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  1. 24-11-2017 #1
    Desertboy's Avatar
    Lives in Leicester, United Kingdom.
    Desertboy
    Last Activity: 14-06-2025 Has been a member for 8-9 years. Has a total post count of 1,005. Received thanks 85 times, giving thanks to others 756 times.
    Quote Originally Posted by Nr1madman View Post
    I keep forgetting.. did you plan on using separate 5v psu or power it from usb?

    If using psu then it looks tight to get that connected there as well...

    Skickat från min SM-G955F via Tapatalk
    The BOB is powered by usb, need to get 12v PSU in there yet ;) If I'm reading the BOB properly it can only be powered by USB unless you solder your own connections. If you have the same BOB get your male to male usb cable now ;) although you can hack something together at a push I originally powered it up with a hacked 4 pin molex (Hard disk power cable) to USB.

    I hope the AM882 is a straight swap for the AM882h as I used the broken one as pattern for setting up whilst I'm waiting for the new one.
    http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm

    If you didn't buy it from China the company you bought it from did ;)
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  2. 24-11-2017 #2
    Nr1madman's Avatar
    Lives in trosa, Sweden.
    Nr1madman
    Last Activity: 20-04-2020 Has been a member for 9-10 years. Has a total post count of 492. Received thanks 91 times, giving thanks to others 11 times.
    Quote Originally Posted by Desertboy View Post
    The BOB is powered by usb, need to get 12v PSU in there yet ;) If I'm reading the BOB properly it can only be powered by USB unless you solder your own connections. If you have the same BOB get your male to male usb cable now ;) although you can hack something together at a push I originally powered it up with a hacked 4 pin molex (Hard disk power cable) to USB.

    I hope the AM882 is a straight swap for the AM882h as I used the broken one as pattern for setting up whilst I'm waiting for the new one.
    Omg what have I missed now!!
    I thought you could supply it with 5v on the connections you connected to the drivers... have you tried that? :D

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  3. 24-11-2017 #3
    Clive S's Avatar
    Lives in Marple Stockport, United Kingdom.
    Clive S
    Last Activity: 1 Hour Ago Forum Superstar, has done so much to help others, they deserve a medal. Has a total post count of 3,345. Received thanks 618 times, giving thanks to others 87 times. Made a monetary donation to the upkeep of the community. Is a beta tester for Machinists Network features.
    Quote Originally Posted by Nr1madman View Post
    Omg what have I missed now!!
    I thought you could supply it with 5v on the connections you connected to the drivers... have you tried that? :D

    Skickat från min SM-G955F via Tapatalk
    You need 5v + 12-24v for this bob the 5v can be supplied by the usb or by the bottom right hand terminals marked 5v PC
    ..Clive
    The more you know, The better you know, How little you know
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  4. 24-11-2017 #4
    Nr1madman's Avatar
    Lives in trosa, Sweden.
    Nr1madman
    Last Activity: 20-04-2020 Has been a member for 9-10 years. Has a total post count of 492. Received thanks 91 times, giving thanks to others 11 times.
    Quote Originally Posted by Clive S View Post
    You need 5v + 12-24v for this bob the 5v can be supplied by the usb or by the bottom right hand terminals marked 5v PC
    Yeah that's what I thought but Mr desert seems to say something else? :)

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  5. 25-11-2017 #5
    Clive S's Avatar
    Lives in Marple Stockport, United Kingdom.
    Clive S
    Last Activity: 1 Hour Ago Forum Superstar, has done so much to help others, they deserve a medal. Has a total post count of 3,345. Received thanks 618 times, giving thanks to others 87 times. Made a monetary donation to the upkeep of the community. Is a beta tester for Machinists Network features.
    Quote Originally Posted by Nr1madman View Post
    Yeah that's what I thought but Mr desert seems to say something else? :)

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    Yes but Mr Desert has not got it working yet
    ..Clive
    The more you know, The better you know, How little you know
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  7. 24-11-2017 #6
    Desertboy's Avatar
    Lives in Leicester, United Kingdom.
    Desertboy
    Last Activity: 14-06-2025 Has been a member for 8-9 years. Has a total post count of 1,005. Received thanks 85 times, giving thanks to others 756 times.
    Quote Originally Posted by Clive S View Post
    You need 5v + 12-24v for this bob the 5v can be supplied by the usb or by the bottom right hand terminals marked 5v PC
    I have them connected to the dir/pulse +'s for the AM882's is this correct? 5v coming in from usb.

    Click image for larger version.  Name: breakout board.jpg  Views: 838  Size: 326.4 KB  ID: 23244

    All I need to do is supply the AM882's 5v+ to both these pins? It wouldn't matter where it came from.
    Last edited by Desertboy; 24-11-2017 at 09:20 PM.
    http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm

    If you didn't buy it from China the company you bought it from did ;)
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  8. 24-11-2017 #7
    Nr1madman's Avatar
    Lives in trosa, Sweden.
    Nr1madman
    Last Activity: 20-04-2020 Has been a member for 9-10 years. Has a total post count of 492. Received thanks 91 times, giving thanks to others 11 times.
    Quote Originally Posted by Desertboy View Post
    I have them connected to the dir/pulse +'s for the AM882's is this correct? 5v coming in from usb.

    Click image for larger version.  Name: breakout board.jpg  Views: 838  Size: 326.4 KB  ID: 23244
    Looks exemplary ;)

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