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  • TP Manual Calculation z,y,z

    Hi guys, Basically I'm measuring a bunch of parts for a capability study. Long story short I need to get true position on four similar features. For this instance I'm not sure how to accurately pull this off with the feature inside PC-DMIS since I…

  • A-c datum alignment

    Opinion needed: Was wondering if it was possible for one of these holes (dat-c-) to give good t.p readings. Since the parts is symmetrical all 3 holes should be used with dat-a- for an alignment (a-c in feature control frame). So it would be possible…

  • Backlog in 2014

    I have been running into problems using 2014 where it seems like I am getting a backlog of information being used when it shouldn't be. Example: I program a part, very straight forward alignment, A-top plane, B- Line, C-cylinder...theses are used for…

  • true position problems!!

    hello there! so i've been having problems fixing this true position dimension. say the part location, on x and y are 1.0 x 1.0 true position of .005. but if my nominal says its 1.005 x 1.007 and i can't change that! because my actual readings are of 1…

  • FCF True Position, Adding MMC on Datum

    Hello, I am trying to create a true position command using FCF. I have a MMC on Datum B. Datum A is the surface perpendicular to the hole and Datum B is the OD of a part with various holes on a Bolt Circle. I set up the true position and add maximum…

  • True position using z axis and angle

    I am measuring this part right now this is a cylinder about 3 inches tall. The od is dat-b. The top plane is dat-a and dat-c is a slot in the center of the part. The part has 4 counter bore holes along the side of it every 90 degrees. Here is a picture…

  • Lack of confidence in CMM

    I've been using the CMM for a about 4 years now in a job shop. We only use it when we *need* to (when we need to produce an inspection report for the customer). I'm the only CMM operator. Running 2012 MR1 CAD. I have several parts that I need to inspect…

  • Bonus tolerance calculation for virtual condition

    I have a true position call out for a hole of T.P.ø.028(M)/A/B(M)/C(M). The datums are as follows: A - plane perpendicular to hole axis B - Hole in the same plane as the hole we are dimensioning C - Different hole in the same plane as the hole…

  • How does PC DMIS report true positions

    Sorry if this is a dumb question but PC DMIS is reporting a true position of .41, but yet it lists my x deviation as -.207 and my y deviation as .241. I calculate that as a true postion of .635. Can someone explain this to me?

  • Basic dimension

    BASIC DIMENSIONS USE G D &T TOLERANCING, THE QUESTION IS I HAVE BASIC DIMENSIONS COMING FROM X & Y AXIS. AM I SUPPOSED TO "CUT" THE TOLERANCE IN HALF WHEN DIMENSIONING THE BASIC DIMENSION? example X AND Y ARE BOTH [2.077] THE TRUE POSITION CALLOUT IS…

  • Remove datum shift and summary from TP report

    I'm reporting the true position of a single diameter. My report shows the following boxes: FCFLOC1 Size FCFLOC1 Position FCFLOC1 Datum Shift FCFLOC1 Summary FIT TO DATUMS = ON, DEV PERPEN CENTERLINE = ON I don't really want to see the bottom…

  • True Position of Notched Slot

    I'm tryijng to create a program to measure 3 notched slots and report their true position. I have included pictures of the features from the print as I'm sure I wouldn't be able to explain it in words. One of the slots is datum C and is TP'd to A (datum…

  • Fun with GD&T! Datum Shift Revisited.

    Ok, so it sounds like a simple question, do I get MMC/LMC bonus off a datum feature? For example [Dia .005-M][A-M] normal logic would state that I get bonus from my feature, and I get more bonus off my datum, that's how I have been taught to calculate…

  • Im a Demis Newbie, Im really good at C@!^pso, what should i know......

    Ok so I followed a former boss to a new shop, he needed a programmer, but the problem is that this new shop has a whole host of B&S PC Demis CMM's, and I have all my years of experience in Zeiss Calypso. As far as I’m concerned the difference couldn…

  • True Position of holes, without Diameter symbol in Control Box??

    let me lay this out for you guys and gals the best I can: I have Datum A wich is a inside Circle recessed into the top of the part. We will call this "Datum A" I have another recessed circle on the bottom of the part. We will call this "Hole"…

  • Multiple diameters in a single True Position FCF

    PC-DMIS 2011 MR1 Is there a way to create a single positional tolerance applying to holes of different sizes? I have a family of parts that have 3 holes at .192 dia, and 1 at .375 dia, in the same FCF. It figures that size matters, because MMC is…

  • GD&T Xactmeasure class summary

    Pc-Dmis GD&T class summary by Wes Cisco First I want to say that I have previously attended the Pc-Dmis Basic and Advanced courses. While I thought both of those were good, I felt this class taught me more, and was more important. I tried…

  • Xactmeasure axis swap

    This is probably the last xact-straw for me. After a week of waiting for the insider Ace card to get back on the compound datum and page break data drop I have heard not a peep. Now I have a new Xactmare. When I create a position dimension, inexplicably…

  • True Position report

    I'm trying to modify my report and have hit a stone wall. All of the info in the help section doesn't help. All I want the report to read is X and Y nominals, actuals, deviations, and actual true position. I'm an old time Zeiss guy (1987). Help me out…

  • True Position of a Line

    Hello, How do you report a true position of a line?

  • Angular TP???

    Hello, I'm new here. Was wondering on the best way to report True Position given the shown information. -A- is the plane of the screen (under the part) : -B- is the center round hole : -C- is the keyed notch. The feature in question is a milled notch…
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