Open Source Sofware

» Topic: Problems With a Simple Part

Home New Forums BobCAD-CAM Forums Problems With a Simple Part

This topic contains 5 replies, has 2 voices, and was last updated by  Nick 3 years, 2 months ago.

Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
    Posts
  • #15295

    Nick
    Participant

    I’ve tried every possible combination of solids including subtracting the end cylinders before once again adding them to ensure there was no wierd geometry.
    Attached is a screenshot of the part, the through hole pockets fine, the edge of the protruding disc profiles fine but I haven’t found any function that will generate a path to remove the rest of the material from the long flat surface.
    Surface cuts into the protruding disc, Advanced Rough ignores the selection and boundary and just does it’s own thing.
    I must be missing something very basic but if so it’s not covered in any of the Video Professsor or online videos that I can find.
    I’ve spent a full day trying to find a workaround to force machining of a very simple part and failed, I’d really appreciate any pointers,
    Regards,
    Nick

    Attachments:
    You must be logged in to view attached files.
    #15297

    Nick
    Participant

    I’ve tried Facing selecting the flat surface and using a 2D circle as the limit, it “Profiles” the circle and ignores the large area to be faced :-(

    #15300

    Mike
    Participant

    Hello Nick,

    If I understand what is going on then this may work for you. But let me know if I am doing anything wrong. What i did was draw a part similar to yours and added a pocketing toolpath using advanced Pocketing. What you do is break your part down into 2d geometry and change any of the lines where the tool can leave the part to Dotted lines. Then select those as your geometry for your pocket. On the Patterns page of the pocket select Advanced Rough and put a check mark in Adaptive roughing. Then compute the toolpath and on any line that was set to dotted the tool will be sure to clean up the edges as well as the solid line for the circle on the right. See that attached part file and let me know if it is kind of what you are looking for.

    #15301

    Mike
    Participant

    Hello Nick,

    If I understand what is going on then this may work for you. But let me know if I am doing anything wrong. What i did was draw a part similar to yours and added a pocketing toolpath using advanced Pocketing. What you do is break your part down into 2d geometry and change any of the lines where the tool can leave the part to Dotted lines. Then select those as your geometry for your pocket. On the Patterns page of the pocket select Advanced Rough and put a check mark in Adaptive roughing. Then compute the toolpath and on any line that was set to dotted the tool will be sure to clean up the edges as well as the solid line for the circle on the right. See that attached part file and let me know if it is kind of what you are looking for

    Attachments:
    You must be logged in to view attached files.
    #15312

    Nick
    Participant

    Mike,
    Thanks for your suggestion, it looks like it will remove the required metal for the job.
    I’m not sure it’s going to give me a neat edge though, as the pocketing feature specifically avoids crossing the outside line of the geometry and this is likely to give me a raggedy edge to clean up.
    Constructing an additional perimiter line outside the surface looks to be the way to go, I naively imagined that there would be features that could work around hard edged protrusions on flat surfaces on solid models ;-)
    Regards,
    Nick

    #15328

    Nick
    Participant

    Mike,
    I’ve got it now,
    Many Thanks,
    Nick

Viewing 6 posts - 1 through 6 (of 6 total)

You must be logged in to reply to this topic.

Forum Account

     Lost Password / Register   

Sharing

facebooktwittergoogle_pluspinterestlinkedinmail