hexagon logo

Need Help with Quick fixture, Cad of CMM Table, and part CAD

So I saw on the forum that some CMM Programmers like to have a cad file of their cmm table in their programs to help with travel, rotation, and fixturing. I was able to make a cad file of my table in our cad software. Now though  I am in way over my head when it comes to using the table cad, part cad, and quick fixturing. Is their anyone else who has been able to solve the issues that come from using these three different things. How do we use separate coordinate systems so they all move together, how do I align the coordinate systems, how do I move one without moving the others, is their a way to lock one or two in place while working on one.

Any help or advice is appreciated

Parents
  • I do it all with cad software. Have never even tried using quick fixtures.

    If you have access to CAD software its more than worth the time to model your most used fixtures. Also keep in mind that most "fixture" companies will give you the CAD models for their products. If not check on the McMaster catalog and see if a CAD version of the item is listed.

    If you can't get the CAD then grab some calipers and make simple models of your fixture elements.

  • You mean you dont import just the part into PC-DMIS at all? You use solidworks or mastercam, import your part onto the fixtures, then upload the whole thing into PC-DMIS?

  • Yup, all as one model, with the origin already in the proper location.
    By the time I left the machine shop we had mostly 100% cad for all CMM setups. The complicated parts included a tooling ball in the corner of the plate, all the operators had to do was load the part as show exactly on the screen, then hit go. The machine would navigate itself to where the tooling ball "should be" ask if it looked correct, then lower in Z, ask if it was good to go, then it would pick up the tooling ball and start the program. 

  • How long would it take you usually to make the cad once you had your fixturing made in the cad software?  Imagine not a terribly complicated part, but something different then what you usually saw.

    Sorry for the 20 questions but I think this maybe the way I'm going to have to go. Its a change to what we have been doing, but the owner wants the programs "Idiot proof" and this seems like it would work if I do it correctly.

  • That is VERY dependent on what CAD software you have Joy
    I used SolidWorks before, now at this job I am forced to use only Creo 7 which makes me want to flip my desk over and scream on a regular basis. Its UI and functionality are trash compared to SolidWorks or even Sketchup.... Anyways... 

    Once you have your tooling in a library, it should only take a few minutes to construct it. If you have the part available then go into "lego mode" and figure it all out, then assemble the model. If you don't then it could take a bit longer, but within an hour should be reasonable. 

Reply
  • That is VERY dependent on what CAD software you have Joy
    I used SolidWorks before, now at this job I am forced to use only Creo 7 which makes me want to flip my desk over and scream on a regular basis. Its UI and functionality are trash compared to SolidWorks or even Sketchup.... Anyways... 

    Once you have your tooling in a library, it should only take a few minutes to construct it. If you have the part available then go into "lego mode" and figure it all out, then assemble the model. If you don't then it could take a bit longer, but within an hour should be reasonable. 

Children