Homemade CNC Router need help!


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Thread: Homemade CNC Router need help!

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    Default Homemade CNC Router need help!

    I have built a three axis cnc router with 1” lead screws and pillow block bearings . The machine is using nema 23 stepper motors and I purchased a tb6600 4 axis controller . The problem I’m having is I can not get any movement at all . I have tested voltage from the 2 parallel ports I have in pc . I have 3.4 volts onboard and 5.3 volts on pci port . I am using a 36volt switching power supply and mach3 . I have checked voltages on tb6600 board and can’t find the problem . I have attached pictures of my build . Any help would be appreciated!

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    Default Re: Homemade CNC Router need help!

    First, do the motors lock up? If not, your driver board is not working.

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

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    Default Re: Homemade CNC Router need help!

    Quote Originally Posted by ger21 View Post
    First, do the motors lock up? If not, your driver board is not working.
    No they don’t lock up because I can turn them with board powered up and connected to mach3 .



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    Default Re: Homemade CNC Router need help!

    Is there an enable input on the board, and is it configured correctly in Mach3?



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    Default Re: Homemade CNC Router need help!

    Quote Originally Posted by louieatienza View Post
    Is there an enable input on the board, and is it configured correctly in Mach3?
    i have configured to mach3 with settings that came with the board . I don’t think there is an enable input on the board .



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    Community Moderator ger21's Avatar
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    Default Re: Homemade CNC Router need help!

    Your motors should be locking up, even with your computer turned off. The issue is with your board, or wiring, not with Mach3.

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


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    Default Re: Homemade CNC Router need help!

    Quote Originally Posted by ger21 View Post
    Your motors should be locking up, even with your computer turned off. The issue is with your board, or wiring, not with Mach3.
    Ok any way to trouble shoot the board I attached a picture .

    Attached Thumbnails Attached Thumbnails Homemade CNC Router need help!-08327990-e4b4-4beb-bce9-0b94d0e45980-jpeg  


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    Default Re: Homemade CNC Router need help!

    Quote Originally Posted by Jtucker View Post
    Ok any way to trouble shoot the board I attached a picture .
    I don't have the manual for this board but in most systems the drives must be enabled in some way. Further some boards need to have the computer hooked up with a suitable app running that can electrify a charge pump circuit. In a nut shell you need to review the manual to verify how your board should work. A third possibility is that there is a fuse on board that is blown.



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    Default Re: Homemade CNC Router need help!

    Quote Originally Posted by wizard View Post
    I don't have the manual for this board but in most systems the drives must be enabled in some way. Further some boards need to have the computer hooked up with a suitable app running that can electrify a charge pump circuit. In a nut shell you need to review the manual to verify how your board should work. A third possibility is that there is a fuse on board that is blown.
    Well I don’t have a manual just some documents that I got with the board . I also found some info on the internet . The files I found online show how to enable motors in mach3 but it still won’t work . I have also checked the 1 fuse on the board and it’s good .http://forum.iiot.co.za/uploads/edit...a9v4pmvvnt.pdf this is this best info I can find on the board .
    Thanks



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    Default Re: Homemade CNC Router need help!

    So on the output signals tab you have enable1, enable2 and enable3 with the enable column checked, set to port 0 and pin 14?



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    Default Re: Homemade CNC Router need help!

    Quote Originally Posted by skrubol View Post
    So on the output signals tab you have enable1, enable2 and enable3 with the enable column checked, set to port 0 and pin 14?
    Ok I will give that a try later today and let you know how it goes . Well that didn’t work still no movement thanks for the advise though

    Last edited by Jtucker; 11-11-2017 at 06:41 PM.


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    Default Re: Homemade CNC Router need help!

    Well, check again that you didn't switch the juice and ground on the power input. Also you could easily fry a drive just by having the stepper output disconnect somehow while the drive was on. Lastly make sure you didn't cross up the stepper wires. You can check which two wires are pairs by disconnecting it from the drive (while it's OFF!) short two wires and see if you feel resistance when you turn the shaft. If you do that means those two wires are from the same coil. If not then then you got them mixed - should be one pair to A+ and A- and the other pair to B+ and B-.



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Homemade CNC Router need help!
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