bart_janssen

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  • March 18, 2012 at 7:02 am in reply to: Stepper selection #1830
    bart_janssen
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    Thanks for the tips.
    I took the spindle out and saw the allignment could be imroved. Also worked on the delrin nut a bit and it is running mutch smoother now.
    It was still overheating but a lot less often. Made a little heatsink out of a square piece of brass to see if that help and it works like a charm.

    March 13, 2012 at 5:29 pm in reply to: Stepper selection #1828
    bart_janssen
    Member

    It took a bit longer than expected but I have converted the proxxon machine and all is running well. At least for the first minute, then the x-axis starts stuttering. I believe this may be due to the driver shutting down because it’s overheating. I’ve lowered the current a bit and it seems to help a little. The x-axis had a bit more frinction than the others. Would it reduce the load on the driver if I try to resolve that? (not looking forward to take it apart again..)
    If I were to order the heatsinks, how do they attach to the board? Are they just soldered on to the board?

    February 9, 2012 at 11:48 am in reply to: Stepper selection #1827
    bart_janssen
    Member

    Got it working now. The current pot needed to be adjusted more precise than I was doing. Going between not enough current and to much. Both result in the stepper making noise but not rotating. Doing the same in smaller increments made me find the right position.
    Thanks for your help!

    December 30, 2011 at 7:51 am in reply to: Stepper selection #1825
    bart_janssen
    Member

    Thanks. Since I don’t have the AVRISPMKII programmer I used avrDude to flash the arduino with the 0.7 version. That looks like it made a difference. The green LED’s D2, D3 and D4 now light up and blink when I try to stream a g-code file. The motor now makes al little noise aswell but still doesn’t turn. Unfortunately I don’t have the time to look into it a bit more right now. Don’t suppose it matters there is only 1 stepper connected?

    December 28, 2011 at 7:31 pm in reply to: Stepper selection #1823
    bart_janssen
    Member

    Ok. I bought these steppers and a MeanWell 24V 13A powersupply.
    http://www.damencnc.com/files/manuals/DCNC-IP54-1NM.pdf
    Checked the PSU to see if the polarity markings were correct and connected it to the grblShield. Then connected the stepper to the shield and applied power to see if the led lit up. It did.
    Turned off the PSU and plugged the shield into an arduino duemilaneuve with GRBL on it and connected the USB cable to my computer. Started processing to run the gctrl.pde sketch. Error RXTX version missmatch. Downloaded the latest version and removed other versions.
    When I now run the sketch again it returns no errors and the console says: Grbl 0.6b
    ‘$’ to dump current settings
    When I open a gcode file it seems to stream ok. Console shows the command followed by an OK from GRBL.
    Problem is when I look at the stepper nothing appears to be happening. Did I miss something? Tried to raise the current but that doesn’t seem to make any difference.

    Any help would be greatly appreciated!
    Thanks! Bart

    October 28, 2011 at 8:01 am in reply to: Stepper selection #1822
    bart_janssen
    Member

    Just received a notification my steppers are in the mail. Deceided to go with a smaller (and cheaper) model since i wouldn’t be able to get the full power from these.
    I’ll let you know when i have them running.

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