Auto calibrate non standard styli

[Simon_Fuller]

We have just bought a stylus that is 102.5mm long. When building your probe setup it doesn't give you the options in the pull down list.
Is there any way that this can be done?
If so please help!

[T Miller]

Build it by useing extensions as close as you can do a manual hit first then dcc

[craiger_ny]

We have just bought a stylus that is 102.5mm long.......

I'll think about a work around but someone else might have a solution quicker. More than anything I am wondering why 102.5mm? and where did you get it from? and again, why? It would be nice if you could key in the shaft length instead of picking it from a drop down though. Did I ask why you bought a non-conventional length? I am sure there is a good reason, please say application and not price.

BTW 4" is a lot of shaft to be swinging around (can't wait for the responses) be carefull and if you are not accurate that is the first thing I'd go after.

Craig

[Simon_Fuller]

Unfortunately one of colleagues decided to buy a ceramic stylus and didn't bother to check the length of it.

[craiger_ny]

Man all this time without a reply!

Tell you what why don't you come to the off-topic room and talk beer with us.

Are you asking this because you are using auto calibrate function? Or are you asking because you just want to select no when it asks if the artifact has moved? I am afraid there may very well be no work around. Have you tried opening up your prehit and retract an additional 2.5mm in the pprobe utilities dialog? All I can think of that doing is keeping you from erroring out on the artifact. I don't know if that will do it for you all around but I guess we have to start somewhere and we are kind of busy talking about beer so if you give that a shot I am going to go back to the off-topic room and think about having a cold one. I just thought it was starting to get lonely over here all by yourself and you could use some company. Wel gotta go..........

[Paul Sarrach]

Are you just going to use this as A0 B0, then you could go to you "Preferences, Parameters, Motion, and increase your Prehit and Retract, and checking distances. But That will only work in that probe position. If you rotate, you will have to recalibrate for each time.

[John Kingston]

Craiger, notice where he is located. By my calculations it is after 4:00 PM there. He probably is drinking beer now!

[craiger_ny]

Are you just going to use this as A0 B0, then you could go to you "Preferences, Parameters, Motion, and increase your Prehit and Retract, and checking distances. But That will only work in that probe position. If you rotate, you will have to recalibrate for each time.

With just over 4" of shank he better only be in A0B0.

Craiger, notice where he is located. By my calculations it is after 4:00 PM there. He probably is drinking beer now!

One can only hope. I was under the impression the Irish didn't let the time of day (or anything else) stop them from drinking.

[bw_bob]

You could go to a file in your PCDMIS directory. It is called Probe. It is a notepad file and has all the probes listed in your probe drop box. You could find the closest probe you have listed in their and copy to the end and then modify to the probe you have now. Just be careful.

[John Kingston]

One can only hope. I was under the impression the Irish didn't let the time of day (or anything else) stop them from drinking.

I am of Irish descent. The statement of "It's after 10 somewhere" has often crossed my lips. Please note that 10:00AM in Dublin, Ireland is 5:00AM here in Cleveland!

[T Miller]

Never tried this but could you edit the usrprobe.dat file and add yours in

[Matthew D. Hoedeman]

You can also measure all the angles you need in manual mode, WITH the tool in a known location (calibrate a 'good' tip first) and it will then have 'nominal' lengths and angles for all the tips you have manually calibrated and it will measure those tips correctly in DCC mode every time. If you add another angle later, you will have to mesure it manually first, then it will be able to measure it in DCC. It always uses the LAST calibration data for the NEXT calibration it does.

[Simon_Fuller]

We plan to use the auto calibrate as we have various probes that are all calibrated at the start of the shift. We need to be able to rotate the head into 20 different positions.
And before you all ask, I was having a beer in the back garden around at around 4:00PM. Lovely!!!

[craiger_ny]

I like bwbob's idea (actually I like you idea of drinking in the garden better). I think I might mess with that when I get a minute. If I can get around to it anytime soon I'll post whatever I find out from giving it a shot. You might want to monkey with it yourself if you are confident enough. Post what you figure out though because I am curious about the details. I looked at the data in the file and it looks like a matter of tweeking one number at a time until you get what you need. I might experiment by trying to double the length of a 50mm shank in the probe.dat file and seeing what happens.

Ceramic is great I use it whenever I can and have found I can articulate larger probes now that I am using it but you are swinging 102.5mm around. I am not going to tell you not to do it but just be mindfull of how much shank you are artuculating with. I don't know your probe set up or what angles you are swinging. 7.5º on the A would not scare me but 90º certainly would. Like I said I won't tell you not to do it. Give it a shot and if it works well that is cool but if you find you aren't getting the accuracy you need I'd susspect the shank length on articulations.

Hopefully I'll get around to trying the file change soon. Actually I hope someone already has and can post it.

mmmmmmmmm beer (just threw a 5 gallon keg of pale ale in the fridge last night, be having a few while gardening this eveningas a matter of fact. Lovely indeed.)

Craig

[Quality4you2]

The best waty is to edit the Probe.dat file
just find where they draw a 50 mm ext and make it 102.5