thing you will need is the dynamic link library to pair with mach3 called the Huanyang VFD Mach3 PlugIn. You can find this file at the mach3 support forum here: http://www.machsupport.com/forum/index.php/topic,14182.0.html

    You will also need to download the Microsoft .net 3.5 framework and install it: https://www.microsoft.com/en-us/download/details.aspx?id=21

    Follow the pdf that comes with the library file, but here is a synopsis of what you need to do (I also added a lot more information that may be useful during this process as the manual does not cover the main connections that need to be done):

    You will need to program your VFD so that it knows how to communicate with mach3 and the computer (go into the programming mode of the VFD and change these parameters):
    - PD001 - value 2 - Enables with communication aspect of the VFD
    - PD002 - value 2 - Enables frequency control from the communcations port
    - PD163 - value 1 - VFD address
    - PD164 - value 1 - Baud rate of 9600 (speed of the communication)
    - PD165 - value 3 - 8N1 RTU - 8 bits (that's the size of the word that gets communicated), N (No parity or no error checking) and 1 (1 stop bit)

    Copy the dll file to the PlugIns folder of mach3.

    Connect the RX and TX lines to your computer. There are a couple ways you can do this, but the recommended way would be to use an FTDI USB device which converts a USB to a serial com port. The device will have Rx and Tx connectors to connect to the VFD terminals with the same labels. This method is recommended since serial ports are not as common in computers these days.

    Next, you will need to configure mach3 to use the plugin library. Start mach3 and click on Menu -> config ->Config Plugins. Enable the new plugin by clicking on the red cross on the left column next to the plug in. Restart mach3 after doing this.

    No you need to configure mach3 to use the HuanyangVFD plugin. Go to the ports & pins configuration and select the spindle setup tab. Make sure that the Disable Spindle Relays checkbox is unchecked. We don't want mach3 to output a signal for a relay since the spindle will start up and turn off within the VFD and not from an external relay.

    Next, go to the HuanyangVFD settings by clicking on Menu -> plugin control -> HuanyangVFD. Set the parameters to the same settings you put into the VFD programming. The com port will be shown as new hardward when you plug in the USB FTDI device. A little bubble will be displayed at the bottom right where it will notify you that a new device is being installed (be patient while windows assigns a com port). Alternatively, you can use the windows device manager to see which port was set for the new USB FTDI device). You may need to restart mach3 several times until you get the correct information displayed in the PD001 and PD002 fields. When the com port is correct and the other parameters, like baud and VFD address is the same as you entered in the programming, then the PD001 and PD002 will show the number 2, otherwise, a 99 will appear which means that communication was not successful.

    You can now control the on/off and RPM of the spindle using the RS485 communication between mach3 and the VFD.

    Additional Information:
    The question was how to connect the spindle to the redfy. I did not receive a VFD.
    I have the redFly system and a 2.2kW Spindle - 110V how do i connect the spindle?

    Additional Information:
    If you received a spindle without a VFD, please contact us asap. Our spindle will not work without a VFD.

    Additional Information:
    Hi, how is this setup in mach4?

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    I HAVE THE REDFLY SYSTEM AND A 2.2KW SPINDLE - 110V HOW DO CONNECT SPINDAL?

  • DO YOU GUYS SELL THE POTENTIOMETER FOR YOUR LASER SYSTEM BY ITSELF

    Yes, it is found in laser components section

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    DO YOU GUYS SELL THE POTENTIOMETER FOR YOUR LASER SYSTEM BY ITSELF

  • In the 3 Axis Electronics Combo, what is the AC input of the power supply (110v or 220v??). is it possible to specify a certain voltage when ordering?

    In our 3-Axis electronics kit, the power supply's provided are capable of both 110V-220V. You have the capability to switch between both in case you might decide to run 220v in the near future or will relocate where 110v is being used.

    Additional Information:
    Connect spindle to the board



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    In the 3 Axis Electronics Combo, what is the AC input of the power supply (110v or 220v??). is it possible to specify a certain voltage when ordering?

  • DON'T WANT TO USE MY OWN MOTORS FOR THE REDLEAF CNC COMPUTER SYSTEM.

    That shouldn't be a problem. I will need the current rating for the motors. We can subtract the price of the motors. and you can add you own. If you want us to solder the cable to the round connectors and them motor, you would need to send the motors to us.

    Let me know and I can send a paypal invoice for the redLeaf without motors.

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    DON'T WANT TO USE MY OWN MOTORS FOR THE REDLEAF CNC COMPUTER SYSTEM.

  • What is the usb port for on the 5 Axis Breakout Board with Relay ($28.50)?

    The USB port located on the parallel 5 axis breakout board is for powering the board. There is no communications related to this port.

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    What is the usb port for on the 5 Axis Breakout Board with Relay ($28.50)?

  • [823] What post processor do you recommend for this controller with Vcarve Pro?

    The most generic post processor should be used with this controller.

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    [823] What post processor do you recommend for this controller with Vcarve Pro?

  • On the wiring diagrams for the 220v inverters I noticed that there is one hot (220) a neutral and a ground. Will the inverter work with the American split phase system? Hot (120) hot (120) ground?

    Our 1.5/2.2kW spindle will work with both setups, in our wiring diagram it is more seen as the Euro/AUS-style, however you can do the same thing with the North American style as well. Also depending on if you have single or three phase 220V, you can use pins R, S, T. A manual will arrive in the VFD box, which will have further information and diagrams.

    Please seek a certified electrician if you are unsure of any aspect in wiring the spindle or VFD, since wiring to main lines will require wiring of the plug and main lines to the inverter and to avoid any damage or injury's while installing the 1.5/2.2kW spindle and VFD combo.

