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Calibration - Standard Deviation exceeds limits

I am having a problem getting my 1mmx27.5 probe tip to calibrate.

I have cleaned the 1mm ruby tip and the calibration sphere. I even changed out the 1mm tip with a new one.

Here is the report:

Probe file=T-PROBE_T1X27_M2 Date=6/17/2013 Time=10:05:21 AM

T1A0B0 THEO X 0.000 Y -5.700 Z 124.320 D 1.000
T1A0B0 MEAS X -0.030 Y -5.615 Z 124.425 D 0.895 StdDev 0.013

Why does the diameter keep coming out to 0.895?
Parents
  • It's all Renishaw.
    Here is my build:

    PROBEMIP NoDraw


    You can change the mechanical trigger force of an MIP by rotating the probe to A90B180. You'll see a small hole that that you can insert with a 1.5mm allen wrench to change the trigger force. Make note of the number of turns you make. I suggest moving 90 degrees at a time and testing the probe. Do not over tighten or loosen the adjustment, if you feel resistance that's the ends of the adjustment.

    You can take this a step further by using a gram force gauge and using the trigger force specs provided by Renishaw, but gram force gauges are typically expensive.
Reply
  • It's all Renishaw.
    Here is my build:

    PROBEMIP NoDraw


    You can change the mechanical trigger force of an MIP by rotating the probe to A90B180. You'll see a small hole that that you can insert with a 1.5mm allen wrench to change the trigger force. Make note of the number of turns you make. I suggest moving 90 degrees at a time and testing the probe. Do not over tighten or loosen the adjustment, if you feel resistance that's the ends of the adjustment.

    You can take this a step further by using a gram force gauge and using the trigger force specs provided by Renishaw, but gram force gauges are typically expensive.
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