584,808 active members*
4,857 visitors online*
Register for free
Login

Search:

Type: Posts; User: shinji2k

Search: Search took 0.00 seconds.

  1. Re: Holding brake needed on a 4/5th axis when using a harmonic drive?

    Yeah its a bit far to drive for, admittedly, not much to see.
  2. Re: Holding brake needed on a 4/5th axis when using a harmonic drive?

    Lancaster
  3. Re: Holding brake needed on a 4/5th axis when using a harmonic drive?

    Well...

    https://www.cnczone.com/forums/attachment.php?attachmentid=429150&stc=1

    Pic is just after I poured the epoxy a couple days ago. It's starting to cool off here in Ohio so I hurried...
  4. Re: Holding brake needed on a 4/5th axis when using a harmonic drive?

    Oh there will definitely be resonance issues. But then I have had good luck in the past dampening with a loose fill like sand or the crushed oyster poultry feed stuff if too much weight is an issue....
  5. Re: Holding brake needed on a 4/5th axis when using a harmonic drive?

    Yeah that trunnion was pretty crap and was more of a stand in. Here's where I am at now. I'm still tweaking as I go but I'm much happier with it.
    ...
  6. Re: Holding brake needed on a 4/5th axis when using a harmonic drive?

    Hmmm, I do like the idea of starting with the gantry. We have some pretty large surface plates at work. I could make the gantry, get it all flat and level and square and use that and my machine level...
  7. Re: Holding brake needed on a 4/5th axis when using a harmonic drive?

    Ok, I hadn't really considered optimizing the tubing configuration. I'm kind of stuck with tubing for the base due to practical reasons, I just kind of assumed it wouldn't matter too much. I didn't...
  8. Re: Holding brake needed on a 4/5th axis when using a harmonic drive?

    Oh ok, I totally missed your point about increasing Z travel. The picture I posted doesn't give a good sense of that so here's one from the front.
    ...
  9. Re: Holding brake needed on a 4/5th axis when using a harmonic drive?

    1) Definitely agree here, 5 axis is the priority. I'm the only one at work who's allowed to touch our Brother MX140 and while it's a really nice machine, not being able to do simultaneous 5 axis is...
  10. Re: Holding brake needed on a 4/5th axis when using a harmonic drive?

    I've been brainstorming for a while and I really appreciate the suggestions, it's easy to get stuck on things.

    I really like the idea of leaving a spot for brakes and add them if I happen to need...
  11. Re: Holding brake needed on a 4/5th axis when using a harmonic drive?

    That's a good point, I wasn't thinking about flex in the drive itself.

    I'll also be going with DMM AC servos for everything.

    Thanks so much for your input, I'm definitely using brakes now. At...
  12. Holding brake needed on a 4/5th axis when using a harmonic drive?

    I've been designing a small-ish 5axis based around a bt30 spindle driven by a 2.5hp servo for a little while now. I have already acquired some fairly beefy used Harmonic drives for the 4th and 5th...
Results 1 to 12 of 13