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Question #: 14864

Question: [Mach4 CNC Control Software] The CNC is routing my letters half the size

Current Solution

In Mach4, you need to calibrate your axes so that real-world measurements are the same as the measurements for your axes' position.

Mach4 has a wizard that allows you to calculate the steps per unit for an axis. This is a manual operation, so you will need to use the existing steps per unit in the axis you wish to change.

Go to motor tuning to grab this number and copy it to the clipboard. Now go to the wizards menu and "select wizard". Scroll through the wizards until you see "StepsPerUnitCalculator" wizard and accept that wizard.

A new dialog box will appear with fields that you can use to determine the new steps per unit for the desired axis. The incremental move button is available so you can test new values calculated for the steps per unit for the axis. Use the "move distance" along with the "move velocity" to incrementally move to determine move distances.

Respond:

Other Possible Solutions to this Question

  • Where is the link for the expansion kit for the CNC Routing Machine Kit Version 1.3?

    You can use the board5.nc as the expansion parts.

    Additional Information:
    20

    Click the link to add information to this solution:
    Where is the link for the expansion kit for the CNC Routing Machine Kit Version 1.3?

  • What size motor is powering the y axis on the greenLean CNC machine?

    For our greenLean CNC vertical machine, was built and controlled using 2 651-oz in motors/425 oz-in motor.
    The 651-oz motors runs both the x/y axis, as our 425-oz motor controls the z axis.

    Click the link to add information to this solution:
    What size motor is powering the y axis on the greenLean CNC machine?

  • hello im from peru my name is cesar i want to know if the price of the machine offered in amazon CNC routing Machine version 4.1 US$ 2494, whats include?

    The amazon version does not include a table or many accessories like motor cable, limit switches, spindle or router, etc.

    Click the link to add information to this solution:
    hello im from peru my name is cesar i want to know if the price of the machine offered in amazon CNC routing Machine version 4.1 US$ 2494, whats include?

  • Would you be able to provide .DWG/.DXF files instead of .NC files for the CNC Routing Machine Kit Version 1.3 please?

    These files are no longer available. We suggest purchasing a kit, like the blackToe, or blackFoot as these kits are far more rigid and perform much better.

    https://www.buildyourcnc.com/blackToe2x4v40.aspx

    https://www.buildyourcnc.com/Item/cnc-machine-blackFoot-v4

    Additional Information:
    20

    Click the link to add information to this solution:
    Would you be able to provide .DWG/.DXF files instead of .NC files for the CNC Routing Machine Kit Version 1.3 please?

  • 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.

    Click the link to add information to this solution:
    MY PARTS ARE COMING OUT THE WRONG SIZE

  • MY MACHINE CUTTING THE WRONG SIZE PART

    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.

    Click the link to add information to this solution:
    MY MACHINE CUTTING THE WRONG SIZE PART

  • DOES THE PRICE OF 2’ X 4’ ROUTER INCLUDE EVERYTHING WOULD NEED TO START ROUTING?

    You will need the following:
    - router/spindle for the machine
    - computer to control the machine
    - construct a table if the optional table is not purchased
    - wire and cable to connect all of the electronics

    Additional Information:
    - software to run the gcode (purchased separately)

    Click the link to add information to this solution:
    DOES THE PRICE OF 2’ X 4’ ROUTER INCLUDE EVERYTHING WOULD NEED TO START ROUTING?

  • Can you repair the electronics on my CNC machine?

    Yes, you can send your electronics to us for repair, or retrofit to work with either Mach3, Mach4 or LinuxCNC. You can send us an email at customerService@buildyourcnc.com to set up your appointment.

    Some of the types of CNC electronics we will consider.

    - We will work on electronics from other manufacturers as long as you are ok with the Mach3, Mach4 or LinuxCNC control software for your CNC machine or CNC router.

    - We will repair or retrofit used CNC electronics.

    - Some customers find that electronics are overwhelming to put together so we will finish these electronics wiring and assembly for you.

    The cost for these includes labor cost for the time it takes to finish the CNC electronics repair or retrofit and for any parts that need to be replaced or added.

    Here is an example of CNC electronics that we worked on for a customer:



    This is the type of response that you can expect to receive after the CNC electronics are repaired or retrofitted to work under Mach3, Mach4 or LinuxCNC. You can see the entire work, which also shows the time involved. We also show what we were able to accomplish at the beginning of the video.

    Click the link to add information to this solution:
    Can you repair the electronics on my CNC machine?

  • IS DRILL BIT USED IN THE CNC MACHINE?

    The cutting tool is an end mill (it looks like a drill bit). It is a cutting tool that can plunge and cut sideways. That item is not included and is a consumable. You will purchase these very frequently and will have geometry that is very specific to how you apply the cnc machine.

    Click the link to add information to this solution:
    IS DRILL BIT USED IN THE CNC MACHINE?

  • My CNC router stopped in the middle of a job with mach3.

    Dealing with a mid-stop cut via Mach3, you will have to be careful if it is intentionally or unintentional. If you desire to stop your machine while in the middle of a cut be sure to stop it when the machine is moving in an upward motion on the z-axis and the X/Y-axis are stationary. Then you can choose the point (G-code) where the machine was left off and click on the Run from here button on the Program Run screen (left hand side) right above the Reset button.
    (Make sure spindle/router is running before hand!)

