Can someone give me some tips on calibrating tips. i have always used a CMM and I am really new to a Romer arm and was wondering if you guys had some tips???
I usually do sphere with ref probe... you have a sphere?
The software guides you through the process. 9 hits on the sphere with the ref probe, it shows you the size on the sphere, you switch probes to the one you want to calibrate and then you do 36 hits (9 with the wrist at each compass direction), and then it shows you the results and gives you the option to update the specs...
My instructor said the same thing, but I have other people using my Romer with the QuickMeasure software so I like to calibrate them a couple of times a month. I do a Length Check around once a month also. How often do you calibrate probes or do a length check?
My instructor said the same thing, but I have other people using my Romer with the QuickMeasure software so I like to calibrate them a couple of times a month. I do a Length Check around once a month also. How often do you calibrate probes or do a length check?
The Length check / Point check / Sphere checks that we do in RDS Data Collector should be done for two reasons:
1) to qualify your measurement area (i.e. is this table sturdy enough? is this fixturing tight enough? what sort of results can I expect with this given setup? let's measure a 'perfect part' and find out)
2) to quickly assess whether or not our Arm remains in a state of calibration.
when I fail my Checkouts:
85% of the time, there's an issue with my setup. Somehow, the part and arm are moving relative to each other
10% of the time, there's an issue with the operator. Somehow I've taken a sloppy hit.
4% of the time, there's an issue with my probe. Somehow, the probe is no longer in the state it was after the last calibration.
1% of the time, there's an issue with the arm. Somehow, the encoders are no longer in a state of calibration.
The instructor I had said you should NOT have to calibrate any of the tips, UNLESS you have bent/broken/replaced one.
<OCD mode>
Only calibrate a tip if the ball center or the ruby shape has changed since the last time it was calibrated.
</OCD mode>
the problem is that sometimes it's hard to tell if the tip has infinitesimally bent. yet another reason to use the 3mm probe as sparingly as possible, as it has the slimmest shaft.
Only calibrate a tip if the ball center or the ruby shape has changed since the last time it was calibrated.
</OCD mode>
the problem is that sometimes it's hard to tell if the tip has infinitesimally bent. yet another reason to use the 3mm probe as sparingly as possible, as it has the slimmest shaft.
Because of the parts I check I swapped the 3mm tip with a 2mm tip and it is on my arm every day... only broken 3 in 14 months.
Soft hands from stickhandling...
So how often should one do length/point/sphere checks assuming an arm is used every day?
Because of the parts I check I swapped the 3mm tip with a 2mm tip and it is on my arm every day... only broken 3 in 14 months. Soft hands from stickhandling...
So how often should one do length/point/sphere checks assuming an arm is used every day?
We just provide the tools -- i'm sure your local Quality department has guidelines that you should be following?