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    On the wiring diagrams for the 220v inverters I noticed that there is one hot (220) a neutral and a ground. Will the inverter work with the American split phase system? Hot (120) hot (120) ground?

  • Are the Assembled CNC Electronics Systems compatible with a laptop?

    Our Computer CNC-systems, come integrated with all the required electronics (motherboard, HDD, PSU). Only input devices(mouse, keyboard, monitor) and software are required to be purchased separately, to have a complete ready to go system.

    Here (https://www.buildyourcnc.com/AssembledElectronics.aspx) you can see the available option of including windows 7 to be installed with our computer system.

    You can use an external HDD or Flash-drive, to transfer data from your laptop/computer to the built in computer system.

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    Are the Assembled CNC Electronics Systems compatible with a laptop?

  • I ordered a 1.5kW Spindle and Inverter (110 Volt) on December 18th and have heard nothing since. I notice you did charge my credit card for the purchase. Please update me with an ETA as soon as possible.

    I just looked at your account and noticed that your shipments has not been made yet. I will talk to the shipper tomorrow morning when the office opens determine what happened. My apologies for this.

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    I ordered a 1.5kW Spindle and Inverter (110 Volt) on December 18th and have heard nothing since. I notice you did charge my credit card for the purchase. Please update me with an ETA as soon as possible.

  • WHAT SOFTWARE CAN BE USED WITH THE BLACKTOOTH LASER CUTTER?

    If you take the standard parallel cable BoB (Break Out Board), then you will need control software (Mach 3 or EMC2) and CAM software to make your G-Code (such as CamBam). Personally I use CamBam and Mach 3, they work beautifully but don't expect to turn them on and know how they work out of the box. Give yourself a few weeks to get familiar with the basics. CamBam is VERY powerful software for it's price. I'm surprised how much I keep learning on what I can do with it...I highly recommend it if you want as much control as possible.

    Mach 3 + CamBam as a bundle costs $310. EMC2 will give you a free replacement for Mach 3 and is exclusively for Linux.

    If you use the USB BoB, it will cost an extra $75 + $75 for the software. This is an all-in-one package so no need for Mach 3 or CamBam.

    For etching rasters (jpeg, bmp, tiff, non-vectors, photos), I highly recommend PicEngrave. It has been a labor of love for the past 9 years and John has done a wonderful job with it. It easily compares in quality compared to software that is in the $200-$300 range. John's software runs $40 and can be found here: http://picengrave.com/ (don't let the modest website fool you, this stuff can do amazing things). DotG and the Mach3 engrave plugin are two other options and instructions can be found on Dustans page in the gallery on buildyourcnc.com website.

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    WHAT SOFTWARE CAN BE USED WITH THE BLACKTOOTH LASER CUTTER?

  • Will the Bluechick v4.2 work with EnRoute CAD/CAM Software?

    Our machines will work with whatever CAD/CAM software you will like to use; Now knowing what you can export from EnRoute, you will need to be aware of what formats you will need for example g-code for(Mach 3 or Planet-CNC/ Linux EMC2/CNC) is what we use to essentially move the motors to cut your design.

    Here is a forum of EnRoute dealing with Mach 3 (http://store.thinksai.com/forum/forum_posts.asp?TID=701).

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    Will the Bluechick v4.2 work with EnRoute CAD/CAM Software?

  • MY COMPUTER DOES NOT HAVE A PARALLEL PORT. HOW DO I INTERFACE WITH THE MACHINE?

    If your computer does not have a parallel port, all you will need is a low cost PCI parallel adapter card (these can be found on amazon for $15-$20). If you plan on using a laptop (not recommended) you can try to find a PCMCIA parallel adapter, but many people have frequent issues with this setup. A more expensive solution would be to purchase a USB smooth stepper board. Unfortunately, we do not supply any of these adapters and cannot attest to their reliability.

    Additional Information:
    ur gay

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    MY COMPUTER DOES NOT HAVE A PARALLEL PORT. HOW DO I INTERFACE WITH THE MACHINE?

  • DOES ANY OF THE SOFTWARE THAT COMES WITH IT COMPATIBLE MAC 10.6?

    There are several CAD/CAM programs out there for MacOS. Here is a list of a few: http://www.macuser.de/forum/f53/3d-2d-cad-395058/#post4499316
    I've also read good things about punchCAD: http://www.punchcad.com/
    Of course, there is always SketchUp if you are in a pinch. There are a few CAM plugins for SketchUp as well, but I've never used them, so I can't vouch for them.

    CAD/CAM will get you as far as designing your parts and producing the g-code, but if you also want to run the CNC machine with your Mac, you will need a piece of software similar to Mach3 or EMC to run the g-code. I haven't been able to find anything like these programs that runs on Mac, so you may have to run Mach3 or EMC in Windows using Boot Camp or a virtual machine such as VMware or Parallels.

    Personally, I would use the Mac to do all the CAD/CAM, then use a cheap PC to run the CNC machine.

    Additional Information:


    Additional Information:
    EasyDNC for OSX
    www.dnc-x.com

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    Additional Information:
    Hi guys I’m new to the cnc and I’m beginning to learn how to operate and cad-cam software also my cnc runs on Mach3 my questions is if I should use MacBook to do all designs if I can have all this software to run on Mac or I have to use windows software to operate it? I have separate small computer connected to the cnc table who have Mach3 on it please help. Also if you know any other software much easy for beginners please let me know thank you guys!
    My email if needed is r1jastrzebski@gmail.com

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    Hi , thank you for your advise!

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    Hi , thank you for your advise!

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    Hi , thank you for your advise!

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    Hi , thank you for your advise!

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    DOES ANY OF THE SOFTWARE THAT COMES WITH IT COMPATIBLE MAC 10.6?

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