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Type: Posts; User: drhanger

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  1. Replies
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    Re: Urgent: Dyna DM4400 / DM4000 measurements

    Alan--

    You being an EE maybe I could pick your brain over something. I burnt out one of the small circuit boards on the servo amp for the spindle and I'm attempting to replicate it. Even though I...
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    Re: Urgent: Dyna DM4400 / DM4000 measurements

    Yeah, that's the right eye bolt. Assuming yours is the same. Don't know about the lock nut that comes with it though, it might be pretty difficult getting a wrench in to try to tighten that on the...
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    Re: Urgent: Dyna DM4400 / DM4000 measurements

    Definitely an illusion. The opening is roughly 5 x 7 inches, taking into account the Z axis motor housing which is partially over the opening. Eye bolt was just a little less than arm's length down,...
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    Re: Urgent: Dyna DM4400 / DM4000 measurements

    Hi Alan:

    I got home today and couldn't get the machine to respond so what I have is limited but I think it should help. The machine was left with the head up, so the weight was down at the bottom....
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    Re: Urgent: Dyna DM4400 / DM4000 measurements

    I can get you some pix and other stuff later this afternoon. Mine still has the eye bolt in the top of the weight, probably metric thread. There is a smallish hole in the casting going all the way...
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    Re: Urgent: Dyna DM4400 / DM4000 measurements

    Hey Alan-

    I mentioned earlier that I might be interested in the enclosure if you do decide to let it go, so keep me in mind if/when the time comes.

    As far as moving, I've moved both of mine...
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    Re: Urgent: Dyna DM4400 / DM4000 measurements

    I don't know about the 4400M but both of my 4400's use a servo motor for the spindle. It's possible that's what he meant--if you remove the spindle (servo) motor then the highest point would be the Z...
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    Re: Urgent: Dyna DM4400 / DM4000 measurements

    Alan-

    The height is exactly 79" to the top of the Z axis motor fan. That's with the head moved down and the spindle motor lower than that. I remember I had to disconnect my garage door from the...
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    Re: Urgent: Dyna DM4400 / DM4000 measurements

    Alan-

    I don't think you have anything to worry about concerning the height, as long as it's not any different re: motors. Even at full height (Z axis at the top), the spindle motor still clears...
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    Re: Urgent: Dyna DM4400 / DM4000 measurements

    Alan-

    I don't know how close the 4400 is to the 4400M, it was my understanding they were basically the same machine with a Mits controller and more cabinet. Anyway here's a photo of my 4400 just...
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    Shizuoka B5-V spindle HP

    Can anyone tell me what the spindle HP is on the Shiz B5-V?
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    Re: DM4400 tooling n bits for sale

    Great, sounds good. I'll get back to you later today with how many of the BT30 I need.
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    Re: DM4400 tooling n bits for sale

    Hey Timothy-

    Just saw this come in. I would like the package of CAT30 pull studs. How many of the BT30 pull studs do you have? I'm not sure how many I need, I'll have to take a count when I get...
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    Re: Anyone got DM 4400 manuals to share?

    Operation manual:

    https://www.dropbox.com/s/q8gw6i22kr1w31v/DM4000.4400%20Operation%20Manual.pdf?dl=0

    Service manual:
    ...
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    Re: DM 4400 rebuild

    Hello O'man---

    Nice work, looks great with the electronics you did and the paint job. I have two of these with one in storage for parts and the other working one in my garage. The paint on the...
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    Re: DM 2400 8 Wire Stepper Motors

    This is what I used to figure the wires:

    Identify leads on a 8 wire stepper motor – Victor Leung
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    Re: DM 2400 8 Wire Stepper Motors

    Does this look like the same motor?

    https://photos.app.goo.gl/H4Dc8CT3XQcj7ETF6

    It's from my DM4400, it's a Kollmorgen Synchro Step but no model # on it. 200 steps, 140 oz. in.

    I have mine...
  18. Re: Build log-drhanger's DM4400 electronics retrofit

    Problem solved. Electronics rookie mistake. I had the transistor backwards. I did a little research on transistors before completing this, but didn't spend enough time with it. I made a stupid...
  19. Re: Build log-drhanger's DM4400 electronics retrofit

    Okay Marty, thanks anyway. Did you look at my board and compare it with your design? I'd like to at least rule out something I may have overlooked with it. Appreciate it.

    Dan
  20. Re: Build log-drhanger's DM4400 electronics retrofit

    That's just it--the analog voltage at the spindle amp is actually reducing while the voltage at the vfd is increasing. This is the voltage coming out of pin 6 on the IC going to the input pin 2 of...
  21. Re: Build log-drhanger's DM4400 electronics retrofit

    Dang, I haven't been getting any notifications from this thread since my last post a month ago, only logged on again because I had another question about the inverter circuit. I have a little...
  22. Re: Build log-drhanger's DM4400 electronics retrofit

    Don--

    I am using a Leadshine MX3660 for axis motor drivers; I've been pretty happy with it, seems to be reliable and has a small assortment of I/O's available. If your needs are modest it would...
  23. Re: Build log-drhanger's DM4400 electronics retrofit

    Don-

    Wish I could help out. Like so many others I've gutted almost the entire cabinet for new electronics, so don't even have anything to test measure. Good luck.

    Dan
  24. Re: Build log-drhanger's DM4400 electronics retrofit

    Marty-

    I was about an inch away from totally giving up on this. I just wasn't getting anywhere, in fact after my initial somewhat successful attempt I was unable to duplicate it and wasn't getting...
  25. Re: Build log-drhanger's DM4400 electronics retrofit

    I substituted the caps with the ceramic ones. As a test to eliminate the spindle driver as the problem I bypassed the input to the driver with a battery and changed polarity back and forth. I wasn't...
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