    Now if the machine stops unintentionally, and was moving in either the X/Y-axis, then it will be difficult to run the machine from the original point dealing with the coordinates might have been lost due the the machine continuing motion but via Mach3 the machine has stopped.

    If this occurs to fight this issue before hand, is marking your home with the spindle/router to make a hole were your home is. Although moving it manually back to home the machine can be off by the smallest amount and could cause an inconsistent cut. If accuracy is something that can not be risked, then you can home the machine about a 1/4" or 1/2" down from the original home to start your cut on the same material but loosing that small piece.

    Additional Information:


    Additional Information:
    My typical go to solution is:

    - Note the current g-code line where the machine stopped.
    - If Mach3 errored and you cannot control the machine, Exit Mach3 - you may find that reset, stop does nothing to stop the spindle. When you exit mach3, the spindle will stop automatically.
    - Restart Mach3. The DRO (Digital Readout) should show the correct coordinates where the machine position was before exiting Mach3.
    - Scroll to the g-code line where the machine stopped. You may need to go a few lines prior to make sure you are not skipping any machining operations (which is why it is a good idea to learn the basics of g-code - don't worry, it's easy)
    - Click on the "Run from Here" button.
    - Mach3 will present you with a "Preparation Move" dialog box with the location that it will move to. If the coordinates shows a position that is into the material, make sure to specify a rapid height (clearance height) so the machine will move up first and then move to the location before moving down into the material. If the spindle is automatically controlled by Mach3, make sure to check the turn spindle on checkbox. If not, make sure the router or spindle is on before clicking OK.

    Additional Information:
    My cnc router stops at gcode line 50,000 and cannot finish program. They are about 150k of lines total. I have Mach3 and have bought the additional line capability. Is 50,000 (or around that) the limit? Is Mach 4 hobby license better and in what ways? Thanks! Mike Huber

    Additional Information:
    If you have a license for Mach3, then you should be able to run g-code indefinitely. I think there is something else going on.

    Additional Information:
    Additional Information:
    If you have a license for Mach3, then you should be able to run g-code indefinitely. I think there is something else going on.
    What else could be going on?

    Click the link to add information to this solution:
    My CNC router stopped in the middle of a job with mach3.

  • Hi - what is the cost of shipping the lean to CNC to the UK (8'x4')

    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.

    Click the link to add information to this solution:
    Hi - what is the cost of shipping the lean to CNC to the UK (8'x4')

  • 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.

    Click the link to add information to this solution:
    DON'T WANT TO USE MY OWN MOTORS FOR THE REDLEAF CNC COMPUTER SYSTEM.

  • 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.

    Click the link to add information to this solution:
    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.

    Click the link to add information to this solution:
    WHAT IS THE SHIPPING FEE TO MY COUNTRY?

  • Is the USB hub ready for use with Mach3 at this time, or just Planet CNC?
  • USB CNC Keyboard Speed Pot Size?

    The potentiometer for the speed header on the usb interface is used as a voltage divider, so the ohm value is just going to portion the voltage rather than output a resistance. You can use many values, but I would use a value of around 5k ohms.

    Click the link to add information to this solution:
    USB CNC Keyboard Speed Pot Size?

  • Which electronics package is required for the CNC machine from the book designs?

    The book design uses all NEMA 23/24 motors which can be found here:
    https://buildyourcnc.com/item/electronicsAndMotors-3axis-425-elcombo

    I recommend the Mach3 USB option as you will be able to use the USB connection for control.

    If you are planning to build from the plans developed by the folks over at Woodsmith Magazine which is loosely based on the book design, use this electronics package:
    https://buildyourcnc.com/item/electronicsAndMotors-3axis-heavy-gantry-elcombo

    Click the link to add information to this solution:
    Which electronics package is required for the CNC machine from the book designs?

  • HOW DO ADDRESS THE DANGER OF THESE CNC MACHINES

    These machines are inherently dangerous. Before the machine moves, the machine should be clear of any person by a dimension of at the distance of a persons reach plus a few more feet. This is the policies we institute in our shop and what is recommend to all of our customers. Treat these machines as you would treat any major power tool in the shop.

    With that said, you can certainly add some protective parts, but still keep folks away even with those installed. I would use the gantry side to do all of the mounting of the protective parts. Consider using sheet metal that you can bend and make a simple installation right on the gantry side.

    Click the link to add information to this solution:
    HOW DO ADDRESS THE DANGER OF THESE CNC MACHINES

  • WHAT THE DIFFERENCE BETWEEN 3 AXIS AND 5 CNC?

    3 axis machines cannot create undercuts in the part.

    These videos show the capabilities of 3 and 5 axis machining:

    3-axis CNC:

    &feature=fvwrel

    5-axis CNC:
    &feature=related

    Additional Information:


    Additional Information:


    Additional Information:


    Additional Information:


    Additional Information:


    Additional Information:


    Additional Information:

    Click the link to add information to this solution:
    WHAT THE DIFFERENCE BETWEEN 3 AXIS AND 5 CNC?

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