hexagon logo
Register Sign in
  • Replies 5 replies
  • Subscribers 31 subscribers
  • Views 82 views
  • Users 0 members are here
Options
Related

Dimensioning Difficulties

Markus
I am attempting to dimension the few cylinders on this door that are cut with a 15 degree angle on them and then welded to the bent plate. Previously, I had intersected the cylinder and the large plane (plane 2), created a point and then dimensioned to the end of the part. They have dimensioned now to be measured from the center of the cylinder to the intersecting line of plane 2 and plane 3 rather than the edge (plane 3). When I program it on the CAD, the measurement comes out correct. When I actually run it, the cylinder is down and to the right by .100 or so. We have verified using hand tools that it is pretty close to where it should be.

My first plane is off the top of the cylinder. Even that shows off center. If I do not use the CAD drawing and simply check the part, the X dimension is off between .035 and .050 (depending on which cylinder I check). The Zaxis (normally the X (it's the way he created the alignment before I got the cad)) is nearly perfect. Is there a certain order I should be creating my alignment? I'm creating a plane on the small cylinder, leveling it, creating the line, rotating it, and then doing the rest. Is there something else, I'm not considering?

Thanks for any help or suggestions at all.
Attached Files
Parents
  • Same part. Different issue. As of now, I'm not using the CAD.

    I level off the plate, rotate to a line created on the side of the part and then create X (one side of the part), Y (the edge where the end of the plate meets the top of the plate) and Z (top of plate). When I get to the posts that are cut on a 15 angle, I rotate Y 15 degrees about X and it works fine. Except when they were not cut at a 15 degree angle (I've seen 14, 14.5, 15.5). Also the weld may have pulled the post in the other axis (X) a half degree or so. This throws my X or Y out of tolerance, depending on which way the post is leaning, but if I create a separate alignment using one of the above angles, it comes in tolerance.

    Since they don't care that the post is leaning a degree or less, the parts are fine, but is there a way I can take the leaning of each post into consideration when checking them? Simply rotating everything 15 degrees works for most, but not all. I thought it may be possible to create a plane off the top of each post and create an alignment for each post, but that doesn't seem to work.
Reply
  • Same part. Different issue. As of now, I'm not using the CAD.

    I level off the plate, rotate to a line created on the side of the part and then create X (one side of the part), Y (the edge where the end of the plate meets the top of the plate) and Z (top of plate). When I get to the posts that are cut on a 15 angle, I rotate Y 15 degrees about X and it works fine. Except when they were not cut at a 15 degree angle (I've seen 14, 14.5, 15.5). Also the weld may have pulled the post in the other axis (X) a half degree or so. This throws my X or Y out of tolerance, depending on which way the post is leaning, but if I create a separate alignment using one of the above angles, it comes in tolerance.

    Since they don't care that the post is leaning a degree or less, the parts are fine, but is there a way I can take the leaning of each post into consideration when checking them? Simply rotating everything 15 degrees works for most, but not all. I thought it may be possible to create a plane off the top of each post and create an alignment for each post, but that doesn't seem to work.
Children
No Data
© 2024 Hexagon AB and/or its subsidiaries. Privacy Policy | Cloud Services Agreement