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Help with rotating head

Hello all!

I am facing this issue and I am not sure if this is normal (it shouldn't be imo)

Setup: TIGO SF TP20 module
PC-Dmis 2017 R2

To put it simple, I am taking a vector point at -1,0,0 on a plane with a probe at A0B0 workplane Z+
I am repeating this exact same point but going from the side with A90B-90 (whatever workplane, gives the same result)... and I am having a 15 to 30 microns deviation between the 2 measurements. This applies to +1,0,0 also and to more than 1 probe.

I have 2 other TIGOS with the same setup and I have not noticed such a strange behaviour. Is it normal to have 30 micros deviation between scenario A hitting perpendicular to the probes axis and scenario B hitting parallel to it?

I find it very weird.

Finally, I am correctly calibrating, setting up parameters as move speed/ touch speed/ prehit and retract. When locating the calibration sphere in a seperate verification program, I see no deviation btw... Thanks in advance for your replies!
Parents
  • Touching straight into a TP20 has the most pressure that the module will feel, as you are lifting all three lobes up at once.
    In that picture of the triangle, hitting on the point of one, so that it teeters on the other two lobes is the least pressure.
    everything else is in between.

    That said, this seems like more error than I'd expect, unless you have a really long build.
Reply
  • Touching straight into a TP20 has the most pressure that the module will feel, as you are lifting all three lobes up at once.
    In that picture of the triangle, hitting on the point of one, so that it teeters on the other two lobes is the least pressure.
    everything else is in between.

    That said, this seems like more error than I'd expect, unless you have a really long build.
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