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How to do Vision only alignment on Optiv 2Z443 multi sensor

Hi All,
I am wondering if their is an accurate way and how to do a vision only alignment on the optiv 2Z443?? I am working on some very small medical parts with small features that is why I want to use vision only. I have the part just laying on the table with nothing holding it down due to its size so I can't touch with the probe since it is not secure to the table. Any input is appreciated!
  • 67 views and no answers! I thought it might be a dumb question! But I am not sure if this is possible to do or not. I am going to assume if no reply it is not possible to do a vision alignment. Which sucks!!!
  • I think you can do it, but I'm not sure of the accuracy !
    The only constraint is to do a 3D alignment with a 2D probe. For example, if you have a plane at the top, you have to measure some points with auto focus, and then create the plane.
    With 2 holes, you can create a line and a origin on the first hole (i say it in theory, i don't know about your part !).
    If you want to estimate the accuracy, you will have to check the flatness, it will give you an idea of what you're measuring...
  • Jefman is right, you can do a alignment with vision and it does have some accuracy loss depending on the part. The thing that concerns me is that you are not using anything to keep it from moving. What is stopping it from possibly rocking, sliding, shifting, or anything? You first need to have something keeping it from moving, whether that is putty, a corner viewer and a pusher, or something that still allows you to measure everything.

    In regards to the alignment, Jefman is right. You can do all the aligning with the vision, for a plane you would use 3-4 focus points and construct a plane then level, you can use 2 focus points on a edge and construct the line using that to rotate to, and 1 focus point on a edge to lock the last axis. It can be that simple. There are several ways to accomplish alignments with vision only functions, but it is understanding the system and capabilities to know what you are able to do. I will say that some machines (not sure on yours) have accuracy issues more in the Z axis then the X/Y. Like Jefman said you will have to do tests to see what will work. You could do a testing study from probing to vision to see what discrepancy you might run into.

    One last thing, your last comment probably isn't needed. What you are missing is that you may have had 67 views, maybe 67 people are just curious as to what the process would be or are wondering the same thing. This is a user based forum where people are going to look just to see what the questions/answers are because it might help them now or sometime down the road. As you know we are not paid for helping so we will help as soon as we come across the question, if we can. If you need immediate assistance you might want to consider training onsite to help you with your specific parts and machine. You asking open ended questions and then following up with a complaint that no one is helping doesnt make anyone want to help you.
  • maybe 67 people are just curious .


    I would be one those just curious people I read this thread and I have never touch a lazer or camera system in my life. Been to a couple of demos at some seminars but never used one. The
    Leica system with the lazer that follows the probe ball that was a cool demo. Amazing what there coming out with.
  • Adam, you should look at the Leica 402 laser tracker. That uses the SMR (or ball probe) and now a newly introduced (Nov 2013) B-probe. It is pretty cool. That is not really inline with the vision systems but none the less cool.
  • Adam, you should look at the Leica 402 laser tracker. That uses the SMR (or ball probe) and now a newly introduced (Nov 2013) B-probe. It is pretty cool. That is not really inline with the vision systems but none the less cool.
    Yes that was the demo I watched. They pulled a vehicle in to measure on the shop floor where they were doing the demo. They were comparing the romer arm system that had the lazer scanner with the ball probe to the Leica 402 lazer tracker. It was like a compitition between the Leica rep and the romer rep on who had the better system. Very cool stuff and maybe one day when I can master this touch probe systems "in like another 20 years" I would love to learn the ropes on these newer type lazer systems. Almost 6 years now and counting on my touch probe system and still learning lots on a day to day basis.
  • Hi Adam and Wicked_tatoo !
    Very cool, you're right, 17 pounds, 160 m, and.... X$, with X not very cool !!!!!
    I have the ancester of AT402 with T-probe and T-scan, it's nice to work with it (not PC-DMIS), but I can't get the same accuracy than a MMT, sometimes it's surprising...
    You just have to understand that's not a bridge CMM, and don't forget it during use !!!!
    Another point, with a scanner, you measure a lot of points, and you need to have a "strong" PC to treat measurements...

    Like said Wicked_tatoo "That is not really inline with the vision systems but none the less cool. " !!!
  • Jefman, So I am guessing that you have a 901. The thing is the original AT401 wasn't meant to do anything but probe measurements with a SMR. The fact that they introduced the B-Probe is pretty sweet even with the loss of accuracy. As far as price, I didn't think it was bad considering is measuring volume and accuracy. I think its funny that the Romer Rep went against the Leica Rep, to me they really are different systems not to mention they brought in a scanning arm. Both have their high points but both could struggle in each others "market".

    Jefman, if you don't like PcDmis (which I understand from the scanning side) why not look at Polyworks? That works really well with that system. Its not as strong with GD&T but works for most companies. And you are absolutely correct in regards to the PC, don't skimp as this is the one area most companies lack to put any investment in. The get the computer that gets by rather then the one that is a over achiever.

    At any rate there is some really cool technology out there and I can't wait to see what is out there in another 3-5 years.
  • Hi Wicked_tatoo, I don't have a AT901, just a LTD706 (it'a an "old" tracker : 2008 !!!), and I work with Polyworks on it. It's a good software, on which you can plug an arm or a manual cmm... GD&T is correct, and somme functions are fun (export matrix for example), but there's not the tool box of PC-DMIS, and some functions like loops aren't really present. And I don't know what would this software if it had to command a cmm !!!!! There are some bugs in PC-DMIS, but I like it !
  • Yeah, Poly is a pretty solid software for the portable market. You are right in regards to loops, and up until recently it really wasnt strong when it came to rerunning parts. I have heard that they are starting to get better for multiple part inspections. PcDmis is great software and it does have some bugs, but solid overall. I do feel (my personal opinion) that the software would maybe be less "buggy" if they broke the link of placing all versions (portable, conventional, tracker, vision) in one into individuals. Sometimes I wonder if the issues that they face are from trying to fix something in one version and end up affecting something in another. At any rate I still stand beside PcDmis and feel it is one of the best softwares out there.