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Type: Posts; User: cncoperator

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  1. Replies
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    Re: TTS R8 collet

    A word of warning. Having tested lots of collets there is wide variation in hole parallelism and TTS contact area when the collet is gripping. TTS is dependent on full length gripping the 3/4 shank...
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    2,654

    Re: Tool and Work Offset Errors

    Different steels have different coefficient of expansions but assuming the height gauge is steel, stainless 410 is one of the lowest at 0.0000055 in/(in °F) and with temp varying between 50 and 75...
  3. Re: Lost motion/backlash...gonna have to dive in.

    A couple points

    There was a problem with too much oil pressure lifting the table or head when oiling during machining and making out of tolerance parts. This showed up more with the auto than the...
  4. Replies
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    Re: Gang Plate Dimensions

    No. Here's specs for a new set
    They are parallel within 0.0002", flat within 0.0002" and square within 0.0002".
    https://littlemachineshop.com/products/product_view.php?ProductID=1233

    Geometry...
  5. Replies
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    6,585

    Re: Gang Plate Dimensions

    What was the reason for using a block under the tool holder rather than putting the tool holder on an edge of the surface plate? I think any out of parallel between the top and bottom of the block...
  6. Replies
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    Re: Pathpilot corner probe

    .
  7. Replies
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    3,364

    Re: No Path Pilot for Rapid Turn?

    Thank you.. As I understand it in another thread Kstrauss pointed out an obscure problem he was having that was fixed by an upgrade that was helped along by other users:
  8. Replies
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    Re: No Path Pilot for Rapid Turn?

    It's not just the super-duper new technology you're missing if you're not running the latest version. You can't help improve PP which would benefit all of us. For example if there is a problem or...
  9. Replies
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    3,364

    Re: No Path Pilot for Rapid Turn?

    It's nice to see software supported by a company that solicits suggestions for improvements and features and makes updates available for free...
  10. Re: Weird grinding noise when referencing X axis

    That could be the sound a stalled stepper makes. Try moving the block that activates the limit switch slightly closer to the center of the table.
  11. Replies
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    1,106

    Re: Tormach 1100 x axis slop or sticks

    Talk to Tormach. It could be a failed driver or motor and they may ask you to do a swap test.
  12. Replies
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    1,273

    Re: Brand New PathPilot controller for sale

    I don't agree that is the only thing missing:

    Cost of PathPilot software $110 (about)
    Dollar cost of time to order, receive and assemble hardware and install software.
    Possibility that something...
  13. Re: Tormach 770 3rd gen 4th axis DIY problem....

    Try twisting and untwisting it with your fingers. You may be surprised how easily it winds and unwinds.
  14. Re: Tormach 770 3rd gen 4th axis DIY problem....

    In looking at your motor coupling I was wondering if it could wind/unwiind as the load changed, causing positioning error?
  15. Replies
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    2,197

    Re: New Tormach PCNC440....very dissapointed

    There are bearings to take the thrust load but they are inside the motor. Conventional design has bearings on the ballscrew shaft and also inside the motor and I've always wondered about that. It...
  16. Replies
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    5,188

    Re: Well I did it.

    Steve,
    I think Tormach would be pleased. From their Our Story page: "Tormach is dedicated to helping people enter the world of CNC manufacturing".

    Mission accomplished.
  17. Re: 440 x-axis continues to jog, won't reference

    I have a different view of running a stepper motor into a hard stop. If the mechanics are robust enough, and the Tormach is, a hard stop will do no damage even after multiple stops. On some (all?)...
  18. Replies
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    2,038

    Re: Z compensation

    More generally it can be thought of as volumetric compensation . Use a laser to measure the error with regard to the location of the spindle in 3D space and map the errors in the controller. That's...
  19. Re: largest stock you guys are turning? Slantbed15

    I think it's common for manufactures to specify both swing over bed and swing over carriage. Tormach advertises 6.2 inch diameter over the carriage so while you could face a 11-12" piece 6.2 looks...
  20. Re: Seeking a universal pin vise to use on a 770 table

    What about two sided tape aka carpet tape?

    Tormach has a kit with the moldable plastic. Hit it with a hot air gun to reshape.You'll need a sub plate to keep the part flat.
    ...
  21. Replies
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    22,246

    Re: Rigid Tapping on a PCNC1100

    rx8pilot,
    Tormach PCNC 1100 started with Series 1, then came out with Series 2 followed by 3, with earlier Series upgradeable to subsequent ones. Better control software (Mach 3 to Pathpilot), ...
  22. Replies
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    64,337

    Re: Skyfire CNC owners?

    I personally have not. I don't do that kind of work, I don't think I've ever tapped a 2-56 hole in anything, .I suggest you ask the person who owns one at the Tormach cnczone forum.or a manufacturer...
  23. Replies
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    22,246

    Re: Rigid Tapping on a PCNC1100

    rx8pilot,
    Welcome to the Tormach forum. I suspect you may find that the thread died because it is not a glaring feature omission. Off hand four tapping methods come to mind.

    1) Tap mounted...
  24. Replies
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    64,337

    Re: Skyfire CNC owners?

    It is common for machines that do rigid tapping to use the same tension/compression holder as the Tormach https://www.mmsonline.com/articles/rigid-tapping--sometimes-you-need-a-little-float. You may...
  25. Replies
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    64,337

    Re: Skyfire CNC owners?

    Video of Tormach tapping 2-56
    https://www.youtube.com/watch?v=pmToo-QyNwI

    Video tapping 0-80 using a tapping head into steel starting at 5:33
    https://youtu.be/CkTo46ov7FA?t=327

    If you ask...
  26. Re: Is a Tormach capable of making this part in small production qtys?

    There are never ending machining strategies. If speed and thread concentricity to the other features took a back seat to conserving material you could cut threads in the first op and then screw the...
  27. Replies
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    8,634

    Re: Adjustments for accuracy?

    How does approximately 200# (in-lb? ft-lb?) at the stepper relate to force at the cutter...?
  28. Replies
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    3,692

    Re: Pathpilot G95 issue

    I'm pleased Tormach doesn't have rigid tapping and hope they don't add complexity to the machine. I find my tension compression head works well and don't see much reason to have something else to...
  29. Replies
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    Re: Tool offset issue

    This should answer your question starting at minute 2:25 https://youtu.be/0cM32grBMvo?t=147
  30. Replies
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    Re: PASSIVE PROBE ACCURACY ISSUE

    I encourage review of the force, length and diameter assumptions as well as the calculations:

    There are numerous web sites that have cantilever beam formulas such as at the top of DoITPoMS - TLP...
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