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Type: Posts; User: CS900

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  1. Thread: Spindle indexing

    by CS900
    Replies
    7
    Views
    667

    Re: Spindle indexing

    thanks, Currently I have an AC motor with a VFD for the spindle, but I may upgrade to an AC motor in the future for this functionality. thanks!
  2. Replies
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    7,129

    Re: PM45 mill upgrades

    the rails are not the limiting factor in any way. The rigidity of the column is the weak spot.

    the saddle is more than sturdy enough being aluminum. Yeah i could have spent more money on a cast...
  3. Thread: Spindle indexing

    by CS900
    Replies
    7
    Views
    667

    Re: Spindle indexing

    looks like I'm a bit late to this party, but I'd love to see details. I'm getting back into my lathe build, and this is really something I'd like to do.
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    816

    Re: Buying first metal lathe

    That's not silly at all, and it's certainly something to be excited about! We all love machining, that's why we are here. This forum is full of people with a wealth of knowledge, don't be afraid to...
  5. Replies
    113
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    7,129

    Re: PM45 mill upgrades

    yeah, the 45s are good size machines for home use. For anyone looking to do something similar you should look in your area to see if you have a local makerspace. You can always get a months...
  6. Replies
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    556

    Re: Nico's PM-25 CNC Build

    While I don't need a kit, I do appreciate that all your parts seem to be deburred right on the CNC. Those little touches are always a sign of a good craftsman!
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    6
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    199

    Re: milling part off in Z

    well silly question, but are you sure the rotary is actually incrementing a full 180? If it only does 179.5, you'll be cutting a taper into your part.
  8. Replies
    6
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    199

    Re: milling part off in Z

    I would start with your work holding. If you start with your part at an angle no matter how well your mill is trammed you'll always produce tapered parts.
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    235

    Re: a couple of queries

    mach3 will accommodate any pitch leadscrew. If you have it physically mounted, you can get mach3 to control it correctly. You don't even need to know the exact pitch if you have a way to actually...
  10. Re: Newb question about microstepping. LMS 3990 mill. Mach4

    In general, I try and stay away from relying on microstepping to achieve the resolution you want. Your holding torque decreases significantly when you microstep and if your machining forces overcome...
  11. Re: The cutest face mill ever (ISO10 spindle and tool prototyping)

    You'll have to forgive my quickly put together sketch here, but this is what I was thinking. I guess i was under the impression that the machine it's going in wasn't very rigid since it's an iso10...
  12. Re: The cutest face mill ever (ISO10 spindle and tool prototyping)

    it's so cute! and that print looks great too!

    random thought,and realize i'm no expert...but wouldn't you want the inserts angled (not the rake angle) out the opposite direction to take advantage...
  13. Replies
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    176

    Re: Linuxcnc to Mach3

    have you used a meter to check pin1 status when it should be on?
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    5
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    99

    Re: PM 45 Z axis Linear bearings

    looks great! Throw a counterweight or some air shocks on the head and you'll be able to bump up your rapids a bit more.

    I'd be interested to see a part machined before and after the upgrade. I...
  15. Replies
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    249

    Re: 7x10 Mini Lathe to CNC 5 Axis

    Cool idea! From first looks you probably will want more Y travel and beef up the Y axis in general.

    What are you planning on using for CAM? Fusion360?

    Are you also planning on being able to...
  16. Re: Build Thread - BV20L 9x22 Lathe CNC Conversion

    looks great!

    I'm going to ask the obvious question...whats wrong with the pulleys that are on there now?
  17. Re: Build Thread - BV20L 9x22 Lathe CNC Conversion

    V belts will transmit a surprising amount of torque when tensioned properly. I don't think there is anything wrong with the belt you have there (other than atomarc comments, which i also would have...
  18. Re: Build Thread - BV20L 9x22 Lathe CNC Conversion

    go to the auto store and pick up at belt tensioner. They are a)cheap b)already have a spring integrated c)have sealed bearings d) easy to mount
  19. Re: Home switches - how useful, what is your set-up

    dharmic, I see where you're coming from and maybe I hold myself and my mill to a higher standard than most. I've put a lot of effort into making sure my mill can repeat withing a few thenths. I'm...
  20. Re: Home switches - how useful, what is your set-up

    what a hassle! Not only do you have to change the tool out for the probe, you'll also have to go back into your CAM software and reset your work offset to the new edge...repost...switch tools again....
  21. Re: Home switches - how useful, what is your set-up

    couldn't have said it better, although I went a different route. I spend money on some good switches. I run closed loop steppers and heaven forbid i ever loose steps my controller will stop motion...
  22. Thread: Help needed!!!

    by CS900
    Replies
    4
    Views
    238

    Re: Help needed!!!

    Another thing that could be happening is you may just be running the spindle too fast. If there is a belt speed adjustment i would slow the spindle down. This will give you more torque which means...
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    Re: TTS Tooling Alternative Suggestion

    I'm also interested to see how they compare.
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    Re: Running a custom Mcode in the background?

    it's a fanuc 3ti model A control.


    deadlykitten, We have some very tall parts that like to chatter during our roughing operations. To overcome, the operator quite frequently will manually vary...
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    Running a custom Mcode in the background?

    Hi all. so I'm fairly new to macro programming in general, but I find myself in need of some help. I'm trying to emulate the Haas spindle speed variation that they use on their lathes...but on a...
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