[De...] Posted June 24 Share Posted June 24 I am having a problem with a probe not going to the right place. Usually I requalify making sure the sphere is the correct one, and all x y z values make sense. In this case we have an XXT head on an O inspect. Master probe is roughly 28 mm to center of ball. The probe in question is an L probe whith a 50 mm extension in the Z - direction, and 44mm in the X- direction. This is my second day at this company so I don't know a lot of the background info. We ran the base alignment and the first probe goes right to the correct spot. It does a probe change to the L probe I just described, and the probe does not come down to the correct z coordinate. The probe is off roughly 70ish mm too high in Z. I zerified the correct ball is used, located the sphere with the master, and qualified with the correct sphere. Everything seems like it should be working, except that it goes too high in Zbefore coming in from the X+ plane. Any thoughts or simple things I might have missed would be welcome. We have run the base alignment over again, and like I said the first probe finds everything just fine which makes me think the problem is within the L probe qualifications. Link to comment Share on other sites More sharing options...
[Cl...] Posted June 24 Share Posted June 24 I would try recreating the L probe and deleting the old one. As a way of eliminating one variable, you could also try swapping the L probe for a different one and run it and see whether or not it behaves the same as the L probe. Link to comment Share on other sites More sharing options...
[To...] Posted June 24 Share Posted June 24 When you open the feature that is measured with the L stylus, does the feature and/or strategy look likes it's in the right place on the screen? Are you working from a model, or did you create the feature in the "teach" mode? If teach mode, did you create the feature using the L probe but the 1 -Z stylus was active? If so, just re-create the feature with the L probe. Link to comment Share on other sites More sharing options...
[De...] Posted June 24 Author Share Posted June 24 Yes. It is from a model, and the points on the plane appear to be correct. Link to comment Share on other sites More sharing options...
[To...] Posted June 24 Share Posted June 24 Please sign in to view this quote. Can you open up the probing qualification window and produce a screenshot of the L stylus info? Link to comment Share on other sites More sharing options...
[De...] Posted June 24 Author Share Posted June 24 Please sign in to view this quote. I will see if thats an option. I am also going to try to recreate the probe. Link to comment Share on other sites More sharing options...
[De...] Posted June 24 Author Share Posted June 24 Please sign in to view this quote. Recreating and deleting the old did not in fact help. Ive just never seen this happen before where it wasn't something like qualifying against the wrong sphere. Link to comment Share on other sites More sharing options...
[De...] Posted June 24 Author Share Posted June 24 Please sign in to view this quote. Attached.Capture.JPG Link to comment Share on other sites More sharing options...
[To...] Posted June 24 Share Posted June 24 Please sign in to view this quote. Everything looks good here. Select the L stylus and take a manual point on the part. Check to see if point is on the model where you probed it. I'm guessing it might not be. If that's the case, you may have to completely scrap your base alignment and re-create it with new features. Try taking a point with the down probe, too. Do you recall doing any "out of the normal routine" steps during the creation of the base alignment? Link to comment Share on other sites More sharing options...
[De...] Posted June 24 Author Share Posted June 24 Please sign in to view this quote. Please sign in to view this quote. I will check that, but the L stylus looks like it is in the part if you show probe object. I didnt create any part of this program. This is a validated program created by an outside company. This is only my second day and production is yelling "HELP. We don't know what happened. If it was base alignment I would have expected the other stylus system to not find features either. Its a t stylus with the Z- picking up base alignment. The other stylus tips on that t find their features. If I do a new base alignment, which it looks like I might have to do, program needs to go through Gage R and R all over. Im ok with that being the case, but trying to avoid it if possible. Link to comment Share on other sites More sharing options...
[To...] Posted June 24 Share Posted June 24 Please sign in to view this quote. I've seen programs get misaligned like this before but I am not sure how to fix your particular situation. Do the X, Y and Z values of the down stylus qualification look reasonable? Link to comment Share on other sites More sharing options...
[Ri...] Posted June 25 Share Posted June 25 Open the editor from the circled entity. Then select the stylus geometry. (Not at my PC, so I am recalling names of dialogs). Screen shot the geometry and post it, its similar to the image you provided. Then make a circle feature on your reference sphere with a known good probe. Then do the same with the L probe. Post the Z values of each.Capture.JPG Link to comment Share on other sites More sharing options...
[De...] Posted June 25 Author Share Posted June 25 Comparing to the Base Alignment, The T probe read 0.069 mm on a plane while the L probe measure 0.030 mm. Link to comment Share on other sites More sharing options...
[To...] Posted June 25 Share Posted June 25 The Z values for the T-Probe are all pretty long. Does this stylus system have a long extension before the star connection? Link to comment Share on other sites More sharing options...
[De...] Posted June 25 Author Share Posted June 25 It does indeed. Link to comment Share on other sites More sharing options...
[Ri...] Posted June 26 Share Posted June 26 Couple things, hopefully I can help you out. I need to know the build of your L probe. And I would like to see the "Stylus" data page of your current build for the L probe. Link to comment Share on other sites More sharing options...
[To...] Posted June 26 Share Posted June 26 Please sign in to view this quote. Previously posted. Link to comment Share on other sites More sharing options...
[Ri...] Posted June 27 Share Posted June 27 Please sign in to view this quote. That is the geometry page, I would like to see the Stylus page. Link to comment Share on other sites More sharing options...
[De...] Posted June 27 Author Share Posted June 27 Please sign in to view this quote. I will provide this info today once I get into the clean room. I was out yesterday. Link to comment Share on other sites More sharing options...
[De...] Posted July 1 Author Share Posted July 1 Thanks for all the replies. This randomly worked correctly this morning. I have no idea what changed. No one admits to doing anything to this program, but it is resolved for the moment. Going to lock this program down before anyone tries to change something. Link to comment Share on other sites More sharing options...
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