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Type: Posts; User: oscilloman

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  1. Replies
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    Re: Dm4400m spindle motor?

    Hey Duke,

    I 100% agree with you on swapping the old motor for a new 3ph asynchronous motor instead of paying almost $1000 to only a new drive. I do not recall exactly what i paid for the 3200i,...
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    Re: Dm4400m spindle motor?

    One more note, have a look through the documentation of the drive to find the scale of min/max output voltage of the drive. Because if you are going to have the ability to rigid tap, the minimum...
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    Re: Dm4400m spindle motor?

    I think https://inverterdrive.com/ ships to the US.

    I got the exact same motor you have attached a picture of. I am running the sprint 3200i unit at 240VAC input. The 3200i drive does have tacho...
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    Re: Dm4400m spindle motor?

    Hi,

    This is a PM DC motor.

    Sprint Electric have reasonably priced drives for this motor.

    https://www.sprint-electric.com/product-category/open-chassis-mount-dc-drives/
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    Re: Power Relay Location

    There is also RC-supressors that can be connected in paralell with the relay coil if you experience any problems.
  6. Re: DM2800 - Electronics, motors and spindle motor for sale

    Nice looking machine! what are you going to retro fit it with? Also, do you have any of the limit switches for sale?
  7. Replies
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    I think Kern and Struder uses some type of...

    I think Kern and Struder uses some type of synthetic granite in their machines.
  8. Replies
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    Re: Trying to find this connector

    Yes, shorting to the metal housing, I just wanted people to know that connectors made with metal housing do at some occations make really hot sparks as well. But sure, if it is on your own hobby...
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    Re: Trying to find this connector

    I am a industrial electrician by trade and reading people writing that metal connectors do not cause fire makes me wounder where they get this claim from. I have seen die moulded aluminium connectors...
  10. Replies
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    Re: Trying to find this connector

    This looks like a Harting connector, https://www.elfadistrelec.no/Web/Downloads/71/26/04347126.pdf
  11. Replies
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    WTB DM4400 limitswitch

    As the title says, limitswitches for a DM4400. The circular NC type.
  12. Replies
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    Re: Dyna Myte Parts for sale USA

    Do you have any of the limit switches for sale?

    Thanks
    -Mathias
  13. Replies
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    Re: DM 4400 rebuild

    Hey Dan and thanks!


    Nice job on scoring two machines.
    I am truly happy with mine, and if I had the space and could find another one for a reasonable price I would not hesitate with getting...
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    Re: DM 4400 rebuild

    Thank you Marty!

    I used your build log frequently while working on this machine, it was great resorce :-)
    The ATC is left just the way it was under skip control.
    I/O expantion module will make...
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    DM 4400 rebuild

    Hello,

    A few years back I acquired a DM4400 for an good price. However, it turned out to have bad spindle bearings and I had to do a spindle rebuild.
    You can check out how I did that in this...
  16. You might want to look up the duty cycle on that...

    You might want to look up the duty cycle on that ESC, because of rc components are usually never ment to be run at full load over time. U probably want some good airflow going over that thing as...
  17. CENTROID Wireless MPG CNC control pendant for the acorn have just been released

    https://www.youtube.com/watch?v=e2ukbCzcMW8
  18. Replies
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    Re: Testing spindle motor?

    Is there air running over the drive board? Allot of dust? All fans working? Filters are clean? Spindle moves freely when you turn it by hand?
  19. Handle maskintilbehør/verktøy til dreiebenk og fres

    Hei

    Eg leiter itte nettbutikker som selg maskintilbehør/verktøy for fresing og dreiing for privatpersoner i Norge.

    Så langt veit eg om(exelmachines har godt utvalg);
    gasolin.no...
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    Re: DM4400 Parts for sale

    Not much luck as of yet, but they are only listed on this forum right now. I will try putting them on ebay this coming week, I just cant get myself to throw them without hearing if someone can find...
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    DM4400 Parts for sale

    Hello, I am selling some electronics from a DM4400.

    https://imgur.com/a/g5OvW

    Have a look at the Imgur album, I have added prices but they are negotiable. Parts are located in Norway so...
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    DM4400 Pull Studs

    Hello

    What type pull stud does the 4400 use ?

    BT30 45,°60°,90° or iso30 type ?

    I did look in the dm4400 manual but it only says pullstuds are supplied by Dyna.
  23. Replies
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    Re: DM4400 Spindle bearing repair

    You are correct Marty, the sleeve has a groove in the middle and this makes the sleeve expand when you apply hydraulic pressure to it.
  24. Replies
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    Re: DM4400 Spindle bearing repair

    Sorry for not keeping you guys updated.

    I received the bearings a few weeks after my last post. They where successfully installed, and the whole operation went better then expected to be honest....
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    Re: When will "acorn" release?

    Good to hear Keith
  26. Replies
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    Re: When will "acorn" release?

    Been a while since this was updated, what is the current status ?
  27. Replies
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    Re: DM4400 Spindle bearing repair

    Got them from a dealer in Norway. Dyna Mechtronics wanted 210$ for them now, and I have to add 25% in import taxes to Norway. I would probably save some money by purchasing them from DM, but I feel...
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    Re: DM4400 Spindle bearing repair

    I have made some progress..
    http://www.cnczone.com/forums/attachment.php?attachmentid=362922&stc=1


    I made a box out of wood to hold the mounting bolt flange in place, and used a bottlejack to...
  29. Re: Hi, I could do with some help/advice regarding a Denford CNC Machine (Mirac 1993)

    Take a look over at Denforddata.com they might be able to answer your question better. Maybe this helps -> Link
  30. Replies
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    Re: DM4400 Spindle bearing repair

    Dan, I cant thank you enough for taking the time to disassemble the spindle on one of your machines. You saved me allot of head scratching!
    A couple of days after your last post I did exactly what...
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