Machsupport Forum

Mach Discussion => Mach4 General Discussion => Topic started by: rubes on March 14, 2022, 08:17:34 PM

Title: Probe tip radius calibration question
Post by: rubes on March 14, 2022, 08:17:34 PM

my probe has a 2mm tip diameter (.0785" measured with micrometer). when I run the probe radius calibration MACH4 reports (Probe radius set: R=0.5380).
.5380 what? .5380 inches? does it think there is a 1" tip on this?

I adjust the probe tip to run true with a DTI gauge to about 0.0005"
I have a gear with a precision bore of 2.252" measured with a dial bore gauge, used as the reference.

I run the x y offset calibration and get:
x: -0.0004   y: 0.0001

I then run the radius calibration and get the above mentioned R=0.5380

If I then use the probe to measure the 3" length of a 123 block, I get the results as shown in the attached screen shot.
indicating to me that it does in fact think it has a 1" probe tip, since it measures it as 1.9992".

I suppose I could go into the INI file and manually edit the value, but why is there a calibrate tip radius function if it is so useless??

Title: Re: Probe tip radius calibration question
Post by: rubes on March 14, 2022, 08:30:11 PM

meant to add:
MACH4 4.2.0.4612
ESS plugin v277

Title: Re: Probe tip radius calibration question
Post by: rubes on March 14, 2022, 09:02:42 PM

nevermind...this was all me bein' a ding dong dislexic.
entered the wrong value for the ring gauge...duh!!