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Type: Posts; User: drxlcarfreak

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  1. Replies
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    Re: Z-axis overshooting sometimes

    Fair enough. Sounds like one more ground to go then!

    Yeah, I wasn't a fan of it being exposed so I wrapped most of it in electrical tape just so it wouldn't accidentally short into something. Is...
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    Re: Z-axis overshooting sometimes

    So I messed with it last night. I tried doing one item at a time to see what had an impact. I tried the EMI filter first and that immediately cleared up the spindle requiring a debounce to not trip...
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    Re: Z-axis overshooting sometimes

    When you say wired correctly, what do you mean exactly? Shielded cables, no disconnects to the case but emi shields instead, all grounds go to one spot, keep shields on wires inside case especially...
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    Re: Z-axis overshooting sometimes

    Good idea.... When I put mine in I didn't read about it anywhere and tried to mimic other cases that I had seen that apparently didn't have issues. I am actually beginning to wonder if my old nema23...
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    Re: Z-axis overshooting sometimes

    Fair enough. I will have to look into my spindle to see if the connector will come out easily enough to do that. I also need to find a wire gland that is actually metal inside, and hopefully...
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    Re: Z-axis overshooting sometimes

    Fair enough I ordered the input power filter that Mactec recommended, I will buy 30' of that shielded cable that you recommended, abandon the plug and run the wire directly to the VFD. I also plan to...
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    Re: Z-axis overshooting sometimes

    I saw that you said that this cable was a requirement for a 2.2kw spindle in another thread:...
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    Re: Z-axis overshooting sometimes

    What is a preferred layout? Are plugs not good to have? Are there other quick disconnect options?
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    Re: Z-axis overshooting sometimes

    Ok, so:
    1. No ferrite rings
    2. 30A EMI filter
    3. Redo the VFD cable with shielded cable inside the cabinet.
    4. Faraday cage separating the top half from the bottom half of the electronics?...
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    Re: Z-axis overshooting sometimes

    And a few more...

    427516

    427518

    427520

    427522
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    Re: Z-axis overshooting sometimes

    I was only saying a new VFD based on the assumption from another forum thread that this one is on its way out (https://www.forum.cncdrive.com/viewtopic.php?f=2&t=2092).

    I have no input filter...
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    Re: Z-axis overshooting sometimes

    Yes, sorry I forget that not everyone knows what I have been going through and forget to mention everything. The machine was running fine for about 2 years, then all of a sudden I got a weird issue...
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    Re: Z-axis overshooting sometimes

    That's true, and I don't see these motors losing position at all with their strength and the speeds I have dropped them to.

    True as well, unforunately, I need a version with the debounce option...
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    Re: Z-axis overshooting sometimes

    I thought I had the issue sorted out, and went to try again today and the bit dove right into my piece. I took the Z-axis apart to install a new anti-backlash nut, and noticed when tightening down...
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    Re: Z-axis overshooting sometimes

    I took the z axis off tonight to check it out, there were a couple loose nuts there. I tightened it all back up and it seems to be working like a champ now. I think the threads are slightly stripped...
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    Re: Z-axis overshooting sometimes

    I actually sprayed the acme screw with silicone last night and it seems to have fixed the issue, now when I power the machine off there is so little friction the z axis noticeably sinks into the...
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    Re: Z-axis overshooting sometimes

    Exactly my thoughts. Its almost as if I am gaining steps, not losing them though. Like the lead screw is falling through the nut at the top half of the Z travel. This happens only in the top half and...
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    Re: Z-axis overshooting sometimes

    It's not an issue with the motor for once on my machine! I upgraded to Clearpath servos and am utilizing the closed loop portion so the machine will shut off if the servo isn't behaving correctly.
    ...
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    Re: Z-axis overshooting sometimes

    Hmm, I can definitely say that I have never oiled it. I figured its some sort of plastic piece so it would need it. Its from here:...
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    Z-axis overshooting sometimes

    I am having an intermittent issue with my Fineline machine. When I go to run a program it will start with the z all the way up to the safe Z height, and then drop to the piece. Randomly sometimes it...
  21. Re: Replacement Pivot Bolt for Pro Nema 34 R&P?

    So I received the bolt yesterday. Fast shipping, though shipping did cost 3 times the cost of the bolt! The machine is back up and running. I will say that the bolt I broke must have had a slightly...
  22. Re: Replacement Pivot Bolt for Pro Nema 34 R&P?

    My Ace did not have shoulder bolts, and actually didn't know what they are.

    I just ordered a replacement from McMaster. Thanks guys!
  23. Re: Replacement Pivot Bolt for Pro Nema 34 R&P?

    I'll check Ace out today. Thanks for the suggestion!

    That's a true thought. I myself have broken many a bolt when tightening them. It could have been the shock of hitting the 2x4 at speed made an...
  24. Replacement Pivot Bolt for Pro Nema 34 R&P?

    A 2x4 just got in between my carriage and bumper stop on my new Nema 34 R&P and snapped.the pivot bolt before I was able to react and hit the E-stop button. I am trying to find a replacement to get...
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    Re: Tooling Paste/Putty over Foam

    Hmm, that could work for smaller pieces and be a lot firmer, but boy that would be a heavy mold for larger pieces! I really like the cheap vacuum bagging idea you mentioned. I may give that a try.
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