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Type: Posts; User: drhanger

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  1. Replies
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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...
  8. 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...
  9. 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
  10. 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...
  11. 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...
  12. 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...
  13. 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
  14. 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...
  15. 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...
  16. Re: Build log-drhanger's DM4400 electronics retrofit

    Hey Marty-

    I finally got that breadboard circuit put together and tested it out just now. It works as expected generally, however in reverse the spindle is somewhat erratic. The driver makes a...
  17. Re: Build log-drhanger's DM4400 electronics retrofit

    Marty-

    Your BOM lists the transistor as 'NP', apparently there is a P missing. Do you remember which, PNP or NPN?

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

    Jim, I'm glad I'm not the only one that might benefit from this. :)

    I've ordered the transistor and microprocessor from Amazon, I should have resistors on hand. Prolly have to stop at Fry's...
  19. Re: Build log-drhanger's DM4400 electronics retrofit

    Marty-

    Thanks a bunch, I really appreciate it. So let me see if I understand how this goes:

    1. The two outer connections are the +/- 12V inputs from the PSU. I am still using the original PSU's...
  20. Re: Build log-drhanger's DM4400 electronics retrofit

    Marty, any luck scaring up the info for that reversing circuit?
  21. Re: Build log-drhanger's DM4400 electronics retrofit

    Marty, that would be great. I'm no electronics expert but I've done a fair amount of small board making and a lot of soldering, so it shouldn't be a big challenge for me. I've used Eagle board layout...
  22. Re: Build log-drhanger's DM4400 electronics retrofit

    Looks like a dead end. The two pins on J3 were not connected, when I did connect them there was a noticeable slow down of the spindle, but the AUX pot did nothing for it, pins connected or not. I...
  23. Re: Build log-drhanger's DM4400 electronics retrofit

    Interesting find. I'll have to look at that this afternoon. So if those two pins are indeed connected, either I need to disconnect them to see if that brings the speed to parity, or they need to be...
  24. Re: Build log-drhanger's DM4400 electronics retrofit

    The problem being that I only have +10, not -10 available. At least with my current equipment....
  25. Re: Build log-drhanger's DM4400 electronics retrofit

    Marty/Jim/both/anybody--

    I've been getting a lot of good use out of the machine, and have been thinking off and on about working on being able to reverse the spindle. If you recall I did not try...
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