cncb
Sun 16 March 2008, 20:06
Heres a copy/paste from the cnczone forum I posted earlier there. Hopefully since there are more than a few of you with the same or similar setup as me (geckos and pmdx) you might be able to shed some light.
After issues with 1 of the four geckos it came back fixed and works perfectly again; to bring up an issue that I have been having the entire time. My machine is a 4x4 hybrid, 4 305oz/in stepper motors, 4 gecko 203vs, 1 pmdx 122 bob, antek 56v psu and a few other electronic components and switches. 2 motors run single, individually in mach3. The last two run together, my Y axis (moving gantry) in sync. Right now i have the timing belt off to determine movement in the motors. Both motors power up and have worked but it has been inconsistent from the beginning. Sometimes they send step/dir signals, often times not. Also, everything appears to function well inside the controller, green across the board, lights function on the bob as if it was working, and this is all internal, I've switched up cables to motors (I have quick connect xlrs) and I've proven it is either the bob or the geckos.
Where I'm stuck is from there on. No problem, so tried jumpering the two motors /geckos on one set on the bob to see if it works; if it does than I can assume that the bob is bad and the Y2 pair (3 terminals) is bad. It worked for a few minutes, I left and shut it off to buy some more stuff at radio shack, now it won't go and work again. Still getting full power to the geckos, appropriate power to each pin, everything matches up or is at least close to one another in terms of voltage as per my multimeter. It just doesn't make sense to me. I have checked the wiring almost 10 times now, and replaced the wiring completely from geckos to motors and geckos to bob.
Anyone have any ideas on how I can either single out the gecko or the bob? Gecko is showing green, functioning like the other three, no issues. Bob is the same. I'm open to all ideas, I just want to get cutting. Will contact PMDX on Monday, just thought some of you might have ideas. Im pretty sure its the BOB though..
Thanks for your help everyone.
After issues with 1 of the four geckos it came back fixed and works perfectly again; to bring up an issue that I have been having the entire time. My machine is a 4x4 hybrid, 4 305oz/in stepper motors, 4 gecko 203vs, 1 pmdx 122 bob, antek 56v psu and a few other electronic components and switches. 2 motors run single, individually in mach3. The last two run together, my Y axis (moving gantry) in sync. Right now i have the timing belt off to determine movement in the motors. Both motors power up and have worked but it has been inconsistent from the beginning. Sometimes they send step/dir signals, often times not. Also, everything appears to function well inside the controller, green across the board, lights function on the bob as if it was working, and this is all internal, I've switched up cables to motors (I have quick connect xlrs) and I've proven it is either the bob or the geckos.
Where I'm stuck is from there on. No problem, so tried jumpering the two motors /geckos on one set on the bob to see if it works; if it does than I can assume that the bob is bad and the Y2 pair (3 terminals) is bad. It worked for a few minutes, I left and shut it off to buy some more stuff at radio shack, now it won't go and work again. Still getting full power to the geckos, appropriate power to each pin, everything matches up or is at least close to one another in terms of voltage as per my multimeter. It just doesn't make sense to me. I have checked the wiring almost 10 times now, and replaced the wiring completely from geckos to motors and geckos to bob.
Anyone have any ideas on how I can either single out the gecko or the bob? Gecko is showing green, functioning like the other three, no issues. Bob is the same. I'm open to all ideas, I just want to get cutting. Will contact PMDX on Monday, just thought some of you might have ideas. Im pretty sure its the BOB though..
Thanks for your help everyone.