hexagon logo
Register Sign in
  • Replies 17 replies
  • Subscribers 221 subscribers
  • Views 181 views
  • Users 0 members are here
Options
Related

2-2-2 iterative alignment

juliansegura
Hi everybody,

Let me start off by saying I just took the hexagon 201 course so I am trying to get more familiar with it here at work.

At my company we work with a lot of castings. They usually use datum targets to identify datum A, B, and C. I Have attached a part I am currently working on with the relevant information. As you can see it has two points for A, two for B and two for C. How would you use these points for an iterative alignment? As far as I have read through the forums I've only seen examples with the 3-2-1 method. When I try using 2 points to level it just give me a message saying I need 3 points. I have seen on the pcdmis website a table saying I could use 3 circles in DCC mode but not much more information on that.

Thank you for your help.
Parents
  • Talk to the whoever programmed the NC cuts and your machinists.

    If they are supporting the part or clamping on those datum points, then you should try to match what they're doing.

    I wouldn't just ignore the targets until you do that.

    That being said, if you're just checking completely machined parts, the datum targets may not be important any more.


    If you start with a casting, it typically works like this: (can have a lot more CMM programs, simplified version)

    CMM Program 1: Casting using datum targets > CMM Program 2: 'in process' tape with datum targets transitioning to print dimension datums > CMM Program 3: final inspection to print datums
Reply
  • Talk to the whoever programmed the NC cuts and your machinists.

    If they are supporting the part or clamping on those datum points, then you should try to match what they're doing.

    I wouldn't just ignore the targets until you do that.

    That being said, if you're just checking completely machined parts, the datum targets may not be important any more.


    If you start with a casting, it typically works like this: (can have a lot more CMM programs, simplified version)

    CMM Program 1: Casting using datum targets > CMM Program 2: 'in process' tape with datum targets transitioning to print dimension datums > CMM Program 3: final inspection to print datums
Children
No Data
© 2024 Hexagon AB and/or its subsidiaries. Privacy Policy | Cloud Services Agreement