Ginnbob

[ginnbob]

I can't calibrate my tip. this is the error I get. what am I doing wrong?

[ogcharliebrown]

Have you used this tip before? If you cant get it to calibrate maybe rebuild the probe. sometimes this helps.

[Douglas]

no MS office on this computer can't open the file, what does the wording of the error say?

[ginnbob]

invalid reading of the measured point.

[Douglas]

that error means it did not find the sphere... I assume it just stopped moving and did not retract is that correct? if so try check the reset to theo box

[ginnbob]

i have used this tip before.

[Douglas]

give us a bit better detail on what it does, when it starts the calibration routine do any points ht the sphere and work or it does that on the first one?

[ogcharliebrown]

It looks like you were 65% into it. and you did a manual hit on top of the sphere. Might want to restart PCD sometimes this helps also.

[Douglas]

and what were you doing at the time, were you using this probe to set the sphere location after you moved it, or was the sphere not moved and you answered no the sphere did not move?

[bfire85]

Are you sure you used the tip before? Your probe rotation has an asterisk next to it meaning it has not been calibrated before at that tip rotation.


Here's his picture he uploaded to the word doc.

ginnbob_cal_issue.png

[Douglas]

I'm noticing how far the x,y,z location is from 0,0,.375 I think it must be that poorly correlated with the tip that set the sphere... why is the thing

[Douglas]

pretty sure it also means he did not have the reset to theo check box on

[Douglas]

I could ask about 50 more questions but rather know that stuff to narrow in on it

[Mike Ruff]

Have you tried switching the mode to Man+DCC? That might get it to work for you...

[Douglas]

MAN+DCC might get this one to calibrate, but not correct correlation error

[Mike Ruff]

Say, for example, a new guy with way too much confidence, and not enough experience or common sense, needs to calibrate the 10X1.5X30 probe file. But he sets it up with a 20X1.5X30 probe, and even though this is wrong, he is confident that he has everything set up correctly. When it doesn't work as expected, he switches to manual+DCC and gets it to work. The NEXT time someone else calibrates the 10X1.5X30 probe file, this time with the CORRECT build, it will miss the sphere because now the targets are all messed up from the new guy forcing it with Man+DCC the last time. And in this situation switching to Man+DCC with everything set up correctly should fix the problem. I've seen this happen a few times.

[Mike Ruff]

But resetting the tip, as you mentioned earlier, would also fix this situation

[Douglas]

if you just replaced a tip for some reason double check the length of it, make sure you don't have a TESA 18mm in there by accident when you wanted a 20mm long tip for example... if that checks out then you most likely have a correlation error with the probe that was used to set the sphere location, in which case the sphere location is considered no longer valid, you would need to check your master tip and set the sphere location again


do you move the sphere around a lot or does it always sit there in the same spot?

[A-machine-insp]

4 things to try.

1: Shut everything down, Reboot your computer, Re-Home your Machine <<<<< This usually fixes everything.

2: Locate the sphere using a master probe at A0B0 and use a manual hit to find the sphere. Make sure you select "Yes the sphere has moved". I use a 4mm10 probe. I also do this for every job I run. Master probe first to locate the sphere then calibrate the probes to be used selecting "No the sphere has not moved".

3: turn your prehit and retract up. When I have this issue, I typically turn it up to .200".

4: If the first two things fail to fix the problem, delete the probe file and rebuild it. This rarely happens to me but the probe file can get corrupted. This is the last thing I try and, when the other two things fail, this has always fixed the problem.

[KIRBSTER269]

4 things to try.

1: Shut everything down, Reboot your computer, Re-Home your Machine <<<<< This usually fixes everything.

2: Locate the sphere using a master probe at A0B0 and use a manual hit to find the sphere. Make sure you select "Yes the sphere has moved". I use a 4mm10 probe. I also do this for every job I run. Master probe first to locate the sphere then calibrate the probes to be used selecting "No the sphere has not moved".

3: turn your prehit and retract up. When I have this issue, I typically turn it up to .200".

4: If the first two things fail to fix the problem, delete the probe file and rebuild it. This rarely happens to me but the probe file can get corrupted. This is the last thing I try and, when the other two things fail, this has always fixed the problem.

Fixed this for you

[A-machine-insp]

Yeah.. That's exactly what I said.

[Peter Fuller]

If this measurement is taken with a manual hit, make sure that the slow or turtle mode is enabled when you take the manual hit. Taking a manual hit on a sphere without the slow/turtle mode enabled can cause PC-DMIS to calculate the sphere size wrong when it takes the next 3 sample hits before it goes into a full DCC calibration.