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Type: Posts; User: inthebay

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  1. Replies
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    Re: Spindle speed ~180% of commanded

    The curious thing now is figuring out where that gear ratio (or otherwise) is coming in and trying to fix it. I did notice that #3111 OPS was set to 0, meaning that it was displaying spindle motor...
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    Re: Spindle speed ~180% of commanded

    Parameter #3734 is spindle speed max, I had dropped it from 7250 to 4500 (the max of the chuck)
    returning it fixed this issue. I'm guessing that its multiplying by a gear ratio somewhere that is...
  3. Re: Variable for value of current offset in spindle. Fanuc 16i

    You might be better off writing a macro to do that for that specific tool and inserting it in your CAM software.
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    Re: Spindle speed ~180% of commanded

    I forced the spindle override to be displayed via a parameter to verify. I cant remember which one it was right off the top of my head, but thats how I checked.

    There is no spindle override in...
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    Re: Spindle speed ~180% of commanded

    Thanks for these leads, ill try and chase them all down when I get to the shop after work tonight.

    There's no spindle speed override knob on the machine so I'm unsure how to force the SSO via...
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    Spindle speed ~180% of commanded

    Hey all,

    Working on a Fanuc 21-T Lathe. Spindle speed override is set to 100%. No gearbox in the machine, serial spindle control (no voltage offsets)

    I command M3 S500, I get S873(ish) - no...
  7. Replies
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    Re: Activate G54-G59 on Fanuc 21i-TA

    also looking for help via DM - Fanuc 21-T
  8. Gauging interest: pneumatic drawbar kit for G0704

    Hey folks,

    Would there be any interest in a bolt on pneumatic drawbar kit for the G0704? My 3 stage cylinder will be arriving in the next couple days, and I've been considering building a few if...
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    Re: Picking a desktop mill...

    If you're downsizing from a bridgeport to a table mill I would advise against a Sherline or Taig. I realize its mostly plastic and aluminum, but working to the very extents of your machines table...
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    Re: G0704 oiling system

    Your Z ballnut probably has a zerk fitting on it, to which you would run a lubrication line within your column. Where exactly do you think the problem lies with your Z axis? Can you give us some...
  11. Re: [PCNC440] Bored? Let's play "guess the final diagnosis!" with a problem with my 4

    Not a tormach, but I've had exactly the same issue happen sometimes with a particular 3D printer. The pots on the stepper drivers were cranked a bit high and the overcurrent/overtemp protection would...
  12. Thread: Hoss's G0704

    by inthebay
    Replies
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    797,989

    Re: Hoss's G0704

    Read my response above, the key is !kabF1sG3VxFZJc4fEpeUhLUG0WdcaLmZkrR4EJm7i1o
  13. Thread: Hoss's G0704

    by inthebay
    Replies
    6,870
    Views
    797,989

    Re: Hoss's G0704

    Odd, I tried to make it keyless.

    Regardless, if my fix didnt work, try this

    !kabF1sG3VxFZJc4fEpeUhLUG0WdcaLmZkrR4EJm7i1o
  14. Thread: Hoss's G0704

    by inthebay
    Replies
    6,870
    Views
    797,989

    Re: Hoss's G0704

    Here's some of the stuff I've compiled over the last few months from odd corners of the internet. Compressed with 7Zip, if you have trouble uncompressing just download it (google) its free.

    Note:...
  15. Replies
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    Re: Small Affordable Desk Top CNC Lathe

    It really depends on the amount of work you want to get done and the extent of how fast you want to do it. Do you need a tailstock? Gang tooling? Budget? You may be well off doing a small benchtop...
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    Re: SHAME ON HAAS!!!!!!!!!!!!!!!!

    For those wondering, the company name is Kirkpatrick Consulting. The are based in Dallas, Texas. The mission statement matches word for word.
  17. Replies
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    Re: Haas option DWO/TCPC for 5th axis

    Damnit, I wish I could get that new control on our new machines (by new, I mean 2013-2015. Cant be retrofit onto any old machines :/
  18. Replies
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    Re: Hacking a CNC machine, but which one ?

    At the end of the day everything is just motors, drivers, and sensors. Its a matter of getting it all wired correctly to a breakout board. for instance, I have a Nordson glue dispensing robot, but...
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    Re: Hacking a CNC machine, but which one ?

    Why not use a pick and place machine? They're high speed and often contain vision systems that you could apply to your measurement needs.
  20. Re: InTheBay's Open Source G0704 Belt Drive Conversion

    Just replaced my X axis ballscrew with a double nut unit due to a bent screw. Will have more on this in the next week or so. My slightly hacked up version is working quite well, and the only intended...
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    Re: Anyone have a Taigturn 2000 yet?

    I really like the look of the thing, I wish I could just buy the spindle indexing sensor though, and modify my current machine to be able to single point turn.
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    Re: SX2 Y axis ball screw length?

    If it were up to me, given the information you've provided, I would wait until I had a base in hand and then get some concrete measurements for sizing a new ball screw, unless you have the capability...
  23. Re: an odd problem... mill "lurches" when changing direction.

    Did you leave backlash compensation enabled in Mach3?
  24. Replies
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    Re: Sherline 50173 - Leadscrew

    Feel free to use standard threaded rod for it. Get back to us when you realize that a leadscrew has certain quality standards that end up costing money.
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    Re: Accepted Bearing stack for Ballscrew

    Excellent, thank you all for your comments. I'm glad to see that the double row bearings will not need to be shimmed in order to function correctly. This should make installation a breeze.
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    Re: Accepted Bearing stack for Ballscrew

    Open ends facing eachother, sandwiched together kinda like (nut) > (endplate) < /-/-/-/-/-/-/-/-/ Ballscrew

    Where the > and < are the direction of the angular...
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    Link inside - Taig Lathe Solid Models

    Hey folks,

    I'm going to be making numerous changes to my little Taig lathe, and I'll be posting all of my models online under the creative commons attribution non-commercial license. You can find...
  28. Re: Ballscrew Bearing/Thrust Bearing Arrangement (G0704)

    Bump. Can anyone show how they have their bearings arranged for the fixed and floating end?
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    Re: Copper Lathe Job

    Ultimately you need to know the clamping force on your chuck, then the cutting forces that you are going to be applying to the workpiece. C110 can range in hardness from B50-B95 or so so your surface...
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    Re: Ridgid tapping No.10-24 thread

    I've also had a lot of trouble tapping stainless. We ended up switching to emuge taps and reducing the thread % cut.
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