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Wrist Rotation Speed

I was wondering if there is a way to slow down wrist rotation? I tried adjusting wrist speed in the parameters dialog but to no avail. The reason I ask is because recently I've had to measure parts with several rotations and I find that they are sending the probe out of balance.
Thanks!
  • I'm not aware of a setting for wrist rotation speed.
    If you post what type of head it is someone else may have a suggestion.

    What do you mean by "out of balance"?

    Are unusually long probe builds being used? Specific heads have specific recommendations for max tip size/weight etc.
  • I think it's f10.... If not f9 on the first prehit and it will be on the list.
  • I don't think you can, as ir said give more details as to probe type and build we might be able to identify issues / solutions.
  • I don't think you can, as ir said give more details as to probe type and build we might be able to identify issues / solutions.

    +1. There is no articulation speed adjustment for the PH10.. Even adjusting the Movespeed won't affect the wrist.
    I'm guessing "out of balance" can be roughly translated to 'false triggers'. If that's the case, your tip may be too heavy for the probe. ...or loose.

  • Parameter - Motion - Wrist speed... this setting will not work on a PH10?
  • The Wrist Speed box lets you change the speed your measuring machine will use when rotating a probe's wrist (such as a CW43L). Depending on the state of the Display absolute speeds check box in the Part/Machine tab of the Setup Options dialog box, this will either be an absolute speed (mm/sec) or a percentage of the machine's defined top speed.


    I think this is only for infinite adjustment wrists like the CW43L
  • This is what I meant by parameters dialog, it had no effect that I saw even after changing it to 1%.
  • I am using a Renishaw SM25-1 probe. Two of the builds I've had a problem with are a 1 x 30mm and a 3 x 50mm. Perhaps the length is what's causing the issue as some of you have stated.
  • No they should be within spec for a SM25-1.
    SM25-1
    To be used with SH25-1

    Stylus length: 20 mm to 50 mm


    What exactly do you mean when you say 'sending the probe out of balance'?
  • 1. Wrist speed is not adjustable on regular indexing wrists.

    2. Make sure to not use Fly Mode with analog scanning probes, as it skips the pause after a Tip change which is when the probe re-balances itself.

    3. This may be a problem with the health of the probe. If it's been crashed hard enough, it may be damaged internally.
    Here's my fav procedure for testing for that:

    Create a test program that employs the qual sphere straight up in the middle of the table as an artifact:
    1) Manual mode, load master probe, A0B0, manual 5-hit sphere, set as XYZ origin (no level, no rotate).
    2) DCC mode, master probe, A0B0, 23-hit auto-sphere, set as XYZ origin (no level, no rotate).
    3) A90B0, 23-hit auto-sphere (nominal diameter set as measured by A0B0), report X,Y,Z,D, and Profile.
    4) A90B-90, 23-hit auto-sphere, report X,Y,Z,D, and Profile.
    5) A90B90, 23-hit auto-sphere, report X,Y,Z,D, and Profile.
    6) A90B180, 23-hit auto-sphere, report X,Y,Z,D, and Profile.
    7) Load probe #2,
    8) A0B0, 23-hit auto-sphere…
    9) …etc, etc. Repeat the 5 tip angles for each probe.
    10) (optional) Use File I/O to write comma-separated measured values only to CSV format text file (easy to open and graph in Excel).

    All reported results should be within your acceptable uncertainty with consideration of stylus length.
    XYZ and D errors mean probe internal health or calibration problems, Profile errors mean bad carbon fiber shafts.